Friday, May 25, 2012

KTFX [251956]: Preliminary Local Storm Report...summary

NWUS55 KTFX 251956
LSRTFX

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE GREAT FALLS MT
155 PM MDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0700 AM SNOW 5 SW PONY 45.60N 111.96W
05/25/2012 E6.0 INCH MADISON MT MESONET

ESTIMATED 6 INCHES OF NEW SNOW IN THE PAST 24 HOURS AT
ALBRO LAKE SNOTEL. ELEVATION IS 8300 FEET.

0700 AM SNOW 14 SW HEART BUTTE 48.13N 113.02W
05/25/2012 E5.0 INCH PONDERA MT MESONET

ESTIMATED 5 INCHES OF NEW SNOW IN THE PAST 24 HOURS AT
THE BADGER PASS SNOTEL SITE. ELEVATION IS 6900 FEET.

0700 AM SNOW 24 W BYNUM 47.92N 112.82W
05/25/2012 E2.0 INCH TETON MT MESONET

ESTIMATED 2 INCHES OF NEW SNOW IN THE PAST 24 HOURS AT
THE MOUNT LOCKHART SNOTEL. ELEVTION IS 6400 FEET.

0700 AM SNOW 9 NNW LINCOLN 47.08N 112.73W
05/25/2012 E3.0 INCH LEWIS AND CLARK MT MESONET

ESTIMATED 3 INCHES OF NEW SNOW IN THE PAST 24 HOURS AT
THE COPPER CAMP SNOTEL. ELEVATION IS 6950 FEET.

0700 AM SNOW 14 NNE LAKEVIEW 44.79N 111.71W
05/25/2012 E4.0 INCH MADISON MT MESONET

ESTIMATED 4 INCHES OF NEW SNOW IN THE PAST 24 HOURS AT
THE TEPEE CREEK SNOTEL. ELEVATION IS 8000 FEET.

0700 AM SNOW 6 N BASIN 46.36N 112.26W
05/25/2012 E3.0 INCH JEFFERSON MT MESONET

ESTIMATED 3 INCHES OF NEW SNOW IN THE PAST 24 HOURS AT
THE ROCKER PEAK SNOTEL. ELEVATION IS 8000 FEET.

0700 AM SNOW 14 NE BELGRADE 45.89N 110.94W
05/25/2012 E4.0 INCH GALLATIN MT MESONET

ESTIMATED 4 INCHES OF NEW SNOW AT THE BRACKET CREEK
SNOTEL. ELEVATION IS 7320 FEET.

1200 PM HEAVY SNOW 5 SW PONY 45.60N 111.96W
05/25/2012 E13.0 INCH MADISON MT MESONET

ESTIMATED 13 INCHES OF NEW SNOW IN THE PAST 24 HOURS AT
THE ALBRO LAKE SNOTEL. ELEVATION IS 8300 FEET.


&&

$$

BRUSDA

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KTFX [251955]: Preliminary Local Storm Report

NWUS55 KTFX 251955
LSRTFX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
155 PM MDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1200 PM HEAVY SNOW 5 SW PONY 45.60N 111.96W
05/25/2012 E13.0 INCH MADISON MT MESONET

ESTIMATED 13 INCHES OF NEW SNOW IN THE PAST 24 HOURS AT
THE ALBRO LAKE SNOTEL. ELEVATION IS 8300 FEET.


&&

$$

BRUSDA

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KVEF [251950]: Preliminary Local Storm Report

NWUS55 KVEF 251950
LSRVEF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1250 PM PDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1200 PM NON-TSTM WND GST 2 SE YUCCA FLAT (NTS SR 36.94N 116.04W
05/25/2012 M66.00 MPH NYE NV MESONET

DECON GROUND DISPOSAL MESONET SITE MEASURED A 66 MPH WIND
GUST AT AN ELEVATION OF 3916 FEET.

1234 PM NON-TSTM WND GST RED ROCK CANYON RAWS 36.14N 115.43W
05/25/2012 M59.00 MPH CLARK NV MESONET

RED ROCK CANYON RAWS RECORDED A GUST OF 59 MPH AT AN
ELEVATION OF 3756 FEET.


&&

$$

STACHELSKI

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 251935
SWODY1
SPC AC 251933

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0233 PM CDT FRI MAY 25 2012

VALID 252000Z - 261200Z

...THERE IS A SLGT RISK OF SVR TSTMS OVER THE CNTRL PLAINS...

...THERE IS A SLGT RISK OF SVR TSTMS OVER A SMALL PORTION OF NRN AND
CNTRL NY...AND NRN VT...

...FL...
HAVE REMOVED HAIL PROBABILITIES AS IT APPEARS CONVECTION IS
STRUGGLING TO FORM...PERHAPS DUE TO THE VERY DRY AIR ALOFT. A FEW
STRONG WIND GUSTS WILL REMAIN POSSIBLE WITH ANY STORMS THAT
FORM...MOST LIKELY OVER SWRN PORTIONS OF THE PENINSULA.

...NY...
HEATING CONTINUES WITH CU FIELDS GRADUALLY DEVELOPING.
HOWEVER...THEY HAVE BEEN RELATIVELY MEAGER IN STRENGTH DUE TO WEAK
FORCING. STILL...THERE IS A HIGH CONDITIONAL THREAT OF MARGINALLY
SEVERE HAIL OVER NY MAINLY AROUND OR AFTER 00Z WITH THE COLD FRONT.
HAVE TIGHTENED THE WRN EDGE OF THE SLIGHT AND EXPANDED SLIGHTLY
NEWD. REFER TO MCD 0894 FOR MORE INFORMATION.

...OH...
HAVE DROPPED THE SLIGHT RISK OVER OH AS THERE IS NO SHEAR AND
VISIBLE IMAGERY SUGGESTS EVENTUAL DEVELOPMENT WILL BE ISOLATED. A
MARGINALLY SEVERE HAIL OR WIND REPORT WILL REMAIN POSSIBLE.

..JEWELL.. 05/25/2012

.PREV DISCUSSION... /ISSUED 1130 AM CDT FRI MAY 25 2012/

...NORTHEAST...
A VIGOROUS SHORT WAVE TROUGH ACROSS SRN ONTARIO IS FORECAST TO
CONTINUE TO LIFT RAPIDLY NEWD ACROSS JAMES BAY AND OVER QUEBEC
THROUGH THE DAY. COLD FRONT ASSOCIATED WITH THIS DISTURBANCE IS
CLEARLY EVIDENT IN SURFACE AND SATL DATA AND WILL CONTINUE TO SPREAD
EAST ACROSS LAKES ERIE AND ONTARIO...AND TO NRN NY LATER THIS
AFTERNOON/EARLY EVENING. THE FRONT WILL THEN SETTLE ACROSS NRN NEW
ENGLAND THROUGH TONIGHT. STRONGEST FORCING FOR ASCENT ALONG THE COLD
FRONT WILL EXIST NORTH OF THE BORDER IN QUEBEC WHERE SEVERE STORMS
APPEAR MORE LIKELY. WHILE LOW LEVEL CONVERGENCE AND LIFT ALONG THE
FRONT WITH SWD/SWWD EXTENT WILL BE WEAKER...LATEST GUIDANCE DEPICTS
AREAS OF WEAK TO MODEST DESTABILIZATION FROM NY ACROSS NRN VT BY
LATER TODAY. MLCAPE VALUES IN THESE AREAS SHOULD REACH THE 500-1000
J PER KG RANGE WHERE FORECAST SOUNDINGS FROM NAM AND WRF-ARW MODELS
DEPICT PRONOUNCED LOW LEVEL VERTICAL SHEAR. ANY STORMS THAT CAN
DEVELOP WILL EXIST IN AN ENVIRONMENT WITH SUFFICIENT VERTICAL SHEAR
FOR UPDRAFT PERSISTENCE AND ROTATION. GREATEST UNCERTAINTY EXISTS
WITH REGARD TO STORM COVERAGE GIVEN THE RAPID TRANSLATION OF THE
UPPER TROUGH AWAY FROM THE AXIS OF STRONGER POTENTIAL INSTABILITY
LATER TODAY. LATEST INDICATIONS CONTINUE TO SUPPORT THE DEVELOPMENT
OF AT MOST SCATTERED TSTMS ALONG THE FRONT DURING A RELATIVELY
NARROW WINDOW IN SPACE/TIME FROM LATE AFTERNOON INTO THE EVENING.
GIVEN INSTABILITY AND SHEAR FORECAST OVER UPSTATE NY INTO NRN VT...A
FEW ROTATING STORMS MAY EVOLVE IN THIS PERIOD AND POSE SOME THREAT
OF DAMAGING WINDS OR PERHAPS A TORNADO. SPC HAIL MODEL GUIDANCE
INDICATES ONLY ISOLATED HAIL PERHAPS TO AROUND 1 INCH IN DIAMETER.

...OH VALLEY...
FARTHER SW AHEAD OF THE COLD FRONT...SCATTERED LESS-ORGANIZED STORMS
APPEAR LIKELY AS A MOIST AND INCREASINGLY UNSTABLE AIRMASS FUELS
DEVELOPMENT FROM OH WWD ACROSS IND/IL. THE BULK OF THIS ACTIVITY
WILL OCCUR BENEATH WEAK MID LEVEL HEIGHT RISES AND ON THE SRN
PERIPHERY OF STRONGER MID LEVEL FLOW ACROSS THE GREAT LAKES.
MAGNITUDE OF INSTABILITY AND SUFFICIENT LIFT ALONG THE FRONT
SETTLING INTO THIS REGION SHOULD CONTRIBUTE TO NUMEROUS STORMS...A
FEW OF WHICH MAY BE CAPABLE OF SEVERE HAIL/WIND EVENTS THROUGH LATE
TODAY.

...WRN KS TO ERN TX PANHANDLE/WRN OK REGION...
ISOLATED TO WIDELY SCATTERED TSTMS ARE POSSIBLE ALONG DRYLINE DURING
21Z-00Z TIME FRAME...DURING PERIOD OF MOST INTENSE BOUNDARY-LAYER
WARMTH/MIXING. CONVECTION NEAR TRIPLE POINT AND ADJOINING
WARM-FRONTAL SEGMENT MAY PERSIST NOCTURNALLY...LEADING TO UPSCALE
GROWTH/MERGER WITH ELEVATED CONVECTION FARTHER NE OVER CENTRAL
PLAINS.

MOST FAVORABLE LOW-LEVEL HODOGRAPHS AND DEEP-SHEAR PROFILES FOR
SUPERCELLS WILL BE NEAR W-CENTRAL KS TRIPLE POINT...DECREASING BUT
REMAINING AT LEAST MRGLLY FAVORABLE WITH SWD EXTENT WRN OK. KS
JUXTAPOSITION OF BOUNDARIES WILL YIELD RELATIVELY MAXIMIZED
JUXTAPOSITION OF FAVORABLE SHEAR AND LOW-LEVEL CONVERGENCE.
ENHANCED LOW-LEVEL VORTICITY AND SRH ALSO WILL ACCOMPANY BACKED SFC
WINDS ALONG WARM FRONT...FOR ANY CONVECTION THAT CAN DEVELOP AT
TRIPLE POINT OR NEARBY DRYLINE SEGMENT AND MOVE DEVIANTLY RIGHTWARD
IN THAT PART OF WARM-FRONTAL ZONE WHERE CAPE REMAINS SFC-BASED. FCST
HODOGRAPHS SUGGEST SMALL AREA OF 200-400 J/KG 0-1 KM AGL SRH
ACCOMPANYING WARM FRONT...DECREASING SWD. THESE FACTORS SHOULD FOCUS
TORNADO POTENTIAL NEAR TRIPLE POINT AND WARM FRONT. LARGE HAIL ALSO
IS LIKELY WITH ANY SUPERCELLS.

SPECIFIC FOCI FOR CONVECTIVE INITIATION FARTHER S ACROSS WRN OK/ERN
TX PANHANDLE REGION ARE RATHER NEBULOUS. HOWEVER...SOME
CONVECTION-ALLOWING PROGS INDICATE DEVELOPMENT IN THIS REGION
BETWEEN 21Z-00Z. FCST SOUNDINGS SUGGEST SFC TEMPS 90S F AND DEW
POINTS 60S E OF DRYLINE WITH RESULTING MLCAPE 2000-3000 J/KG... AND
30-40 KT EFFECTIVE SHEAR MAGNITUDES. HODOGRAPHS ENLARGE AFTER DARK
AS CINH STRENGTHENS CONSIDERABLY...BUT WITH SOME OVERLAPPING TIME
WINDOW WHERE SFC PARCELS STILL ARE ACCESSIBLE WITH AID OF INTERNALLY
FORCED STORM DYNAMICS.

...NW TX TO RIO GRANDE...
VERTICAL SHEAR WILL WEAKEN OVER THIS REGION SWD FROM SWRN OK...WHILE
INITIATION POTENTIAL REMAINS VERY CONDITIONAL/ISOLATED IN NATURE.
ACTIVITY OVER THIS REGION GENERALLY SHOULD BE MORE PURELY DIURNALLY
DRIVEN AND SHORT-LIVED AS WELL...GIVEN PRESENCE OF VERY STG CAPPING
AND WARM 700-850 MB LAYER IN MORNING RAOBS THAT PERSISTS THROUGH
AFTERNOON. THEREFORE...UNCONDITIONAL SVR PROBABILITIES ARE KEPT AT
MRGL/5% LEVELS. HOWEVER...ANY TSTMS THAT DO FORM AWAY FROM EXISTING
CLOUD COVER WILL BE HIGH-BASED...ATOP INTENSELY HEATED/WELL-MIXED
BOUNDARY LAYER...AND CAPABLE OF STG-SVR DOWNBURSTS AND ISOLATED
LARGE HAIL. MOST PROBABLE AREA FOR DEVELOPMENT MAY BE OVER REGION
FROM PERMIAN BASIN SWD OVER LOWER PECOS/RIO GRANDE REGIONS. MOISTURE
CHANNEL IMAGERY INDICATES SUBTLE/MID-UPPER LEVEL
PERTURBATIONS MOVING NNEWD ACROSS BIG-BEND REGION AND OVER
CENTRAL/N-CENTRAL MEX NNE OF PAC HURRICANE BUD. EACH MAY ENHANCE
LARGE-SCALE ASCENT AND THERMODYNAMIC ENVIRONMENT ALOFT FOR
LATE-AFTERNOON TSTM POTENTIAL OVER THIS CORRIDOR.

...CNTRL PLAINS/MISSOURI VALLEY...
THE NOCTURNAL ENHANCEMENT TO THE LLJ WILL LIKELY GIVE RISE TO AN
INCREASE IN ELEVATED TSTMS ACROSS THE MID-MO VALLEY TONIGHT WHERE
THE PRESENCE OF MODERATE-STRONG INSTABILITY WILL PROMOTE EMBEDDED
SUPERCELLS CAPABLE OF MAINLY LARGE HAIL.

...FL...
SCATTERED STRONG TO ISOLATED SEVERE STORMS WITH WINDS AND PERHAPS
SOME HAIL APPEAR LIKELY ACROSS PARTS OF S FL LATER THIS AFTERNOON.
FLOW REGIME SHOULD CONTRIBUTE TO SWD/SWWD MOVING MULTICELL STORMS
OCCASIONALLY STRENGTHENING NEAR BOUNDARY INTERSECTIONS AND/OR CELL
MERGERS.

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MESO: Mesoscale Discussion 0894

ACUS11 KWNS 251908
SWOMCD
SPC MCD 251908
NYZ000-252045-

MESOSCALE DISCUSSION 0894
NWS STORM PREDICTION CENTER NORMAN OK
0208 PM CDT FRI MAY 25 2012

AREAS AFFECTED...NY

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 251908Z - 252045Z

PROBABILITY OF WATCH ISSUANCE...40 PERCENT

SUMMARY...STORMS MAY INCREASE IN COVERAGE ACROSS PORTIONS OF
NY...FROM THE SRN TIER ACROSS THE FINGER LAKES REGION...OVER THE
NEXT SEVERAL HOURS AS A COLD FRONT MOVES INTO THE STATE FROM THE
WEST. A FEW OF THESE STORMS MAY PRODUCE GUSTY WINDS AND HAIL. A
WATCH MAY BE NEEDED IF SEVERE STORM POTENTIAL BECOMES MORE CERTAIN
IN THE NEXT FEW HOURS.

DISCUSSION...ISOLATED SHOWERS/TSTMS RECENTLY DEVELOPED ALONG A
PRE-FRONTAL TROUGH MOVING ACROSS LAKE ONTARIO AND INTO WRN NY ATTM.
THIS ACTIVITY WAS FURTHER SUPPORTED BY A WEAK SHORT WAVE TROUGH/PV
ANOMALY THAT HAS PEELED OFF THE MUCH STRONGER SYSTEM NOW CROSSING
THE ONTARIO/QUEBEC BORDER IN CANADA. MEANWHILE...A COLD FRONT WAS
MAKING EWD PROGRESS ACROSS SRN ONTARIO AND WILL MOVE TO THE NORTH
SHORE OF LAKE ERIE...AND OVER THE WRN END OF LAKE ONTARIO...IN THE
NEXT COUPLE OF HOURS.

AIRMASS OVER MUCH OF WRN AND CNTRL NY HAS WARMED AND BECOME UNSTABLE
WITH MLCAPE RANGING FROM AOA 1000 J/KG ON THE NY/PA BORDER TO ABOUT
500 J/KG OVER THE ADIRONDACKS WHERE BROKEN CLOUD COVER PERSISTS.
ONGOING SHOWERS/STORMS NOW APPEAR TO BE WEAKENING BUT NEW
DEVELOPMENT IS POSSIBLE NEAR INSTABILITY AXIS OVER THE NEXT 1-2
HOURS PER WRF-HRRR. IT IS LIKELY THAT STRONGER ASCENT WITH THE COLD
FRONT WILL BE REQUIRED TO AID IN THE INITIATION OF MORE
ROBUST/NUMEROUS STORMS LATER THIS AFTERNOON AND INTO EARLY EVENING.

DEEP-LAYER FLOW AND RESULTING VERTICAL SHEAR WILL CONTINUE TO
INCREASE THROUGH THE REST OF THE AFTERNOON. LOW-LEVEL FLOW HAS
ALREADY STRENGTHENED PER BUF VWP WITH 30-35KT SWLY WINDS IN THE
LOWEST 2KM. AMBIENT SHEAR SHOULD SUPPORT THE DEVELOPMENT OF A FEW
SEVERE STORMS IF ADDITIONAL DEVELOPMENT OCCURS ALONG THE ADVANCING
FRONT LATER TODAY. AREA WILL CONTINUE TO BE MONITORED FOR A POSSIBLE
WATCH.

..CARBIN.. 05/25/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...BTV...ALY...BGM...BUF...

LAT...LON 44357462 43847429 43397445 42797501 42267566 42077677
42157743 42547756 42987741 43347667 44007606 44427531
44507505 44357462

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KREV [251856]: Preliminary Local Storm Report

NWUS55 KREV 251856
LSRREV

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RENO NV
1149 AM PDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1025 AM SNOW RENO 39.54N 119.82W
05/25/2012 M0.2 INCH WASHOE NV OFFICIAL NWS OBS

TRAINED WEATHER OBSERVER REPORTED 0.2 INCHES OF SNOWFALL
AND SMALL HAIL AT THE RENO-TAHOE INTERNATIONAL AIRPORT.
OBSERVER ALSO REPORTED 0.23 INCHES OF RAINFALL.

1050 AM HAIL 10 SE HALLELUJAH JUNCTI 39.68N 119.91W
05/25/2012 M0.25 INCH WASHOE NV TRAINED SPOTTER

TRAINED WEATHER SPOTTER REPORTED SMALL PEA SIZED HAIL
COVERING THE GROUND.

1050 AM HAIL 2 E FERNLEY 39.61N 119.20W
05/25/2012 E0.25 INCH LYON NV TRAINED SPOTTER

TRAINED WEATHER SPOTTER REPORTED SMALL HAIL AND VERY LOW
VISIBILITY ALONG INTERSTATE 80 EAST OF FERNLEY.

1148 AM SNOW 1 NNW COLD SPRINGS VALL 39.69N 119.97W
05/25/2012 M0.5 INCH WASHOE NV TRAINED SPOTTER

TRAINED WEATHER SPOTTER REPORTED 0.5 INCHES OF NEW
SNOWFALL AND A CURRENT TEMPERATURE OF 37 DEGREES.


&&

$$

MCGUIRE

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KVEF [251834]: Preliminary Local Storm Report

NWUS55 KVEF 251834
LSRVEF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1134 AM PDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0924 AM NON-TSTM WND GST 5 ENE BOULDER CITY 36.01N 114.74W
05/25/2012 M58.00 MPH CLARK NV MESONET

HOOVER DAM BYPASS BRIDGE MID-SPAN WEATHER STATION

RECORDED A 58 MPH WIND GUST AT AN ELEVATION OF 1436 FEET.


&&

$$

STACHELSKI

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KFGZ [251822]: Preliminary Local Storm Report

NWUS55 KFGZ 251822
LSRFGZ

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
1122 AM MST FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1100 AM DUST STORM CHINLE 36.15N 109.58W
05/25/2012 APACHE AZ LAW ENFORCEMENT

0.5 MILE VISIBILITY IN DUST SINCE EARLY MORNING


&&

EVENT NUMBER FGZ1200046

$$

DJO

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KFGZ [251820]: Preliminary Local Storm Report

NWUS55 KFGZ 251820
LSRFGZ

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
1120 AM MST FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1100 AM DUST STORM MANY FARMS 36.35N 109.62W
05/25/2012 APACHE AZ PUBLIC

0.25 MILE VISIBILITY IN DUST SINCE EARLY MORNING


&&

EVENT NUMBER FGZ1200045

$$

DJO

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KSLC [251804]: Preliminary Local Storm Report

NWUS55 KSLC 251804
LSRSLC

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1204 PM MDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0955 AM NON-TSTM WND GST 3 NNW COVE FT 38.64N 112.61W
05/25/2012 M60.00 MPH MILLARD UT MESONET

DOG VALLEY SENSOR

1010 AM NON-TSTM WND GST 10 NE BOULDER 38.04N 111.33W
05/25/2012 M58.00 MPH GARFIELD UT MESONET

SR-12 AT BOULDER SUMMIT

1015 AM NON-TSTM WND GST 2 NW CEDAR CITY 37.71N 113.10W
05/25/2012 M59.00 MPH IRON UT MESONET

CEDAR CITY AIRPORT


&&

$$

HOSENFELD

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KCYS [251802]: Preliminary Local Storm Report

NWUS55 KCYS 251802
LSRCYS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
1202 PM MDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1150 AM NON-TSTM WND GST LARAMIE 41.31N 105.58W
05/25/2012 M58 MPH ALBANY WY ASOS


&&

$$

BCHAPMAN

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KVEF [251759]: Preliminary Local Storm Report

NWUS55 KVEF 251759
LSRVEF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1059 AM PDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1025 AM NON-TSTM WND GST DESERT ROCK AIRPORT 36.62N 116.03W
05/25/2012 M61.00 MPH NYE NV ASOS

DESERT ROCK AIRPORT RECORDED A GUST OF 61 MPH AT AN
ELEVATION OF 3301 FEET.


&&

$$

STACHELSKI

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KEAX [251735]: Preliminary Local Storm Report

NWUS53 KEAX 251735
LSREAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1235 PM CDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1000 AM HEAVY RAIN 3 SW GRANDVIEW 38.86N 94.57W
05/25/2012 M4.17 INCH JACKSON MO MESONET

STORMWATCH RAIN GAUGE AT 150 HIGHWAY AND PROSPECT. STORM
TOTAL ENDING AT 10 AM.

1000 AM HEAVY RAIN STANLEY 38.85N 94.67W
05/25/2012 M3.86 INCH JOHNSON KS MESONET

MISSION RD. AT NEGRO CREEK. STORM TOTAL ENDING AT 10 AM.


&&

$$

BOOKBINDER

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DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 251731
SWODY2
SPC AC 251730

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1230 PM CDT FRI MAY 25 2012

VALID 261200Z - 271200Z

...THERE IS A SLGT RISK OF SVR TSTMS OVER CNTRL AND SRN MN...NRN
IA...WRN WI...FAR ERN SD...

...SYNOPSIS...
AN EXPANSIVE UPPER LOW WILL BE CENTERED OVER THE GREAT BASIN SAT
MORNING...AND WILL EJECT NEWD ACROSS THE ROCKIES THROUGH THE PERIOD.
IN ADVANCE OF THIS TROUGH...A BROAD AREA OF SWLY FLOW WILL EXIST
OVER THE PLAINS...WITH AN UPPER RIDGE CENTERED OVER THE MIDDLE AND
LOWER MS VALLEY.

AT THE SURFACE...A WARM FRONT WILL LIFT NWD OUT OF NEB AND IA INTO
SD...MN AND WI BY AFTERNOON. THE ERN PORTION OF THIS BOUNDARY WILL
BE WEAK BUT WILL EXIST OVER NRN IND...OH AND PA. DEWPOINTS IN THE
MID TO UPPER 60S F WILL EXIST FROM THE CNTRL PLAINS INTO THE OH
VALLEY...RESULTING IN AMPLE INSTABILITY FOR THUNDERSTORMS.

TO THE W AND LATER IN THE DAY...LOW PRESSURE WILL DEEPEN OVER SERN
WY AND NERN CO AHEAD OF THE ADVANCING UPPER TROUGH. STRONG FORCING
WILL DEVELOP IN THIS REGION...BUT INSTABILITY WILL BE WEAK.

...NRN PLAINS/UPPER MS VALLEY...
A FAIRLY COMPLEX SCENARIO WILL UNFOLD ON SATURDAY. MODELS INDICATE
THAT MULTIPLE EPISODES OF STORMS WILL BE POSSIBLE...BUT THERE IS
DISAGREEMENT WITH EXACTLY WHERE THESE STORMS WILL FOCUS. IN A
GENERAL SENSE...AREAS OF STORMS SHOULD EXIST NEAR THE WARM FRONT
EARLY ON SAT...AND PERSIST AS THE FRONT LIFTS N. INSTABILITY AND
SHEAR WILL STRONGLY FAVOR SUPERCELLS CAPABLE OF VERY LARGE
HAIL...AND THE DEGREE OF INSTABILITY AND LARGE LOW LEVEL HODOGRAPHS
WOULD ALSO FAVOR TORNADOES. THE MAIN QUESTION IS STORM COVERAGE IN
THE WAKE OF THE EARLY ACTIVITY. THE SYNOPTIC PATTERN ALOFT IS
RELATIVELY NEUTRAL...SO THIS EVENT WILL ALMOST ENTIRELY BE DRIVEN BY
WARM ADVECTION. MODELS DO INDICATE A PLUME OF STRONGER HEATING AND
LOW LEVEL LAPSE RATES FROM ERN NEB AND PERHAPS INTO WRN IA...WHICH
COULD HELP BREAK THE CAP. AFTERNOON SOUNDINGS S OF THE WARM FRONT
OVER IA APPEAR CAPPED...BUT CONDITIONALLY FAVORABLE FOR SIGNIFICANT
SEVERE WEATHER. THUS...WILL INTRODUCE A BROAD SLIGHT RISK
AREA...WITH LATER OUTLOOKS PROVIDING GREATER PRECISION.

...NERN WY...
FORCING FOR ASCENT WILL INCREASE MARKEDLY AS THE SURFACE LOW DEEPENS
AND SHEAR PROFILES WILL BE QUITE STRONG AND VEERING WITH HEIGHT.
HOWEVER...INDICATIONS ARE THAT MOISTURE AND INSTABILITY WILL BE
LIMITED IN GENERAL WITH ONLY A NARROW AXIS OF UPPER 40S TO PERHAPS
LOWER 50S F DEWPOINTS EXTENDING WWD ALONG THE NEB/SD BORDER INTO FAR
ERN WY. S OF THIS NARROW CORRIDOR...DEEP MIXING WILL OCCUR WITH
INVERTED-V TYPE SOUNDINGS AND STRONG SHEAR. GIVEN THE STRENGTH OF
THE FORCING AND ADVANCING COLD FRONT DURING THE EVENING...THERE WILL
BE A THREAT OF ISOLATED SEVERE WIND...AND PERHAPS MARGINAL HAIL
DEPENDING ON HOW MUCH INSTABILITY EXISTS.

...OH...NRN WV...PA...
STRONG HEATING WILL OCCUR ACROSS THIS AREA...RESULTING IN AROUND
1500 J/KG MUCAPE AS DEWPOINTS REMAIN IN THE MID 60S F. WINDS ALOFT
WILL BE WEAK...AS WILL FORCING. HOWEVER...WITH FULL HEATING...AMPLE
MOISTURE...AND AT LEAST WEAK LOW LEVEL CONVERGENCE...ISOLATED
THUNDERSTORMS WILL BE POSSIBLE. SOME OF THESE STORMS MAY PRODUCE
LOCALLY STRONG TO SEVERE DOWNBURSTS...ALONG WITH MARGINALLY SEVERE
HAIL. SOME MODELS DO INDICATE A WEAK WAVE DEVELOPING ATOP THE UPPER
RIDGE...WHICH COULD HELP FOCUS CONVECTION INTO A SMALL CLUSTER.

..JEWELL.. 05/25/2012

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KRAH [251713]: Preliminary Local Storm Report

NWUS52 KRAH 251713
LSRRAH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
113 PM EDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0500 PM FLASH FLOOD 1 ESE LOUISBURG 36.10N 78.29W
05/24/2012 FRANKLIN NC DEPT OF HIGHWAYS

ROAD CLOSED AT EAST RIVER RD AND NC 56 DUE TO WATER
OVER THE ROAD.


&&

EVENT NUMBER RAH1200319

$$

KC

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KRAH [251711]: Preliminary Local Storm Report

NWUS52 KRAH 251711
LSRRAH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
111 PM EDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0500 PM FLASH FLOOD 1 ENE LOUISBURG 36.10N 78.29W
05/24/2012 FRANKLIN NC DEPT OF HIGHWAYS

ROAD CLOSED ON INDUSTRIAL DR IN LOUISBURG DUE TO WATER
COVERING THE ROAD.


&&

EVENT NUMBER RAH1200318

$$

KC

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KRAH [251709]: Preliminary Local Storm Report

NWUS52 KRAH 251709
LSRRAH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
108 PM EDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0500 PM FLASH FLOOD 1 NE LOUISBURG 36.11N 78.29W
05/24/2012 FRANKLIN NC DEPT OF HIGHWAYS

ROAD CLOSED AT INTERSECTION OF NC 39 US 401 AND US 561.
WATER OVER THE ROAD.


&&

EVENT NUMBER RAH1200317

$$

KC

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KEAX [251705]: Preliminary Local Storm Report

NWUS53 KEAX 251705
LSREAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1204 PM CDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1140 AM FLASH FLOOD 1 ESE PLEASANT HILL 38.79N 94.24W
05/25/2012 CASS MO NWS EMPLOYEE

1 FOOT OF WATER FLOWING ACROSS COUNTRY CLUB DRIVE NEAR
ITS INTERSECTION WITH MURRAY ROAD.


&&

$$

SAW

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KVEF [251705]: Preliminary Local Storm Report

NWUS55 KVEF 251705
LSRVEF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1005 AM PDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0900 AM NON-TSTM WND GST 2 SE YUCCA FLAT (NTS SR 36.94N 116.04W
05/25/2012 M62.00 MPH NYE NV MESONET

DECON UNDERGROUND DISPOSAL MESONET SITE AT AN ELEVATION
OF 3916 FEET MEASURED A 62 MPH WIND GUST.


&&

$$

STACHELSKI

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KVEF [251651]: Preliminary Local Storm Report

NWUS55 KVEF 251651
LSRVEF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
951 AM PDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0915 AM NON-TSTM WND GST MERCURY (NTS A23) 36.66N 116.00W
05/25/2012 M65.00 MPH NYE NV MESONET

MERCURY A23 MESONET SITE MEASURED A 65 MPH WIND GUST AT
AN ELEVATION OF 3678 FEET.


&&

$$

STACHELSKI

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KARX [251639]: Preliminary Local Storm Report

NWUS53 KARX 251639
LSRARX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
1139 AM CDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0500 PM NON-TSTM WND DMG GREENWOOD 44.77N 90.60W
05/24/2012 CLARK WI LAW ENFORCEMENT

TREE ONTO POWER LINES.


&&

$$

DANB

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KARX [251636]: Preliminary Local Storm Report...summary

NWUS53 KARX 251636
LSRARX

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LA CROSSE WI
1135 AM CDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0315 PM NON-TSTM WND DMG 1 SW WILTON 43.80N 90.54W
05/24/2012 MONROE WI PUBLIC

CLUSTER OF MAPLE TREES DAMAGED/BLOWN DOWN

0324 PM HAIL 5 W MARBLE ROCK 42.96N 92.97W
05/24/2012 M0.50 INCH FLOYD IA FIRE DEPT/RESCUE

0400 PM TSTM WND DMG FOUNTAIN 43.74N 92.13W
05/24/2012 FILLMORE MN TRAINED SPOTTER

UTILITY POLES BLOWN DOWN ON MAIN STREET

0425 PM TSTM WND GST HARMONY 43.56N 92.01W
05/24/2012 M64.00 MPH FILLMORE MN FIRE DEPT/RESCUE

0426 PM TSTM WND DMG 2 W HARMONY 43.56N 92.05W
05/24/2012 FILLMORE MN EMERGENCY MNGR

TREES DOWN 2.5 MILES WEST OF HARMONY.

0438 PM TSTM WND GST 2 NE BRATSBERG 43.75N 91.74W
05/24/2012 E50.00 MPH FILLMORE MN PUBLIC

0448 PM TSTM WND DMG ARCADIA 44.25N 91.49W
05/24/2012 TREMPEALEAU WI TRAINED SPOTTER

SEVERAL TREES BLOWN DOWN

0450 PM TSTM WND GST HAWKEYE 42.94N 91.95W
05/24/2012 M53.00 MPH FAYETTE IA EMERGENCY MNGR

0454 PM TSTM WND DMG 2 NNW HAWKEYE 42.96N 91.97W
05/24/2012 FAYETTE IA TRAINED SPOTTER

MULTIPLE TREES DOWN ALONG HWY 18 AND A UTILITY POLE
SNAPPED ALONG W14 NORTH OF TOWN.

0458 PM TSTM WND GST HAWKEYE 42.94N 91.95W
05/24/2012 E65.00 MPH FAYETTE IA EMERGENCY MNGR

WIND DAMAGE TO POWER LINES...BUILDINGS AND TREES FROM
HAWKEYE AREA TO WEST UNION AND ST LUCAS

0500 PM TSTM WND DMG GOODVIEW 44.07N 91.71W
05/24/2012 WINONA MN 911 CALL CENTER

TREES DOWN IN GOODVIEW. POWER OUTAGE.

0503 PM TSTM WND GST PLEASANTVILLE 44.45N 91.30W
05/24/2012 E60.00 MPH TREMPEALEAU WI LAW ENFORCEMENT

MARBLE SIZED HAIL ALSO.

0505 PM TSTM WND DMG WINONA 44.05N 91.66W
05/24/2012 WINONA MN EMERGENCY MNGR

WIDESPREAD TREE DAMAGE IN WINONA.

0510 PM TSTM WND DMG 10 N THORP 45.10N 90.80W
05/24/2012 TAYLOR WI TRAINED SPOTTER

NUMEROUS TREES AND POWERLINES DOWN. ALONG COUNTY HIGHWAY
H AND MILLER AVENUE.

0510 PM HAIL 2 WSW GALESVILLE 44.07N 91.39W
05/24/2012 E0.75 INCH TREMPEALEAU WI NWS EMPLOYEE

0514 PM TSTM WND GST 2 N HIXTON 44.41N 91.01W
05/24/2012 M40.00 MPH JACKSON WI BROADCAST MEDIA

THE WEATHER CHANNEL TORNADO HUNT REPORTED 40 MPH OUTFLOW
WINDS. STRONGER WINDS WERE APPARENT TO THEIR NORTH...BUT
NO DAMAGE.

0515 PM HAIL 1 N HANNIBAL 45.26N 90.78W
05/24/2012 E1.00 INCH TAYLOR WI TRAINED SPOTTER

ALSO ESTIMATED WIND GUST OF 60 MPH

0517 PM TSTM WND GST 3 N OELWEIN 42.72N 91.91W
05/24/2012 E50.00 MPH FAYETTE IA TRAINED SPOTTER

0518 PM TSTM WND DMG FRANKVILLE 43.18N 91.64W
05/24/2012 WINNESHIEK IA TRAINED SPOTTER

A NUMBER OF TREES DOWN IN FRANKVILLE

0546 PM TSTM WND GST 5 N BLACK RIVER FALLS 44.37N 90.85W
05/24/2012 M45.00 MPH JACKSON WI BROADCAST MEDIA

REPORTED BY THE WEATHER CHANNEL TORNADO HUNT CREW

0610 PM TSTM WND DMG 2 S LYNN 44.55N 90.42W
05/24/2012 CLARK WI PUBLIC

TREE DOWN AT W366 STARR ROAD. APPROXIMATE TIME VIA RADAR.
SHERIFF REPORT RECEIVED FROM PUBLIC AT 743P.

0610 PM TSTM WND DMG 4 NE HATFIELD 44.46N 90.67W
05/24/2012 CLARK WI LAW ENFORCEMENT

TREE DOWN ACROSS RIVIERA AT HIGHWAY 95.

0613 PM TSTM WND GST 6 SSW ELKADER 42.78N 91.45W
05/24/2012 E45.00 MPH CLAYTON IA CO-OP OBSERVER

0615 PM TSTM WND DMG 4 W LONGWOOD 44.88N 90.68W
05/24/2012 CLARK WI LAW ENFORCEMENT

TREE DOWN ON ROAD AT RESEWOOD AVE AND COLBY FACTORY ROAD.
APPROXIMATE TIME VIA RADAR. SHERRIFF REPORT RECEIVED FROM
PUBLIC AT 641 PM.

0620 PM TSTM WND DMG 4 E LONGWOOD 44.88N 90.52W
05/24/2012 CLARK WI LAW ENFORCEMENT

TREE DOWN ON ROAD AT COUNTY P AND COUNTY N. APPROXIMATE
TIME VIA RADAR. SHERIFF REPORT RECEIVED FROM PUBLIC AT
651 PM.

0630 PM TSTM WND DMG 2 S DORCHESTER 44.97N 90.33W
05/24/2012 CLARK WI LAW ENFORCEMENT

TREE DOWN ON PINE ROAD AND HILINE ROAD. APPROXIMATE TIME
VIA RADAR. SHERIFF REPORT RECEIVED FROM PUBLIC AT 655 PM.



&&

$$

DANB

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 251632
SWODY1
SPC AC 251630

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1130 AM CDT FRI MAY 25 2012

VALID 251630Z - 261200Z

...THERE IS A SLGT RISK OF SVR TSTMS OVER PARTS OF NY AND NRN NEW
ENGLAND...

...THERE IS A SLGT RISK OF SVR TSTMS OVER THE PARTS OF THE OH
VALLEY...

...THERE IS A SLGT RISK OF SVR TSTMS OVER PORTIONS OF THE GREAT
PLAINS...

...NORTHEAST...
A VIGOROUS SHORT WAVE TROUGH ACROSS SRN ONTARIO IS FORECAST TO
CONTINUE TO LIFT RAPIDLY NEWD ACROSS JAMES BAY AND OVER QUEBEC
THROUGH THE DAY. COLD FRONT ASSOCIATED WITH THIS DISTURBANCE IS
CLEARLY EVIDENT IN SURFACE AND SATL DATA AND WILL CONTINUE TO SPREAD
EAST ACROSS LAKES ERIE AND ONTARIO...AND TO NRN NY LATER THIS
AFTERNOON/EARLY EVENING. THE FRONT WILL THEN SETTLE ACROSS NRN NEW
ENGLAND THROUGH TONIGHT. STRONGEST FORCING FOR ASCENT ALONG THE COLD
FRONT WILL EXIST NORTH OF THE BORDER IN QUEBEC WHERE SEVERE STORMS
APPEAR MORE LIKELY. WHILE LOW LEVEL CONVERGENCE AND LIFT ALONG THE
FRONT WITH SWD/SWWD EXTENT WILL BE WEAKER...LATEST GUIDANCE DEPICTS
AREAS OF WEAK TO MODEST DESTABILIZATION FROM NY ACROSS NRN VT BY
LATER TODAY. MLCAPE VALUES IN THESE AREAS SHOULD REACH THE 500-1000
J PER KG RANGE WHERE FORECAST SOUNDINGS FROM NAM AND WRF-ARW MODELS
DEPICT PRONOUNCED LOW LEVEL VERTICAL SHEAR. ANY STORMS THAT CAN
DEVELOP WILL EXIST IN AN ENVIRONMENT WITH SUFFICIENT VERTICAL SHEAR
FOR UPDRAFT PERSISTENCE AND ROTATION. GREATEST UNCERTAINTY EXISTS
WITH REGARD TO STORM COVERAGE GIVEN THE RAPID TRANSLATION OF THE
UPPER TROUGH AWAY FROM THE AXIS OF STRONGER POTENTIAL INSTABILITY
LATER TODAY. LATEST INDICATIONS CONTINUE TO SUPPORT THE DEVELOPMENT
OF AT MOST SCATTERED TSTMS ALONG THE FRONT DURING A RELATIVELY
NARROW WINDOW IN SPACE/TIME FROM LATE AFTERNOON INTO THE EVENING.
GIVEN INSTABILITY AND SHEAR FORECAST OVER UPSTATE NY INTO NRN VT...A
FEW ROTATING STORMS MAY EVOLVE IN THIS PERIOD AND POSE SOME THREAT
OF DAMAGING WINDS OR PERHAPS A TORNADO. SPC HAIL MODEL GUIDANCE
INDICATES ONLY ISOLATED HAIL PERHAPS TO AROUND 1 INCH IN DIAMETER.

...OH VALLEY...
FARTHER SW AHEAD OF THE COLD FRONT...SCATTERED LESS-ORGANIZED STORMS
APPEAR LIKELY AS A MOIST AND INCREASINGLY UNSTABLE AIRMASS FUELS
DEVELOPMENT FROM OH WWD ACROSS IND/IL. THE BULK OF THIS ACTIVITY
WILL OCCUR BENEATH WEAK MID LEVEL HEIGHT RISES AND ON THE SRN
PERIPHERY OF STRONGER MID LEVEL FLOW ACROSS THE GREAT LAKES.
MAGNITUDE OF INSTABILITY AND SUFFICIENT LIFT ALONG THE FRONT
SETTLING INTO THIS REGION SHOULD CONTRIBUTE TO NUMEROUS STORMS...A
FEW OF WHICH MAY BE CAPABLE OF SEVERE HAIL/WIND EVENTS THROUGH LATE
TODAY.

...WRN KS TO ERN TX PANHANDLE/WRN OK REGION...
ISOLATED TO WIDELY SCATTERED TSTMS ARE POSSIBLE ALONG DRYLINE DURING
21Z-00Z TIME FRAME...DURING PERIOD OF MOST INTENSE BOUNDARY-LAYER
WARMTH/MIXING. CONVECTION NEAR TRIPLE POINT AND ADJOINING
WARM-FRONTAL SEGMENT MAY PERSIST NOCTURNALLY...LEADING TO UPSCALE
GROWTH/MERGER WITH ELEVATED CONVECTION FARTHER NE OVER CENTRAL
PLAINS.

MOST FAVORABLE LOW-LEVEL HODOGRAPHS AND DEEP-SHEAR PROFILES FOR
SUPERCELLS WILL BE NEAR W-CENTRAL KS TRIPLE POINT...DECREASING BUT
REMAINING AT LEAST MRGLLY FAVORABLE WITH SWD EXTENT WRN OK. KS
JUXTAPOSITION OF BOUNDARIES WILL YIELD RELATIVELY MAXIMIZED
JUXTAPOSITION OF FAVORABLE SHEAR AND LOW-LEVEL CONVERGENCE.
ENHANCED LOW-LEVEL VORTICITY AND SRH ALSO WILL ACCOMPANY BACKED SFC
WINDS ALONG WARM FRONT...FOR ANY CONVECTION THAT CAN DEVELOP AT
TRIPLE POINT OR NEARBY DRYLINE SEGMENT AND MOVE DEVIANTLY RIGHTWARD
IN THAT PART OF WARM-FRONTAL ZONE WHERE CAPE REMAINS SFC-BASED. FCST
HODOGRAPHS SUGGEST SMALL AREA OF 200-400 J/KG 0-1 KM AGL SRH
ACCOMPANYING WARM FRONT...DECREASING SWD. THESE FACTORS SHOULD FOCUS
TORNADO POTENTIAL NEAR TRIPLE POINT AND WARM FRONT. LARGE HAIL ALSO
IS LIKELY WITH ANY SUPERCELLS.

SPECIFIC FOCI FOR CONVECTIVE INITIATION FARTHER S ACROSS WRN OK/ERN
TX PANHANDLE REGION ARE RATHER NEBULOUS. HOWEVER...SOME
CONVECTION-ALLOWING PROGS INDICATE DEVELOPMENT IN THIS REGION
BETWEEN 21Z-00Z. FCST SOUNDINGS SUGGEST SFC TEMPS 90S F AND DEW
POINTS 60S E OF DRYLINE WITH RESULTING MLCAPE 2000-3000 J/KG... AND
30-40 KT EFFECTIVE SHEAR MAGNITUDES. HODOGRAPHS ENLARGE AFTER DARK
AS CINH STRENGTHENS CONSIDERABLY...BUT WITH SOME OVERLAPPING TIME
WINDOW WHERE SFC PARCELS STILL ARE ACCESSIBLE WITH AID OF INTERNALLY
FORCED STORM DYNAMICS.

...NW TX TO RIO GRANDE...
VERTICAL SHEAR WILL WEAKEN OVER THIS REGION SWD FROM SWRN OK...WHILE
INITIATION POTENTIAL REMAINS VERY CONDITIONAL/ISOLATED IN NATURE.
ACTIVITY OVER THIS REGION GENERALLY SHOULD BE MORE PURELY DIURNALLY
DRIVEN AND SHORT-LIVED AS WELL...GIVEN PRESENCE OF VERY STG CAPPING
AND WARM 700-850 MB LAYER IN MORNING RAOBS THAT PERSISTS THROUGH
AFTERNOON. THEREFORE...UNCONDITIONAL SVR PROBABILITIES ARE KEPT AT
MRGL/5% LEVELS. HOWEVER...ANY TSTMS THAT DO FORM AWAY FROM EXISTING
CLOUD COVER WILL BE HIGH-BASED...ATOP INTENSELY HEATED/WELL-MIXED
BOUNDARY LAYER...AND CAPABLE OF STG-SVR DOWNBURSTS AND ISOLATED
LARGE HAIL. MOST PROBABLE AREA FOR DEVELOPMENT MAY BE OVER REGION
FROM PERMIAN BASIN SWD OVER LOWER PECOS/RIO GRANDE REGIONS. MOISTURE
CHANNEL IMAGERY INDICATES SUBTLE/MID-UPPER LEVEL
PERTURBATIONS MOVING NNEWD ACROSS BIG-BEND REGION AND OVER
CENTRAL/N-CENTRAL MEX NNE OF PAC HURRICANE BUD. EACH MAY ENHANCE
LARGE-SCALE ASCENT AND THERMODYNAMIC ENVIRONMENT ALOFT FOR
LATE-AFTERNOON TSTM POTENTIAL OVER THIS CORRIDOR.

...CNTRL PLAINS/MISSOURI VALLEY...
THE NOCTURNAL ENHANCEMENT TO THE LLJ WILL LIKELY GIVE RISE TO AN
INCREASE IN ELEVATED TSTMS ACROSS THE MID-MO VALLEY TONIGHT WHERE
THE PRESENCE OF MODERATE-STRONG INSTABILITY WILL PROMOTE EMBEDDED
SUPERCELLS CAPABLE OF MAINLY LARGE HAIL.

...FL...
SCATTERED STRONG TO ISOLATED SEVERE STORMS WITH WINDS AND PERHAPS
SOME HAIL APPEAR LIKELY ACROSS PARTS OF S FL LATER THIS AFTERNOON.
FLOW REGIME SHOULD CONTRIBUTE TO SWD/SWWD MOVING MULTICELL STORMS
OCCASIONALLY STRENGTHENING NEAR BOUNDARY INTERSECTIONS AND/OR CELL
MERGERS.

..CARBIN/EDWARDS/PETERS.. 05/25/2012

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KMFR [251550]: Preliminary Local Storm Report

NWUS56 KMFR 251550
LSRMFR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
849 AM PDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0847 AM HEAVY SNOW 10 SSE SPRAGUE RIVER 42.32N 121.44W
05/25/2012 M3.0 INCH KLAMATH OR TRAINED SPOTTER

STORM TOTAL SNOWFALL AS OF 7 AM.


&&

$$

WRIGHT

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KSLC [251540]: Preliminary Local Storm Report

NWUS55 KSLC 251540
LSRSLC

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
940 AM MDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0908 AM NON-TSTM WND GST 3 E MONROE 38.63N 112.06W
05/25/2012 M63.00 MPH SEVIER UT MESONET

SIGNAL PEAK RAWS

0930 AM NON-TSTM WND GST 1 W SUNDANCE 40.37N 111.59W
05/25/2012 M62.00 MPH UTAH UT MESONET

ARROWHEAD SUMMIT SENSOR


&&

$$

CRK

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KARX [251533]: Preliminary Local Storm Report

NWUS53 KARX 251533
LSRARX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
1032 AM CDT FRI MAY 25 2012

...TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
...DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0528 PM TSTM WND DMG 3 ENE FRANKLIN 44.24N 91.06W
05/24/2012 JACKSON WI PUBLIC

TREE DOWN ON ROAD AT COUNTY C AND HAMMOND
ROAD. REPORT RECEIVED BY SHERIFF.

&&

$$

BAUMGARDT

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KEAX [251531]: Preliminary Local Storm Report

NWUS53 KEAX 251531
LSREAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1031 AM CDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1000 AM HEAVY RAIN PLEASANT HILL 38.79N 94.27W
05/25/2012 M3.57 INCH CASS MO NWS EMPLOYEE

STORM TOTAL BETWEEN 8 PM AND 10 AM.


&&

$$

BOOKBINDER

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KMSO [251530]: Preliminary Local Storm Report

NWUS55 KMSO 251530
LSRMSO

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
930 AM MDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0900 AM SNOW 2 SW NEWCOMB 45.90N 112.55W
05/25/2012 M3.3 INCH SILVER BOW MT TRAINED SPOTTER

3.3 INCHES OF SNOW FELL OVER NIGHT 8 MILES SOUTH OF BUTTE
AT AN ELEVATION OF 6200 FEET


&&

$$

LBR

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KEAX [251522]: Preliminary Local Storm Report

NWUS53 KEAX 251522
LSREAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1022 AM CDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1000 AM HEAVY RAIN GREENWOOD 38.85N 94.34W
05/25/2012 M5.60 INCH JACKSON MO NWS EMPLOYEE

MEASURED BY RETIRED NWS EMPLOYEE. STORM TOTAL SINCE 8 PM.
4.80 INCHES SINCE 6 AM.


&&

$$

BOOKBINDER

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KEAX [251518]: Preliminary Local Storm Report

NWUS53 KEAX 251518
LSREAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1018 AM CDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1016 AM HEAVY RAIN 2 N PLEASANT HILL 38.82N 94.27W
05/25/2012 M4.80 INCH CASS MO OFFICIAL NWS OBS

STORM TOTAL SINCE 8 PM. 3.50 INCHES SINCE 7 AM ENDING AT
10 AM.


&&

$$

BOOKBINDER

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KDLH [251514]: Preliminary Local Storm Report...summary

NWUS53 KDLH 251514
LSRDLH

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DULUTH MN
1014 AM CDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0241 PM HAIL 2 SE WINTER 45.80N 90.98W
05/24/2012 M0.50 INCH SAWYER WI CO-OP OBSERVER

0350 PM HEAVY RAIN 2 SW HINCKLEY 45.99N 92.97W
05/24/2012 M4.00 INCH PINE MN TRAINED SPOTTER

STORM TOTAL THUS FAR.

0449 PM HEAVY RAIN SHELL LAKE 45.74N 91.90W
05/24/2012 M3.50 INCH WASHBURN WI TRAINED SPOTTER

STORM TOTAL THUS FAR

0450 PM HEAVY RAIN 4 N GRANTSBURG 45.84N 92.68W
05/24/2012 M3.60 INCH BURNETT WI TRAINED SPOTTER

SINCE 9 PM LAST NIGHT

0512 PM HEAVY RAIN 3 NW SANDSTONE 46.16N 92.91W
05/24/2012 M3.00 INCH PINE MN TRAINED SPOTTER

MEASURED BETWEEN SANDSTONE AND FINLAYSON.

0533 PM HEAVY RAIN TRADE LAKE 45.69N 92.59W
05/24/2012 M3.00 INCH BURNETT WI TRAINED SPOTTER

TWO DAY TOTAL.

0545 PM TSTM WND DMG 3 W PRENTICE 45.54N 90.35W
05/24/2012 PRICE WI TRAINED SPOTTER

TWO 10 INCH DIAMETER TREES DOWN ON HIGHWAY 8

0600 PM HEAVY RAIN 4 S BRUNO 46.22N 92.67W
05/24/2012 M3.59 INCH PINE MN TRAINED SPOTTER

STORM TOTAL

0605 PM HEAVY RAIN WEBSTER 45.88N 92.36W
05/24/2012 M2.95 INCH BURNETT WI TRAINED SPOTTER

TWO DAY TOTAL - OAKLAND TOWNSHIP

0730 PM FLOOD TACONITE HARBOR 47.52N 90.92W
05/24/2012 COOK MN LAW ENFORCEMENT

WATER OVER ROAD ON HIGHWAY 61

0730 PM FLOOD 2 NE SOUTH RANGE 46.62N 91.95W
05/24/2012 DOUGLAS WI LAW ENFORCEMENT

ROAD WASHED OUT AT COUNTY ROAD UU AND PAPANO ROAD

0730 PM HEAVY RAIN 1 S SOLON SPRINGS 46.33N 91.82W
05/24/2012 M3.35 INCH DOUGLAS WI TRAINED SPOTTER

0757 PM HEAVY RAIN WRENSHALL 46.62N 92.38W
05/24/2012 M2.70 INCH CARLTON MN MESONET

WLSSD SITE. UPDATED TWO DAY TOTAL. STILL RAINING.

0800 PM HEAVY RAIN SCANLON 46.71N 92.43W
05/24/2012 M3.49 INCH CARLTON MN MESONET

WLSSD SITE. TWO DAY TOTAL AS OF 700 PM. STILL RAINING.

0801 PM HEAVY RAIN PROCTOR 46.74N 92.23W
05/24/2012 M3.17 INCH ST. LOUIS MN TRAINED SPOTTER

TWO DAY TOTAL

0801 PM HEAVY RAIN DULUTH 46.78N 92.12W
05/24/2012 M3.04 INCH ST. LOUIS MN MESONET

WLSSD PLANT IN WEST DULUTH. UPDATED TWO DAY TOTAL. STILL
RAINING.

0825 PM HEAVY RAIN 2 W GRAND MARAIS 47.76N 90.39W
05/24/2012 M3.50 INCH COOK MN TRAINED SPOTTER

2 DAY TOTAL

0825 PM HEAVY RAIN 7 NW TWO HARBORS 47.10N 91.78W
05/24/2012 M3.48 INCH LAKE MN TRAINED SPOTTER

2 DAY TOTAL

0830 PM HEAVY RAIN 1 WNW ASHLAND 46.59N 90.89W
05/24/2012 M2.23 INCH ASHLAND WI COCORAHS

MEASURED IN THE PAST 11 HOURS

0908 PM HEAVY RAIN HIBBING 47.40N 92.95W
05/24/2012 M2.13 INCH ST. LOUIS MN ASOS

2 DAY TOTAL

0909 PM HEAVY RAIN ASHLAND 46.58N 90.87W
05/24/2012 M2.66 INCH ASHLAND WI ASOS

2 DAY TOTAL

0915 PM HEAVY RAIN ISABELLA 47.62N 91.36W
05/24/2012 M3.30 INCH LAKE MN MESONET

RAWS SITE 2 DAY TOTAL

0915 PM HEAVY RAIN 8 NE EAGLE MOUNTAIN 47.98N 90.44W
05/24/2012 M3.79 INCH COOK MN MESONET

SUPERIOR 1 RAWS STATION 2 DAY TOTAL

0923 PM HEAVY RAIN ELY 47.91N 91.85W
05/24/2012 M2.69 INCH ST. LOUIS MN MESONET

ELY RAWS STATION 2 DAY TOTAL

0942 PM HEAVY RAIN RICE LAKE 46.51N 93.37W
05/24/2012 M1.39 INCH AITKIN MN MESONET

RAWS STATION 2 DAY TOTAL

0944 PM HEAVY RAIN HILL CITY 46.99N 93.60W
05/24/2012 M2.00 INCH AITKIN MN MESONET

RAWS STATION 2 DAY TOTAL

0945 PM HEAVY RAIN WASHBURN 46.67N 90.89W
05/24/2012 M3.11 INCH BAYFIELD WI MESONET

RAWS STATION 2 DAY TOTAL

0945 PM HEAVY RAIN STOCKTON ISLAND 46.94N 90.58W
05/24/2012 M2.55 INCH ASHLAND WI MESONET

RAWS STATION 2 DAY TOTAL

0945 PM HEAVY RAIN 10 SW GRANTSBURG 45.68N 92.83W
05/24/2012 M3.46 INCH BURNETT WI MESONET

LIND RAWS SITE 2 DAY TOTAL

1000 PM HEAVY RAIN HAYWARD 46.01N 91.48W
05/24/2012 M2.67 INCH SAWYER WI MESONET

RAWS STATION 2 DAY TOTAL

1001 PM HEAVY RAIN LITTLEFORK 48.40N 93.56W
05/24/2012 M0.96 INCH KOOCHICHING MN MESONET

RAWS STATION 2 DAY TOTAL

1001 PM HEAVY RAIN CASS LAKE 47.40N 94.54W
05/24/2012 M0.58 INCH CASS MN MESONET

RAWS STATION 2 DAY TOTAL

1001 PM HEAVY RAIN BRAINERD 46.35N 94.19W
05/24/2012 M1.85 INCH CROW WING MN MESONET

RAWS STATION 2 DAY TOTAL

1001 PM HEAVY RAIN MOOSE LAKE 46.45N 92.77W
05/24/2012 M2.50 INCH CARLTON MN MESONET

RAWS STATION 2 DAY TOTAL

0555 AM HEAVY RAIN MAPLE 46.59N 91.72W
05/25/2012 M2.29 INCH DOUGLAS WI TRAINED SPOTTER

24 HOUR TOTAL.

0710 AM HEAVY RAIN SILVER BAY 47.29N 91.28W
05/25/2012 M2.06 INCH LAKE MN CO-OP OBSERVER

24 HOUR TOTAL.

0711 AM HEAVY RAIN FINLAND 47.41N 91.25W
05/25/2012 M2.36 INCH LAKE MN CO-OP OBSERVER

0813 AM HEAVY RAIN 1 E FLOODWOOD 46.93N 92.89W
05/25/2012 M2.40 INCH ST. LOUIS MN TRAINED SPOTTER

0835 AM HEAVY RAIN 5 NW TWO HARBORS 47.08N 91.75W
05/25/2012 M3.80 INCH LAKE MN TRAINED SPOTTER

0945 AM HEAVY RAIN 9 SSE BRULE 46.43N 91.51W
05/25/2012 M2.59 INCH BAYFIELD WI TRAINED SPOTTER


&&

$$

RS

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KDLH [251513]: Preliminary Local Storm Report

NWUS53 KDLH 251513
LSRDLH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
1013 AM CDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0813 AM HEAVY RAIN 1 E FLOODWOOD 46.93N 92.89W
05/25/2012 M2.40 INCH ST. LOUIS MN TRAINED SPOTTER

0835 AM HEAVY RAIN 5 NW TWO HARBORS 47.08N 91.75W
05/25/2012 M3.80 INCH LAKE MN TRAINED SPOTTER

0945 AM HEAVY RAIN 9 SSE BRULE 46.43N 91.51W
05/25/2012 M2.59 INCH BAYFIELD WI TRAINED SPOTTER


&&

$$

RS

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KMFR [251454]: Preliminary Local Storm Report

NWUS56 KMFR 251454
LSRMFR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
754 AM PDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0741 AM SNOW 28 NNE ADEL 42.55N 119.66W
05/25/2012 M6.0 INCH LAKE OR PUBLIC

24 HOUR ACCUMULATION


&&

$$

BUNKER

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KTFX [251452]: Preliminary Local Storm Report

NWUS55 KTFX 251452
LSRTFX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
852 AM MDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0700 AM SNOW 14 NE BELGRADE 45.89N 110.94W
05/25/2012 E4.0 INCH GALLATIN MT MESONET

ESTIMATED 4 INCHES OF NEW SNOW AT THE BRACKET CREEK
SNOTEL. ELEVATION IS 7320 FEET.


&&

$$

BRUSDA

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KMFR [251449]: Preliminary Local Storm Report

NWUS56 KMFR 251449
LSRMFR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
749 AM PDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0741 AM SNOW N TENNANT 41.59N 121.91W
05/25/2012 M1.5 INCH SISKIYOU CA TRAINED SPOTTER

OVERNIGHT ACCUMULATION


&&

$$

BUNKER

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KTFX [251449]: Preliminary Local Storm Report

NWUS55 KTFX 251449
LSRTFX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
849 AM MDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0700 AM SNOW 6 N BASIN 46.36N 112.26W
05/25/2012 E3.0 INCH JEFFERSON MT MESONET

ESTIMATED 3 INCHES OF NEW SNOW IN THE PAST 24 HOURS AT
THE ROCKER PEAK SNOTEL. ELEVATION IS 8000 FEET.


&&

$$

BRUSDA

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KTFX [251445]: Preliminary Local Storm Report

NWUS55 KTFX 251445
LSRTFX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
844 AM MDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0700 AM SNOW 14 NNE LAKEVIEW 44.79N 111.71W
05/25/2012 E4.0 INCH MADISON MT MESONET

ESTIMATED 4 INCHES OF NEW SNOW IN THE PAST 24 HOURS AT
THE TEPEE CREEK SNOTEL. ELEVATION IS 8000 FEET.


&&

$$

BRUSDA

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KMFR [251441]: Preliminary Local Storm Report

NWUS56 KMFR 251441
LSRMFR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
741 AM PDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0741 AM SNOW WSW SILVER LAKE 43.13N 121.05W
05/25/2012 M1.5 INCH LAKE OR TRAINED SPOTTER

24 HOUR ACCUMULATION


&&

$$

BUNKER

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KTFX [251437]: Preliminary Local Storm Report

NWUS55 KTFX 251437
LSRTFX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
837 AM MDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0700 AM SNOW 9 NNW LINCOLN 47.08N 112.73W
05/25/2012 E3.0 INCH LEWIS AND CLARK MT MESONET

ESTIMATED 3 INCHES OF NEW SNOW IN THE PAST 24 HOURS AT
THE COPPER CAMP SNOTEL. ELEVATION IS 6950 FEET.


&&

$$

BRUSDA

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KTFX [251435]: Preliminary Local Storm Report

NWUS55 KTFX 251435
LSRTFX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
835 AM MDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0700 AM SNOW 24 W BYNUM 47.92N 112.82W
05/25/2012 E2.0 INCH TETON MT MESONET

ESTIMATED 2 INCHES OF NEW SNOW IN THE PAST 24 HOURS AT
THE MOUNT LOCKHART SNOTEL. ELEVTION IS 6400 FEET.


&&

$$

BRUSDA

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KTFX [251433]: Preliminary Local Storm Report

NWUS55 KTFX 251433
LSRTFX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
833 AM MDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0700 AM SNOW 14 SW HEART BUTTE 48.13N 113.02W
05/25/2012 E5.0 INCH PONDERA MT MESONET

ESTIMATED 5 INCHES OF NEW SNOW IN THE PAST 24 HOURS AT
THE BADGER PASS SNOTEL SITE. ELEVATION IS 6900 FEET.


&&

$$

BRUSDA

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KTFX [251427]: Preliminary Local Storm Report

NWUS55 KTFX 251427
LSRTFX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
827 AM MDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0700 AM SNOW 5 SW PONY 45.60N 111.96W
05/25/2012 E6.0 INCH MADISON MT MESONET

ESTIMATED 6 INCHES OF NEW SNOW IN THE PAST 24 HOURS AT
ALBRO LAKE SNOTEL. ELEVATION IS 8300 FEET.


&&

$$

BRUSDA

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KEAX [251423]: Preliminary Local Storm Report

NWUS53 KEAX 251423
LSREAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
922 AM CDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0920 AM FLASH FLOOD LEES SUMMIT 38.92N 94.38W
05/25/2012 JACKSON MO LAW ENFORCEMENT

HIGHWAY 150 AT HARBOR DRIVE AND HIGHWAY 150 AT HIGHWAY
291 CLOSING DUE TO FLOODING ON ROADS.


&&

$$

CBOWMAN

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KMFR [251414]: Preliminary Local Storm Report

NWUS56 KMFR 251414
LSRMFR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
714 AM PDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0713 AM SNOW 5 N KENO 42.20N 121.92W
05/25/2012 M1.2 INCH KLAMATH OR TRAINED SPOTTER

24 HOUR ACCUMULATION


&&

$$

BUNKER

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KGRB [251337]: Preliminary Local Storm Report...summary

NWUS53 KGRB 251337
LSRGRB

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE GREEN BAY WI
837 AM CDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0220 PM NON-TSTM WND GST COLBY 44.91N 90.30W
05/24/2012 M47.00 MPH MARATHON WI TRAINED SPOTTER

0354 PM NON-TSTM WND GST WAUSAU 44.96N 89.63W
05/24/2012 M50.00 MPH MARATHON WI ASOS

0555 PM NON-TSTM WND GST 1 NE READFIELD 44.27N 88.74W
05/24/2012 M52.00 MPH WAUPACA WI PUBLIC

TIME APPROX. REPORT RELAYED BY WFRV-TV.

0615 PM TSTM WND GST 1 NE SPENCER 44.77N 90.27W
05/24/2012 E60.00 MPH MARATHON WI TRAINED SPOTTER

HEAVY RAINFALL AND SMALL HAIL ALSO REPORTED.

0622 PM TSTM WND DMG LAC DU FLAMBEAU 45.96N 89.88W
05/24/2012 VILAS WI PUBLIC

SEVERAL TREES DOWN.

0645 PM TSTM WND DMG PRESQUE ISLE 46.25N 89.73W
05/24/2012 VILAS WI BROADCAST MEDIA

TREES DOWN ON THE EAST SIDE OF PRESQUE ISLE. TIME
ESTIMATED FROM RADAR. REPORT RELAYED BY WJFW.

0645 PM TSTM WND DMG STRATFORD 44.79N 90.08W
05/24/2012 MARATHON WI AMATEUR RADIO

12 INCH DIAMETER TREES DOWN

0648 PM TSTM WND DMG 2 WNW HALDER 44.80N 89.89W
05/24/2012 MARATHON WI PUBLIC

TREES AND BRANCHES BLOWN DOWN NEAR STRATFORD

0707 PM TORNADO RIB MOUNTAIN 44.91N 89.68W
05/24/2012 MARATHON WI LAW ENFORCEMENT

CONFIRMED TORNADO BY LAW ENFORCEMENT.

0805 PM TSTM WND DMG PLOVER 44.45N 89.53W
05/24/2012 PORTAGE WI LAW ENFORCEMENT

SEVERAL TREES DOWN-RELAYED FROM PORTAGE SHERRIF DEPT.

0835 PM TSTM WND GST 3 W MARION 44.66N 88.95W
05/24/2012 E60.00 MPH WAUPACA WI AMATEUR RADIO


&&

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SAC

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 251253
SWODY1
SPC AC 251251

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0751 AM CDT FRI MAY 25 2012

VALID 251300Z - 261200Z

...THERE IS A SLGT RISK OF SVR TSTMS THIS AFTERNOON INTO TONIGHT
FROM THE MID-MO VALLEY SWD INTO THE SRN PLAINS...

...THERE IS A SLGT RISK OF SVR TSTMS THIS AFTERNOON INTO EVENING
ACROSS PARTS OF THE LOWER GREAT LAKES...

...SYNOPSIS...

LARGE-SCALE PATTERN WILL UNDERGO AMPLIFICATION THIS PERIOD OWING TO
THE SEWD DEVELOPMENT OF UPPER TROUGH THROUGH THE GREAT BASIN INTO
LOWER CO VALLEY...AND SUBSEQUENT NWD/NEWD EXPANSION OF SUBTROPICAL
RIDGE INTO MID-MS AND OH VALLEYS. WITHIN THIS BROADER-SCALE
PATTERN...SHORT-WAVE TROUGH OVER THE UPPER GREAT LAKES INTO WRN
ONTARIO WILL DE-AMPLIFY WHILE TRANSLATING ENEWD INTO QUEBEC.

AT THE SURFACE...COLD FRONT ATTENDANT TO THE GREAT LAKES SHORT-WAVE
TROUGH WILL ADVANCE EWD TO THE LEE OF LAKE ERIE/ONTARIO BY LATE
AFTERNOON/EARLY EVENING WITH THE BOUNDARY TRAILING WSWWD INTO THE
CNTRL PLAINS WHERE IT WILL BE LIFTING NWD AS A WARM FRONT. A
DRYLINE WILL EXTEND FROM THE WARM FRONT OVER WRN KS SWD TO ALONG THE
TX/OK BORDER AND INTO THE PECOS RIVER VALLEY DURING THE PEAK OF THE
DIURNAL HEATING CYCLE.

...MID-MO VALLEY INTO THE SRN PLAINS...

SURFACE-BASED TSTM DEVELOPMENT REMAINS UNCERTAIN ALONG THE WARM
FRONT AND DRYLINE THIS AFTERNOON/EVENING OWING TO THE RISING
MIDLEVEL HEIGHTS DOWNSTREAM FROM WRN U.S. TROUGH. HOWEVER...SOME
MESOSCALE AND CONVECTION-ALLOWING MODEL GUIDANCE DOES SUGGEST THAT
STRONG DIABATIC WARMING WITHIN AIR MASS W OF DRYLINE FROM SWRN KS
INTO W-CNTRL TX MAY BE SUFFICIENT TO INITIATE ISOLATED TSTMS BY LATE
AFTERNOON/EARLY EVENING. AS SUCH...HIGHER SEVERE PROBABILITIES AND
A CATEGORICAL SLIGHT RISK HAVE BEEN EXTENDED SWD INTO THE ERN TX
PNHDL/WRN OK.

12Z OBSERVED SOUNDINGS WITHIN THE WARM SECTOR INDICATE THE POTENTIAL
FOR STRONG AIR MASS DESTABILIZATION TODAY /MLCAPE OF 2000-4000 J PER
KG/ OWING TO THE COLLOCATION OF A MOIST BOUNDARY LAYER WITH STEEP
MIDLEVEL LAPSE RATES ATTENDANT TO EML. THE STRONGEST DEEP-LAYER
SHEAR /50-60 KT/ WILL RESIDE ACROSS WARM FRONT WITH A GENERAL
DECREASE WITH SWD EXTENT ALONG DRYLINE. IN AREAS WHERE THE VERTICAL
SHEAR IS WEAKER...THE STRONG INSTABILITY WILL COMPENSATE WITH
SUPERCELLS LIKELY ANYWHERE SURFACE-BASED STORMS CAN INITIATE AND
BECOME SUSTAINED. LARGE HAIL WILL BE THE PRIMARY HAZARD...THOUGH
THE THREAT FOR TORNADOES WILL INCREASE THIS EVENING ACROSS NRN
EXTENSION OF DRYLINE AND WARM FRONT WHERE LOW-LEVEL SHEAR IS
ENHANCED.

THE NOCTURNAL ENHANCEMENT TO THE LLJ WILL LIKELY GIVE RISE TO AN
INCREASE IN ELEVATED TSTMS ACROSS THE MID-MO VALLEY TONIGHT WHERE
THE PRESENCE OF MODERATE-STRONG INSTABILITY WILL PROMOTE EMBEDDED
SUPERCELLS CAPABLE OF MAINLY LARGE HAIL.

...MO THIS MORNING...

A CLUSTER OF ELEVATED TSTMS IS ONGOING THIS MORNING INVOF OF MKC
WITHIN A ZONE OF WEAK LOW-LEVEL WAA N OF SURFACE FRONT. 12Z SGF
SOUNDING SUGGESTS THAT ENVIRONMENT IS MODERATELY UNSTABLE FOR
PARCELS ORIGINATING ABOVE STABLE SURFACE LAYER WITH MUCAPE OF
2000-2500 J/KG. ISOLATED OCCURRENCES OF MARGINALLY SEVERE HAIL ARE
POSSIBLE THIS MORNING BEFORE STORMS GRADUALLY WEAKEN LATER TODAY.

...LOWER GREAT LAKES...

STRONG FORCING FOR ASCENT/HEIGHT FALLS ATTENDANT TO DE-AMPLIFYING
SHORT-WAVE TROUGH WILL REMAIN N OF REGION TODAY WITH CONVERGENCE
ALONG THE COLD FRONT AND/OR DEVELOPING LAKE BREEZE CIRCULATION
SERVING AS THE FOCUS FOR DIURNAL STORM INITIATION. DAYTIME HEATING
COUPLED WITH DEWPOINTS IN THE LOWER 60S WILL CONTRIBUTE TO A
MODERATELY UNSTABLE AIR MASS BY AFTERNOON WITH MLCAPE VALUES
APPROACHING 1000-2000 J/KG. THIS INSTABILITY WILL COINCIDE WITH A
GRADUALLY STRENGTHENING DEEP-LAYER WIND FIELD ALONG SRN PERIPHERY OF
SHORT-WAVE TROUGH WITH ENVIRONMENT BECOMING SUPPORTIVE OF
ORGANIZED/ROTATING STORMS CAPABLE OF DAMAGING WINDS...LARGE HAIL AND
PERHAPS A TORNADO.

..MEAD/ROGERS.. 05/25/2012

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KDLH [251247]: Preliminary Local Storm Report

NWUS53 KDLH 251247
LSRDLH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
746 AM CDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0555 AM HEAVY RAIN MAPLE 46.59N 91.72W
05/25/2012 M2.29 INCH DOUGLAS WI TRAINED SPOTTER

24 HOUR TOTAL.

0710 AM HEAVY RAIN SILVER BAY 47.29N 91.28W
05/25/2012 M2.06 INCH LAKE MN CO-OP OBSERVER

24 HOUR TOTAL.

0711 AM HEAVY RAIN FINLAND 47.41N 91.25W
05/25/2012 M2.36 INCH LAKE MN CO-OP OBSERVER


&&

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RS

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KEAX [251121]: Preliminary Local Storm Report

NWUS53 KEAX 251121
LSREAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
621 AM CDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0555 AM HAIL 5 ESE OLATHE 38.85N 94.74W
05/25/2012 E0.75 INCH JOHNSON KS PUBLIC


&&

$$

SAW

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KEAX [251115]: Preliminary Local Storm Report

NWUS53 KEAX 251115
LSREAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
615 AM CDT FRI MAY 25 2012

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0608 AM HAIL 1 ESE STANLEY 38.84N 94.63W
05/25/2012 M1.00 INCH JOHNSON KS PUBLIC


&&

$$

SAW

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DAY48SVR: Nws Storm Prediction Center Norman Ok

ACUS48 KWNS 250856
SWOD48
SPC AC 250855

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0355 AM CDT FRI MAY 25 2012

VALID 281200Z - 021200Z

...DISCUSSION...
THE MEDIUM RANGE MODELS BEGIN THE DAY 4 TO 8 PERIOD IN GOOD
AGREEMENT WITH AN UPPER-LEVEL TROUGH EXTENDING SWD THROUGH THE NRN
AND CNTRL PLAINS ON MONDAY/DAY 4. BY LATE MONDAY AFTERNOON...A COLD
FRONT IS FORECAST TO BE LOCATED FROM THE WRN GREAT LAKES SSWWD INTO
THE MID-MO VALLEY. THUNDERSTORM DEVELOPMENT WILL BE POSSIBLE ALONG
THIS BOUNDARY MONDAY AFTERNOON AND EVENING. GFS FORECAST SOUNDINGS
MONDAY EVENING FROM AROUND SPRINGFIELD MO NNEWD TO AROUND DAVENPORT
IA SHOW MODERATE TO STRONG INSTABILITY WITH AMPLE DEEP LAYER SHEAR
FOR SEVERE STORMS. WILL MAINTAIN AN ENHANCED SEVERE THREAT AREA
ALONG THIS CORRIDOR ON DAY 4. FOR TUESDAY/DAY 5...THE MODELS MOVE
THE UPPER-LEVEL TROUGH INTO THE GREAT LAKES REGION WITH THE COLD
FRONT ADVANCING QUICKLY SEWD ACROSS THE MID-MS VALLEY. AS THE FRONT
MOVES AWAY FROM THE STRONGER FORCING...THUNDERSTORM DEVELOPMENT
SHOULD BE MORE ISOLATED. THE GREATEST CONVECTIVE COVERAGE SHOULD
EXIST NEWD INTO THE CNTRL AND NRN APPALACHIAN MTNS WHERE STRONG
THUNDERSTORM ACTIVITY COULD OCCUR. A SEVERE THREAT MAY ALSO EXIST IN
THE SRN PLAINS AS MOISTURE RETURNS NWD DURING THE DAY. UNCERTAINTY
IS TOO GREAT TOO WARRANT A SEVERE THREAT AREA ON TUESDAY. ON
WEDNESDAY/DAY 6...BOTH THE GFS AND ECMWF BRING A SHORT-WAVE TROUGH
ESEWD ACROSS THE SRN PLAINS SUGGESTING A CONCENTRATED AREA OF SEVERE
THUNDERSTORM DEVELOPMENT WILL BE POSSIBLE ALONG AN AXIS OF STRONG
INSTABILITY WEDNESDAY AFTERNOON AND EVENING. HOWEVER...UNCERTAINTY
EXISTS CONCERNING THE TIMING AND AMPLITUDE OF THE SHORTWAVE TROUGH
AND WILL NOT INTRODUCE AN ENHANCED SEVERE THREAT AREA FOR WEDNESDAY.
BEYOND DAY 6...THE MODELS AMPLIFY AND MOVE THE SHORTWAVE TROUGH EWD
INTO THE MID-MS VALLEY. THUNDERSTORMS WILL AGAIN BE POSSIBLE AHEAD
OF THE SYSTEM BUT CONFIDENCE IS NOT VERY HIGH CONCERNING THIS LATE
IN THE PERIOD.

..BROYLES.. 05/25/2012

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