KPIH [250345]: Preliminary Local Storm Report

NWUS55 KPIH 250345
LSRPIH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO
944 PM MDT MON AUG 24 2009

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

0630 PM HAIL 4 NNE HOLBROOK 42.22N 112.63W
08/24/2009 E0.50 INCH ONEIDA ID TRAINED SPOTTER

RURAL FLOODING. WATER WASHED OUT OF THREE NORMALLY DRY
GULLIES ACROSS THE ROAD. THE LARGEST WAS 12FT WIDE AND 14
INCHES DEEP. THE OTHER TWO WERE 1.5FT WIDE. THE ROAD
SUSTAINED NO DAMAGE DURING THE EVENT.

&&

$$

MH

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KGLD [250339]: Preliminary Local Storm Report...summary

NWUS53 KGLD 250339
LSRGLD

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE GOODLAND KS
939 PM MDT MON AUG 24 2009

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

0405 PM HAIL 7 S STRATTON 39.21N 102.61W
08/24/2009 E1.00 INCH KIT CARSON CO PUBLIC

PUBLIC ALSO REPORTS STRONG WINDS WHICH SNAPPED A 4-5 INCH
LIVE TREE BRANCH.

0415 PM HAIL 4 SSE STRATTON 39.24N 102.58W
08/24/2009 E1.75 INCH KIT CARSON CO PUBLIC

0439 PM HAIL 1 N BETHUNE 39.32N 102.42W
08/24/2009 E0.75 INCH KIT CARSON CO TRAINED SPOTTER

ALSO MEASURED PEAK WIND GUST OF 49 MPH

0450 PM HAIL 2 N BETHUNE 39.33N 102.42W
08/24/2009 E0.75 INCH KIT CARSON CO TRAINED SPOTTER

SPOTTER REPORTS PLENTY OF HAIL..INCLUDING SOME DRIFTS.
ALSO REPORTS MEASURED WIND GUST OF 50MPH.

0450 PM TSTM WND DMG 5 NE BETHUNE 39.36N 102.35W
08/24/2009 KIT CARSON CO PUBLIC

PUBLIC REPORT OF TWO SHEDS BLOWN OVER BY STRONG
WINDS..ONE OF THE SHEDS IS OF STEEL CONSTRUCTION.

0700 PM TSTM WND DMG BREWSTER 39.36N 101.38W
08/24/2009 THOMAS KS EMERGENCY MNGR

TREE ON A HOUSE AND POWER LINES DOWN

&&

$$

024

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MESO: Mesoscale Discussion 1966

ACUS11 KWNS 250323
SWOMCD
SPC MCD 250323
NEZ000-250500-

MESOSCALE DISCUSSION 1966
NWS STORM PREDICTION CENTER NORMAN OK
1023 PM CDT MON AUG 24 2009

AREAS AFFECTED...PARTS OF S CNTRL THRU NE NEB

CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY

VALID 250323Z - 250500Z

VIGOROUS CONVECTIVE DEVELOPMENT...ONGOING TO THE NORTHEAST OF BROKEN
BOW...NEAR ORD...AND ON NORTHEASTWARD INTO THE NORFOLK
VICINITY...APPEARS TO BE OCCURRING WHERE LIFT ASSOCIATED WITH
LOWER/MID TROPOSPHERIC WARM ADVECTION IS MAXIMIZED ON THE NOSE OF A
30-40 KT SOUTHERLY 850 MB JET. WHILE LIGHT SOUTHWESTERLY DEEP LAYER
MEAN FLOW IS SUPPORTING THE NORTHEASTWARD ADVECTION OF
STORMS...PROFILES HAVE BEEN FAVORING THE TENDENCY FOR REGENERATION
OF STRONG NEW STORMS NEAR AND TO THE SOUTHWEST OF ORD. THIS
TENDENCY IS EXPECTED TO CONTINUE AT LEAST THROUGH 05-06Z...BEFORE
VIGOROUS UPSTREAM STORMS ON THE LEADING EDGE OF A STRONG
CONVECTIVELY GENERATED COLD POOL...SUPPORTED BY FORCING ASSOCIATED
WITH AN UPPER IMPULSE...ADVANCE INTO THE REGION. THEREAFTER...
UPSCALE GROWTH INTO GENERALLY ONE EXPANDING STORM CLUSTER APPEARS
POSSIBLE...BEFORE ACTIVITY FINALLY BEGINS TO SHIFT NORTHEASTWARD
THROUGH THE MID MISSOURI VALLEY. UNTIL THIS OCCURS...LOCALIZED
STRONG GUSTY WINDS AND HAIL WILL REMAIN POSSIBLE...BUT FREQUENT
CLOUD TO GROUND LIGHTNING AND THE RISK FOR HEAVY RAIN MAY BECOME
MORE PROMINENT...ASSOCIATED WITH PERSISTENT/TRAINING STORMS IN THE
PRESENCE OF MODERATE POTENTIAL INSTABILITY AND SEASONABLY HIGH
PRECIPITABLE WATER IN EXCESS OF 1.5 INCHES.

..KERR.. 08/25/2009

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

ATTN...WFO...OAX...GID...LBF...

LAT...LON 40910015 41699987 42189911 42449798 42239689 41529707
41239820 40849884 40649935 40659977 40910015

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KOAX [250317]: Preliminary Local Storm Report

NWUS53 KOAX 250317
LSROAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1017 PM CDT MON AUG 24 2009

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

1016 PM HEAVY RAIN ELGIN 41.98N 98.08W
08/24/2009 E1.00 INCH ANTELOPE NE LAW ENFORCEMENT

ONE INCH IN 50 MINUTES AND STILL RAINING

&&

$$

KERN

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KOAX [250310]: Preliminary Local Storm Report

NWUS53 KOAX 250310
LSROAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1010 PM CDT MON AUG 24 2009

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

1000 PM TSTM WND GST OAKDALE 42.07N 97.97W
08/24/2009 E60 MPH ANTELOPE NE CO-OP OBSERVER

&&

$$

KERN

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KOAX [250302]: Preliminary Local Storm Report

NWUS53 KOAX 250302
LSROAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1002 PM CDT MON AUG 24 2009

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

0950 PM HEAVY RAIN ELGIN 41.98N 98.08W
08/24/2009 E0.50 INCH ANTELOPE NE LAW ENFORCEMENT

HALF INCH OF RAIN IN 25 MINUTES

&&

$$

KERN

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KGLD [250257]: Preliminary Local Storm Report

NWUS53 KGLD 250257
LSRGLD

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
857 PM MDT MON AUG 24 2009

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

0700 PM TSTM WND DMG BREWSTER 39.36N 101.38W
08/24/2009 THOMAS KS EMERGENCY MNGR

TREE ON A HOUSE AND POWER LINES DOWN

&&

$$

024

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KGID [250253]: Preliminary Local Storm Report...summary

NWUS53 KGID 250253
LSRGID

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE HASTINGS NE
953 PM CDT MON AUG 24 2009

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

0915 PM TSTM WND GST 1 E ELYRIA 41.68N 98.99W
08/24/2009 E60.00 MPH VALLEY NE PUBLIC

0920 PM HAIL 4 NW ORD 41.64N 98.98W
08/24/2009 E1.00 INCH VALLEY NE PUBLIC

0922 PM HAIL 3 NW ORD 41.63N 98.97W
08/24/2009 E1.50 INCH VALLEY NE PUBLIC

0925 PM TSTM WND GST 2 NW ORD 41.62N 98.96W
08/24/2009 E60.00 MPH VALLEY NE PUBLIC

0951 PM HEAVY RAIN ORD 41.60N 98.93W
08/24/2009 M0.78 INCH VALLEY NE ASOS

RAINFALL THROUGH THE LAST 1.5 HOURS

&&

$$

NWS

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KGID [250251]: Preliminary Local Storm Report

NWUS53 KGID 250251
LSRGID

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
951 PM CDT MON AUG 24 2009

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

0951 PM HEAVY RAIN ORD 41.60N 98.93W
08/24/2009 M0.78 INCH VALLEY NE ASOS

RAINFALL THROUGH THE LAST 1.5 HOURS

&&

$$

NWS

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KOAX [250249]: Preliminary Local Storm Report

NWUS53 KOAX 250249
LSROAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
949 PM CDT MON AUG 24 2009

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

0945 PM HAIL ELGIN 41.98N 98.08W
08/24/2009 E0.88 INCH ANTELOPE NE TRAINED SPOTTER

&&

$$

CHERMOK

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KGID [250230]: Preliminary Local Storm Report

NWUS53 KGID 250230
LSRGID

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
930 PM CDT MON AUG 24 2009

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

0925 PM TSTM WND GST 2 NW ORD 41.62N 98.96W
08/24/2009 E60 MPH VALLEY NE PUBLIC

&&

$$

NWS

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KGID [250226]: Preliminary Local Storm Report

NWUS53 KGID 250226
LSRGID

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
926 PM CDT MON AUG 24 2009

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

0920 PM HAIL 4 NW ORD 41.64N 98.98W
08/24/2009 E1.00 INCH VALLEY NE PUBLIC

&&

$$

NWS

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KGID [250222]: Preliminary Local Storm Report

NWUS53 KGID 250222
LSRGID

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
922 PM CDT MON AUG 24 2009

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

0922 PM HAIL 3 NW ORD 41.63N 98.97W
08/24/2009 E1.50 INCH VALLEY NE PUBLIC

&&

$$

NWS

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KGID [250216]: Preliminary Local Storm Report

NWUS53 KGID 250216
LSRGID

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
916 PM CDT MON AUG 24 2009

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

0915 PM TSTM WND GST 1 E ELYRIA 41.68N 98.99W
08/24/2009 E60 MPH VALLEY NE PUBLIC

&&

$$

NWS

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 250031
SWODY1
SPC AC 250028

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0728 PM CDT MON AUG 24 2009

VALID 250100Z - 251200Z

...THERE IS A SLGT RISK OF SVR TSTMS ACROSS PARTS OF THE NRN
PLAINS...

...NRN AND CNTRL PLAINS...
A LOW-AMPLITUDE SHORT-WAVE TROUGH IS EVIDENT ON WATER VAPOR IMAGERY
EXTENDING SWWD FROM MANITOBA INTO WRN ND. AT THE SFC...A COLD FRONT
EXISTS FROM NW MN SWWD INTO NRN SD. RUC ANALYSIS SUGGESTS A CAPPING
INVERSION IS CURRENTLY PRESENT ACROSS MOST OF THE REGION BUT
FORECAST SOUNDINGS GRADUALLY QUICKLY COOL THE MID-LEVELS AND WEAKEN
THE CAP ALONG THE BOUNDARY THIS EVENING. THIS COMBINED WITH
INCREASING LARGE-SCALE ASCENT FROM THE APPROACHING SHORT-WAVE TROUGH
SHOULD AID CONVECTIVE DEVELOPMENT LATER THIS EVENING FROM NW MN SWWD
INTO NERN SD. THE ENVIRONMENT AHEAD OF THE COLD FRONT IS
CHARACTERIZED BY UPPER 60S F DEWPOINTS...MODERATE TO STRONG
INSTABILITY AND 35 TO 45 KT OF VERTICAL SHEAR. THIS SHOULD SUPPORT
AN ISOLATED SEVERE THREAT AS STORMS INCREASE IN COVERAGE LATER THIS
EVENING. THE BETTER THREAT FOR HAIL SHOULD EXIST ACROSS SE ND AND NE
SD WHERE INSTABILITY AND MID-LEVEL LAPSE RATES ARE MORE FAVORABLE.
ISOLATED WIND DAMAGE MAY ALSO OCCUR ESPECIALLY IF A LINE-SEGMENT CAN
ORGANIZED ACROSS THE REGION.

FURTHER SOUTHWEST ACROSS CNTRL NEB INTO NW KS AND ERN CO...SCATTERED
THUNDERSTORMS ARE DEVELOPING AHEAD OF A PRONOUNCED SHORTWAVE TROUGH
EVIDENT ON WATERY VAPOR IMAGERY. THE STRONGER STORMS ARE LOCATED
BEHIND THE COLD FRONT IN AN AREA WHERE PRECIPITABLE WATER VALUES ARE
MAXIMIZED ACCORDING TO THE RUC. ALTHOUGH SFC DEWPOINTS AND
INSTABILITY ARE ON THE LOW-SIDE FOR SEVERE STORMS...THE GOODLAND
WSR-88D VWP SHOWS ABOUT 40 KT OF VERTICAL SHEAR. THIS ALONG WITH
STEEP LOW-LEVEL LAPSE RATES MAY BE ENOUGH FOR ISOLATED STRONG WIND
GUSTS. HAIL WILL ALSO BE POSSIBLE WITH THE MORE INTENSE CELLS EARLY
THIS EVENING.

..BROYLES.. 08/25/2009

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KGLD [250004]: Preliminary Local Storm Report

NWUS53 KGLD 250004
LSRGLD

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
604 PM MDT MON AUG 24 2009

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

0450 PM TSTM WND DMG 5 NE BETHUNE 39.36N 102.35W
08/24/2009 KIT CARSON CO PUBLIC

PUBLIC REPORT OF TWO SHEDS BLOWN OVER BY STRONG
WINDS..ONE OF THE SHEDS IS OF STEEL CONSTRUCTION.

&&

$$

GJG

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KVEF [242330]: Preliminary Local Storm Report

NWUS55 KVEF 242330
LSRVEF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
429 PM PDT MON AUG 24 2009

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

1245 PM HEAVY RAIN 8 N SEARCHLIGHT 35.58N 114.91W
08/23/2009 M0.00 INCH CLARK NV LAW ENFORCEMENT

NHP ESCORTING NORTHBOUND TRAFFIC NORTH OF SEARCHLIGHT ON
US 95 DUE TO MINOR FLOODING. THE HIGHWAY WAS NOT CLOSED.

0311 PM FLASH FLOOD NIPTON 35.47N 115.28W
08/23/2009 SAN BERNARDINO CA LAW ENFORCEMENT

CHP WEBSITE REPORTED THAT NHP REQUIRED CALTRANS TO CLOSE
STATE ROUTE 164 NEAR NIIPTON FOR FLOODING IN THE AREA.

0715 PM FLASH FLOOD 4 NNW TOPOCK 34.77N 114.50W
08/23/2009 MOHAVE AZ TRAINED SPOTTER

A TRAINED SPOTTER REPORTED 2.19 INCHES OF RAIN FELL TO
CAUSE MINOR FLOODING WITH ROCK AND MUD IMPACTING THE
ROADWAY.

0915 PM HEAVY RAIN 4 NNW TOPOCK 34.77N 114.50W
08/23/2009 M3.69 INCH MOHAVE AZ TRAINED SPOTTER

A TRAINED SPOTTER MEASURED 3.69 INCHES OF RAIN FELL
BETWEEN 515PM AND 915PM.

&&

$$

EL

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KGLD [242258]: Preliminary Local Storm Report

NWUS53 KGLD 242258
LSRGLD

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
458 PM MDT MON AUG 24 2009

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

0450 PM HAIL 2 N BETHUNE 39.33N 102.42W
08/24/2009 E0.75 INCH KIT CARSON CO TRAINED SPOTTER

SPOTTER REPORTS PLENTY OF HAIL..INCLUDING SOME DRIFTS.
ALSO REPORTS MEASURED WIND GUST OF 50MPH.

&&

$$

GJG

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MESO: Mesoscale Discussion 1965

ACUS11 KWNS 242248
SWOMCD
SPC MCD 242248
KSZ000-NEZ000-COZ000-250015-

MESOSCALE DISCUSSION 1965
NWS STORM PREDICTION CENTER NORMAN OK
0548 PM CDT MON AUG 24 2009

AREAS AFFECTED...PARTS OF NE CO...WRN KS...SW NEB

CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY

VALID 242248Z - 250015Z

LOCALIZED WIND GUSTS AND SOME HAIL WILL REMAIN POSSIBLE ACROSS PARTS
OF THE REGION. BUT...DUE TO SPARSE COVERAGE AND SOMEWHAT
MARGINAL/SHORT LIVED NATURE OF THE SEVERE THREAT...THE NEED FOR A WW
IS NOT ANTICIPATED.

ISOLATED STRONG/SEVERE STORM DEVELOPMENT IS ONGOING NEAR/WEST OF
GOODLAND. THIS ACTIVITY IS OCCURRING WITHIN A FAVORABLE LOW-LEVEL
WARM ADVECTION REGIME NEAR OR JUST NORTH OF A WEAK SLOW MOVING OR
QUASI-STATIONARY SURFACE BOUNDARY EXTENDING FROM SOUTHWEST
NEBRASKA...NORTH NORTHEAST OF GOODLAND...ACROSS THE GOODLAND AREA
...INTO EAST CENTRAL/SOUTHEAST COLORADO. AN AREA OF UPPER FORCING
ASSOCIATED WITH IMPULSES/SPEED MAXIMA LIFTING NORTHEASTWARD AHEAD OF
THE WEAK TROUGH OVER THE INTERMOUNTAIN WEST...IS CONTRIBUTING TO
STORMS...WITH ADDITIONAL CONVECTION BEGINNING TO STRENGTHEN WITHIN
THE HOT THERMAL RIDGE AXIS TO THE EAST OF THE BOUNDARY.

A DEEPLY MIXED BOUNDARY LAYER WITH LARGE TEMPERATURE/DEW POINT
SPREADS WILL BE CONDUCIVE TO LOCALIZED DOWNBURSTS IN A BAND
NORTHEAST THROUGH SOUTHWEST OF HILL CITY. HOWEVER...A MORE MOIST
NORTHEASTERLY LOW-LEVEL FLOW TO THE COOL SIDE OF THE BOUNDARY
FARTHER TO THE WEST IS EXPECTED TO PROVIDE SUPPORT FOR MORE
SUSTAINED STORMS...CONTRIBUTING TO LARGER CAPE AND STRONGER SHEAR AT
LEAST MARGINALLY SUPPORTIVE OF SUPERCELL TYPE STRUCTURES. STRONGEST
STORMS ARE EXPECTED TO DEVELOP WITH UPPER FORCING NORTH OF GOODLAND
INTO AREAS WEST OF MCCOOK DURING THE NEXT FEW HOURS... BUT PROBABLY
WILL BEGIN TO DIMINISH WITH THE ONSET OF BOUNDARY LAYER COOLING BY
OR SHORTLY AFTER THE 02-03Z TIME FRAME.

..KERR.. 08/24/2009

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

ATTN...WFO...GID...LBF...DDC...GLD...PUB...BOU...

LAT...LON 38580408 39120379 39490314 39960221 40330167 40740080
40719976 40279901 39539912 38909978 38290084 37730171
37540285 37860328 38190384 38580408

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KGLD [242240]: Preliminary Local Storm Report

NWUS53 KGLD 242240
LSRGLD

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
439 PM MDT MON AUG 24 2009

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

0439 PM HAIL 1 N BETHUNE 39.32N 102.42W
08/24/2009 E0.75 INCH KIT CARSON CO TRAINED SPOTTER

ALSO MEASURED PEAK WIND GUST OF 49 MPH

&&

$$

024

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KGLD [242231]: Preliminary Local Storm Report

NWUS53 KGLD 242231
LSRGLD

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
431 PM MDT MON AUG 24 2009

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

0415 PM HAIL 4 SSE STRATTON 39.24N 102.58W
08/24/2009 E1.75 INCH KIT CARSON CO PUBLIC

&&

$$

GJG

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KBIS [242227]: Preliminary Local Storm Report

NWUS53 KBIS 242227
LSRBIS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
527 PM CDT MON AUG 24 2009

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

1255 AM TSTM WND GST WATFORD CITY 47.80N 103.28W
08/24/2009 E60 MPH MCKENZIE ND LAW ENFORCEMENT

LATE REPORT. HIGH WIND FROM WATFORD CITY TO ABOUT 18
MILES NORTH OF WATFORD CITY FOR A LONG TIME. TREE
BRANCHES BROKEN.

0155 AM HAIL ROSS 48.31N 102.55W
08/24/2009 E1.00 INCH MOUNTRAIL ND PUBLIC

LATE REPORT.

0230 AM TSTM WND GST LOSTWOOD 48.48N 102.42W
08/24/2009 E65 MPH MOUNTRAIL ND PUBLIC

LATE REPORT.

&&

$$

JP MARTIN

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KGLD [242220]: Preliminary Local Storm Report

NWUS53 KGLD 242220
LSRGLD

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
420 PM MDT MON AUG 24 2009

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

0405 PM HAIL 7 S STRATTON 39.21N 102.61W
08/24/2009 E1.00 INCH KIT CARSON CO PUBLIC

PUBLIC ALSO REPORTS STRONG WINDS WHICH SNAPPED A 4-5 INCH
LIVE TREE BRANCH.

&&

$$

GJG

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WATCHES: Tornado Watch - Number 733

WWUS20 KWNS 240703
SEL3
SPC WW 240703
MTZ000-NDZ000-SDZ000-240700-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH - NUMBER 733
NWS STORM PREDICTION CENTER NORMAN OK
103 AM MDT MON AUG 24 2009

THE NWS STORM PREDICTION CENTER HAS CANCELLED
TORNADO WATCH NUMBER 733 ISSUED AT 755 PM MDT FOR PORTIONS OF

MONTANA
NORTH DAKOTA
SOUTH DAKOTA

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WATCHES: Severe Thunderstorm Watch Number 734

WWUS20 KWNS 240646
SEL4
SPC WW 240646
NDZ000-241200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 734
NWS STORM PREDICTION CENTER NORMAN OK
145 AM CDT MON AUG 24 2009

THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

NORTH CENTRAL NORTH DAKOTA

EFFECTIVE THIS MONDAY MORNING FROM 145 AM UNTIL 700 AM CDT.

HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 55
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 75 MILES WEST
NORTHWEST OF GARRISON NORTH DAKOTA TO 80 MILES EAST OF MINOT
NORTH DAKOTA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.

OTHER WATCH INFORMATION...CONTINUE...WW 733...

DISCUSSION...A BOW ECHO OVER NORTHWEST ND WILL CONTINUE TO TRACK
EAST-NORTHEASTWARD FOR SEVERAL MORE HOURS ACROSS NORTH CENTRAL ND.
MEANWHILE...POTENTIAL EXISTS FOR ISOLATED STORMS TO FORM ALONG THE
TRAILING FLANK OF THE BOW. DAMAGING WINDS AND HAIL WILL BE THE MAIN
THREATS WITH THESE STORMS THROUGH DAYBREAK.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 25030.

...HART

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KUNR [240631]: Preliminary Local Storm Report

NWUS53 KUNR 240631
LSRUNR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
1231 AM MDT MON AUG 24 2009

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

1118 PM TSTM WND GST BUFFALO 45.58N 103.55W
08/23/2009 M70 MPH HARDING SD ASOS

&&

$$

MSMITH

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MESO: Mesoscale Discussion 1963

ACUS11 KWNS 240628
SWOMCD
SPC MCD 240627
NDZ000-MTZ000-240700-

MESOSCALE DISCUSSION 1963
NWS STORM PREDICTION CENTER NORMAN OK
0127 AM CDT MON AUG 24 2009

AREAS AFFECTED...NWRN INTO NORTH CENTRAL ND

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 240627Z - 240700Z

THREAT FOR SEVERE WEATHER EXPECTED TO PERSIST FROM NWRN INTO NORTH
CENTRAL ND THROUGH 09-10Z. TORNADO WATCH 733 MAY BE LOCALLY
EXTENDED IN TIME AND AREA...OR A NEW WATCH MAY BE ISSUED FOR
NWRN-NORTH CENTRAL ND.

REGIONAL RADARS INDICATED LEADING EDGE OF TSTMS ARE ORGANIZING INTO
MORE OF LINEAR TYPE STRUCTURES WITH AN ENE MOVEMENT AROUND 30 KT.
LATEST OBJECTIVE ANALYSES AND 05Z RUC FORECAST SOUNDINGS SUGGEST THE
ONGOING STORMS...NOW ALMOST COMPLETELY LOCATED IN NWRN ND...ARE AND
SHOULD REMAIN ELEVATED. STEEP MID LEVEL LAPSE RATES...EFFECTIVE
BULK SHEAR /50-60 KT/...AND MODERATE INSTABILITY WILL MAINTAIN
POTENTIAL FOR ORGANIZED ROTATING UPDRAFTS WITH ATTENDANT THREAT OF
HAIL AND DAMAGING WINDS.

..PETERS.. 08/24/2009

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

ATTN...WFO...FGF...BIS...GGW...

LAT...LON 47540396 47980421 48670393 48960385 49180238 49149979
48999946 48709937 48039998 47640052 47540396

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KBIS [240542]: Preliminary Local Storm Report

NWUS53 KBIS 240542
LSRBIS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
1242 AM CDT MON AUG 24 2009

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

1235 AM HAIL 11 NNE WILLISTON 48.30N 103.53W
08/24/2009 E1.00 INCH WILLIAMS ND TRAINED SPOTTER

&&

$$

PJA

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 240541
SWODY1
SPC AC 240539

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1239 AM CDT MON AUG 24 2009

VALID 241200Z - 251200Z

...NO SVR TSTM AREAS FORECAST...

...NRN PLAINS AND CNTRL PLAINS...
AN UPPER-LEVEL RIDGE IN THE UPPER-MS VALLEY WILL MOVE QUICKLY EWD
TODAY INTO THE GREAT LAKES REGION AS A LOW-AMPLITUDE SHORTWAVE
TROUGH MOVES INTO THE NRN PLAINS. AT THE SFC...A WELL-DEVELOPED LOW
WILL MOVE ENEWD ACROSS ND WITH A TRAILING COLD FRONT ADVANCING ESEWD
INTO THE DAKOTAS AND NEB. A STRONG CAPPING INVERSION WILL WEAKEN
ACROSS THE REGION THIS AFTERNOON ALLOWING FOR THUNDERSTORM
INITIATION ALONG THE COLD FRONT FROM NRN MN SWWD INTO ERN SD AND
CNTRL NEB. OTHER STORMS SHOULD INITIATE IN THE HIGHER TERRAIN OF SE
WY AND MOVE EWD INTO THE CNTRL HIGH PLAINS.

FORECAST SOUNDINGS ALONG THE ZONE OF EXPECTED INITIATION AT 21Z SHOW
ABOUT 25 KT OF 0-6 KM SHEAR DUE MOSTLY TO DIRECTIONAL SHEAR BELOW
700 MB. THIS SUGGESTS STORM STRUCTURES WILL REMAIN MULTICELL AND
SOMEWHAT DISORGANIZED. AS THE COLD FRONT APPROACHES THE ERN
DAKOTAS...FORECAST SOUNDINGS VEER WINDS AT THE LOW-LEVELS MAKING THE
SHEAR SLIGHTLY LESS FAVORABLE WITH TIME DURING THE EARLY EVENING.
FOR THIS REASON...WILL ONLY FORECAST MARGINALLY SEVERE CONVECTION IN
THE NRN PLAINS WITH HAIL AND ISOLATED DAMAGING WIND GUSTS THE MAIN
SEVERE THREATS.

FURTHER SOUTHWEST IN SE WY AND WRN NEB...VERTICAL SHEAR IS FORECAST
TO BE STRONGER THIS AFTERNOON DUE TO SPEED SHEAR IN THE MID-LEVELS.
THIS COULD SUPPORT A FEW ROTATING STORMS. HOWEVER...WEAK INSTABILITY
SHOULD MAKE ANY SEVERE THREAT VERY ISOLATED WITH HAIL THE MAIN
THREAT.

...SE TX...
ONSHORE FLOW WILL CONTINUE TODAY REINFORCING A NARROW MOIST AXIS
WITH SFC DEWPOINTS IN THE LOWER TO MID 70S F EXTENDING NWWD FROM THE
UPPER TX COAST INTO ECNTRL TX. MODERATE TO STRONG INSTABILITY SHOULD
AGAIN BE IN PLACE TODAY ALONG THE MOIST AXIS WITH SCATTERED
THUNDERSTORMS INITIATING THIS AFTERNOON. FORECAST SOUNDINGS IN
ECNTRL TX AT 21Z SHOW VERY STEEP LOW-LEVEL LAPSE RATES WHICH SHOULD
BE FAVORABLE FOR MARGINALLY SEVERE STORMS CAPABLE OF PRODUCING
STRONG WIND GUSTS ESPECIALLY WHERE STRONG INSTABILITY IS PRESENT.

..BROYLES/SMITH.. 08/24/2009

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DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 240537
SWODY2
SPC AC 240535

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1235 AM CDT MON AUG 24 2009

VALID 251200Z - 261200Z

...NO SVR TSTM AREAS FORECAST...

...CENTRAL PLAINS/MID MS VALLEY...

GENERALLY WEAK LARGE SCALE FLOW REGIME WILL REMAIN ACROSS THE CONUS
THROUGH THE DAY2 PERIOD...NOT TOO ATYPICAL OF LATE SUMMER. NRN-MOST
CURRENT...CHARACTERIZED BY STRONGER WLYS ACROSS CANADA...WILL FORCE
A WEAK COLD FRONT INTO THE CNTRL PLAINS/MID MS VALLEY REGION
TUESDAY...PRIMARILY IN RESPONSE TO EJECTING SHORTWAVE TROUGH OVER
ONTARIO. THIS BOUNDARY WILL BE DRAPED ACROSS WI...SWWD THROUGH IA
INTO WRN KS/ERN CO BY PEAK HEATING...WHERE IT SHOULD SERVE AS THE
FOCUS FOR CONVECTIVE DEVELOPMENT AS CIN DECREASES AND BOUNDARY LAYER
DEEPENS. ADDITIONALLY...LATE EVENING MODEL GUIDANCE CONTINUES TO
SUGGEST REMNANTS OF SWRN U.S. UPPER VORT/SHORTWAVE TROUGH WILL
APPROACH THE WRN FRINGE OF AFOREMENTIONED SFC WIND SHIFT ACROSS CO
DURING THE LATTER HALF OF THE PERIOD. IT/S POSSIBLE WEAKER IMPULSES
WILL EJECT INTO THE CNTRL PLAINS WELL AHEAD OF PRIMARY TROUGH AXIS.
THIS COULD EASILY ENHANCE THUNDERSTORM DEVELOPMENT/EVOLUTION DURING
THE AFTERNOON-OVERNIGHT HOURS...PRIMARILY ALONG/JUST NORTH OF WIND
SHIFT WHERE WARM ADVECTION SHOULD AID ELEVATED UPDRAFTS. AT THIS
TIME IT APPEARS THERMODYNAMIC ENVIRONMENT WOULD PROVE SUPPORTIVE OF
ISOLATED DAMAGING WIND GUSTS...MAINLY DURING THE AFTERNOON/EVENING
BEFORE LOW LEVEL LAPSE RATES WEAKEN.

...ELSEWHERE...

SCATTERED THUNDERSTORMS WILL ONCE AGAIN DEVELOP ACROSS MUCH OF THE
SWRN U.S. ALONG AN AXIS FROM NRN MEXICO...ERN AZ/WRN NM INTO THE
CNTRL ROCKIES.

OTHER SCATTERED THUNDERSTORMS SHOULD BE CONCENTRATED ALONG THE FL
PENINSULA WHERE WEAK VERTICAL SHEAR AND MARGINAL LAPSE RATES SHOULD
SUPPORT PRIMARILY PULSE-TYPE SUB-SEVERE THUNDERSTORMS.

..DARROW.. 08/24/2009

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KBIS [240535]: Preliminary Local Storm Report

NWUS53 KBIS 240535
LSRBIS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
1235 AM CDT MON AUG 24 2009

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

1228 AM HAIL WILLISTON 48.15N 103.63W
08/24/2009 E0.88 INCH WILLIAMS ND NWS EMPLOYEE

PENNY TO NICKEL SIZE HAIL.

&&

$$

PJA

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KGGW [240534]: Preliminary Local Storm Report

NWUS55 KGGW 240534
LSRGGW

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
1134 PM MDT SUN AUG 23 2009

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

1118 PM HAIL 10 N SIDNEY 47.86N 104.16W
08/23/2009 E1.00 INCH RICHLAND MT STORM CHASER

&&

$$

BB

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KGGW [240506]: Preliminary Local Storm Report

NWUS55 KGGW 240506
LSRGGW

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
1106 PM MDT SUN AUG 23 2009

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

1055 PM TSTM WND GST SIDNEY 47.72N 104.16W
08/23/2009 M60 MPH RICHLAND MT AWOS

THUNDERSTORM WIND GUST FROM A STORM TO THE NORTHWEST OF
THE AIRPORT

&&

$$

RSMITH

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KGGW [240438]: Preliminary Local Storm Report

NWUS55 KGGW 240438
LSRGGW

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
1038 PM MDT SUN AUG 23 2009

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

0937 PM HAIL 1 S SCOBEY 48.78N 105.42W
08/23/2009 E0.88 INCH DANIELS MT TRAINED SPOTTER

DIME AND NICKEL SIZED HAIL WITH HEAVY RAIN.

&&

$$

RSMITH

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KGGW [240436]: Preliminary Local Storm Report

NWUS55 KGGW 240436
LSRGGW

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
1036 PM MDT SUN AUG 23 2009

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

0955 PM TSTM WND GST 4 S SCOBEY 48.40N 107.34W
08/23/2009 E60 MPH PHILLIPS MT PUBLIC

PEA SIZE HAIL WITH 50 TO 60 MPH WIND GUST MOVED DECK
FURNITURE. 1 1/2 INCHES OF RAIN COMING DOWN WITH THE HAIL
SIDEWAYS

&&

$$

RSMITH

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KGGW [240430]: Preliminary Local Storm Report

NWUS55 KGGW 240430
LSRGGW

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
1030 PM MDT SUN AUG 23 2009

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

1025 PM HAIL 14 NE CIRCLE 47.56N 105.39W
08/23/2009 E1.00 INCH MCCONE MT PUBLIC

QUATER SIZED HAIL ALONG WITH HEAVY RAIN.

&&

$$

RSMITH

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WATCHES: Severe Thunderstorm Watch - Number 732

WWUS20 KWNS 240425
SEL2
SPC WW 240425
AZZ000-CAZ000-NVZ000-240600-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH - NUMBER 732
NWS STORM PREDICTION CENTER NORMAN OK
1025 PM MDT SUN AUG 23 2009

THE NWS STORM PREDICTION CENTER HAS CANCELLED
SEVERE THUNDERSTORM WATCH NUMBER 732 ISSUED AT 410 PM MDT FOR PORTIONS OF

ARIZONA
CALIFORNIA
NEVADA

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MESO: Mesoscale Discussion 1962

ACUS11 KWNS 240413
SWOMCD
SPC MCD 240412
NDZ000-MTZ000-240545-

MESOSCALE DISCUSSION 1962
NWS STORM PREDICTION CENTER NORMAN OK
1112 PM CDT SUN AUG 23 2009

AREAS AFFECTED...PARTS OF ERN MT INTO WRN ND

CONCERNING...SEVERE THUNDERSTORM WATCH 733...

VALID 240412Z - 240545Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 733
CONTINUES.

THUNDERSTORM ACTIVITY APPEARS TO BE SLOWLY INCREASING IN COVERAGE/
INTENSITY ACROSS NORTHEASTERN MONTANA. AND...UPSCALE CONVECTIVE
GROWTH IS EXPECTED TO CONTINUE NORTH/EAST OF THE WOLF POINT AREA
DURING THE NEXT FEW HOURS...WITHIN A STRONG LOWER/MID TROPOSPHERIC
WARM ADVECTION REGIME...IN THE PRESENCE OF STEEP MID LEVEL LAPSE
RATES/MODERATE POTENTIAL INSTABILITY AND STRONG VERTICAL SHEAR.
MODEL GUIDANCE IS SUGGESTIVE THAT THE EVOLVING STORM CLUSTER WILL
BEGIN TO TURN WITH FAVORABLE LARGE-SCALE FORCING INTO NORTHWESTERN
NORTH DAKOTA...ACROSS THE WILLISTON AREA TOWARD MINOT...BY THE
06-07Z TIME FRAME. ALTHOUGH STORMS MAY BE ROOTED ABOVE A LOW-LEVEL
INVERSION LAYER...THERMODYNAMIC PROFILES CHARACTERIZED BY SIZABLE
LOWER/MID TROPOSPHERIC TEMPERATURE/DEW POINT SPREADS APPEAR
FAVORABLE FOR A SIGNIFICANT CONVECTIVELY GENERATED SURFACE COLD
POOL. IT IS UNCLEAR WHETHER DOWNDRAFTS WILL REACH THE SURFACE
ACCOMPANIED BY STRONG WIND GUSTS. BUT...A MODERATELY STRONG /UP TO
30 KT/ EASTERLY COMPONENT TO THE FLOW BELOW THE INVERSION...INTO THE
EASTWARD ADVANCING COLD POOL...MAY CONTRIBUTE A STRONG DYNAMICALLY
FORCED LOW-LEVEL BUOYANCY OSCILLATION CAPABLE OF GENERATING STRONG
POTENTIALLY DAMAGING SURFACE GUSTS.

..KERR.. 08/24/2009

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

ATTN...WFO...BIS...GGW...

LAT...LON 48960139 48600104 48160108 47790129 47670297 47220410
47640523 48790487 48960139

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