Saturday, September 5, 2009

KVEF [060219]: Preliminary Local Storm Report...summary

NWUS55 KVEF 060219
LSRVEF

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LAS VEGAS NV
718 PM PDT SAT SEP 05 2009

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

1206 PM HEAVY RAIN MOUNTAIN PASS 35.47N 115.54W
09/04/2009 E0.50 INCH SAN BERNARDINO CA LAW ENFORCEMENT

HEAVY RAIN REQUIRING ESCORT BETWEEN BAILEY ROAD AND
NIPTON. DEBRIS WAS REPORTED ON THE ROADWAY.

0215 PM HAIL 5 WNW SPRING VALLEY 36.14N 115.32W
09/04/2009 E0.25 INCH CLARK NV TRAINED SPOTTER

A SPOTTER ESTIMATED PEA SIZE HAIL AND WIND GUSTS AROUND
45 MPH FROM A THUNDERSTORM ON THE SOUTHWEST SIDE OF THE
LAS VEGAS VALLEY.

0235 PM HAIL 3 SSW SUMMERLIN 36.16N 115.33W
09/04/2009 E0.50 INCH CLARK NV TRAINED SPOTTER

HAIL ESTIMATED AT A HALF INCH IN DIAMETER FELL ON THE
SOUTHWEST SIDE OF THE LAS VEGAS VALLEY.

0300 PM HEAVY RAIN 3 WSW BISHOP 37.35N 118.46W
09/04/2009 E0.50 INCH INYO CA TRAINED SPOTTER

HEAVY RAIN CAUSED WATER TO RUN ACROSS A ROADWAY FROM
BISHOP CREEK.

0352 PM TSTM WND GST KINGMAN AIRPORT 35.26N 113.93W
09/04/2009 M64.00 MPH MOHAVE AZ ASOS

THUNDERSTORM WIND GUST FROM THE NORTHWEST OF 64 MPH
MEASURED AT THE KINGMAN AIRPORT.

0555 PM HAIL 5 S BULLHEAD CITY 35.08N 114.56W
09/04/2009 E0.25 INCH MOHAVE AZ TRAINED SPOTTER

A SPOTTER REPORTED HAIL SMALLER THAN PEA SIZE FELL NEAR
BULLHEAD CITY.

0600 PM FLASH FLOOD 11 W VALENTINE 35.41N 113.86W
09/04/2009 MOHAVE AZ PUBLIC

THE VALLE VISTA COUNTRY CLUB REPORTED WATER WITH
ROCKS...BOULDERS...AND OTHER DEBRIS ACROSS SEVERAL
ROADWAYS IN THE VALLE VISTA AREA.

0635 PM TSTM WND GST BULLHEAD CITY AIRPORT 35.16N 114.56W
09/04/2009 M55.00 MPH MOHAVE AZ AWOS

BULLHEAD CITY AWOS REPORTED A GUST OF 55 MPH FROM THE
SOUTHEAST.

0635 PM TSTM WND DMG 1 ENE BULLHEAD CITY 35.16N 114.55W
09/04/2009 MOHAVE AZ LAW ENFORCEMENT

SEVERAL POWER POLES WERE SNAPPED AND BLOWN OVER BY
THUNDERSTORM WINDS ALONG BULLHEAD CITY PARKWAY. THE TIME
OF THIS EVENT WAS ESTIMATED.

0655 PM HAIL LAUGHLIN 35.16N 114.58W
09/04/2009 E0.25 INCH CLARK NV TRAINED SPOTTER

PEA TO DIME SIZE HAIL WAS REPORTED BY A SPOTTER IN
LAUGHLIN.

0800 PM FLASH FLOOD 4 W NIPTON 35.46N 115.36W
09/04/2009 SAN BERNARDINO CA PUBLIC

THE OWNER OF THE NIPTON TRADING POST REPORTED FLOWING
WATER FROM A NEARBY WASH ACROSS NIPTON ROAD WITH DEBRIS.


1015 PM HEAVY RAIN LAKE HAVASU CITY 34.45N 114.33W
09/04/2009 E0.90 INCH SAN BERNARDINO AZ LAW ENFORCEMENT

WASHES WERE REPORTED RUNNING HIGH AND ROADS HAD A FEW
INCHES OF WATER ON THEM ESPECIALLY IN SOUTH LAKE HAVASU
CITY.

1100 PM TSTM WND GST 3 WNW GOLDEN VALLEY 35.23N 114.27W
09/04/2009 M61.00 MPH MOHAVE AZ TRAINED SPOTTER

A 61 MPH GUST CAUSED DAMAGED TO PATIO FURNITURE AND LIGHT
FIXTURES.

1100 PM HAIL 3 WNW GOLDEN VALLEY 35.23N 114.27W
09/04/2009 E0.25 INCH MOHAVE AZ TRAINED SPOTTER

INTENSE HAIL STORM A FEW INCHES DEEP ON PATIO.

1100 PM TSTM WND DMG GOLDEN VALLEY 35.22N 114.22W
09/04/2009 MOHAVE AZ LAW ENFORCEMENT

SEVERAL MOBILE HOME TIPPED OVER AND BLOWN ACROSS THE
ROADWAY. WINDS WERE MEASURED IN GOLDEN VALLEY AT 61 MPH.


1115 PM TSTM WND DMG 5 NE MOHAVE VALLEY 34.98N 114.53W
09/04/2009 MOHAVE AZ EMERGENCY MNGR

*** 8 INJ *** EMERGENCY MANAGER REPORTED THAT 20
RV/MOBILE HOMES DESTROYED AT HIGHWAY 95 AND AZTEC ROAD IN
FORT MOHAVE. EIGHT PEOPLE WERE INJURED WITH TWO SERIOUS.
TWO HOMES RECEIVED WATER/MUD DAMAGE. DAMAGE WAS INITIALLY
ESTIMATED AT 500,000 DOLLARS.

1115 PM TSTM WND GST GOLDEN VALLEY 35.22N 114.22W
09/04/2009 M67.00 MPH MOHAVE AZ AMATEUR RADIO

AMATEUR RADIO OPERATOR IN GOLDEN VALLEY REPORTED A WIND
GUST OF 67 MPH.

1115 PM HAIL GOLDEN VALLEY 35.22N 114.22W
09/04/2009 M1.75 INCH MOHAVE AZ AMATEUR RADIO

AN AMATEUR RADIO OPERATOR IN GOLDEN VALLEY REPORTED GOLF
BALL SIZED HAIL. THE HAIL BROKE ALL THE WEST WINDOWS OF
THE HOUSE...BROKE HIS WEATHER STATION...AND GOT ALL HIS
RADIO EQUIPMENT WET.

1115 PM TSTM WND DMG 5 NE MOHAVE VALLEY 34.98N 114.53W
09/04/2009 MOHAVE AZ LAW ENFORCEMENT

*** 6 INJ *** 12 MOBILE HOME TRAILERS WERE BLOWN OVER. 5
PEOPLE RECEIVED MINOR INJURIES WITH ONE ELDERLY PERSON
SERIOUSLY INJURED.

1200 AM HEAVY RAIN MESQUITE 36.79N 114.07W
09/05/2009 M0.91 INCH CLARK NV LAW ENFORCEMENT

LAW ENFORCEMENT IN MESQUITE REPORTED THAT HEAVY RAIN
CAUSED A FEW INCHES OF WATER ON ROADS IN MESQUITE. NO
ROADS WERE REPORTED CLOSED.

1230 AM HEAVY RAIN 5 N MOHAVE VALLEY 35.00N 114.58W
09/05/2009 E0.50 INCH MOHAVE AZ NWS EMPLOYEE

MUD CAUSED BY RUNOFF WAS ALL OVER PRIMA VALLEY ROAD NEAR
MOHAVE VALLEY. THE EVENT TIME WAS ESTIMATED.

1242 AM HAIL 3 NE BUNKERVILLE 36.81N 114.07W
09/05/2009 E0.25 INCH CLARK NV TRAINED SPOTTER

HAIL AROUND PEA SIZE IN DIAMETER WAS REPORTED BY A
SPOTTER ALONG WITH A WIND GUST OF 47 MPH.

0155 AM HEAVY RAIN KINGMAN AIRPORT 35.26N 113.93W
09/05/2009 M1.05 INCH MOHAVE AZ ASOS

A STORM TOTAL PRECIPITATION OF 1.05 INCHES WAS MEASURED
AT THE KINGMAN AIRPORT FROM A THUNDERSTORM.


&&
THIS IS A PRELIMINARY SUMMARY OF EVENTS FROM AROUND THE MOJAVE DESERT
AND SOUTHERN GREAT BASIN ASSOCIATED WITH THUNDERSTORM ACTIVITY FROM
FRIDAY AFTERNOON THROUGH EARLY SATURDAY MORNING.
$$

DM/BP/ASG/KL/CS

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KBOU [060204]: Preliminary Local Storm Report

NWUS55 KBOU 060204
LSRBOU

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DENVER CO
804 PM MDT SAT SEP 05 2009

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

0500 PM HEAVY RAIN AURORA 39.70N 104.81W
09/05/2009 M2.25 INCH ARAPAHOE CO MESONET

RAIN MEASUREMENT FROM AN ALERT RAIN GAGE AND THE TOTAL
WAS FROM 1620 UNTIL 1700 MDT.


&&

$$

BENTON

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KBYZ [060147]: Preliminary Local Storm Report

NWUS55 KBYZ 060147
LSRBYZ

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
747 PM MDT SAT SEP 05 2009

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

0656 PM TSTM WND GST LIVINGSTON 45.66N 110.56W
09/05/2009 M58 MPH PARK MT ASOS


&&

$$

TRC

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KABQ [060111]: Preliminary Local Storm Report

NWUS55 KABQ 060111
LSRABQ

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ALBUQUERQUE NM
710 PM MDT SAT SEP 05 2009

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

0240 PM FLASH FLOOD 3 SE PINEDALE 35.57N 108.41W
09/05/2009 MCKINLEY NM LAW ENFORCEMENT

VEHICLE WASHED AWAY IN ARROYO NEAR INTERSECTION OF SECOND
CANYON ROAD AND HIGHWAYS 11 AND 49. NO INJURIES KNOWN AT
THIS TIME.

0357 PM FLASH FLOOD RAMAH 35.13N 108.49W
09/05/2009 MCKINLEY NM LAW ENFORCEMENT

FOUR FEET OF WATER NEAR INTERSECTION OF MOUNTAIN VIEW
ROAD AND HIGHWAY 53.

0424 PM FLASH FLOOD 1 SSE RAMAH 35.12N 108.48W
09/05/2009 MCKINLEY NM LAW ENFORCEMENT

VEHICLE WASHED AWAY IN ARROYO. LAW ENFORCEMENT DISCOVERED
VEHICLE UNOCCUPIED WITH KEYS IN IGNITION.

0430 PM FLASH FLOOD RAMAH 35.13N 108.49W
09/05/2009 MCKINLEY NM PUBLIC

GIANT BOULDERS BLOCKING ROADS.


&&

$$

DPORTER

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 060054
SWODY1
SPC AC 060051

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0751 PM CDT SAT SEP 05 2009

VALID 060100Z - 061200Z

...NO SVR TSTM AREAS FORECAST...

...SRN CA...
STRONG/ISOLATED SEVERE STORMS CONTINUE ACROSS PARTS OF SRN CA...NEAR
AN OUTFLOW BOUNDARY WHICH HAS SURGED WWD OUT OF AZ ACROSS THE CO
VALLEY. RECENT SURFACE ANALYSIS SHOWS A WELL-HEATED AND VERY MOIST
BOUNDARY LAYER ACROSS PARTS OF IMPERIAL...SAN
DIEGO...RIVERSIDE...AND SAN BERNARDINO COUNTIES -- WHICH SHOULD
CONTINUE TO FUEL ACTIVE CONVECTION OVER THE NEXT FEW HOURS. WHILE
DIURNAL STABILIZATION SHOULD YIELD A SLOW DECREASE IN CONVECTIVE
INTENSITY LATER THIS EVENING...MODEST/VEERING FLOW WITH HEIGHT
COMBINED WITH THE DEGREE OF INSTABILITY SUGGESTS THE POTENTIAL FOR
HAIL AND/OR LOCALLY-DAMAGING WINDS WITH A FEW OF THE STRONGEST
STORMS EARLY THIS EVENING.

..GOSS.. 09/06/2009

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KPSR [060029]: Preliminary Local Storm Report

NWUS55 KPSR 060029
LSRPSR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PHOENIX AZ
529 PM MST SAT SEP 05 2009

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

0510 PM DUST STORM EL CENTRO 32.79N 115.56W
09/05/2009 IMPERIAL CA ASOS

QUARTER MILE VISIBILITY IN BLOWING DUST. PEAK WIND GUST
OF 46 KTS.


&&

$$

JROGERS

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KVEF [052356]: Preliminary Local Storm Report

NWUS55 KVEF 052356
LSRVEF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
456 PM PDT SAT SEP 05 2009

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

0340 PM FLASH FLOOD 13 E MID HILLS RAWS 35.12N 115.19W
09/05/2009 SAN BERNARDINO CA PARK/FOREST SRVC

THE NATIONAL PARK SERVICE REPORTED EXTENSIVE FLOODING DUE
TO HEAVY RAINFALL HAD OCCURRED ON THE EASTERN PART OF
CEDAR CANYON ROAD NEAR LANFAIR ROAD.

0340 PM HAIL 13 E MID HILLS RAWS 35.13N 115.18W
09/05/2009 E1.00 INCH SAN BERNARDINO CA PARK/FOREST SRVC

THE PARK SERVICE REPORTED QUARTER SIZE HAIL FELL ON THE
MOJAVE NATIONAL PRESERVE NEAR CEDAR CANYON ROAD AND
LANFAIR ROAD.


&&

$$

STACHELSKI

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KPQR [052249]: Preliminary Local Storm Report

NWUS56 KPQR 052249
LSRPQR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PORTLAND OR
349 PM PDT SAT SEP 05 2009

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

0347 PM HEAVY RAIN 6 N COUGAR 46.14N 122.30W
09/05/2009 M2.25 INCH COWLITZ WA TRAINED SPOTTER

RAINFALL IN LAST 26 HOURS, ENDING AT 330 PM TODAY.


&&

$$

CROCKEY

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KPSR [052245]: Preliminary Local Storm Report

NWUS55 KPSR 052245
LSRPSR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PHOENIX AZ
345 PM MST SAT SEP 05 2009

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

0340 PM DUST STORM 5 ESE SOMERTON 32.58N 114.63W
09/05/2009 YUMA AZ TRAINED SPOTTER

VISIBILITY REDUCED TO ONE QUARTER MILE IN BLOWING DUST.


&&

$$

JROGERS

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KVEF [052205]: Preliminary Local Storm Report

NWUS55 KVEF 052205
LSRVEF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
305 PM PDT SAT SEP 05 2009

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

0600 PM FLASH FLOOD 11 W VALENTINE 35.41N 113.86W
09/04/2009 MOHAVE AZ PUBLIC

THE VALLE VISTA COUNTRY CLUB REPORTED WATER WITH
ROCKS...BOULDERS...AND OTHER DEBRIS ACROSS SEVERAL
ROADWAYS IN THE VALLE VISTA AREA.

0800 PM FLASH FLOOD 4 W NIPTON 35.46N 115.36W
09/04/2009 SAN BERNARDINO CA PUBLIC

THE OWNER OF THE NIPTON TRADING POST REPORTED FLOWING
WATER FROM A NEARBY WASH ACROSS NIPTON ROAD WITH DEBRIS.

&&

$$

KLABELLE

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KJAN [052152]: Preliminary Local Storm Report

NWUS54 KJAN 052152
LSRJAN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
452 PM CDT SAT SEP 05 2009

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

0400 PM HAIL DUCK HILL 33.63N 89.71W
09/05/2009 E0.25 INCH MONTGOMERY MS PUBLIC

PEA SIZED HAIL REPORTED BY SPOTTER

0100 PM FLASH FLOOD MERIDIAN 32.38N 88.71W
09/05/2009 LAUDERDALE MS PUBLIC

NUMEROUS STREETS FLOODED IN DOWNTOWN MERIDIAN. REPORTED
BY CITY.


&&

$$

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KPSR [052125]: Preliminary Local Storm Report

NWUS55 KPSR 052125
LSRPSR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PHOENIX AZ
225 PM MST SAT SEP 05 2009

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

0210 PM HEAVY RAIN 2 NE TACNA 32.72N 113.92W
09/05/2009 E1.00 INCH YUMA AZ TRAINED SPOTTER

ONE INCH IN ONE HALF HOUR IN TACNA. MINOR STREET
FLOODING. WASHES BEGINNING TO FLOW WITH WATER. PEA SIZED
HAIL OBSERVED WITH STORM AROUND 155 PM MST.

0200 PM FLASH FLOOD QUARTZSITE 33.67N 114.21W
09/05/2009 LA PAZ AZ LAW ENFORCEMENT

WASHES RUNNING HEAVY NORTH AND SOUTH OF QUARTZSITE.
STREET FLOODING IN TOWN REQUIRING ADOT TO CLOSE STATE
HIGHWAY 95 SOUTH OF QUARTZSITE.


&&

$$

JROGERS

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KSHV [052054]: Preliminary Local Storm Report

NWUS54 KSHV 052054
LSRSHV

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
354 PM CDT SAT SEP 05 2009

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

0348 PM HAIL BATTIEST 34.40N 94.93W
09/05/2009 M0.50 INCH MCCURTAIN OK PUBLIC

REPORT FROM NWS SUBSTATION COOP OBSERVER.


&&

$$

8

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KSGF [052037]: Preliminary Local Storm Report

NWUS53 KSGF 052037
LSRSGF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
337 PM CDT SAT SEP 05 2009

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

1145 AM FLOOD 1 S MOODY 36.51N 91.99W
09/05/2009 HOWELL MO DEPT OF HIGHWAYS

STATE ROUTE 142 FLOODED NEAR MOODY


&&

$$

KARDELL

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 051958
SWODY1
SPC AC 051955

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0255 PM CDT SAT SEP 05 2009

VALID 052000Z - 061200Z

...NO SVR TSTM AREAS FORECAST...

...NRN INTERMOUNTAIN REGION...

CURRENT FORECAST APPEARS ON TRACK.

STRONG SHORT WAVE TROUGH CURRENTLY MOVING ONTO THE WA/ORE COASTS IS
FORECAST TO WEAKEN SLIGHTLY WHILE PROGRESSING NEWD THROUGH THE NRN
ROCKIES. NONETHELESS...THIS SYSTEM WILL BE PRECEEDED BY A ZONE OF
ENHANCED FORCING FOR ASCENT WHICH SHOULD SERVE TO FOCUS INCREASINGLY
DEEP CONVECTION THIS AFTERNOON INTO TONIGHT ALONG ASSOCIATED SURFACE
FRONT. AIR MASS IS RELATIVELY DRY WITH PW VALUES AOB .75 INCH.
HOWEVER...STEEPENING LAPSE RATES AND STRENGTHENING VERTICAL SHEAR
MAY PROMOTE A FEW STRONGER STORMS CAPABLE OF LOCALLY STRONG WIND
GUSTS AND PERHAPS SOME HAIL.

...AZ...

THE ONLY CHANGE TO REGION IS THE ADDITION OF A 5% HAIL AREA.

TSTMS HAVE BECOME FAIRLY NUMEROUS TODAY FROM THE HIGHER TERRAIN OF
CNTRL AZ SWD INTO THE LOWER CO VALLEY. MORE RECENT...VIGOROUS TSTM
DEVELOPMENT HAS OCCURRED ALONG THE WRN EDGE OF THICKER CLOUDS OVER
LA PAZ AND YUMA COUNTIES. HERE...AIR MASS HAS BECOME HOT AND IS
QUITE MOIST WITH MLCAPE OF 1500-2500 J/KG. BACKGROUND ASCENT SHOULD
CONTINUE TO BE AIDED BY SRN FRINGE OF MIDLEVEL IMPULSE MOVING EWD
THROUGH THE REGION...AND THIS SUGGESTS THAT TSTM ACTIVITY WILL
PERSIST INTO TONIGHT. WHILE VERTICAL SHEAR WILL REMAIN RELATIVELY
WEAK...WATER LOADING EFFECTS AND MERGING STORM-SCALE OUTFLOWS WILL
PRESENT SOME WIND THREAT. HAIL MAY ACCOMPANY THE STRONGER CORES AS
WELL.

..MEAD.. 09/05/2009

.PREV DISCUSSION... /ISSUED 1129 AM CDT SAT SEP 05 2009/

...SOUTHWEST TO INTERMOUNTAIN WEST...
ABUNDANT MOISTURE AND BACKGROUND ASCENT ASSOCIATED WITH THE PASSAGE
OF SEVERAL SHORT WAVE PERTURBATIONS WILL CONTINUE TO CONTRIBUTE TO
FAIRLY EXTENSIVE CONVECTION FROM LOWER CO RIVER VALLEY NWD/NEWD
ACROSS THE GREAT BASIN/INTERMOUNTAIN REGIONS TODAY. LIMITED
INHIBITION INDICATED IN MORNING SOUNDINGS ALSO SUPPORTS A GRADUAL
INCREASE IN STORM COVERAGE WITH DIURNAL HEATING CYCLE. UNLIKE RECENT
DAYS...MORNING SOUNDINGS SHOW GREATER LOW LEVEL MOISTURE AND THERE
ARE MORE ONGOING STORMS EARLY TODAY. THUS...ANY MICROBURST/WIND
DAMAGE POTENTIAL WILL LIKELY OCCUR WITH MORE PERSISTENT STORM
ACTIVITY MOVING INTO AREAS EXPERIENCING GREATER HEATING THROUGH THIS
AFTERNOON. GIVEN WEAK FLOW REGIME AND EXTENT OF ONGOING CONVECTION
AND CONVECTIVE DEBRIS...SEVERE POTENTIAL FROM WIND/HAIL APPEARS
LIMITED. HOWEVER...SLOW/ERRATIC CELL MOTIONS COULD RESULT IN LOCALLY
EXCESSIVE RAINFALL.

...ID/MT BORDER AREA...
STRONG DYNAMIC FORCING FOR ASCENT/HEIGHT FALLS WILL ACCOMPANY THE
APPROACH OF A PAC NW UPPER TROUGH ACROSS THE INTERIOR NW TODAY.
STEEPENING LAPSE RATES AND SOME MOISTENING ASSOCIATED WITH THE
APPROACH OF THIS SYSTEM COULD BOOST TSTM POTENTIAL ACROSS THE
BITTERROOT MOUNTAINS BY LATE AFTERNOON. DESPITE LACK OF GREATER LOW
LEVEL MOISTURE...IT DOES APPEAR THAT RELATIVELY HIGH-BASED
CONVECTION WILL OCCUR AMIDST INCREASING SHEAR. THIS ACTIVITY WILL BE
FURTHER FOCUSED WITHIN SURFACE PRE-FRONTAL TROUGH AND COULD POSE
SOME THREAT OF ISOLATED DAMAGING WINDS AND PERHAPS SOME HAIL.

...ELSEWHERE...
PERSISTENT WEAK ASCENT ASSOCIATED WITH SMALL-SCALE VORTEX WILL
CONTINUE TO ACT ON MOIST AND DIURNALLY WARMED AIR MASS TO PROVOKE
SHOWERS AND TSTMS FROM AR/MO EWD ACROSS THE MIDDLE MS VALLEY. WEAK
FLOW AND MARGINAL LAPSE RATES SHOULD PRECLUDE SEVERE.

THERE IS A SIGNAL IN SOME GUIDANCE INDICATING AN INCREASE IN OVERALL
STORM COVERAGE AND PERHAPS INTENSITY ACROSS THE MS DELTA REGION
THROUGH THE DAY. FORCING/FOCUS FOR THIS DEVELOPMENT APPEARS
AMBIGUOUS OTHER THAN PERHAPS AN INCREASE IN LOW LEVEL MOISTURE FLUX
INTO THE REGION AND GULF BREEZE DEVELOPMENT. WEAK FLOW BUT MORE THAN
SUFFICIENT MOISTURE AND WEAK CAP COULD LEAD TO AN INCREASING CHANCE
FOR WET MICROBURSTS THIS AFTERNOON. LIMITED FOCUS ATTM PRELUDES
TRYING TO DELINEATE A GREATER PROBABILITY AREA.

A SIMILAR ENVIRONMENT EXISTS ACROSS SRN FL. HERE...
OUTFLOW/DIFFERENTIAL HEATING FROM A PERSISTENT CLUSTER OF STORMS
OVER THE KEYS MAY INTERACT WITH GULF BREEZE BOUNDARIES TO SUPPORT AN
ISOLATED DOWNBURST WIND EVENT OVER THE NEXT SEVERAL HOURS. AGAIN THE
PROBABILITY OF THIS EVENT BASED ON DURATION/COVERAGE APPEARS QUITE
LOW BUT IS ALSO NON-ZERO.

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KLZK [051935]: Preliminary Local Storm Report

NWUS54 KLZK 051935
LSRLZK

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
234 PM CDT SAT SEP 05 2009

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

0230 PM TSTM WND DMG 1 S WICKES 34.29N 94.34W
09/05/2009 POLK AR LAW ENFORCEMENT

LARGE TREE LIMBS WERE BLOWN DOWN ALONG HIGHWAY 71... JUST
SOUTH OF WICKES.


&&

$$

44

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KKEY [051811]: Preliminary Local Storm Report

NWUS52 KKEY 051811
LSRKEY

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
211 PM EDT SAT SEP 05 2009

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

1050 AM WATER SPOUT 1 NE BOCA CHICA 24.60N 81.69W
09/05/2009 GMZ032 FL OTHER FEDERAL

A WATERSPOUT WAS REPORTED BY NAVY PERSONELL AT THE BOCA
CHICA TOWER. THE WATERSPOUT WAS OBSERVED ALL THE WAY DOWN
TO THE WATER.

1136 AM TSTM WND GST CUDJOE KEY 24.67N 81.50W
09/05/2009 E44 MPH LOWER KEYS IN MONR FL CO-OP OBSERVER

A WIND GUST OF 44 MPH WAS REPORTED BY A CO-OP OBSERVER IN
CUDJOE KEY. THIS GUST WAS ASSOCIATED WITH A PASSING
THUNERSTORM.


&&

$$

WHOVORKA

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KPSR [051751]: Preliminary Local Storm Report

NWUS55 KPSR 051751
LSRPSR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PHOENIX AZ
1050 AM MST SAT SEP 05 2009

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

1030 AM HEAVY RAIN 5 NNE LAVEEN 33.49N 112.11W
09/05/2009 M0.90 INCH MARICOPA AZ TRAINED SPOTTER

MEASURED 0.90 INCHES IN 1.5 HOURS...0.4 INCHES BETWEEN 9
AND 10 AM...0.5 INCHES BETWEEN 10 AND 1030 AM.


&&

$$

PADDOCK

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KPSR [051703]: Preliminary Local Storm Report

NWUS55 KPSR 051703
LSRPSR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PHOENIX AZ
1003 AM MST SAT SEP 05 2009

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

0950 AM HEAVY RAIN 5 NE BUCKEYE 33.43N 112.53W
09/05/2009 M0.65 INCH MARICOPA AZ TRAINED SPOTTER

MEASURED 0.65 INCHES BETWEEN 920 AM AND 950 AM.


&&

$$

PADDOCK

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DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 051648
SWODY2
SPC AC 051647

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1147 AM CDT SAT SEP 05 2009

VALID 061200Z - 071200Z

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...

PRIMARY FEATURE OF INTEREST DURING THE DAY TWO PERIOD IS STRONG
MID/UPPER-LEVEL TROUGH WHICH WILL PROGRESS EWD THROUGH WRN CANADA
AND THE NWRN CONUS. AT THE SURFACE...LOW PRESSURE ASSOCIATED WITH
THIS SYSTEM WILL CONCURRENTLY DEVELOP EWD THROUGH CNTRL/ERN
MT...ALONG PACIFIC COLD FRONT WHICH WILL MOVE FROM THE NRN ROCKIES
THROUGH NRN HIGH PLAINS.

...MT...

PRE-FRONTAL AIR MASS IS FORECAST TO REMAIN RELATIVELY DRY WITH
DEWPOINTS IN THE 40S /TO PERHAPS LOWER 50S ERN MT/ AND PW VALUES OF
GENERALLY LESS THAN AN INCH. HOWEVER...STEEPENING LOW TO MIDLEVEL
LAPSE RATES ASSOCIATED WITH DAYTIME HEATING AND EWD ADVECTION OF EML
WILL SUPPORT WEAK CONVECTIVE INSTABILITY ALONG FRONT BY LATE
AFTERNOON WITH MLCAPE AOB 500 J/KG.

GIVEN THE STRENGTH OF THE EML RELATIVE TO LOW-LEVEL MOISTURE
AVAILABILITY...IT APPEARS THAT FRONTAL ZONE WILL REMAIN CAPPED
THROUGH MUCH OF THE DIURNAL HEATING CYCLE. LATEST MODEL GUIDANCE
SUGGESTS THAT ISOLATED STORM DEVELOPMENT WILL BE MOST LIKELY BY
EVENING INTO SUN NIGHT OVER PARTS OF N-CNTRL/NERN MT WHERE SUSTAINED
CONVERGENCE ALONG FRONT AND DEEP ASCENT ASSOCIATED WITH UPPER SYSTEM
CAN LOCALLY OVERCOME CONVECTIVE INHIBITION. FORECAST SOUNDINGS
INDICATE A DEEPLY-MIXED BOUNDARY LAYER /EVEN INTO EVENING/...AND
GIVEN THE STRENGTHENING SWLY WIND FIELDS AHEAD OF MIDLEVEL
TROUGH...SOME THREAT WILL EXIST FOR LOCALLY STRONG WIND GUSTS AND
PERHAPS SOME HAIL.

..MEAD.. 09/05/2009

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 051632
SWODY1
SPC AC 051629

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1129 AM CDT SAT SEP 05 2009

VALID 051630Z - 061200Z

...NO SVR TSTM AREAS FORECAST...

...SOUTHWEST TO INTERMOUNTAIN WEST...
ABUNDANT MOISTURE AND BACKGROUND ASCENT ASSOCIATED WITH THE PASSAGE
OF SEVERAL SHORT WAVE PERTURBATIONS WILL CONTINUE TO CONTRIBUTE TO
FAIRLY EXTENSIVE CONVECTION FROM LOWER CO RIVER VALLEY NWD/NEWD
ACROSS THE GREAT BASIN/INTERMOUNTAIN REGIONS TODAY. LIMITED
INHIBITION INDICATED IN MORNING SOUNDINGS ALSO SUPPORTS A GRADUAL
INCREASE IN STORM COVERAGE WITH DIURNAL HEATING CYCLE. UNLIKE RECENT
DAYS...MORNING SOUNDINGS SHOW GREATER LOW LEVEL MOISTURE AND THERE
ARE MORE ONGOING STORMS EARLY TODAY. THUS...ANY MICROBURST/WIND
DAMAGE POTENTIAL WILL LIKELY OCCUR WITH MORE PERSISTENT STORM
ACTIVITY MOVING INTO AREAS EXPERIENCING GREATER HEATING THROUGH THIS
AFTERNOON. GIVEN WEAK FLOW REGIME AND EXTENT OF ONGOING CONVECTION
AND CONVECTIVE DEBRIS...SEVERE POTENTIAL FROM WIND/HAIL APPEARS
LIMITED. HOWEVER...SLOW/ERRATIC CELL MOTIONS COULD RESULT IN LOCALLY
EXCESSIVE RAINFALL.

...ID/MT BORDER AREA...
STRONG DYNAMIC FORCING FOR ASCENT/HEIGHT FALLS WILL ACCOMPANY THE
APPROACH OF A PAC NW UPPER TROUGH ACROSS THE INTERIOR NW TODAY.
STEEPENING LAPSE RATES AND SOME MOISTENING ASSOCIATED WITH THE
APPROACH OF THIS SYSTEM COULD BOOST TSTM POTENTIAL ACROSS THE
BITTERROOT MOUNTAINS BY LATE AFTERNOON. DESPITE LACK OF GREATER LOW
LEVEL MOISTURE...IT DOES APPEAR THAT RELATIVELY HIGH-BASED
CONVECTION WILL OCCUR AMIDST INCREASING SHEAR. THIS ACTIVITY WILL BE
FURTHER FOCUSED WITHIN SURFACE PRE-FRONTAL TROUGH AND COULD POSE
SOME THREAT OF ISOLATED DAMAGING WINDS AND PERHAPS SOME HAIL.

...ELSEWHERE...
PERSISTENT WEAK ASCENT ASSOCIATED WITH SMALL-SCALE VORTEX WILL
CONTINUE TO ACT ON MOIST AND DIURNALLY WARMED AIR MASS TO PROVOKE
SHOWERS AND TSTMS FROM AR/MO EWD ACROSS THE MIDDLE MS VALLEY. WEAK
FLOW AND MARGINAL LAPSE RATES SHOULD PRECLUDE SEVERE.

THERE IS A SIGNAL IN SOME GUIDANCE INDICATING AN INCREASE IN OVERALL
STORM COVERAGE AND PERHAPS INTENSITY ACROSS THE MS DELTA REGION
THROUGH THE DAY. FORCING/FOCUS FOR THIS DEVELOPMENT APPEARS
AMBIGUOUS OTHER THAN PERHAPS AN INCREASE IN LOW LEVEL MOISTURE FLUX
INTO THE REGION AND GULF BREEZE DEVELOPMENT. WEAK FLOW BUT MORE THAN
SUFFICIENT MOISTURE AND WEAK CAP COULD LEAD TO AN INCREASING CHANCE
FOR WET MICROBURSTS THIS AFTERNOON. LIMITED FOCUS ATTM PRELUDES
TRYING TO DELINEATE A GREATER PROBABILITY AREA.

A SIMILAR ENVIRONMENT EXISTS ACROSS SRN FL. HERE...
OUTFLOW/DIFFERENTIAL HEATING FROM A PERSISTENT CLUSTER OF STORMS
OVER THE KEYS MAY INTERACT WITH GULF BREEZE BOUNDARIES TO SUPPORT AN
ISOLATED DOWNBURST WIND EVENT OVER THE NEXT SEVERAL HOURS. AGAIN THE
PROBABILITY OF THIS EVENT BASED ON DURATION/COVERAGE APPEARS QUITE
LOW BUT IS ALSO NON-ZERO.

..CARBIN/RACY.. 09/05/2009

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KPSR [051632]: Preliminary Local Storm Report

NWUS55 KPSR 051632
LSRPSR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PHOENIX AZ
932 AM MST SAT SEP 05 2009

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

0915 AM HEAVY RAIN 5 ENE PEORIA 33.71N 112.17W
09/05/2009 M0.65 INCH MARICOPA AZ TRAINED SPOTTER

MEASURED 0.65 INCHES IN 25 MIN.


&&

$$

PADDOCK

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KSGF [051522]: Preliminary Local Storm Report

NWUS53 KSGF 051522
LSRSGF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1022 AM CDT SAT SEP 05 2009

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

0955 AM FLOOD 5 SSE GAINESVILLE 36.54N 92.40W
09/05/2009 OZARK MO DEPT OF HIGHWAYS

STATE HIGHWAY T CLOSED DUE TO FLOODING NEAR MAMMOTH.


&&

$$

KARDELL

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KSGF [051501]: Preliminary Local Storm Report

NWUS53 KSGF 051501
LSRSGF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1000 AM CDT SAT SEP 05 2009

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

0921 AM FLOOD 6 N STOVER 38.52N 92.99W
09/05/2009 MORGAN MO LAW ENFORCEMENT

LARGE TREE BLOCKING THE BRIDGE OVER GABRIEL CREEK ALONG
EHLERS ROAD.


&&

$$

KARDELL

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KSGF [051458]: Preliminary Local Storm Report

NWUS53 KSGF 051458
LSRSGF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
958 AM CDT SAT SEP 05 2009

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

0723 AM FLOOD 1 E GRAVOIS MILLS 38.31N 92.80W
09/05/2009 MORGAN MO LAW ENFORCEMENT

BRIDGE OVER LITTLE BUFFALO CREEK ON CLEAR WATER ROAD
WASHED OUT.


&&

$$

KARDELL

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KEWX [051416]: Preliminary Local Storm Report

NWUS54 KEWX 051416
LSREWX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
916 AM CDT SAT SEP 05 2009

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

0730 PM HAIL 4 NW LIBERTY HILL 30.71N 97.96W
09/04/2009 M0.75 INCH WILLIAMSON TX COCORAHS

HAIL FROM PEA TO PENNY SIZE WHICH LASTED FOR 10 MINUTES.

&&

$$

PM

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 051247
SWODY1
SPC AC 051244

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0744 AM CDT SAT SEP 05 2009

VALID 051300Z - 061200Z

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...
A STRONG NRN STREAM SHORTWAVE TROUGH WILL PROGRESS INLAND OVER THE
PAC NW TODAY INTO TONIGHT...WHILE THE PRIMARY BELT OF MID-UPPER
WESTERLIES REMAINS LARGELY N OF THE US/CANADIAN BORDER TO THE E OF
THE NRN ROCKIES. THE NET RESULT WILL BE A BROAD AREA OF WEAK FLOW
OVER MOST OF THE CONUS. ONE WEAK CLOSED LOW OVER MO IS EXPECTED TO
ONLY DRIFT EWD SINCE THIS SYSTEM IS EFFECTIVELY CUTOFF FROM THE MAIN
BELT OF FLOW...AND A WEAK UPPER TROUGH WILL ALSO PERSIST OVER THE
ERN GULF OF MEXICO. SCATTERED THUNDERSTORMS WILL BE FOCUSED OVER
CENTRAL/S FL IN ADVANCE OF THE ERN GULF TROUGH...AS WELL AS THE SRN
MO/NRN AR AREA AROUND THE PERIPHERY OF THE MO CLOSED LOW. FARTHER
W...THE REMNANTS OF A WEAK MID LEVEL TROUGH OVER NV WILL MOVE SLOWLY
EWD OVER NW AZ AND WRN UT DURING THE DAY.

...AZ AREA THIS AFTERNOON...
A BROAD BELT OF MAINLY DIURNAL CONVECTION IS EXPECTED FROM UT SWD
INTO AZ...DOWNSTREAM OF THE WEAK MID LEVEL TROUGH AND WITHIN A
LOW-MID LEVEL MOISTURE PLUME CHARACTERIZED BY PW VALUES OF 0.75-1.25
INCHES. DAYTIME HEATING OVER THE HIGHER TERRAIN WILL HELP FOCUS
STORM DEVELOPMENT DURING THE AFTERNOON...THOUGH CLOUD DEBRIS MAY
DISRUPT SURFACE HEATING ACROSS NRN AZ/SRN UT THE FIRST HALF OF THE
DAY. LOW-MID LEVEL LAPSE RATES MAY ALSO BE REDUCED COMPARED TO
YESTERDAY...AS A RESULT OF PRIOR CONVECTION. THE STRONGER
INSTABILITY IS EXPECTED NEAR AND S OF THE RIM IN AZ...WHERE A GULF
OF CA MOISTURE SURGE WILL HELP MAINTAIN BOUNDARY LAYER DEWPOINTS IN
THE 60S OVER THE LOWER DESERTS THROUGH THE DIURNAL HEATING/MIXING
CYCLE. STILL...A REGIME OF WEAK MID-UPPER WLY FLOW WILL NOT BE
CONDUCIVE TO STORM PROPAGATION FROM THE RIM TO THE LOWER
DESERTS...WHICH SUGGESTS THAT ANY THREAT FOR DAMAGING WINDS WILL BE
RATHER ISOLATED/MARGINAL.

...WRN MT THIS AFTERNOON/EVENING...
MID LEVEL MOISTURE WILL SPREAD NWD FROM THE NRN GREAT BASIN TO WRN
MT AND DEEP LAYER FLOW WILL INCREASE WITH THE APPROACH OF THE PAC NW
SHORTWAVE AND ASSOCIATED BAROCLINIC ZONE. HOWEVER...LOW-LEVEL
MOISTURE WILL BE QUITE LIMITED AHEAD OF THE FRONT...LEAVING
INVERTED-V PROFILES WITH WEAK BUOYANCY DURING THE AFTERNOON WITH
DAYTIME HEATING. THIS ENVIRONMENT MAY SUPPORT A FEW HIGH-BASED
STORMS WITH ISOLATED DAMAGING WIND POTENTIAL...THOUGH THE MARGINAL
LOW-LEVEL MOISTURE WILL LIMIT THE OVERALL SEVERE STORM THREAT.

..THOMPSON/GARNER.. 09/05/2009

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KVEF [051139]: Preliminary Local Storm Report

NWUS55 KVEF 051139
LSRVEF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
439 AM PDT SAT SEP 05 2009

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

1115 PM TSTM WND DMG 5 NE MOHAVE VALLEY 34.98N 114.53W
09/04/2009 MOHAVE AZ EMERGENCY MNGR

*** 8 INJ *** EMERGENCY MANAGER REPORTED THAT 20
RV/MOBILE HOMES DESTROYED AT HIGHWAY 95 AND AZTEC ROAD IN
FORT MOHAVE. EIGHT PEOPLE WERE INJURED WITH TWO SERIOUS.
TWO HOMES RECEIVED WATER/MUD DAMAGE. DAMAGE WAS INITIALLY
ESTIMATED AT 500,000 DOLLARS.


&&

$$

ASG

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DAY48SVR: Nws Storm Prediction Center Norman Ok

ACUS48 KWNS 050900
SWOD48
SPC AC 050859

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0359 AM CDT SAT SEP 05 2009

VALID 081200Z - 131200Z

...DISCUSSION...

THE GFS...ECMWF AND MREF ENSEMBLES REMAIN IN REASONABLE AGREEMENT
THROUGH DAY 5 WITH EVOLUTION OF UPPER TROUGH OVER THE NRN STATES.
ON DAY 4 MODELS INDICATE A SIGNIFICANT IMPULSE WILL MOVE THROUGH
BASE OF UPPER TROUGH OVER THE NRN PLAINS BEFORE EJECTING INTO SRN
CANADA EARLY DAY 5. AXIS OF MODEST LOW-LEVEL MOISTURE WILL PERSIST
IN WARM SECTOR AHEAD OF ATTENDANT FRONT. SOME THREAT FOR STRONG TO
SEVERE STORMS MAY EXIST DAY 4 INTO DAY 5 OVER THE NRN PLAINS INTO
THE UPPER MS VALLEY WITH STORMS DEVELOPING ALONG FRONT. STRONGER
VERTICAL SHEAR WILL LIKELY REMAIN POST FRONTAL...AND CONFIDENCE IN A
HIGHER END SEVERE EVENT IS NOT PARTICULARLY HIGH AT THIS TIME.

BEYOND DAY 6 MODELS BEGIN TO DIVERGE...BUT INDICATE OVERALL TREND
WILL BE FOR A TROUGH TO AMPLIFY OVER THE ERN U.S. AS AN UPSTREAM
IMPULSE DROPS SEWD INTO THE MEAN TROUGH POSITION.

..DIAL.. 09/05/2009

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KVEF [050834]: Preliminary Local Storm Report

NWUS55 KVEF 050834
LSRVEF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
133 AM PDT SAT SEP 05 2009

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

1115 PM HAIL GOLDEN VALLEY 35.22N 114.22W
09/04/2009 M1.75 INCH MOHAVE AZ AMATEUR RADIO

AN AMATEUR RADIO OPERATOR IN GOLDEN VALLEY REPORTED GOLF
BALL SIZED HAIL. THE HAIL BROKE ALL THE WEST WINDOWS OF
THE HOUSE...BROKE HIS WEATHER STATION...AND GOT ALL HIS
RADIO EQUIPMENT WET.

1115 PM TSTM WND GST GOLDEN VALLEY 35.22N 114.22W
09/04/2009 M67.00 MPH MOHAVE AZ AMATEUR RADIO

AMATEUR RADIO OPERATOR IN GOLDEN VALLEY REPORTED A WIND
GUST OF 67 MPH.


&&

$$

ASG

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KVEF [050743]: Preliminary Local Storm Report...corrected

NWUS55 KVEF 050743
LSRVEF

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE LAS VEGAS NV
1243 AM PDT SAT SEP 05 2009

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

1115 PM TSTM WND DMG 5 NE MOHAVE VALLEY 34.98N 114.53W
09/04/2009 MOHAVE AZ LAW ENFORCEMENT

*** 6 INJ *** 12 MOBILE HOME TRAILERS WERE BLOWN OVER. 5
PEOPLE RECEIVED MINOR INJURIES WITH ONE ELDERLY PERSON
SERIOUSLY INJURED.


&&

$$

ASG

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KVEF [050737]: Preliminary Local Storm Report

NWUS55 KVEF 050737
LSRVEF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1237 AM PDT SAT SEP 05 2009

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

1115 PM NON-TSTM WND DMG 5 NE MOHAVE VALLEY 34.98N 114.53W
09/04/2009 MOHAVE AZ LAW ENFORCEMENT

*** 6 INJ *** 12 MOBILE HOME TRAILERS WERE BLOWN OVER. 5
PEOPLE RECEIVED MINOR INJURIES WITH ONE ELDERLY PERSON
SERIOUSLY INJURED.


&&

$$

ASG

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DAY3SVR: Nws Storm Prediction Center Norman Ok

ACUS03 KWNS 050729
SWODY3
SPC AC 050726

DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0226 AM CDT SAT SEP 05 2009

VALID 071200Z - 081200Z

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...

NWRN U.S. BROAD UPPER TROUGH WILL REMAIN PROGRESSIVE AND CONTINUE
THROUGH THE NRN ROCKIES AND NRN PLAINS MONDAY. A COLD FRONT WILL
ACCOMPANY THIS FEATURE INTO THE DAKOTAS. FARTHER EAST A WEAK UPPER
TROUGH WILL PERSIST FROM THE GREAT LAKES SWD INTO THE SERN STATES.


...NRN PLAINS AREA...

SLY FLOW WILL STRENGTHEN IN ASSOCIATION WITH DEVELOPING LEE TROUGH
OVER THE CNTRL AND NRN HIGH PLAINS...BUT ELY TRAJECTORIES OVER THE
SRN STATES AND NRN GULF WILL LIMIT NWD RETURN OF RICHER LOW LEVEL
MOISTURE. DEWPOINTS IN THE 50S WILL LIKELY CHARACTERIZE PRE-FRONTAL
WARM SECTOR ACROSS THE DAKOTAS. AN EML WILL ADVECT EWD ABOVE THE
MODEST MOIST AXIS RESULTING IN 1000-1500 J/KG MLCAPE...BUT WITH A
CAP LIKELY INHIBITING CONVECTION MUCH OF THE DAY. DEEP FORCING
WITHIN FRONTAL ZONE AND DIABATIC WARMING SHOULD EVENTUALLY
CONTRIBUTE TO THUNDERSTORM INITIATION OVER THE WRN/CNTRL DAKOTAS.
STRONGER DEEP LAYER FLOW AND VERTICAL SHEAR WILL REMAIN POST FRONTAL
WITH SHEAR ALONG AND AHEAD OF THE FRONT GENERALLY SUPPORTIVE OF
MULTICELL STORMS. STEEP LAPSE RATES AND MODERATE INSTABILITY COULD
SUPPORT A THREAT OF HAIL AND GUSTY WINDS WITH THE STRONGER STORMS.
HOWEVER...AT THIS TIME THE ENVIRONMENT APPEARS MARGINAL FOR AN
ORGANIZED SEVERE EVENT.

..DIAL.. 09/05/2009

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KVEF [050721]: Preliminary Local Storm Report

NWUS55 KVEF 050721
LSRVEF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1221 AM PDT SAT SEP 05 2009

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

1100 PM TSTM WND DMG GOLDEN VALLEY 35.22N 114.22W
09/04/2009 MOHAVE AZ LAW ENFORCEMENT

SEVERAL MOBILE HOME TIPPED OVER AND BLOWN ACROSS THE
ROADWAY. WINDS WERE MEASURED IN GOLDEN VALLEY AT 61 MPH.

&&

$$

ASG

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KVEF [050655]: Preliminary Local Storm Report...corrected

NWUS55 KVEF 050655 CCA
LSRVEF

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE LAS VEGAS NV
1155 PM PDT FRI SEP 04 2009

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

0352 PM TSTM WND GST KINGMAN 35.21N 114.03W
09/04/2009 M64.00 MPH MOHAVE AZ ASOS

THUNDERSTORM WIND GUST FROM THE NORTHWEST OF 64 MPH
MEASURED AT THE KINGMAN AIRPORT.

0635 PM TSTM WND GST BULLHEAD CITY 35.15N 114.56W
09/04/2009 M55.00 MPH MOHAVE AZ AWOS

BULLHEAD CITY AWOS REPORTED A GUST OF 55 MPH FROM THE
SOUTHEAST.

1100 PM HAIL 3 WNW GOLDEN VALLEY 35.23N 114.27W
09/04/2009 E0.25 INCH MOHAVE AZ TRAINED SPOTTER

INTENSE HAIL STORM A FEW INCHES DEEP ON PATIO.

1100 PM TSTM WND GST 3 WNW GOLDEN VALLEY 35.23N 114.27W
09/04/2009 M61.00 MPH MOHAVE AZ TRAINED SPOTTER

61 MPH GUST CAUSED DAMAGED TO PATIO FURNITURE AND LIGHT
FIXTURES.


&&

$$

DMAKER

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KVEF [050640]: Preliminary Local Storm Report...corrected

NWUS55 KVEF 050640
LSRVEF

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE LAS VEGAS NV
1140 PM PDT FRI SEP 04 2009

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

0352 PM TSTM WND GST KINGMAN 35.21N 114.03W
09/04/2009 M64.00 MPH MOHAVE AZ ASOS

THUNDERSTORM WIND GUST FROM THE NORTHWEST OF 64 MPH
MEASURED AT THE KINGMAN AIRPORT.

0635 PM TSTM WND GST BULLHEAD CITY 35.15N 114.56W
09/04/2009 M55.00 MPH MOHAVE AZ AWOS

BULLHEAD CITY AWOS REPORTED A GUST OF 55 MPH FROM THE
SOUTHEAST.

1100 PM HAIL 3 WNW GOLDEN VALLEY 35.23N 114.27W
09/04/2009 E0.25 INCH MOHAVE AZ TRAINED SPOTTER

INTENSE HAIL STORM A FEW INCHES DEEP ON PATIO.

1100 PM TSTM WND GST 3 WNW GOLDEN VALLEY 35.23N 114.27W
09/04/2009 M0.00 MPH MOHAVE AZ TRAINED SPOTTER

61 MPH GUST CAUSED DAMAGED TO PATIO FURNITURE AND LIGHT
FIXTURES.


&&

$$

DMAKER

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DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 050530
SWODY2
SPC AC 050529

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1229 AM CDT SAT SEP 05 2009

VALID 061200Z - 071200Z

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...

THE UPPER TROUGH CURRENTLY MOVING INTO THE PACIFIC NW WILL CONTINUE
THROUGH THE NRN ROCKIES AND NRN HIGH PLAINS SUNDAY ACCOMPANIED BY A
COLD FRONT THAT WILL MOVE THROUGH MUCH OF MT THIS PERIOD. ELSEWHERE
THE PRIMARY BELT OF WLYS WILL REMAIN NORTH OF THE U.S. BORDER WITH
WEAK FLOW ALOFT OVER THE REST OF THE COUNTRY. WEAK TROUGH AXIS WILL
PERSIST FROM THE GREAT LAKES SWWD INTO THE TN VALLEY AREA. ANOTHER
WEAK SHORTWAVE TROUGH IS FORECAST TO MOVE THROUGH THE CNTRL AND SRN
ROCKIES.

...MT...

CIRCULATION AROUND HIGH PRESSURE ANCHORED OVER THE GREAT LAKES AND
OH VALLEY WILL MAINTAIN ELY TRAJECTORIES OVER THE SRN U.S. AND NRN
GULF...LIMITING ANY APPRECIABLE NWD RETURN OF LOW LEVEL MOISTURE.
DEWPOINTS IN THE 30S TO LOWER 40S WILL CHARACTERIZE THE WARM SECTOR
ACROSS WRN AND CNTRL MT WITH MLCAPE BELOW 500 J/KG DESPITE STEEP
LOW-MID LEVEL LAPSE RATES. THE BOUNDARY LAYER WILL REMAIN CAPPED BY
EWD ADVECTION OF THE EML MUCH OF THE DAY. HOWEVER...MESOSCALE LIFT
WITHIN FRONTAL ZONE AUGMENTED BY SHORTWAVE TROUGH EJECTING THROUGH
BASE OF UPPER TROUGH WILL LIKELY RESULT IN INITIATION OF A FEW
STORMS BY LATE AFTERNOON OR EVENING OVER WRN MT. STRENGTHENING
MID-UPPER FLOW ATTENDING THE APPROACHING TROUGH AND INVERTED-V
BOUNDARY LAYERS WILL SUPPORT A THREAT OF ISOLATED STRONG WIND GUSTS.
IT STILL APPEARS THAT MARGINAL INSTABILITY WILL PROBABLY SERVE AS A
LIMITING FACTOR FOR A MORE ROBUST SEVERE THREAT.

...ELSEWHERE...

SCATTERED STORMS WILL LIKELY ONCE AGAIN DEVELOP OVER THE SWRN U.S.
AND ACROSS PARTS OF THE LOWER MS AND TN VALLEY IN ASSOCIATION WITH
WEAK UPPER TROUGH. ISOLATED STORMS COULD PRODUCE STRONG GUSTY
WINDS...BUT WEAK FLOW ALOFT AND A MARGINAL THERMODYNAMIC ENVIRONMENT
WILL LIMIT POTENTIAL FOR AN ORGANIZED SEVERE EVENT.

..DIAL.. 09/05/2009

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 050512
SWODY1
SPC AC 050509

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1209 AM CDT SAT SEP 05 2009

VALID 051200Z - 061200Z

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...
IN MID-UPPER LEVELS...NRN STREAM PATTERN SHIFT IS UNDERWAY AS
BROAD/PERSISTENT CYCLONIC GYRE OVER GULF OF AK MOVES TOWARD NWRN PAC
NW AND BC COAST. BY 6/12Z...CENTER OF VORTEX STILL SHOULD BE
OFFSHORE...ALTHOUGH STG SHORTWAVE TROUGH WILL BE MOVING AROUND SERN
QUADRANT OF CYCLONE AND INLAND ACROSS WRN PORTIONS WA/ORE.
WEAKER/LEADING SHORTWAVE TROUGH -- NOW EVIDENT IN MOISTURE CHANNEL
IMAGERY OFFSHORE WA/ORE INVOF 133W -- IS FCST TO MOVE NEWD ACROSS
WA/ORE BETWEEN 5/18Z-6/06Z...DEAMPLIFYING AND REACHING W-CENTRAL AB
BY 6/12Z.

MEANWHILE...SMALL PERTURBATION AND INTERMITTENTLY CLOSED LOW -- NOW
OVER MO -- IS EXPECTED TO BECOME ISOLATED FROM NRN STREAM FLOW BELT
AS HEIGHTS RISE OVER GREAT LAKES...RESULTING IN ERRATIC DRIFT AND
LITTLE NET MOTION OF THIS FEATURE THROUGH PERIOD.

IN LOW LEVELS...DIFFUSE BAROCLINIC ZONE IS FCST TO BECOME
QUASISTATIONARY FROM OZARKS REGION GENERALLY WWD ACROSS NRN
OK...NNWWD ACROSS CENTRAL HIGH PLAINS...THEN NWWD AGAIN FROM WRN SD
ACROSS ERN MT AS WARM FRONT. THIS FEATURE WAS BETTER DEFINED AT
5/00Z IN 850/825 MB ANALYSES THAN AT SFC...WHERE NUMEROUS SMALLER
SCALE CONVECTIVE BOUNDARIES HAVE BECOME PREDOMINANT. FRONTAL ZONE
AND OUTFLOW BOUNDARIES WILL SUPPORT GEN TSTM POTENTIAL DAY-1 OVER
PORTIONS OZARKS...SRN PLAINS AND CENTRAL HIGH PLAINS...HOWEVER
AMBIENT FLOW/SHEAR WILL BE TOO WEAK FOR ORGANIZED SVR RISK. STG
LEESIDE TROUGHING...WITH ONE OR TWO EMBEDDED/MESOSCALE CYCLONES --
IS EXPECTED TODAY FROM SRN AB SEWD ACROSS WRN MT...AS AFOREMENTIONED
WARM FRONT LIFTS NWD OVER CENTRAL/ERN MT.

...SRN GREAT BASIN TO AZ...
WEAK MID-UPPER TROUGH NOW OVER SRN NV WILL HAVE EJECTED NEWD AWAY
FROM THIS AREA...LEAVING DIABATIC HEATING...ADEQUATE LOW LEVEL
MOISTURE FROM GULF OF CA INTRUSION...AND OROGRAPHIC FORCING AS
PRIMARY CONTRIBUTORS TO CONVECTIVE ENVIRONMENT OVER THIS AREA.
WIDELY SCATTERED TO SCATTERED TSTMS SHOULD DEVELOP...AT FIRST OVER
HIGHER TERRAIN...MOVING ERRATICALLY OVER LOWER ELEVATIONS WHERE
DEEP/WELL-MIXED BOUNDARY LAYERS WILL SUPPORT POTENTIAL FOR STG GUSTS
FROM SOME ACTIVITY. WEAK DEEP-LAYER FLOW IS FCST...INCLUDING LACK
OF ELY COMPONENT IN LOW-MIDDLE LEVELS TO ASSIST IN MOVING CONVECTION
OFF RIM MORE EXPEDITIOUSLY. THIS ALSO WILL YIELD VERY WEAK SHEAR
VIA ALMOST ANY LOW-LEVEL OR DEEP-LAYER MEASURE. THEREFORE...SVR
THREAT APPEARS MRGL AND SOMEWHAT DISORGANIZED ATTM.

...NRN ROCKIES REGION...
DEEP-LAYER ASCENT FCST TO SPREAD/DEVELOP NEWD ACROSS REGION THIS
AFTERNOON AHEAD OF EJECTING PAC NW TROUGH. ISOLATED STG TSTMS ARE
POSSIBLE WITHIN POTENTIAL CORRIDOR OF HIGH-BASED CONVECTION FORMING
THIS AFTERNOON OVER MOUNTAINS...AND MOVING NEWD ACROSS FOOTHILLS
TOWARD ADJOINING HIGH PLAINS. NEARLY UNIDIRECTIONAL DEEP-LAYER WIND
PROFILES AND PRESENCE OF MRGL SPEED SHEAR SUGGEST SOME POTENTIAL FOR
LINEAR/BOWING MODES OF HIGH-BASED TSTMS...WITH STG/ISOLATED SVR
GUSTS POSSIBLE. PRIMARY LIMITING FACTOR WILL BE LACK OF MORE ROBUST
MOISTURE. DESPITE ANTECEDENT WARM/MOIST ADVECTION BOOSTING THETAE
ABOVE VALUES FROM PREVIOUS DAY...NEAR AND S OF WARM FRONT...SFC DEW
POINTS SHOULD REACH ONLY 30S TO MID 40S F MOST AREAS E OF HIGHER
TERRAIN OVER CENTRAL/ERN MT. ACCORDINGLY MODIFIED SOUNDINGS YIELD
MLCAPE ONLY IN 100-400 J/KG RANGE.

..EDWARDS/HULRBUT.. 09/05/2009

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