KTBW [130106]: Preliminary Local Storm Report

NWUS52 KTBW 130106
LSRTBW

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
906 PM EDT TUE MAY 12 2009

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

0500 PM TORNADO 4 ENE LAKELAND 28.07N 81.91W
05/12/2009 POLK FL LAW ENFORCEMENT

NEAR INTERSECTION OF SMITHTOWN DR AND TERRY ROAD. 4-5
FOOT OAK TREE UPROOTED AND FELL ON CARPORT AND PART OF
HOUSE. ALSO HAD STURDY WOOD CARPORT LIFTED AND THROWN
INTO AN ALUMINUM CARPORT NEXT DOOR. REPORT RELAYED BY
POLK COUNTY SHERIFFS OFFICE. DEPUTY REPORTED A WITNESS
SAW THE POSSIBLE TORNADO BOUNCING UP AND DOWN ACROSS AREA
AND DAMAGE PATH CONFIRMS. TIME IS ESTIMATED BASED ON
RADAR.

&&

$$

RJS

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KLUB [130105]: Preliminary Local Storm Report

NWUS54 KLUB 130105
LSRLUB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LUBBOCK TX
804 PM CDT TUE MAY 12 2009

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

0804 PM TSTM WND GST 2 NNE CHILDRESS 34.45N 100.23W
05/12/2009 M65 MPH CHILDRESS TX MESONET

&&

EVENT NUMBER 00464

$$

ELLIS

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KAMA [130104]: Preliminary Local Storm Report

NWUS54 KAMA 130104
LSRAMA

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
804 PM CDT TUE MAY 12 2009

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

0803 PM HAIL 10 SW SAMNORWOOD 34.95N 100.41W
05/12/2009 E0.75 INCH COLLINGSWORTH TX PUBLIC

&&

EVENT NUMBER AMA01378

$$

SMB

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KLOX [130103]: Preliminary Local Storm Report

NWUS56 KLOX 130103
LSRLOX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OXNARD CA
602 PM PDT TUE MAY 12 2009

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

1252 AM NON-TSTM WND GST 6 NE PYRAMID LAKE 34.74N 118.72W
05/12/2009 M61.00 MPH LOS ANGELES CA ASOS

SUSTAINED NORTHWEST WINDS 40 MPH AT SANDBERG...ELEVATION
4521 FEET.

1137 AM NON-TSTM WND GST 6 SSW CASTAIC LAKE 34.57N 118.74W
05/12/2009 M57.00 MPH LOS ANGELES CA OTHER FEDERAL

SUSTAINED NORTHWEST WINDS OF 25 MPH AT WHITAKER
PEAK...ELEVATION 4120 FEET.

0438 PM NON-TSTM WND GST 12 WNW LANCASTER 34.73N 118.38W
05/12/2009 M58.00 MPH LOS ANGELES CA OTHER FEDERAL

SUSTAINED WEST WINDS 26 MPH AT POPPY PARK...2760 FEET.

&&

$$

HALL

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KLUB [130059]: Preliminary Local Storm Report

NWUS54 KLUB 130059
LSRLUB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LUBBOCK TX
758 PM CDT TUE MAY 12 2009

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

0758 PM HAIL 3 S NORTHFIELD 34.24N 100.60W
05/12/2009 E0.75 INCH MOTLEY TX PUBLIC

&&

EVENT NUMBER 00463

$$

ELLIS

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KAMA [130049]: Preliminary Local Storm Report

NWUS54 KAMA 130049
LSRAMA

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
749 PM CDT TUE MAY 12 2009

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

0748 PM HAIL 1 NE HEDLEY 34.88N 100.65W
05/12/2009 E1.75 INCH DONLEY TX PUBLIC

0748 PM TSTM WND GST 1 NE HEDLEY 34.88N 100.65W
05/12/2009 E65 MPH DONLEY TX PUBLIC

&&

EVENT NUMBER AMA01376
EVENT NUMBER AMA01377

$$

SMB

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KLUB [130047]: Preliminary Local Storm Report...corrected

NWUS54 KLUB 130047
LSRLUB

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE LUBBOCK TX
747 PM CDT TUE MAY 12 2009

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

0741 PM TSTM WND GST 2 NW CHILDRESS 34.44N 100.27W
05/12/2009 M60 MPH CHILDRESS TX ASOS

&&

CORRECTED EVENT

EVENT NUMBER 00462

$$

FB

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KLUB [130046]: Preliminary Local Storm Report

NWUS54 KLUB 130046
LSRLUB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LUBBOCK TX
746 PM CDT TUE MAY 12 2009

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

0741 PM NON-TSTM WND GST 2 NW CHILDRESS 34.44N 100.27W
05/12/2009 M60 MPH CHILDRESS TX ASOS

&&

EVENT NUMBER 00462

$$

FB

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KJAN [130045]: Preliminary Local Storm Report

NWUS54 KJAN 130045
LSRJAN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
745 PM CDT TUE MAY 12 2009

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

0735 PM HAIL 2 E SILVER CREEK 31.60N 89.97W
05/12/2009 E0.88 INCH JEFFERSON DAVIS MS PUBLIC

NICKEL SIZE HAIL REPORTED NEAR HIGHWAY 84 AT THE BORDER
OF JEFFERSON DAVIS AND LAWRENCE COUNTIES.

&&

$$

JFAIRLY

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KAMA [130043]: Preliminary Local Storm Report

NWUS54 KAMA 130043
LSRAMA

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
743 PM CDT TUE MAY 12 2009

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

0743 PM HAIL 1 SW HEDLEY 34.86N 100.67W
05/12/2009 E0.88 INCH DONLEY TX PUBLIC

&&

EVENT NUMBER AMA01375

$$

SMB

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KMAF [130042]: Preliminary Local Storm Report

NWUS54 KMAF 130042
LSRMAF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
742 PM CDT TUE MAY 12 2009

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

0733 PM HAIL 5 W SNYDER 32.71N 101.00W
05/12/2009 E0.88 INCH SCURRY TX PUBLIC

WEST OF SNYDER ON US 180.

&&

$$

DHENNIG

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KUNR [130042]: Preliminary Local Storm Report

NWUS53 KUNR 130042
LSRUNR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
641 PM MDT TUE MAY 12 2009

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

0635 PM HAIL 9 S WHITE RIVER 43.44N 100.74W
05/12/2009 E1.00 INCH MELLETTE SD PUBLIC

&&

$$

MERICKSO

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KAMA [130040]: Preliminary Local Storm Report

NWUS54 KAMA 130040
LSRAMA

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
740 PM CDT TUE MAY 12 2009

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

0739 PM HAIL 6 S HEDLEY 34.78N 100.66W
05/12/2009 E0.75 INCH DONLEY TX PUBLIC

0739 PM TSTM WND GST 6 S HEDLEY 34.78N 100.66W
05/12/2009 E60 MPH DONLEY TX PUBLIC

&&

EVENT NUMBER AMA01373
EVENT NUMBER AMA01374

$$

SMB

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KLBF [130038]: Preliminary Local Storm Report

NWUS53 KLBF 130038
LSRLBF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
738 PM CDT TUE MAY 12 2009

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

0734 PM HAIL 15 S MULLEN 41.82N 101.04W
05/12/2009 E1.75 INCH HOOKER NE CO-OP OBSERVER

A FEW QUARTER AND GOLF BALL SIZE HAIL STONES WERE
REPORTED IN THE VICINITY OF A DISSIPATED TORNADO NEAR
HIGHWAY 97 AND THE DISMAL RIVER.

&&

$$

JSWEET

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KAMA [130037]: Preliminary Local Storm Report

NWUS54 KAMA 130037
LSRAMA

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
737 PM CDT TUE MAY 12 2009

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

0730 PM HAIL CLARENDON 34.94N 100.89W
05/12/2009 E0.88 INCH DONLEY TX FIRE DEPT/RESCUE

&&

EVENT NUMBER AMA01372

$$

JOHNSON

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KLBF [130036]: Preliminary Local Storm Report

NWUS53 KLBF 130036
LSRLBF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
736 PM CDT TUE MAY 12 2009

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

0734 PM TORNADO 15 S MULLEN 41.82N 101.04W
05/12/2009 HOOKER NE CO-OP OBSERVER

A TORNADO HAS DISSIPATED 1 MILE WEST OF HIGHWAY 97 AT THE
DISMAL RIVER CROSSING.

&&

$$

JSWEET

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KJAN [130031]: Preliminary Local Storm Report

NWUS54 KJAN 130031
LSRJAN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
731 PM CDT TUE MAY 12 2009

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

0720 PM TSTM WND DMG 10 NE TILTON 31.52N 89.90W
05/12/2009 JEFFERSON DAVIS MS LAW ENFORCEMENT

TREE BLOWN DOWN ON A POWERLINE AND CAUGHT ON FIRE IN
OAKVALE.

&&

$$

JFAIRLY

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KLBF [130028]: Preliminary Local Storm Report

NWUS53 KLBF 130028
LSRLBF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
728 PM CDT TUE MAY 12 2009

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

0409 PM TORNADO 15 S MULLEN 41.82N 101.04W
05/12/2009 HOOKER NE CO-OP OBSERVER

0721 PM TORNADO 15 S MULLEN 41.82N 101.04W
05/12/2009 HOOKER NE CO-OP OBSERVER

A TORNADOO WAS SPOTTED ON THE GROUND WITH DEBRI VISIBLE.

&&

$$

JSWEET

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KCYS [130024]: Preliminary Local Storm Report

NWUS55 KCYS 130024
LSRCYS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
624 PM MDT TUE MAY 12 2009

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

0510 PM DOWNBURST CHADRON AIRPORT 42.84N 103.10W
05/12/2009 DAWES NE ASOS

WIND GUST OF 60 MPH.

0543 PM DOWNBURST SCOTTSBLUFF AIRPORT 41.87N 103.60W
05/12/2009 SCOTTS BLUFF NE ASOS

WIND GUST OF 67 MPH. SOME POWER LINES KNOCKED DOWN.

&&

$$

REMANUEL

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KJAN [130024]: Preliminary Local Storm Report

NWUS54 KJAN 130024
LSRJAN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
724 PM CDT TUE MAY 12 2009

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

0635 PM TSTM WND DMG ITTA BENA 33.50N 90.32W
05/12/2009 LEFLORE MS EMERGENCY MNGR

THREE TREES BLOWN DOWN.

&&

$$

JFAIRLY

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KABR [130019]: Preliminary Local Storm Report

NWUS53 KABR 130019
LSRABR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
718 PM CDT TUE MAY 12 2009

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

0710 PM HAIL 11 E LANTRY 45.02N 101.19W
05/12/2009 E1.00 INCH DEWEY SD TRAINED SPOTTER

TRAINED SPOTTER IN EAGLE BUTTE REPORTS QUARTER SIZE HAIL.

&&

$$

KGILLE

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KMAF [130019]: Preliminary Local Storm Report

NWUS54 KMAF 130019
LSRMAF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
719 PM CDT TUE MAY 12 2009

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

0706 PM HAIL 2 SW KNAPP 32.61N 101.15W
05/12/2009 E1.25 INCH SCURRY TX CO-OP OBSERVER

NICKEL TO HALF DOLLAR HAIL

&&

$$

MSCHULDT

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KLBF [130018]: Preliminary Local Storm Report

NWUS53 KLBF 130018
LSRLBF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
718 PM CDT TUE MAY 12 2009

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

0717 PM FUNNEL CLOUD 15 S MULLEN 41.82N 101.04W
05/12/2009 HOOKER NE CO-OP OBSERVER

FUNNEL REACHED THREE QUARTERS OF THE WAY TO THE GROUND.

&&

$$

CBUTTLER

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WATCHES: Severe Thunderstorm Watch Number 291

WWUS20 KWNS 130010
SEL1
SPC WW 130010
NEZ000-SDZ000-130600-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 291
NWS STORM PREDICTION CENTER NORMAN OK
710 PM CDT TUE MAY 12 2009

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

CENTRAL AND NORTH CENTRAL NEBRASKA
CENTRAL SOUTH DAKOTA

EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 710 PM
UNTIL 100 AM CDT.

HAIL TO 2 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 60
STATUTE MILES EAST AND WEST OF A LINE FROM 10 MILES EAST OF NORTH
PLATTE NEBRASKA TO 40 MILES NORTHWEST OF ABERDEEN SOUTH DAKOTA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU1).

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 289...WW 290...

DISCUSSION...ONGOING SEVERE STORMS/SUPERCELLS FROM CENTRAL SD INTO
CENTRAL NEB WILL LIKELY CONTINUE THROUGH EARLY TONIGHT IN ADVANCE OF
A STRONG MID LEVEL TROUGH AND ASSOCIATED SURFACE COLD FRONT. STEEP
MID LEVEL LAPSE RATES AND 0-6 KM BULK SHEAR OF 45-60 KT WILL SUPPORT
A CONTINUED THREAT FOR SUPERCELLS AND SMALL BOWS AS THE BELT OF
ASCENT SPREADS FROM W TO E ACROSS SD AND NRN NEB...DESPITE SOMEWHAT
LIMITED MOISTURE.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 27035.

...THOMPSON

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KAMA [130009]: Preliminary Local Storm Report

NWUS54 KAMA 130009
LSRAMA

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
709 PM CDT TUE MAY 12 2009

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

0630 PM TSTM WND GST 4 S CANYON 34.92N 101.92W
05/12/2009 M61 MPH RANDALL TX BROADCAST MEDIA

WIND MEASURED ON CAR MOUNTED ANEMOMETER AT INTERSTATE
27 AND HUNGATE ROAD

&&

EVENT NUMBER AMA01371

$$

JOHNSON

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KBYZ [130008]: Preliminary Local Storm Report

NWUS55 KBYZ 130008
LSRBYZ

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
607 PM MDT TUE MAY 12 2009

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

0553 PM HAIL 6 ENE POMPEYS PILLAR 46.03N 107.83W
05/12/2009 M1.00 INCH YELLOWSTONE MT LAW ENFORCEMENT

ALONG INTERSTATE 94

&&

$$

SOLUM

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KUNR [130005]: Preliminary Local Storm Report

NWUS53 KUNR 130005
LSRUNR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
605 PM MDT TUE MAY 12 2009

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

0525 PM HAIL 4 ESE FAITH 44.99N 101.96W
05/12/2009 E1.00 INCH ZIEBACH SD TRAINED SPOTTER

&&

$$

MERICKSO

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KPIH [130002]: Preliminary Local Storm Report

NWUS55 KPIH 130002
LSRPIH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO
602 PM MDT TUE MAY 12 2009

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

0558 PM NON-TSTM WND DMG REXBURG 43.83N 111.79W
05/12/2009 MADISON ID LAW ENFORCEMENT

MADISON COUNTY POLICE DEPUTY REPORTS TWO SEPERATE
INCIDENCES OF POWER LINES DOWN ON TREES DUE TO HIGH WINDS
- BLOWING DUST REDUCING VISIBILTIES TO A MILE OR LESS.

&&

$$

PANGEL

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KLUB [130000]: Preliminary Local Storm Report

NWUS54 KLUB 130000
LSRLUB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LUBBOCK TX
659 PM CDT TUE MAY 12 2009

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

0658 PM HAIL 1 ENE TURKEY 34.40N 100.88W
05/12/2009 E1.75 INCH HALL TX STORM CHASER

&&

EVENT NUMBER 00461

$$

FB

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KLUB [122358]: Preliminary Local Storm Report

NWUS54 KLUB 122358
LSRLUB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LUBBOCK TX
658 PM CDT TUE MAY 12 2009

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

0656 PM HAIL 1 SSE TURKEY 34.38N 100.89W
05/12/2009 E0.88 INCH HALL TX STORM CHASER

&&

EVENT NUMBER 00460

$$

FB

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KJAN [122356]: Preliminary Local Storm Report

NWUS54 KJAN 122356
LSRJAN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
655 PM CDT TUE MAY 12 2009

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

0635 PM HAIL SCHLATER 33.64N 90.35W
05/12/2009 E0.25 INCH LEFLORE MS EMERGENCY MNGR

&&

$$

BRYANT

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KUNR [122351]: Preliminary Local Storm Report

NWUS53 KUNR 122351
LSRUNR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
551 PM MDT TUE MAY 12 2009

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

0550 PM HAIL DUPREE 45.05N 101.59W
05/12/2009 E1.00 INCH ZIEBACH SD CO-OP OBSERVER

&&

$$

MERICKSO

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KMAF [122349]: Preliminary Local Storm Report

NWUS54 KMAF 122349
LSRMAF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
647 PM CDT TUE MAY 12 2009

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

0628 PM HAIL 4 W BIG SPRING 32.25N 101.55W
05/12/2009 E0.88 INCH HOWARD TX LAW ENFORCEMENT

INTERSTATE 20 AT MILE MARKER 172.

&&

$$

MICHELLE.SCHULDT

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MESO: Mesoscale Discussion 0806

ACUS11 KWNS 122339
SWOMCD
SPC MCD 122338
ALZ000-MSZ000-130115-

MESOSCALE DISCUSSION 0806
NWS STORM PREDICTION CENTER NORMAN OK
0638 PM CDT TUE MAY 12 2009

AREAS AFFECTED...PARTS OF NRN/CNTRL MS...AL

CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY

VALID 122338Z - 130115Z

SOUTH OF THE STRONGER MID/UPPER WESTERLIES...A 30-40 KT 500 MB SPEED
MAXIMUM APPEARS TO BE CONTRIBUTING TO MAINTENANCE OF A SUSTAINED
SMALL...BUT ORGANIZED MESOSCALE CONVECTIVE SYSTEM. THIS ACTIVITY
APPEARS TO BE SUPPORTED BY WEAK TO MODERATE INSTABILITY ALONG AND TO
THE NORTH OF A REMNANT SURFACE FRONTAL ZONE EXTENDING ACROSS CENTRAL
MISSISSIPPI INTO SOUTH CENTRAL ALABAMA. DESPITE THE WEAKNESS OF THE
LOW-LEVEL FLOW...AN EASTERLY COMPONENT TO THE NORTH OF THE FRONT IS
CONTRIBUTING TO MODEST DEEP LAYER SHEAR AND SYSTEM RELATIVE INFLOW.
FAVORABLE MID-LEVEL FORCING AND STORM-SCALE DYNAMICS COULD SLOW THE
DEMISE OF THE CONVECTIVE SYSTEM THIS EVENING...DESPITE THE ONSET OF
BOUNDARY LAYER COOLING. GIVEN THERMODYNAMIC PROFILES WITH RATHER
MODEST LAPSE RATES...CONVECTION IS EXPECTED TO REMAIN MOSTLY
SUB-SEVERE. BUT...SOME HAIL AND GUSTY WINDS COULD AFFECT THE
STARKVILLE/COLUMBUS MS AREAS BY AROUND 02Z ...AND PERHAPS
TUSCALOOSA/BIRMINGHAM AL DURING THE 03-05Z.

..KERR.. 05/12/2009

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

ATTN...WFO...BMX...HUN...MEG...JAN...

LAT...LON 34288941 34258850 34008726 33758664 32948650 32538728
32528808 32648899 33048998 34288941

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KAMA [122337]: Preliminary Local Storm Report

NWUS54 KAMA 122337
LSRAMA

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
637 PM CDT TUE MAY 12 2009

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

0635 PM TSTM WND GST 17 SE CANYON 34.81N 101.71W
05/12/2009 E60 MPH RANDALL TX PUBLIC

0635 PM HAIL 17 SE CANYON 34.81N 101.71W
05/12/2009 E1.00 INCH RANDALL TX PUBLIC

&&

EVENT NUMBER AMA0901284
EVENT NUMBER AMA0901285

$$

SMB

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KLUB [122329]: Preliminary Local Storm Report

NWUS54 KLUB 122329
LSRLUB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LUBBOCK TX
628 PM CDT TUE MAY 12 2009

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

0623 PM HAIL 4 SSE HAPPY 34.69N 101.83W
05/12/2009 E1.25 INCH SWISHER TX STORM CHASER

&&

EVENT NUMBER 00459

$$

ELLIS

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KLUB [122328]: Preliminary Local Storm Report

NWUS54 KLUB 122328
LSRLUB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LUBBOCK TX
628 PM CDT TUE MAY 12 2009

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

0620 PM NON-TSTM WND GST 2 ENE TULIA 34.55N 101.74W
05/12/2009 M59 MPH SWISHER TX MESONET

&&

EVENT NUMBER 00458

$$

FB

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KAMA [122326]: Preliminary Local Storm Report

NWUS54 KAMA 122326
LSRAMA

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
626 PM CDT TUE MAY 12 2009

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

0620 PM HAIL 16 S CANYON 34.75N 101.92W
05/12/2009 E1.00 INCH RANDALL TX TRAINED SPOTTER

QUARTER SIZE HAIL REPORTED ON NORTH SIDE OF HAPPY ON
SWISHER AND RANDALL COUNTY LINE

&&

EVENT NUMBER AMA01368

$$

JOHNSON

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KICT [122323]: Preliminary Local Storm Report...summary

NWUS53 KICT 122323
LSRICT

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE WICHITA KS
623 PM CDT TUE MAY 12 2009

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

0957 AM HAIL 1 S PERTH 37.16N 97.49W
05/12/2009 E1.00 INCH SUMNER KS TRAINED SPOTTER

MOSTLY PEA SIZE WITH A FEW UP TO QUARTER SIZE.

1020 AM HAIL 10 S WELLINGTON 37.13N 97.40W
05/12/2009 E0.75 INCH SUMNER KS LAW ENFORCEMENT

1041 AM HAIL 3 SE WELLINGTON 37.24N 97.36W
05/12/2009 E0.75 INCH SUMNER KS TRAINED SPOTTER

1052 AM HAIL 2 E ROSE HILL 37.57N 97.10W
05/12/2009 M1.00 INCH BUTLER KS EMERGENCY MNGR

1105 AM HAIL 4 W WINFIELD 37.27N 97.04W
05/12/2009 E0.88 INCH COWLEY KS AMATEUR RADIO

1108 AM FLOOD WINFIELD 37.27N 96.97W
05/12/2009 COWLEY KS TRAINED SPOTTER

SPOTTER REPORTING 6 TO 8 INCHES OVER THE 160 NEAR
WINFIELD.

1145 AM HAIL 4 W WINFIELD 37.27N 97.04W
05/12/2009 E0.75 INCH COWLEY KS TRAINED SPOTTER

1151 AM HAIL 8 NNW CEDAR VALE 37.22N 96.57W
05/12/2009 M0.50 INCH COWLEY KS TRAINED SPOTTER

1151 AM HAIL 8 NNW CEDAR VALE 37.22N 96.57W
05/12/2009 M1.00 INCH COWLEY KS TRAINED SPOTTER

COVERING THE ENTIRE GROUND.

1155 AM HAIL 8 NNW CEDAR VALE 37.22N 96.57W
05/12/2009 E1.00 INCH COWLEY KS TRAINED SPOTTER

HAIL COVERING THE GROUND MORE THAN ONE INCH DEEP. THE
GROUND IS WHITE.

1212 PM HAIL 9 NE CEDAR VALE 37.20N 96.39W
05/12/2009 E1.00 INCH CHAUTAUQUA KS PUBLIC

1214 PM HAIL 9 NE CEDAR VALE 37.20N 96.39W
05/12/2009 E1.00 INCH CHAUTAUQUA KS PUBLIC

1215 PM HAIL 3 NE DOUGLASS 37.55N 96.97W
05/12/2009 E0.75 INCH BUTLER KS PUBLIC

1221 PM HAIL 7 NW SEDAN 37.20N 96.27W
05/12/2009 E0.75 INCH CHAUTAUQUA KS LAW ENFORCEMENT

1232 PM HAIL 5 E AUGUSTA 37.69N 96.88W
05/12/2009 E0.75 INCH BUTLER KS LAW ENFORCEMENT

1258 PM HAIL CEDAR VALE 37.11N 96.50W
05/12/2009 E0.75 INCH CHAUTAUQUA KS TRAINED SPOTTER

0149 PM HAIL SEDAN 37.13N 96.18W
05/12/2009 E1.00 INCH CHAUTAUQUA KS LAW ENFORCEMENT

0205 PM HEAVY RAIN SEDAN 37.13N 96.18W
05/12/2009 M1.04 INCH CHAUTAUQUA KS TRAINED SPOTTER

RAINFALL WAS IN PAST 30 MINUTES.

0215 PM HAIL HALE 37.23N 96.02W
05/12/2009 E0.88 INCH CHAUTAUQUA KS CO-OP OBSERVER

0215 PM HAIL HAVANA 37.09N 95.94W
05/12/2009 E0.75 INCH MONTGOMERY KS TRAINED SPOTTER

0216 PM HAIL INDEPENDENCE 37.23N 95.71W
05/12/2009 E0.75 INCH MONTGOMERY KS LAW ENFORCEMENT

0220 PM FLOOD LONGTON 37.38N 96.08W
05/12/2009 ELK KS LAW ENFORCEMENT

WATER COVERING HIGHWAY 160 EAST AND OAK VALLEY ROAD

0220 PM HEAVY RAIN HALE 37.23N 96.02W
05/12/2009 M3.00 INCH CHAUTAUQUA KS TRAINED SPOTTER

RAINFALL TOTAL SINCE 11 AM

0430 PM FLOOD INDEPENDENCE 37.23N 95.71W
05/12/2009 MONTGOMERY KS EMERGENCY MNGR

SOME REPORTS OF 2 TO 4 INCHES OF RAIN IN AN HOUR THROUGH
OUT THE COUNTY...COUNTY ROADS FLOODED...LOW WATER
CROSSINGS AS WELL.

&&

$$

JMB

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KLUB [122318]: Preliminary Local Storm Report

NWUS54 KLUB 122318
LSRLUB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LUBBOCK TX
618 PM CDT TUE MAY 12 2009

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

0617 PM HAIL HAPPY 34.74N 101.86W
05/12/2009 E1.00 INCH SWISHER TX FIRE DEPT/RESCUE

&&

EVENT NUMBER 00457

$$

ELLIS

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KUNR [122315]: Preliminary Local Storm Report

NWUS53 KUNR 122315
LSRUNR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
515 PM MDT TUE MAY 12 2009

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

0515 PM TSTM WND GST 12 E OPAL 44.91N 102.37W
05/12/2009 E60 MPH MEADE SD TRAINED SPOTTER

&&

$$

MERICKSO

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KUNR [122311]: Preliminary Local Storm Report

NWUS53 KUNR 122311
LSRUNR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
511 PM MDT TUE MAY 12 2009

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

0511 PM TSTM WND GST 10 E MAURINE 45.04N 102.39W
05/12/2009 E60 MPH MEADE SD TRAINED SPOTTER

&&

$$

MERICKSO

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KUNR [122306]: Preliminary Local Storm Report

NWUS53 KUNR 122306
LSRUNR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
506 PM MDT TUE MAY 12 2009

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

0445 PM TSTM WND GST 11 SSE ZEONA 45.04N 102.83W
05/12/2009 E60 MPH PERKINS SD PUBLIC

&&

$$

MERICKSO

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MESO: Mesoscale Discussion 0805

ACUS11 KWNS 122255
SWOMCD
SPC MCD 122254
SDZ000-NDZ000-130030-

MESOSCALE DISCUSSION 0805
NWS STORM PREDICTION CENTER NORMAN OK
0554 PM CDT TUE MAY 12 2009

AREAS AFFECTED...THE DAKOTAS

CONCERNING...SEVERE THUNDERSTORM WATCH 289...

VALID 122254Z - 130030Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 289
CONTINUES.

ADDITIONAL CENTRAL SOUTH DAKOTA COUNTIES MAY NEED TO BE LOCALLY
ADDED TO WATCH WITHIN THE NEXT HOUR OR SO

A SMALL BUT PROMINENT EASTWARD ACCELERATING STORM CLUSTER HAS
EVOLVED OUT OF A PRE-FRONTAL HIGH PLAINS SUPERCELL. THIS APPEARS TO
BE AIDED BY STRONG AND FOCUSED FORCING IN THE EXIT REGION OF A 50-70
KT WESTERLY 500 MB JET STREAK EMANATING FROM THE NORTHERN
INTERMOUNTAIN REGION. THIS FORCING...COUPLED WITH WARM ADVECTION ON
THE NOSE OF A LOWER/MID TROPOSPHERIC THERMAL RIDGE ACROSS THE
PLAINS...IS EXPECTED TO SUSTAIN CONVECTIVE DEVELOPMENT ACROSS
NORTHERN SOUTH DAKOTA AND SOUTHERN NORTH DAKOTA WELL INTO THE
EVENING HOURS. LOW-LEVEL AMBIENT FLOW IS WEAK...BUT WITH AN
EASTERLY COMPONENT SYSTEM RELATIVE INFLOW MAY BE AS STRONG AS 50-60
KT...WHICH COULD AID THE EVOLUTION OF AN EXPANDING AND INCREASINGLY
ORGANIZED MESOSCALE CONVECTIVE SYSTEM...AS ACTIVITY ADVANCES INTO AN
INCREASINGLY MOIST LOW-LEVEL ENVIRONMENT DEEPER INTO THE PLAINS.
LARGE HAIL MAY ACCOMPANY STRONGER CELLS...BUT THE PRIMARY SEVERE
THREAT MAY BE VERY STRONG/DAMAGING SURFACE GUSTS WHICH COULD IMPACT
BISMARCK/MOBRIDGE...PERHAPS PIERRE BY/SHORTLY AFTER 01Z.

..KERR.. 05/12/2009

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

ATTN...WFO...ABR...BIS...UNR...

LAT...LON 45940224 46720185 47310108 47450056 46759950 45949952
45089963 44549973 44310023 44460087 44530153 45030224
45940224

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KBIS [122246]: Preliminary Local Storm Report

NWUS53 KBIS 122246
LSRBIS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
546 PM CDT TUE MAY 12 2009

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

0543 PM HAIL 18 S MINOT 47.97N 101.30W
05/12/2009 M0.88 INCH WARD ND BROADCAST MEDIA

ESTIMATED WIND GUST TO 55 MPH.

&&

$$

VROLLER

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WATCHES: Severe Thunderstorm Watch Number 290

WWUS20 KWNS 122242
SEL0
SPC WW 122242
TXZ000-130400-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 290
NWS STORM PREDICTION CENTER NORMAN OK
540 PM CDT TUE MAY 12 2009

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

THE SOUTHEAST TEXAS PANHANDLE INTO WEST CENTRAL TEXAS

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 540 PM UNTIL
1100 PM CDT.

HAIL TO 2 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 45
STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES NORTH
NORTHWEST OF CHILDRESS TEXAS TO 40 MILES SOUTHWEST OF SAN ANGELO
TEXAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).

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 289...

DISCUSSION...HIGH-BASED CONVECTION IN THE DEEPLY MIXED ENVIRONMENT
ALONG AND W OF THE DRYLINE MAY SPREAD E FAR ENOUGH TO REACH SOMEWHAT
RICHER MOISTURE AND STRONGER INSTABILITY NEAR THE CAPROCK THIS
EVENING. VERY STEEP MID LEVEL LAPSE RATES AND MODEST DEEP LAYER
VERTICAL SHEAR IN ADVANCE OF A WEAK MID LEVEL WAVE EJECTING NEWD
FROM SE NM COULD SUPPORT A FEW SUPERCELLS WITH LARGE HAIL/DAMAGING
WINDS...AND CONVECTION MAY EVOLVE INTO ONE OR TWO SMALL CLUSTERS
EARLY TONIGHT. THE EWD EXTENT OF THE SEVERE THREAT WILL BE LIMITED
BY STRONG CONVECTIVE INHIBITION AFTER SUNSET.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 27020.

...THOMPSON

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KTSA [122237]: Preliminary Local Storm Report

NWUS54 KTSA 122237
LSRTSA

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
536 PM CDT TUE MAY 12 2009

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

0534 PM HAIL PRAIRIE GROVE 35.98N 94.32W
05/12/2009 E0.75 INCH WASHINGTON AR PUBLIC

&&

$$

MEB

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KUNR [122233]: Preliminary Local Storm Report

NWUS53 KUNR 122233
LSRUNR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
433 PM MDT TUE MAY 12 2009

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

0420 PM TSTM WND GST 28 NE NEWELL 45.00N 103.01W
05/12/2009 E60 MPH BUTTE SD PUBLIC

&&

$$

MERICKSO

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KJAN [122229]: Preliminary Local Storm Report

NWUS54 KJAN 122229
LSRJAN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
529 PM CDT TUE MAY 12 2009

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

0523 PM HAIL 5 SW BROOKLYN 31.00N 89.25W
05/12/2009 E0.75 INCH FORREST MS FIRE DEPT/RESCUE

PENNY SIZE HAIL IN THE CARNES COMMUNITY

&&

$$

JFAIRLY

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KMOB [122226]: Preliminary Local Storm Report

NWUS54 KMOB 122226
LSRMOB

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
526 PM CDT TUE MAY 12 2009

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

0455 PM HAIL 2 S WIGGINS 30.83N 89.14W
05/12/2009 E1.00 INCH STONE MS PUBLIC

REPORT FROM CONVENIENCE STORE EMPLOYEE

&&

$$

DONF

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KOUN [121409]: Preliminary Local Storm Report

NWUS54 KOUN 121409
LSROUN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
909 AM CDT TUE MAY 12 2009

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

0838 AM HAIL NEWCASTLE 35.25N 97.60W
05/12/2009 E0.88 INCH MCCLAIN OK PUBLIC

&&

$$

CRILEY

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KOUN [121408]: Preliminary Local Storm Report

NWUS54 KOUN 121408
LSROUN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
908 AM CDT TUE MAY 12 2009

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

0850 AM HAIL 3 SW MOORE 35.31N 97.52W
05/12/2009 M0.88 INCH CLEVELAND OK PUBLIC

REPORTED AT 155TH AND WESTERN

&&

$$

CRILEY

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KOUN [121406]: Preliminary Local Storm Report

NWUS54 KOUN 121406
LSROUN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
906 AM CDT TUE MAY 12 2009

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

0745 AM HAIL 2 N NORMAN 35.25N 97.44W
05/12/2009 E2.00 INCH CLEVELAND OK PUBLIC

REPORTED AT PORTER AND ROCK CREEK RD

&&

$$

CRILEY

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KPAH [121354]: Preliminary Local Storm Report

NWUS53 KPAH 121354
LSRPAH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
853 AM CDT TUE MAY 12 2009

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

1120 AM TORNADO 2 W MCBRIDE 37.83N 89.88W
05/08/2009 PERRY MO NWS STORM SURVEY

PATH VISIBLE IN WHEAT FIELD ALONG COUNTY ROAD 934. DOZENS
OF TREES DOWN NEAR THE PATH...APPARENTLY DUE TO INFLOW
WINDS. TORNADO CLASSIFIED AS EF0 WITH A PEAK WIND OF 65
MPH. PATH LENGTH WAS 2.2 MILES WITH AN AVERAGE PATH WIDTH
OF 50 YARDS. EVENT TIME IS RADAR ADJUSTED.

1030 AM TSTM WND DMG DONIPHAN 36.62N 90.82W
05/08/2009 RIPLEY MO NWS STORM SURVEY

EXTENSIVE TREE DAMAGE ACROSS THE PATH IN ADDITION TO
STRUCTURAL DAMAGE TO THE RIPLEY COUNTY COURTHOUSE PARTIAL
ROOF LOSS/DAMAGE AND LOSS OF NEARLY ENTIRE ROOF STRUCTURE
OF A NEARBY COMMERCIAL BUSINESS. WINDS WERE MEASURED AT
79 MPH AT THE DONIPHAN FIRE DEPT. AND PEAK WIND ESTIMATED
AT 90 MPH BY THE NWS SURVEY TEAM AT THE DAMAGE SITES OF
THE RIPLEY COUNTY COURTHOUSE AND NEARBY BUSINESS. AVERAGE
PATH WIDTH WAS 5.5 MILES WITH PATH LENGTH 19 MPH FROM
OREGON...RIPLEY COUNTY LINE EAST TO DONIPHAN.

&&

$$

SMITH

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KOUN [121335]: Preliminary Local Storm Report

NWUS54 KOUN 121335
LSROUN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
835 AM CDT TUE MAY 12 2009

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

0827 AM HAIL 1 S DALE 35.37N 97.05W
05/12/2009 E1.00 INCH POTTAWATOMIE OK EMERGENCY MNGR

REPORTED AT I-40 AND HWY 102N

&&

$$

CRILEY

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KOUN [121307]: Preliminary Local Storm Report

NWUS54 KOUN 121307
LSROUN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
807 AM CDT TUE MAY 12 2009

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

0737 AM HAIL 3 WNW NORMAN 35.24N 97.49W
05/12/2009 E1.50 INCH CLEVELAND OK NWS EMPLOYEE

0745 AM HAIL NORMAN 35.22N 97.44W
05/12/2009 E1.75 INCH CLEVELAND OK OTHER FEDERAL

REPORTED AT AIRPORT

0747 AM HAIL NORMAN 35.22N 97.44W
05/12/2009 E1.00 INCH CLEVELAND OK PUBLIC

NORTH SIDE OF DOWNTOWN

0750 AM HAIL NORMAN 35.22N 97.44W
05/12/2009 E1.25 INCH CLEVELAND OK PUBLIC

REPORTED FROM NE SIDE OF TOWN

0757 AM HAIL 2 NE NORMAN 35.24N 97.42W
05/12/2009 E1.00 INCH CLEVELAND OK PUBLIC

&&

$$

CRILEY

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KOUN [121258]: Preliminary Local Storm Report

NWUS54 KOUN 121258
LSROUN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
758 AM CDT TUE MAY 12 2009

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

0749 AM HAIL 1 NNE NORMAN 35.23N 97.44W
05/12/2009 M1.40 INCH CLEVELAND OK NWS EMPLOYEE

&&

$$

TAYLOR

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KOUN [121256]: Preliminary Local Storm Report

NWUS54 KOUN 121256
LSROUN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
756 AM CDT TUE MAY 12 2009

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

0746 AM HAIL NORMAN 35.22N 97.44W
05/12/2009 E1.75 INCH CLEVELAND OK NWS EMPLOYEE

FALLING 1 MILE NORTH OF DOWNTOWN

&&

$$

CRILEY

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KBTV [121253]: Preliminary Local Storm Report

NWUS51 KBTV 121253
LSRBTV

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BURLINGTON VT
853 AM EDT TUE MAY 12 2009

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

0235 PM HAIL WANAKENA 44.13N 74.92W
05/09/2009 E1.00 INCH ST. LAWRENCE NY DEPT OF HIGHWAYS

HIGHWAY GARAGE REPORTED QUARTER SIZED HAIL. TIME
ESTIMATED BY RADAR.

&&

$$

JOHNG

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 121242
SWODY1
SPC AC 121239

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0739 AM CDT TUE MAY 12 2009

VALID 121300Z - 131200Z

...THERE IS A SLGT RISK OF SVR TSTMS ACROSS THE NORTH-CENTRAL PLAINS
AND MISSOURI VALLEY...

...THERE IS A SLGT RISK OF SVR TSTMS OVER PARTS OF WEST TX AND
WESTERN OK...

WESTERLY FLOW ALOFT WILL PREVAIL OVER MOST OF THE NATION AGAIN
TODAY...WITH A LOW-AMPLITUDE UPPER TROUGH SLOWLY DEEPENING OVER THE
NORTHWEST US. SEVERAL SMALL-SCALE FEATURES WILL TRAVERSE THE
CENTRAL PLAINS AND AID IN THE DEVELOPMENT OF SCATTERED THUNDERSTORMS
DURING THE PERIOD.

...OK/KS/MO/IA...
AMPLE LOW LEVEL MOISTURE IS IN PLACE THIS MORNING OVER MUCH OF TX.
THIS AIRMASS WILL SPREAD SLOWLY NORTHWARD THROUGH THE DAY AS
WARM/MOIST ADVECTION TAKES PLACE. THIS WILL RESULT IN AN INCREASING
SHIELD OF SHOWERS AND THUNDERSTORMS OVER OK/KS THROUGH THE
AFTERNOON...SPREADING ACROSS MO/IA THIS EVENING. ELEVATED CAPE IN
THIS AREA WILL PROMOTE A RISK OF HAIL IN STRONGER CELLS THROUGHOUT
THE REGION.

...WEST TX/WRN OK...
A DRYLINE IS FORECAST TO FOCUS THIS AFTERNOON FROM THE TX PANHANDLE
TO NEAR MAF. STRONG HEATING IN THIS AREA WILL RESULT IN STEEP
LOW/MID LEVEL LAPSE RATES AND A VERY UNSTABLE AIRMASS /AFTERNOON
MLCAPE OF 3000+ J/KG/. FORECAST SOUNDINGS INDICATE A PRONOUNCED CAP
WILL KEEP CONVECTIVE INITIATION QUITE SPARSE. HOWEVER...A
COMBINATION OF WEAK CONVERGENCE ALONG THE CAP...SLIGHT OROGRAPHIC
FORCING ALONG THE CAPROCK ESCARPMENT...AND ENHANCED FORCING ALONG
THE RETREATING SURFACE BOUNDARY LIFTING NORTHWARD ACROSS TX MAY
RESULT IN ISOLATED SEVERE STORMS OVER THE EASTERN TX PANHANDLE.
THESE STORMS WILL POSE A RISK OF LARGE HAIL...DAMAGING WINDS...AND
ISOLATED TORNADOES. FARTHER SOUTH...MODELS SUGGEST DEEP MIXING OF
THE BOUNDARY LAYER EAST OF THE DRYLINE WHICH WILL RESULT IN HIGH
BASES OF THOSE STORMS THAT CAN DEVELOP FROM LBB SOUTHWARD.

...NORTHERN/CENTRAL PLAINS...
CONSIDERABLE UPPER TROUGH/ASSOCIATED COLD FRONT WILL DEVELOP
EASTWARD OVER THE NORTHERN INTERMOUNTAIN REGION TODAY...WITH
DOWNSTREAM HEIGHT FALLS AND LEE CYCLOGENESIS ACROSS THE NORTHERN
HIGH PLAINS. MODEST BOUNDARY LAYER MOISTURE /SURFACE DEWPOINTS
MAINLY 40S F TO LOWER 50S/ WILL TEND TO BE A LIMITING FACTOR...
ALTHOUGH A VERY STEEP LAPSE RATE ENVIRONMENT/STRONG SHEAR AMIDST
STRENGTHENING FLOW ALOFT /50+ KT AT 500 MB/ WILL SUPPORT A SEVERE
RISK THIS AFTERNOON/TONIGHT. STORMS SHOULD INITIALLY DEVELOP THIS
AFTERNOON ACROSS PORTIONS OF SOUTHEAST MT/ADJACENT NORTHEAST WY...AS
WELL AS THE WESTERN PORTIONS OF SD/NEB...AND SUBSEQUENTLY DEVELOP
EASTWARD THROUGH EARLY/MID EVENING. GIVEN A WELL-MIXED/ STEEP LAPSE
RATE ENVIRONMENT...DAMAGING WIND GUSTS AND SEVERE HAIL WILL BE THE
PRIMARY HAZARDS.

...SOUTHERN NEW ENGLAND...
MODEST SURFACE HEATING...COMBINED WITH COLD MID LEVEL TEMPERATURES
/-25C TO -27C AT 500 MB/ IN ASSOCIATION WITH AN OPEN MID LEVEL
WAVE...WILL RESULT IN THE DEVELOPMENT OF MODEST SBCAPE AND THE
POTENTIAL FOR ISOLATED SHOWER AND THUNDERSTORM DEVELOPMENT THIS
AFTERNOON ACROSS SOUTHERN NEW ENGLAND/PERHAPS LONG ISLAND VICINITY.
WITH POTENTIAL FOR SBCAPE UP TO 500 J/KG AND A STEEP LAPSE RATE
ENVIRONMENT...SOME HAIL MAY BE POSSIBLE. WEAK LOW TO MID
TROPOSPHERIC FLOW WILL LIKELY KEEP THE HAIL THREAT MARGINAL/SPORADIC
IN NATURE...AND ANY SUCH THREAT WILL QUICKLY WANE AFTER DARK.

..HART/HURLBUT.. 05/12/2009

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DAY48SVR: Nws Storm Prediction Center Norman Ok

ACUS48 KWNS 120854
SWOD48
SPC AC 120853

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0353 AM CDT TUE MAY 12 2009

VALID 151200Z - 201200Z

...CNTRL PLAINS/MID MO VALLEY...
THE MEDIUM RANGE MODELS CONTINUE TO DEVELOP A BROAD UPPER-LEVEL
TROUGH OVER THE PLAINS STATES EARLY IN THE DAY 4 TO 8 PERIOD.
UNDERNEATH THE UPPER-LEVEL TROUGH...A DEEPLY MOIST BOUNDARY LAYER
SHOULD RESULT IN MODERATE TO STRONG INSTABILITY ACROSS OK AND KS
EXTENDING ENEWD INTO NWRN MO. IN ADDITION TO THE
INSTABILITY...CONFIDENCE IS GOOD THAT SUBSTANTIAL DIRECTIONAL SHEAR
WILL BE PRESENT ACROSS PARTS OF THE CNTRL PLAINS BY FRIDAY
AFTERNOON/DAY 4. FOR THIS REASON...THE ENVIRONMENT SHOULD SUPPORT A
SEVERE THREAT AS STORMS INITIATE LATE FRIDAY AFTERNOON. THE GREATEST
POTENTIAL FOR SEVERE STORMS SHOULD BE ACROSS KS WHERE THE LATEST GFS
DEVELOPS AN MCS DURING THE EVENING. ATTM...IT APPEARS THAT ENOUGH
STORMS WILL INITIATE TO JUSTIFY A SEVERE THREAT AREA FROM THE OK
PANHANDLE NEWD ACROSS CNTRL KS INTO THE MID-MO VALLEY. BEYOND DAY
4...MODEL FORECASTS MOVE A COLD FRONT SEWD ACROSS THE GULF COAST
STATES SUNDAY/DAY 6 INTO MONDAY/DAY 7. DUE TO THIS REASON...WILL NOT
ISSUE A SEVERE THREAT AREA BEYOND DAY 4.

..BROYLES.. 05/12/2009

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KSGF [120753]: Preliminary Local Storm Report

NWUS53 KSGF 120753
LSRSGF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
253 AM CDT TUE MAY 12 2009

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

0723 AM HAIL NEOSHO 36.87N 94.37W
05/08/2009 E1.00 INCH NEWTON MO STORM CHASER

DELAYED REPORT FROM FRIDAY MORNING

&&

$$

WISE

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KSGF [120752]: Preliminary Local Storm Report

NWUS53 KSGF 120752
LSRSGF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
251 AM CDT TUE MAY 12 2009

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

0723 AM TSTM WND GST NEOSHO 36.87N 94.37W
05/08/2009 M68 MPH NEWTON MO TRAINED SPOTTER

DELAYED REPORT FROM FRIDAY MORNING

&&

$$

WISE

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DAY3SVR: Nws Storm Prediction Center Norman Ok

ACUS03 KWNS 120731
SWODY3
SPC AC 120729

DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0229 AM CDT TUE MAY 12 2009

VALID 141200Z - 151200Z

...THERE IS A SLGT RISK OF SVR TSTMS ACROSS PARTS OF WEST TX...

...SRN PLAINS...
AN UPPER-LEVEL TROUGH IS FORECAST TO MOVE QUICKLY EWD ACROSS THE OH
VALLEY WEDNESDAY NIGHT WITH ZONAL FLOW SETTING UP ACROSS THE CNTRL
STATES THURSDAY. IN THE SRN PLAINS...AN AXIS OF MODERATE TO STRONG
INSTABILITY IS FORECAST EAST OF A DRYLINE FROM WEST TX EXTENDING
NNEWD TO NEAR THE RED RIVER BY THURSDAY AFTERNOON. AT LEAST A FEW
THUNDERSTORMS APPEAR LIKELY TO DEVELOP ALONG THE INSTABILITY
GRADIENT AS SFC TEMPS WARM UP WITH CONVECTION MOVING EWD INTO
INCREASING INSTABILITY. ONCE STORMS INITIATE...FORECAST SOUNDINGS
SUGGEST SUBSTANTIAL DIRECTIONAL SHEAR AND STEEP MID-LEVEL LAPSE
RATES WILL BE SUFFICIENT FOR ORGANIZED STORMS WITH HAIL POTENTIAL.
HOWEVER...UNCERTAINTY REMAINS CONCERNING HOW MANY STORMS WILL FORM
AND THE EXACT POSITION OF THE INSTABILITY AXIS. ATTM...HAVE MADE THE
SLIGHT RISK SMALL AND FOCUSED ACROSS WEST TX WHERE THE GREATEST
POTENTIAL FOR FAVORABLE SEVERE WEATHER PARAMETERS EXISTS.

...GULF COAST/ARKLATEX...
SELY FLOW WILL BE IN PLACE ACROSS MUCH OF THE GULF COAST STATES A OF
A DIFFUSE FRONTAL BOUNDARY LOCATED IN THE MID MS AND TN VALLEYS.
ISOLATED TO SCATTERED THUNDERSTORMS SHOULD DEVELOP ACROSS A WARM
SECTOR EXTENDING EWD FROM THE ARKLATEX INTO MS...AL AND GA BY
THURSDAY AFTERNOON. ALTHOUGH WEAK VERTICAL SHEAR IS FORECAST ACROSS
THE REGION...ENOUGH INSTABILITY SHOULD BE PRESENT FOR A FEW
MARGINALLY SEVERE THUNDERSTORMS NEAR PEAK HEATING. THE MAIN THREAT
WOULD LIKELY BE WIND DAMAGE WITH CONVECTIVE CLUSTERS THAT PERSIST
INTO THE LATE AFTERNOON WHEN LOW-LEVEL LAPSE RATES WILL BE QUITE
STEEP.

..BROYLES.. 05/12/2009

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 120603
SWODY1
SPC AC 120600

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0100 AM CDT TUE MAY 12 2009

VALID 121200Z - 131200Z

...THERE IS A SLGT RISK OF SVR TSTMS ACROSS THE NORTH-CENTRAL PLAINS
AND MISSOURI VALLEY...

...THERE IS A SLGT RISK OF SVR TSTMS ACROSS PORTIONS OF
WEST/SOUTHWEST TX...

...NORTHERN/CENTRAL PLAINS...
CONSIDERABLE UPPER TROUGH/ASSOCIATED COLD FRONT WILL DEVELOP
EASTWARD OVER THE NORTHERN INTERMOUNTAIN REGION TODAY...WITH
DOWNSTREAM HEIGHT FALLS AND LEE CYCLOGENESIS ACROSS THE NORTHERN
HIGH PLAINS. WITH A MOISTURE-RICH AIRMASS CONFINED TO THE SOUTHERN
PLAINS...MODEST BOUNDARY LAYER MOISTURE /SURFACE DEWPOINTS MAINLY
40S F TO LOWER 50S/ WILL TEND TO BE A LIMITING FACTOR...ALTHOUGH A
VERY STEEP LAPSE RATE ENVIRONMENT/STRONG SHEAR AMIDST STRENGTHENING
FLOW ALOFT /50+ KT AT 500 MB/ WILL SUPPORT A SEVERE RISK THIS
AFTERNOON/TONIGHT. STORMS SHOULD INITIALLY DEVELOP THIS AFTERNOON
ACROSS PORTIONS OF SOUTHEAST MT/ADJACENT NORTHEAST WY...AS WELL AS
THE WESTERN PORTIONS OF SD/NEB...AND SUBSEQUENTLY DEVELOP EASTWARD
THROUGH EARLY/MID EVENING. GIVEN A WELL-MIXED/STEEP LAPSE RATE
ENVIRONMENT...DAMAGING WIND GUSTS AND SEVERE HAIL WILL BE THE
PRIMARY HAZARDS.

...LOWER/MIDDLE MO VALLEY TOWARD THE MIDDLE/UPPER MS VALLEY...
STRONG NORTH-NORTHEASTWARD MOISTURE TRANSPORT REGIME WILL CONTINUE
THROUGH THE DAY ACROSS THE PLAINS AND ADJACENT MIDWEST. ON THE EDGE
OF A STRONG ELEVATED MIXED LAYER ACROSS THE PLAINS...TSTMS COULD
DEVELOP AS EARLY AS MIDDAY/EARLY AFTERNOON ACROSS PORTIONS OF THE
LOWER MO VALLEY...AIDED BY A LOW AMPLITUDE IMPULSE CROSSING THE
CENTRAL PLAINS. AMPLE VERTICAL SHEAR AND AN UNSTABLE SOURCE REGION
AIRMASS WOULD SUPPORT A SEVERE HAIL RISK ATOP A RELATIVELY STABLE
BOUNDARY LAYER. IN THE WAKE OF THESE EARLY DAY/AFTERNOON TSTMS...AN
INTENSIFYING SOUTHWESTERLY LOW LEVEL JET /50-65 KT/ WILL AGAIN
RESULT IN AN UPSWING IN TSTM COVERAGE AND HAIL POTENTIAL ACROSS THE
MIDWEST LATE THIS EVENING/OVERNIGHT...AS A RATHER/MOIST UNSTABLE
ELEVATED AIRMASS ADVECTS TOWARD THE REGION.

...WEST/SOUTHWEST TX...
WITH PERTURBED WESTERLY FLOW ALOFT AND LATE AFTERNOON/EVENING
ARRIVAL OF LARGE SCALE HEIGHT FALLS ACROSS THE SOUTHERN HIGH
PLAINS...ISOLATED TO SCATTERED TSTMS SEEM LIKELY TO DEVELOP IN
VICINITY OF DRYLINE ACROSS PORTIONS OF WEST CENTRAL/SOUTHWEST TX.
THE REGION WILL BE ON THE SOUTHERN FRINGE OF THE STRONGER
WESTERLIES...BUT INCREASING HIGH LEVEL FLOW /40 KT AROUND 8 KM/ AND
AMPLE VEERING WILL SUPPORT SUPERCELLS BY LATE THIS AFTERNOON/EARLY
EVENING. RATHER STEEP LAPSE RATES AND STRONG INSTABILITY WILL
SUPPORT LARGE HAIL AS THE PRIMARY RISK.

...CENTRAL HIGH PLAINS...
SEVERE POTENTIAL IS MUCH MORE CONDITIONAL ACROSS THE CENTRAL HIGH
PLAINS IN VICINITY OF DRYLINE...INCLUDING PORTIONS OF FAR EASTERN
CO/SOUTHWEST NEB/WESTERN KS TO THE OK/TX PANHANDLES. ANY ISOLATED
TSTMS THAT DEVELOP LATE THIS AFTERNOON/EARLY EVENING WOULD
CONDITIONALLY BE CAPABLE OF SEVERE HAIL/STRONG WIND GUSTS GIVEN
AMPLE VERTICAL SHEAR/STEEP LAPSE RATES.

...EASTERN OK/ARKLATEX TO GULF COAST STATES/FL PENINSULA...
ISOLATED HAIL/DOWNBURSTS WILL BE POSSIBLE THIS AFTERNOON/EARLY
EVENING ALONG REMNANT FRONTAL ZONE FROM EASTERN OK/ARKLATEX TO THE
GULF COAST STATES...AND IN ASSOCIATION WITH THE FL SEA BREEZE. WEAK
SHEAR/RISING HEIGHTS ALOFT THROUGHOUT THIS CORRIDOR WILL TEND TO
KEEP THE SEVERE RISK LOCALIZED IN NATURE...AND MAINLY CONFINED TO
THIS AFTERNOON/EARLY EVENING.

...SOUTHERN NEW ENGLAND...
MODEST SURFACE HEATING...COMBINED WITH COLD MID LEVEL TEMPERATURES
/-25C TO -27C AT 500 MB/ IN ASSOCIATION WITH AN OPEN MID LEVEL
WAVE...WILL RESULT IN THE DEVELOPMENT OF MODEST SBCAPE AND THE
POTENTIAL FOR ISOLATED TSTM DEVELOPMENT THIS AFTERNOON ACROSS
SOUTHERN NEW ENGLAND/PERHAPS LONG ISLAND VICINITY. WITH POTENTIAL
FOR SURFACE BASED CAPE UP TO 500 J/KG AND A STEEP LAPSE RATE
ENVIRONMENT...SOME HAIL MAY BE POSSIBLE. WEAK LOW TO MID
TROPOSPHERIC FLOW WILL LIKELY KEEP THE HAIL THREAT MARGINAL/SPORADIC
IN NATURE...AND ANY SUCH THREAT WILL QUICKLY WANE AFTER DARK.

..GUYER/JEWELL.. 05/12/2009

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DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 120602
SWODY2
SPC AC 120600

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0100 AM CDT TUE MAY 12 2009

VALID 131200Z - 141200Z

...THERE IS A MDT RISK OF SVR TSTMS ACROSS PARTS OF ILLINOIS AND
MISSOURI...

...THERE IS A SLGT RISK OF SVR TSTMS ACROSS PARTS OF THE MID TO
UPPER MS VALLEY...OZARKS...CNTRL PLAINS AND SRN PLAINS...

...SEVERE WEATHER OUTBREAK WITH TORNADOES POSSIBLE WEDNESDAY
AFTERNOON AND EVENING ACROSS THE MID TO UPPER MS VALLEY...

...MID TO UPPER MS VALLEY...
A PROGRESSIVE UPPER-LEVEL TROUGH AND WELL-DEFINED 75 TO 90 KT
MID-LEVEL JET WILL MOVE EWD ACROSS THE NRN PLAINS WEDNESDAY. AHEAD
OF THE SYSTEM...A BROAD LOW-LEVEL JET WILL BE IN PLACE WITH A LARGE
WARM SECTOR FROM THE SRN PLAINS NEWD ACROSS THE OZARKS INTO THE MID
TO UPPER MS VALLEY. A DEEPLY MOIST BOUNDARY LAYER...MODERATE
INSTABILITY...STRONG VERTICAL SHEAR AND IMPRESSIVE LOW-LEVEL SHEAR
PROFILES SHOULD RESULT A SIGNIFICANT SEVERE WEATHER EPISODE ACROSS
PARTS OF THE MID TO UPPER MS VALLEY. AN OUTBREAK OF SEVERE WEATHER
AND TORNADOES WILL BE POSSIBLE WEDNESDAY AFTERNOON AND EVENING.

THE LATEST CONSENSUS OF THE MODELS WEDNESDAY MORNING MOVE A CLUSTER
OF ELEVATED THUNDERSTORMS ASSOCIATED WITH THE LOW-LEVEL JET EWD
ACROSS THE OH VALLEY WEDNESDAY MORNING. THE TRACK OF THIS STORM
CLUSTER SHOULD BE IMPORTANT WITH THE MOST SUBSTANTIAL
DESTABILIZATION OCCURRING TO THE SOUTHWEST. BY THE TIME OF
INITIATION...IT APPEARS MODERATE INSTABILITY WILL BE IN PLACE FOR A
WIDESPREAD SEVERE WEATHER EVENT FROM CNTRL MO NEWD INTO WRN AND
CNTRL IL. NAMKF FORECAST SOUNDINGS OVER THIS AREA LATE WEDNESDAY
AFTERNOON SHOW 45 TO 50 KT OF VERTICAL SHEAR WITH 0-3 KM SRH VALUES
IN THE 250 TO 350 M2/S2 RANGE. THIS COMBINED WITH LOW LCL HEIGHTS
SHOULD BE FAVORABLE FOR SUPERCELLS WITH TORNADOES. FORECAST
HODOGRAPHS SUPPORT THE POTENTIAL FOR A FEW STRONG TORNADOES WITH THE
GREATEST POTENTIAL FROM CNTRL AND ERN IL SWWD ACROSS CNTRL AND ERN
MO IN THE LATE AFTERNOON OR EARLY EVENING. IN ADDITION...FORECAST
SOUNDINGS ACROSS THE MODERATE RISK AREA SHOW STEEP MID-LEVEL LAPSE
RATES WHICH SHOULD ALSO SUPPORT A THREAT FOR LARGE HAIL. DURING THE
EVENING...INCREASING LOW-LEVEL CONVERGENCE ALONG THE COLD FRONT MAY
RESULT IN A TRANSITION TO A LINEAR MODE. HOW QUICKLY THIS TRANSITION
OCCURS IS STILL IN QUESTION. IF A WELL-DEVELOPED LINEAR MCS OR
BOWING LINE SEGMENT CAN ORGANIZE...A SUBSTANTIAL WIND DAMAGE THREAT
WILL BE POSSIBLE AS WELL.

...SRN PLAINS/OZARKS...
MODEL FORECASTS MOVE THE SRN EXTENTION OF AN UPPER-LEVEL TROUGH
ACROSS THE CNTRL PLAINS WEDNESDAY. AT THE SFC...A COLD FRONT SHOULD
ADVANCE SWD ACROSS WRN MO...SE KS INTO NRN OK WITH A DEEPLY MOIST
BOUNDARY LAYER. AS A RESULT...GOOD CONFIDENCE EXISTS THAT STRONG
INSTABILITY WILL BE PRESENT ACROSS THE WARM SECTOR BY WEDNESDAY
AFTERNOON. ALTHOUGH THE GREATEST FORCING SHOULD BE TO THE
NORTHEAST...SCATTERED THUNDERSTORMS SHOULD DEVELOP AS LOW-LEVEL
CONVERGENCE INCREASES ALONG THE BOUNDARY LATE WEDNESDAY AFTERNOON.
FORECAST SOUNDINGS ACROSS NERN OK AND SW MO SHOW INCREASING VERTICAL
SHEAR TO ABOUT 45 KT BY EARLY WEDNESDAY EVENING AS THE RIGHT
ENTRANCE REGION OF THE MID-LEVEL JET AFFECTS THE AREA. THIS ALONG
WITH THE STRONG INSTABILITY AND STEEP MID-LEVEL LAPSE RATES SHOULD
SUPPORT SUPERCELL AND LARGE HAIL DEVELOPMENT. THE MORE DOMINANT
SUPERCELLS MAY HAVE THE POTENTIAL FOR VERY LARGE HAIL. FORECAST
SOUNDINGS ALSO SHOW STRONG LOW-LEVEL SHEAR PROFILES SUPPORTIVE OF
TORNADOES ESPECIALLY AS THE LOW-LEVEL JET INCREASES DURING THE EARLY
EVENING. A SIGNIFICANT SEVERE WEATHER EVENT COULD OCCUR ACROSS THE
SOUTHWEST PORTION OF THE SLIGHT RISK AREA. HOWEVER...UNCERTAINTY IS
GREATER THAN FURTHER NORTHEAST DUE TO A FURTHER PROXIMITY TO THE
UPPER-LEVEL TROUGH.

..BROYLES.. 05/12/2009

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KSHV [120534]: Preliminary Local Storm Report

NWUS54 KSHV 120534
LSRSHV

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1234 AM CDT TUE MAY 12 2009

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

0356 PM FLASH FLOOD TEXARKANA 33.44N 94.07W
05/11/2009 BOWIE TX EMERGENCY MNGR

EXTENSIVE FLOODING ACROSS THE ENTIRE COUNTY. COUNTY ROADS
UNDERWATER INCLUDE 4109, 4125, 4126, 4116, 4108, 1306,
4008, 1101 AND 2253. MANY OF THESE ROADS WERE CLOSED.

&&

$$

MBERRY

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KGJT [120439]: Preliminary Local Storm Report

NWUS55 KGJT 120439
LSRGJT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
1039 PM MDT MON MAY 11 2009

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

1026 PM NON-TSTM WND GST 16 NW MOAB 38.74N 109.76W
05/11/2009 M60 MPH GRAND UT ASOS

&&

$$

JDC

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