

828 

WWUS20 KWNS 130227

SEL5

SPC WW 130227

TXZ000-130900-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 385

NWS STORM PREDICTION CENTER NORMAN OK

930 PM CDT TUE JUN 12 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       WEST TEXAS AND THE TEXAS PANHANDLE



EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 930 PM

UNTIL 400 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 70

STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH OF

AMARILLO TEXAS TO 45 MILES SOUTH SOUTHEAST OF MIDLAND TEXAS.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU5).



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 382...WW 383...



DISCUSSION...CLUSTERS OF STORMS WILL CONTINUE TO MOVE ESEWD ACROSS

THE PANHANDLE IN A ZONE OF MOISTENING UPSLOPE FLOW...AND ALONG A

RESIDUAL OUTFLOW BOUNDARY INVOF MAF.  DESPITE THE LOSS OF DAYTIME

HEATING...LOW-LEVEL MOISTURE SPREADING WWD/NWWD WILL HELP MAINTAIN

INSTABILITY INTO THE OVERNIGHT HOURS ACROSS THE HIGH PLAINS...AND

THE RISK FOR LARGE HAIL/DAMAGING WINDS IS EXPECTED TO PERSIST.



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 550. MEAN STORM

MOTION VECTOR 30025.





...THOMPSON

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