

859 

WWUS20 KWNS 240416

SEL8

SPC WW 240416

TXZ000-241000-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 88

NWS STORM PREDICTION CENTER NORMAN OK

1115 PM CDT FRI APR 23 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       CENTRAL AND NORTH CENTRAL TEXAS



EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 1115 PM

UNTIL 500 AM CDT.



HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 40

STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES EAST OF

SHERMAN TEXAS TO 45 MILES WEST SOUTHWEST OF TEMPLE TEXAS.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU8).



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 82...WW 83...WW 84...WW

85...WW 86...WW 87...



DISCUSSION...FORCING FOR ASCENT WILL CONTINUE TO SPREAD E/NEWD

ACROSS CENTRAL AND NRN TX OVERNIGHT SUPPORTING ADDITIONAL STRONG TO

SEVERE TSTM DEVELOPMENT NNEWD THROUGH CENTRAL AND NORTH CENTRAL TX.

MAGNITUDE OF DEEP LAYER SHEAR AND MODERATE INSTABILITY WILL SUPPORT

A THREAT FOR HAIL AND STRONG WIND GUSTS.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 24035.





...Peters/Corfidi

