WATCHES: Severe Thunderstorm Watch Number 150

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URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 150
NWS STORM PREDICTION CENTER NORMAN OK
1155 AM CDT THU MAY 9 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
CENTRAL TEXAS

* EFFECTIVE THIS THURSDAY MORNING AND EVENING FROM 1155 AM UNTIL
700 PM CDT.

* PRIMARY THREATS INCLUDE...
NUMEROUS LARGE HAIL EVENTS EXPECTED WITH SEVERAL VERY LARGE HAIL
EVENTS TO 3 INCHES IN DIAMETER POSSIBLE
SEVERAL DAMAGING WIND GUSTS TO 70 MPH LIKELY
A FEW TORNADOES POSSIBLE

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES WEST
NORTHWEST OF SAN ANGELO TEXAS TO 55 MILES EAST OF CORSICANA
TEXAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

DISCUSSION...CNTRL TX TSTMS EXPECTED TO INCREASE IN
COVERAGE/STRENGTH THROUGH THE AFTN AS ASCENT ASSOCIATED WITH BIG
BEND UPR IMPULSE...IN CONJUNCTION WITH MODEST SFC HEATING AND
CONTINUED 30+ KT INFLOW OF RICH BOUNDARY LAYER AIR...FURTHER
DESTABILIZE REGION. POTENTIAL WILL EXIST FOR EMBEDDED SUSTAINED
STORMS/SUPERCELLS WITH VERY LARGE HAIL/LOCALLY DMGG WIND. SOME
POTENTIAL ALSO WILL EXIST FOR EVENTUAL DEVELOPMENT OF
FORWARD-PROPAGATING SEGMENTS/BOWS WITH A SOMEWHAT MORE WIDESPREAD
RISK FOR DMGG WIND AND POSSIBLY A TORNADO.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 25030.


...CORFIDI

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