Tornado Watch 221

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 221
NWS STORM PREDICTION CENTER NORMAN OK
325 PM CDT WED APR 23 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
PARTS OF NORTHWEST AND WEST CENTRAL TEXAS
EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 325 PM UNTIL
1100 PM CDT.
TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 45 MILES WEST OF MIDLAND
TEXAS TO 5 MILES NORTH NORTHEAST OF STEPHENVILLE TEXAS. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU1).
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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.
OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES
TORNADO
WATCH NUMBER 219
. WATCH NUMBER 219 WILL NOT BE IN EFFECT AFTER
325 PM CDT. CONTINUE...
WW 217
...
WW 218
...
WW 220
...
DISCUSSION...TORNADIC SUPERCELLS HAVE DEVELOPED ALONG E/W BOUNDARY
CENTRAL TX AS S/WV TROUGH AND MID LEVEL WIND MAX MOVE ACROSS AREA.
WITH A VERY UNSTABLE AIR MASS IN PLACE AND FAVORABLE VEERING SHEAR
PROFILES...TORNADIC SUPERCELLS WILL CONTINUE EWD VICINITY OF
BOUNDARY AS WELL AS ACROSS WARM SECTOR OF WATCH AREA.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 25030.
...HALES