SEVERE THUNDERSTORM WATCH NUMBER 201
NWS STORM PREDICTION CENTER NORMAN OK
200 PM CDT MON APR 25 2005
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
CENTRAL AND EASTERN OKLAHOMA
EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 200 PM UNTIL 800
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 75
STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES NORTHWEST OF
BARTLESVILLE OKLAHOMA TO 20 MILES SOUTHWEST OF ARDMORE OKLAHOMA.
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.
DISCUSSION...AS LOW LEVEL MOISTURE SPREADS NWD ACROSS WATCH AREA
AHEAD OF COLD FRONT/DEVELOPING DRY LINE...AIR MASS HAS BECOME
MODERATELY UNSTABLE AND WEAKLY CAPPED. THUNDERSTORMS EXPECTED TO
RAPIDLY DEVELOP ALONG/E OF BOUNDARIES WITH THE COOL STEEP LAPSE
RATES SUPPORTING PRIMARILY A LARGE HAIL THREAT.