Tornado Watch 353

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 353
NWS STORM PREDICTION CENTER NORMAN OK
655 PM CDT SAT MAY 24 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTHERN OKLAHOMA
EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 655 PM
UNTIL 100 AM CDT.
TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 95 STATUTE
MILES EAST AND WEST OF A LINE FROM 45 MILES NORTH OF ENID
OKLAHOMA TO 45 MILES SOUTH OF ENID OKLAHOMA. FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU3).
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 347
. WATCH NUMBER 347 WILL NOT BE IN EFFECT AFTER
655 PM CDT. CONTINUE...
WW 346
...
WW 348
...
WW 349
...
WW 350
...
WW
351
...
WW 352
...
DISCUSSION...ISOLD SUPERCELL CLUSTER CONTINUES TO CYCLICALLY EXHIBIT
ENHANCED LOW-LEVEL ROTATION AND INCREASED TORNADO POTENTIAL AS IT
EVOLVES SLOWLY E ALONG WEAKENING W-E OUTFLOW BOUNDARY OVER NRN OK.
CONTINUING PRESENCE OF VERY MOIST INFLOW...AND NOCTURNAL
STRENGTHENING OF SLY LLJ...SUGGEST THAT STORMS MAY CONTINUE TO FORM
ALONG BOUNDARY. GIVEN DEGREE OF INSTABILITY PRESENT...ANY SUCH
ACTIVITY WILL POSE A SVR THREAT DESPITE LOSS OF SFC HEATING AND
MODEST DEEP SHEAR. WWD-RETREATING N-S DRY LINE IN WRN OK MAY ALSO
SERVE AS A FOCUS FOR STORM INITIATION LATER THIS EVENING.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 25015.
...CORFIDI