Monday, May 26, 2008

Severe Thunderstorm Watch 371

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 371
NWS STORM PREDICTION CENTER NORMAN OK
1000 PM CDT SUN MAY 25 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
WESTERN...CENTRAL AND NORTHERN OKLAHOMA
EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 1000 PM UNTIL
500 AM CDT.
HAIL TO 1 INCH 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 105
STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES NORTHWEST OF
PONCA CITY OKLAHOMA TO 35 MILES WEST SOUTHWEST OF OKLAHOMA CITY
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.
OTHER WATCH INFORMATION...CONTINUE...
WW 362
...
WW 365
...
WW
366
...
WW 367
...
WW 368
...
WW 369
...
WW 370
...
DISCUSSION...TSTM CLUSTERS IN THE ERN TX PANHANDLE AND IN NW OK
APPEAR TO HAVE DEVELOPED SUFFICIENTLY STRONG COLD POOLS TO SUPPORT
EWD PROPAGATION INTO VERY MOIST UNSTABLE AIR OVER NRN/CNTRL OK. SRN
EXTENT OF ANY SUCH DEVELOPMENT SHOULD BE LIMITED BY INCREASING CINH.
DEVELOPMENT COULD BE ENHANCED BY HIGH-LEVEL DIFFLUENCE CENTERED
OVER THE SRN PLNS. MAIN SVR THREAT SHOULD BE LOCALLY DMGG WIND FROM
WET MICROBURSTS...AND POSSIBLY SVR HAIL.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.
A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION
VECTOR 26030.
...CORFIDI

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