URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 112
NWS STORM PREDICTION CENTER NORMAN OK
820 PM CDT FRI MAR 14 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHWEST ARKANSAS
FAR SOUTHEAST KANSAS
FAR SOUTHWEST MISSOURI
CENTRAL AND EASTERN OKLAHOMA
EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 820 PM
UNTIL 400 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 80
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 45 MILES WEST
SOUTHWEST OF PONCA CITY OKLAHOMA TO 25 MILES SOUTHEAST OF
FAYETTEVILLE ARKANSAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE
THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).
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 111
...
DISCUSSION...SMALL MCS BEGINNING TO FORM OVER N CNTRL OK AHEAD OF
ESE-MOVING MID-LEVEL VORT MAX MAY POSE AN INCREASING THREAT FOR DMGG
WIND AND POSSIBLY MARGINALLY SVR HAIL GIVEN MDT TO STRONG
UNIDIRECTIONAL MID-LEVEL FLOW...STEEP LOW TO MID-LEVEL LAPSE RATES
AND FAIRLY DEEP...DRY SUB-CLOUD LAYER.
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 400. MEAN STORM MOTION
VECTOR 28035.
...CORFIDI
Friday, March 14, 2008
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