TORNADO WATCH NUMBER 389
NWS STORM PREDICTION CENTER NORMAN OK
120 AM CDT FRI MAY 16 2003
THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF
CENTRAL AND EASTERN OKLAHOMA
EFFECTIVE THIS FRIDAY MORNING FROM 120 AM UNTIL 700 AM CDT.
TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS ALONG AND 70 STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES NORTHEAST OF PONCA CITY OKLAHOMA TO 5 MILES SOUTH OF DURANT OKLAHOMA.
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...CONTINUE...WW 387...WW 388...
DISCUSSION...VERY STRONG MESO LOW AND ASSOCIATED SEVERE THUNDERSTORMS OVER NWRN OK. WITH VWP HELICITIES WELL ABOVE 500 M2/S2 IN WARM SECTOR WITH MLCAPES TO ABOVE 2000 J/KG...POTENTIAL FOR TORNADIC SUPERCELLS BOTH AHEAD OF INTENSE SQUALL LINE AS WELL AS EMBEDDED IN THE SQUALL LINE ASSOCIATED WITH MESO LOW WILL CONTINUE AS SYSTEM MOVES EWD.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600. MEAN STORM MOTION VECTOR 24040.
...HALES
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