

000 

WWUS20 KWNS 310352

SEL2

SPC WW 310352

OKZ000-310800-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 142

NWS STORM PREDICTION CENTER NORMAN OK

1055 PM CDT SUN MAR 30 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       A LARGE PORTION OF CENTRAL OKLAHOMA



EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 1055 PM UNTIL

300 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 65 STATUTE

MILES EAST AND WEST OF A LINE FROM 25 MILES NORTH NORTHWEST OF

PONCA CITY OKLAHOMA TO 15 MILES SOUTHEAST OF OKLAHOMA CITY

OKLAHOMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).



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 140. WATCH NUMBER 140 WILL NOT BE IN EFFECT AFTER

1055 PM CDT. CONTINUE...WW 141...



DISCUSSION...LONG LIVED POTENTIALLY TORNADIC SUPERCELLS CONTINUE

SLOWLY EWD ACROSS W CENTRAL OK. WITH THE INCREASE OF THE LOW LEVEL

JET TO 50KT IT APPEARS THAT THE TORNADO THREAT COULD CONTINUE

SEVERAL MORE HOURS AS THE STORMS TRACK E/ENEWD ACROSS CENTRAL OK.



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

500. MEAN STORM MOTION VECTOR 26015.





...HALES

