Local & Regional
2:45 pm
Mon May 10, 2010

Tornado Watch till 10pm

Tulsa, OK – URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 147
NWS STORM PREDICTION CENTER NORMAN OK
125 PM CDT MON MAY 10 2010

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

SOUTH CENTRAL KANSAS
CENTRAL AND WESTERN OKLAHOMA

EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 125 PM UNTIL
1000 PM CDT.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

DESTRUCTIVE TORNADOES...LARGE HAIL TO 4 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 80 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 40 MILES SOUTH SOUTHEAST OF
FORT SILL OKLAHOMA TO 25 MILES NORTH NORTHEAST OF WICHITA KANSAS.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU7).

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 146...

DISCUSSION...AN DANGEROUS ENVIRONMENT IS DEVELOPING ACROSS PARTS OF
SOUTHERN KS AND WESTERN/CENTRAL OK THIS AFTERNOON AS AIRMASS RAPIDLY
DESTABILIZES AND UPPER TROUGH APPROACHES. THUNDERSTORMS ARE
EXPECTED TO INITIALLY DEVELOP ALONG THE SURFACE DRYLINE OVER WESTERN
OK...THEN PROGRESSING EASTWARD THROUGH THE LATE AFTERNOON AND
EVENING. TORNADIC SUPERCELLS ARE A DISTINCT POSSIBILITY WITH THE
THREAT OF STRONG AND LONG-TRACK TORNADOES. VERY LARGE HAIL IS ALSO
LIKELY IN THE STRONGER CELLS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 25045.