Tornado Watch # 271

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 271
NWS STORM PREDICTION CENTER NORMAN OK
520 PM CDT MON MAY 1 2006

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

NORTHWEST AND NORTH CENTRAL ARKANSAS
WESTERN ILLINOIS
SOUTHERN AND EAST CENTRAL MISSOURI
NORTHEAST AND EAST CENTRAL OKLAHOMA

EFFECTIVE THIS MONDAY AFTERNOON FROM 520 PM UNTIL MIDNIGHT 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 75 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 50 MILES NORTHWEST OF POTEAU
OKLAHOMA TO 35 MILES NORTH OF CARBONDALE ILLINOIS. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU1).

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 270...

DISCUSSION...SEVERE THUNDERSTORMS INCLUDING SUPERCELLS WILL CONTINUE
TO INCREASE AND SPREAD ENEWD ACROSS WW THIS EVENING. PRIMARY SEVERE
THREATS WILL BE FROM LARGE HAIL AND DAMAGING WINDS. HOWEVER...LOW
LEVEL SHEAR WILL BECOME INCREASINGLY FAVORABLE FOR
TORNADOES...ESPECIALLY INTO S-CENTRAL/SERN MO AND IL PORTIONS OF WW.

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 26035.


...EVANS