URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 217
NWS STORM PREDICTION CENTER NORMAN OK
305 PM CDT TUE APR 26 2011
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
EASTERN ARKANSAS
SOUTHEAST ILLINOIS
WESTERN KENTUCKY
SOUTHEAST MISSOURI INCLUDING THE BOOTHEEL
NORTHWEST MISSISSIPPI
WEST TENNESSEE
EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 305 PM UNTIL
1000 PM CDT.
...THIS IS A PARTICULARLY DANGEROUS SITUATION...
DESTRUCTIVE TORNADOES...LARGE 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 70 STATUTE
MILES EAST AND WEST OF A LINE FROM 75 MILES NORTH OF FORT
CAMPBELL KENTUCKY TO 35 MILES EAST OF EL DORADO ARKANSAS. 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 213...WW 214...WW
215...WW 216...
DISCUSSION...THUNDERSTORMS ARE INTENSIFYING ALONG A WEAK SURFACE
BOUNDARY EXTENDING FROM CENTRAL AR INTO WESTERN KY. A FEW OF THESE
INITIAL STORMS WILL LIKELY BECOME SUPERCELLS WITH A RISK OF LARGE
HAIL...DAMAGING WINDS...AND ISOLATED TORNADOES. THE RISK OF
SIGNIFICANT SEVERE WEATHER WILL INCREASE THROUGH THE EVENING AS
STORMS FORM TO THE SOUTHWEST AND MOVE INTO THE WATCH AREA. VERY
STRONG SHEAR PROFILES DURING THE LATTER HALF OF THE WATCH PERIOD
SUGGEST THAT PDS WORDING IS APPROPRIATE...WITH STRONG TORNADOES
POSSIBLE.
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 24035.
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