

462 

WWUS20 KWNS 110149

SEL7

SPC WW 110149

ARZ000-ILZ000-KYZ000-MOZ000-MSZ000-TNZ000-110800-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 27

NWS STORM PREDICTION CENTER NORMAN OK

750 PM CST WED MAR 10 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       EASTERN ARKANSAS

       SOUTHWEST ILLINOIS

       FAR WESTERN KENTUCKY

       SOUTHEAST MISSOURI

       NORTHWEST MISSISSIPPI

       FAR WESTERN TENNESSEE



EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 750 PM

UNTIL 200 AM CST.



TORNADOES...HAIL TO 2 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 80 STATUTE

MILES EAST AND WEST OF A LINE FROM 15 MILES NORTHEAST OF SAINT

LOUIS MISSOURI TO 55 MILES EAST OF PINE BLUFF 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 21...WW 22...WW 23...WW

24...WW 25...WW 26...



DISCUSSION...SEVERE TSTMS /INCLUDING SUPERCELLS/ ARE EXPECTED TO

DEVELOP OVERNIGHT WITHIN MOISTENING AND INCREASINGLY SHEARED

ENVIRONMENT ALONG 40-50 KT LLJ AXIS.  THE MOST INTENSE STORMS WILL

BE CAPABLE OF LARGE HAIL AND ISOLATED TORNADOES.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 22035.





...MEAD/HART

