

242 

WWUS20 KWNS 110136

SEL4

SPC WW 110136

ARZ000-ILZ000-INZ000-KYZ000-MOZ000-MSZ000-TNZ000-110800-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 94

NWS STORM PREDICTION CENTER NORMAN OK

830 PM CDT WED APR 10 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       EASTERN ARKANSAS

       SOUTHERN AND CENTRAL ILLINOIS

       SOUTHWEST INDIANA

       WESTERN KENTUCKY

       SOUTHEAST MISSOURI

       NORTHWEST MISSISSIPPI

       WEST TENNESSEE



EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 830 PM

UNTIL 300 AM CDT.



TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 75 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 45 MILES NORTH NORTHEAST OF

SALEM ILLINOIS TO 55 MILES WEST SOUTHWEST OF OXFORD MISSISSIPPI.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU4).



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 89...WW 90...WW 91...WW

92...WW 93...



DISCUSSION...SSW-NNE SQLN NOW EXTENDING FROM NEAR STL TO E OF PBF

EXPECTED TO CONTINUE ENE AT ABOUT 25 KTS...WHILE STORMS WITHIN THE

LINE MOVE NNE AT 45-50. AREA VWP DATA SHOW A BAND OF ENHANCED SSWLY

850-700 MB FLOW...WITH SPEEDS AOA 60 KTS...DEVELOPING EWD AHEAD OF

SQLN IN ASSOCIATION WITH UPR LVL JET STREAK NOW ENTERING WRN AR.

AMPLE LOW-LVL MOISTURE IS IN PLACE TO SUPPORT A CONTINUED THREAT FOR

DMGG WIND AND OCCASIONAL QLCS-TYPE TORNADOES FROM EMBEDDED SUSTAINED

STORMS/SUPERCELLS/LEWPS. SVR POTENTIAL MAY BECOME MORE FOCUSED IN

NRN THIRD OF THE WW LATER TNGT/ERY THU AS NRN PART OF SQLN INTERACTS

WITH SFC FRONT EXPECTED TO REMAIN QSTNRY NEAR I-70 IN IL/SW IND.



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

SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

550. MEAN STORM MOTION VECTOR 22045.





...CORFIDI

