

967 

WWUS20 KWNS 280544

SEL7

SPC WW 280544

ILZ000-INZ000-281100-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 27

NWS STORM PREDICTION CENTER NORMAN OK

1245 AM EST MON FEB 28 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       EAST CENTRAL ILLINOIS

       CENTRAL AND SOUTHWEST INDIANA



EFFECTIVE THIS MONDAY MORNING FROM 1245 AM UNTIL 600 AM EST.



TORNADOES...HAIL TO 1.5 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 45 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 70 MILES SOUTHWEST OF TERRE

HAUTE INDIANA TO 50 MILES EAST SOUTHEAST OF INDIANAPOLIS INDIANA.

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



DISCUSSION...INTENSE BOW ECHO IN THE STL AREA WILL RACE

EAST-NORTHEASTWARD INTO THE WATCH DURING THE NEXT FEW HOURS.  STORMS

ARE TRACKING ALONG AND SOUTH OF SURFACE WARM FRONT...WITH POTENTIAL

FOR WIDESPREAD DAMAGING WINDS.  VERY STRONG LOW LEVEL SHEAR WILL

ALSO POSE THE RISK FOR QLCS TORNADOES EMBEDDED IN THE SQUALL LINE.



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

SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE

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

450. MEAN STORM MOTION VECTOR 24045.





...HART

