

000 

WWUS20 KWNS 311841

SEL7

SPC WW 311841

ILZ000-MOZ000-010200-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 147

NWS STORM PREDICTION CENTER NORMAN OK

145 PM CDT MON MAR 31 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       WEST CENTRAL ILLINOIS

       EAST CENTRAL MISSOURI



EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 145 PM UNTIL 900

PM CDT.



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 70 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 15 MILES WEST OF JEFFERSON

CITY MISSOURI TO 20 MILES SOUTH SOUTHEAST OF SCOTT AFB ILLINOIS.

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 146...



DISCUSSION...CLUSTER OF INTENSE THUNDERSTORMS OVER CENTRAL MO WILL

TRACK EAST-NORTHEASTWARD INTO WATCH AREA THIS AFTERNOON AND EVENING.

 INCREASINGLY MOIST AND UNSTABLE AIR MASS...COUPLED WITH

STRENGTHENING WIND FIELDS ALOFT WILL PROMOTE A RISK OF SUPERCELL

THUNDERSTORMS CAPABLE OF LARGE HAIL...DAMAGING WINDS...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 25030.





...HART

