

317 

WWUS20 KWNS 170552

SEL1

SPC WW 170552

ILZ000-MOZ000-171300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 1

NWS STORM PREDICTION CENTER NORMAN OK

1150 PM CST MON JAN 16 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       WEST CENTRAL ILLINOIS

       SOUTHWEST THROUGH EAST CENTRAL MISSOURI



EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 1150 PM

UNTIL 700 AM CST.



TORNADOES...HAIL TO 1 INCH 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 45 MILES SOUTH SOUTHEAST OF

SPRINGFIELD MISSOURI TO 30 MILES NORTH NORTHEAST OF ALTON

ILLINOIS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).



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.



DISCUSSION...SCTD TSTMS HAVE INCREASED IN THE PAST HOUR ALONG AND

AHEAD OF SW-NE COLD FRONT THROUGH CNTRL MO.  STORMS MAY SOMEWHAT

INCREASE IN COVERAGE AND POSSIBLY STRENGTH THROUGH EARLY TUE AS

REGION IS GLANCED BY NEXT WEAK IMPULSE SHEARING ENEWD AHEAD OF MAIN

UPR TROUGH MOVING E FROM CNTRL KS.  NEAR-SFC SSWLY FLOW WILL

MAINTAIN LOW LVL WAA ACROSS REGION...WITH SFC TEMPS AROUND 60 F AND

SFC DEW POINTS IN THE MID/UPR 50S.  THIS SETUP MAY YIELD A FEW SHORT

LINES/BROKEN SEGMENTS OF STORMS CAPABLE OF LOCALLY DMGG WIND AND

PERHAPS ONE OR TWO QLCS TORNADOES GIVEN COOL MID LVL TEMPS/STRENGTH

OF CLOUD LAYER FLOW.



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

SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND

GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 350.

MEAN STORM MOTION VECTOR 25045.





...CORFIDI

