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Displaying AFOS PIL: SEL4 Product Timestamp: 2003-05-10 22:40 UTC
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000
WWUS20 KWNS 102236
SEL4
SPC WW 102240
ILZ000-MOZ000-110400-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 344
NWS STORM PREDICTION CENTER NORMAN OK
540 PM CDT SAT MAY 10 2003
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
CENTRAL ILLINOIS
CENTRAL AND EASTERN MISSOURI
EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 540 PM UNTIL
1100 PM CDT.
...THIS IS A PARTICULARLY DANGEROUS SITUATION...
DESTRUCTIVE TORNADOES...LARGE HAIL TO 3 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE
POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS ALONG AND 120 STATUTE MILES EAST AND
WEST OF A LINE FROM 50 MILES NORTHEAST OF QUINCY ILLINOIS TO 35
MILES SOUTH SOUTHEAST OF JEFFERSON CITY MISSOURI.
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...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 337. WATCH NUMBER 337 WILL NOT BE IN EFFECT AFTER 540
PM CDT. CONTINUE...WW 337...WW 338...WW 340...WW 341...WW 342...WW
343...
DISCUSSION...STRONG CYCLOGENESIS IS UNDERWAY INTO NRN MO/ERN IA AS
VIGOROUS UPPER TROUGH SHIFTS TOWARDS AREA. CONDITIONS ARE PRIMED
FOR LONGED LIVED TORNADIC SUPERCELLS AHEAD OF DRY LINE. ADDITIONALLY
ALONG DRY LINE SEVERE THUNDERSTORMS ARE REDEVELOPING RAPIDLY.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550.
MEAN STORM MOTION VECTOR 26040.
...HALES
402,0881 380,0894 380,0940 402,0924