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Displaying AFOS PIL: SEL8 Product Timestamp: 2003-05-11 01:05 UTC
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000
WWUS20 KWNS 110102
SEL8
SPC WW 110105
ILZ000-INZ000-WIZ000-LMZ000-110700-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 348
NWS STORM PREDICTION CENTER NORMAN OK
805 PM CDT SAT MAY 10 2003
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTHEASTERN ILLINOIS
NORTHWEST INDIANA
SOUTHEAST WISCONSIN
LAKE MICHIGAN
EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 805 PM UNTIL
200 AM 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 60 STATUTE MILES EAST AND WEST
OF A LINE FROM 70 MILES SOUTH SOUTHEAST OF MARSEILLES ILLINOIS TO
55 MILES NORTH OF MILWAUKEE WISCONSIN.
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 341...WW 342...WW 343...WW
344...WW 345...WW 346...WW 347...
DISCUSSION...INTENSE TORNADIC SUPERCELLS WRN IL WILL MOVE RAPIDLY
NEWD AHEAD OF DEEPENING LOW. STRONG DEEP LAYER SHEAR AND VERY
UNSTABLE AIRMASS WILL CONTINUE TO SUPPORT POTENTIAL FOR LONG LIVED
TORNADIC SUPERCELLS ACROSS THE WATCH AREA.
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 24040.
...HALES
402,0891 434,0890 434,0864 402,0870