National Weather Service Raw Text Product
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Displaying AFOS PIL: SEL4 Product Timestamp: 2003-05-09 02:10 UTC
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000
WWUS20 KWNS 090207
SEL4
SPC WW 090210
IAZ000-ILZ000-090800-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 314
NWS STORM PREDICTION CENTER NORMAN OK
910 PM CDT THU MAY 8 2003
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHEAST IOWA
NORTHERN AND CENTRAL ILLINOIS
EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 910 PM UNTIL
300 AM CDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 65 STATUTE MILES
EAST AND WEST OF A LINE FROM 25 MILES EAST NORTHEAST OF DUBUQUE
IOWA TO 25 MILES SOUTHWEST OF DECATUR ILLINOIS.
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 308...WW 309...WW 310...WW
311...WW 312...WW 313...
DISCUSSION...STRONG WARM ADVECTION COUPLED WITH RAPIDLY INCREASING
ELEVATED INSTABILITY WILL SUPPORT SEVERE THUNDERSTORMS TO SPREAD EWD
TO N OF WARM FRONT. ELEVATED SUPERCELLS WILL ENHANCE THE LARGE HAIL
THREAT.
AVIATION...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 24040.
...HALES
423,0885 393,0875 393,0902 423,0913
WWUS20 KWNS 090207
SEL4
SPC WW 090210
IAZ000-ILZ000-090800-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 314
NWS STORM PREDICTION CENTER NORMAN OK
910 PM CDT THU MAY 8 2003
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHEAST IOWA
NORTHERN AND CENTRAL ILLINOIS
EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 910 PM UNTIL
300 AM CDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 65 STATUTE MILES
EAST AND WEST OF A LINE FROM 25 MILES EAST NORTHEAST OF DUBUQUE
IOWA TO 25 MILES SOUTHWEST OF DECATUR ILLINOIS.
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 308...WW 309...WW 310...WW
311...WW 312...WW 313...
DISCUSSION...STRONG WARM ADVECTION COUPLED WITH RAPIDLY INCREASING
ELEVATED INSTABILITY WILL SUPPORT SEVERE THUNDERSTORMS TO SPREAD EWD
TO N OF WARM FRONT. ELEVATED SUPERCELLS WILL ENHANCE THE LARGE HAIL
THREAT.
AVIATION...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 24040.
...HALES
423,0885 393,0875 393,0902 423,0913
000
WWUS20 KWNS 090207
SEL4
SPC WW 090210
IAZ000-ILZ000-090800-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 314
NWS STORM PREDICTION CENTER NORMAN OK
910 PM CDT THU MAY 8 2003
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHEAST IOWA
NORTHERN AND CENTRAL ILLINOIS
EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 910 PM UNTIL
300 AM CDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 65 STATUTE MILES
EAST AND WEST OF A LINE FROM 25 MILES EAST NORTHEAST OF DUBUQUE
IOWA TO 25 MILES SOUTHWEST OF DECATUR ILLINOIS.
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 308...WW 309...WW 310...WW
311...WW 312...WW 313...
DISCUSSION...STRONG WARM ADVECTION COUPLED WITH RAPIDLY INCREASING
ELEVATED INSTABILITY WILL SUPPORT SEVERE THUNDERSTORMS TO SPREAD EWD
TO N OF WARM FRONT. ELEVATED SUPERCELLS WILL ENHANCE THE LARGE HAIL
THREAT.
AVIATION...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 24040.
...HALES
423,0885 393,0875 393,0902 423,0913