SEL5
SPC WW 192150
IAZ000-ILZ000-MNZ000-WIZ000-200500-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 715
NWS STORM PREDICTION CENTER NORMAN OK
450 PM CDT WED AUG 19 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
EASTERN IOWA
NORTHWEST ILLINOIS
SOUTHEAST MINNESOTA
WESTERN WISCONSIN
EFFECTIVE THIS WEDNESDAY AFTERNOON FROM 450 PM UNTIL MIDNIGHT CDT.
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 55 STATUTE
MILES EAST AND WEST OF A LINE FROM 85 MILES NORTH OF EAU CLAIRE
WISCONSIN TO 5 MILES EAST SOUTHEAST OF MOLINE ILLINOIS. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU5).
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 713...WW 714...
DISCUSSION...MID LVL VORT AND ASSOCIATED SEASONABLY STRONG WIND
FIELD...ALONG WITH MOIST SELY LOW LVL FLOW AND MODEST SFC HEATING IN
NARROW ZONE OF CLEARING...WILL MAINTAIN SETUP FAVORABLE FOR
RELATIVELY LOW-TOPPED TSTMS WITH ENHANCED LOW LVL ROTATION. THIS
SETUP MAY PERSIST FOR A FEW MORE HOURS AS THE VORT CONTINUES
NNEWD...AND YIELD A CONTINUING CHANCE FOR A FEW TORNADOES.
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 400.
MEAN STORM MOTION VECTOR 21035.
...CORFIDI
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