WATCHES: Tornado Watch Number 744

WWUS20 KWNS 221724
SEL4
SPC WW 221724
IAZ000-ILZ000-MOZ000-230000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 744
NWS STORM PREDICTION CENTER NORMAN OK
1125 AM CST MON NOV 22 2010

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

PARTS OF EASTERN IOWA
PARTS OF NORTHERN AND WESTERN ILLINOIS
PARTS OF NORTHEASTERN MISSOURI

EFFECTIVE THIS MONDAY MORNING AND EVENING FROM 1125 AM UNTIL 600
PM CST.

TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE
MILES EAST AND WEST OF A LINE FROM 20 MILES NORTH NORTHWEST OF
ROCKFORD ILLINOIS TO 50 MILES SOUTH OF QUINCY ILLINOIS. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU4).

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...THUNDERSTORMS EXPECTED TO INCREASE IN NUMBER AND
INTENSITY ALONG AND AHEAD OF STRONG COLD FROM ERN IA INTO NRN MO.
AIR MASS IS NOW MODESTLY UNSTABLE AND WITH THE VERY STRONG SHEAR
PROFILES IN PLACE...SEVERE STORMS ARE EXPECTED TO DEVELOP. PRIMARY
THREAT WILL BE WIND DAMAGE...HOWEVER SUPERCELLS INCLUDING POSSIBLE
TORNADOES WILL BE POSSIBLE...PRIMARILY IN ADVANCE OF DEEPENING LOW
MOVING NEWD ACROSS ERN IA INTO WI AND EWD NEAR WARM FRONT ACROSS NRN
IL.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
450. MEAN STORM MOTION VECTOR 23045.

...HALES

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