Tornado Watch 134

Issued

Apr 11, 2001, 12:00 PM CDT (17:00 UTC)

Expired

Apr 11, 2001, 5:00 PM CDT

In force

5 hr

Issued by

the Storm Prediction Center

000 
WWUS9 KMKC 111636
SEL4  

SEL4  
WWUS9 KMKC 111631
MKC WW 111631
IAZ000-112200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 134
STORM PREDICTION CENTER NORMAN OK
1131 AM CDT WED APR 11 2001

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

   IOWA                               

EFFECTIVE THIS WEDNESDAY AFTERNOON FROM NOON CDT UNTIL 500 PM CDT.

 ...THIS IS A PARTICULARLY DANGEROUS SITUATION...
 
DAMAGING 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 90 STATUTE MILES EAST AND WEST
OF A LINE FROM 30 MILES NORTH NORTHWEST OF FORT DODGE IOWA TO 40
MILES SOUTH SOUTHEAST OF OTTUMWA IOWA.

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 130...WW 131...WW
132...WW 133...

DISCUSSION...SEVERE THUNDERSTORMS ARE RAPIDLY DEVELOPING AHEAD OF
COLD FRONT INTO SWRN IA.  AS VERY STRONG COUPLED JET  MOVES ACROSS
LOWER MO VALLEY THIS AFTERNOON...SUPERCELLS AND TORNADOES WILL
DEVELOP EWD ACROSS IA.


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 500. 
MEAN STORM MOTION VECTOR 20045.


...HALES

;425,0923 403,0902 403,0935 425,0961;

Tornado Watches in Iowa, 2001Tornado Watches in Illinois, 2001Every tornado watch in 2001

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.