Tornado Watch 421

Issued

Jun 13, 2001, 7:30 PM CDT (00:30 UTC)

Expired

Jun 14, 2001, 1:00 AM CDT

In force

6 hr

Issued by

the Storm Prediction Center

000 
WWUS9 KMKC 140023
SEL1  

SEL1  
MKC WW 140020
IAZ000-MNZ000-140600-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 421
STORM PREDICTION CENTER NORMAN OK
720 PM CDT WED JUN 13 2001

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

   NORTHWEST IOWA                               
   MINNESOTA                          

EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 730 PM
UNTIL 100 AM CDT.

TORNADOES...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 25 MILES SOUTHWEST OF SPENCER IOWA TO 40 MILES
NORTHWEST OF BRAINERD MINNESOTA.

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...THIS TORNADO WATCH REPLACES TORNADO WATCH
NUMBER 415.  WATCH NUMBER 415 WILL NOT BE IN EFFECT AFTER 730 PM
CDT.  CONTINUE...WW 416...WW 417...WW 418...WW 419...WW 420...

DISCUSSION...TORNADIC SUPERCELLS ASSOCIATED WITH STRONG PRESSURE
FALLS AND SURFACE LOW WCENTRAL MN WILL CONTINUE EWD.  ADDITIONAL
SEVERE THUNDERSTORMS ALONG FRONTAL ZONE INTO WRN MN AND NWRN IA
WITH SUPERCELLS AND ISOLATED TORNADOES POSSIBLE.


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 24035.


...HALES

;425,0964 464,0960 464,0932 425,0941;

Tornado Watches in Minnesota, 2001Tornado Watches in Iowa, 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.