Tornado Watch 732

Issued

Sep 18, 1997, 5:30 PM CDT (22:30 UTC)

Expired

Sep 19, 1997, 12:00 AM CDT

In force

7 hr

Issued by

the Storm Prediction Center

The Duluth radar (KDLH), 95 km from the middle of the area, began a volume at 22:34 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

366 
WWUS9 KMKC 182225
SEL2  
MKC WW 182225
MNZ000-WIZ000-MIZ000-190500-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 732
STORM PREDICTION CENTER NORMAN OK
525 PM CDT THU SEP 18 1997

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

   CENTRAL AND EAST CENTRAL MINNESOTA                          
   NORTHERN WISCONSIN                          
   EXTREME SOUTHERN LAKE SUPERIOR                         

EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 530 PM UNTIL
MIDNIGHT CDT.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 55 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 55 MILES WEST SOUTHWEST OF BRAINERD MINNESOTA
TO 45 MILES SOUTH SOUTHEAST OF IRONWOOD MICHIGAN.

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...POTENTIAL FOR A FEW SUPERCELLS AND POSSIBLE TORNADOES
THIS EVENING AS LARGE SCALE ASCENT ASSOCIATED WITH ENTRANCE REGION
OF SPEED MAX CROSSING SOUTHWEST ONTARIO.  AREA CAPE IN EXCESS OF
3000 J/KG WITH 45-50 KT MID-LEVEL WESTERLY FLOW SUGGESTS ACTIVITY 
LIKELY TO INCREASE RAPIDLY IN COVERAGE NEXT FEW HOURS.   
 

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. 
MEAN STORM MOTION VECTOR 25040.


...CORFIDI

465,0951 464,0894 450,0894 451,0951

Tornado Watches in Minnesota, 1997Tornado Watches in Wisconsin, 1997Tornado Watches in Michigan, 1997Every tornado watch in 1997

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; radar from the NEXRAD Level II archive.