Tornado Watch 660

Issued

Jun 24, 1998, 9:00 PM CDT (02:00 UTC)

Expired

Jun 25, 1998, 3:00 AM CDT

In force

6 hr

Issued by

the Storm Prediction Center

The Minneapolis radar (KMPX), 90 km from the middle of the area, began a volume at 02:00 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.

924 
WWUS9 KMKC 250137
SEL0  
MKC WW 250137
MNZ000-WIZ000-IAZ000-250800-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 660
STORM PREDICTION CENTER NORMAN OK
837 PM CDT WED JUN 24 1998

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

   SOUTHERN MINNESOTA                          
   WESTERN WISCONSIN                          
   NORTHERN IOWA                               

EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 900 PM
UNTIL 300 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 95 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 25 MILES WEST NORTHWEST OF FAIRMONT MINNESOTA
TO 40 MILES EAST OF LA CROSSE WISCONSIN.

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 654...WW 655...WW
656...WW 657...WW 658...WW 659...

DISCUSSION...CONVECTIVE SYSTEM EXPECTED TO CONTINUE MOVING ENEWD
FROM NE NEB/SE SD...WHILE NEW CONVECTION DEVELOPS IN ZONE OF
INCREASING WARM ADVECTION EWD INTO WRN WI.  SUPERCELLS WITH LARGE
HAIL/BOWS AND POSSIBLE TORNADOES EXPECTED GIVEN HIGH SURFACE
DEWPOINTS /MID 70S/ AND BACKED LOW-LEVEL FLOW INVOF DIFFUSE WARM
FRONT.   

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 26035.


...CORFIDI

451,0945 451,0902 423,0902 422,0945

Tornado Watches in Minnesota, 1998Tornado Watches in Iowa, 1998Tornado Watches in Wisconsin, 1998Every tornado watch in 1998

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.