Tornado Watch 436

Issued

Jun 11, 2004, 1:45 PM CDT (18:45 UTC)

Expired

Jun 11, 2004, 7:00 PM CDT

In force

5 hr

Issued by

the Storm Prediction Center

The Minneapolis radar (KMPX), 135 km from the middle of the area, began a volume at 18:46 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.

• Mesoscale Discussion 1187Jun 11, 10:10 AM CDT
• Mesoscale Discussion 1190Jun 11, 12:55 PM CDT
• Mesoscale Discussion 1191Jun 11, 3:03 PM CDT

000 
WWUS20 KWNS 111843
SEL6  
SPC WW 111845
IAZ000-MNZ000-120000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 436
NWS STORM PREDICTION CENTER NORMAN OK
145 PM CDT FRI JUN 11 2004

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

       NORTHERN IOWA
       SOUTHERN MINNESOTA

EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 145 PM UNTIL 700
PM CDT.

TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS ALONG AND 80 STATUTE MILES EAST AND WEST
OF A LINE FROM 30 MILES NORTHWEST OF MANKATO MINNESOTA TO 45 MILES
EAST SOUTHEAST OF FORT DODGE 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 434...WW 435...

DISCUSSION...SEVERE THUNDERSTORMS WILL RAPIDLY DEVELOP VICINITY WARM
FRONT AS IT MOVES NWD INTO SRN MN. EXTREMELY UNSTABLE WARM SECTOR
AIR MASS COUPLED WITH ENHANCED SHEAR VICINITY FRONTAL BOUNDARY WILL
RESULT IN POTENTIAL FOR TORNADIC SUPERCELLS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 22035.


...HALES

442,0924 421,0914 421,0945 442,0955

Tornado Watches in Iowa, 2004Tornado Watches in Minnesota, 2004Every tornado watch in 2004

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.