Tornado Watch 554

Issued

Jun 29, 2005, 3:50 PM CDT (20:50 UTC)

Expired

Jun 29, 2005, 11:00 PM CDT

In force

7 hr

Issued by

the Storm Prediction Center

• Mesoscale Discussion 1541Jun 29, 1:52 PM CDT
• Mesoscale Discussion 1543Jun 29, 3:37 PM CDT
• Mesoscale Discussion 1547Jun 29, 9:23 PM CDT

000 
WWUS20 KWNS 292051
SEL4  
SPC WW 292051
IAZ000-MNZ000-NDZ000-300400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 554
NWS STORM PREDICTION CENTER NORMAN OK
350 PM CDT WED JUN 29 2005

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

       NORTHWEST IOWA
       WESTERN AND CENTRAL MINNESOTA
       SOUTHEAST NORTH DAKOTA

EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 350 PM UNTIL
1100 PM CDT.

TORNADOES...HAIL TO 4 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE MILES
EAST AND WEST OF A LINE FROM 55 MILES EAST NORTHEAST OF FARGO
NORTH DAKOTA TO 20 MILES SOUTH SOUTHEAST OF SPENCER IOWA.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU4).

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 553. WATCH NUMBER 553 WILL NOT BE IN EFFECT AFTER 350
PM CDT. 

DISCUSSION...RAPID INCREASE IN SEVERE THUNDERSTORMS EXPECTED AS
SURFACE LOW NOW DEEPENING MOVES NNEWD INTO NWRN MN. EXTREMELY
UNSTABLE AIR MASS IN WARM SECTOR AND VERY STRONG SHEAR SUPPORT
TORNADIC SUPERCELLS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600.
MEAN STORM MOTION VECTOR 22035.


...HALES

471,0941 425,0933 425,0962 471,0971

Tornado Watches in Minnesota, 2005Tornado Watches in Iowa, 2005Tornado Watches in South Dakota, 2005Every tornado watch in 2005

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.