Tornado Watch 677

Issued

Jun 26, 1998, 4:30 PM CDT (21:30 UTC)

Expired

Jun 26, 1998, 10:00 PM CDT

In force

6 hr

Issued by

the Storm Prediction Center

The Aberdeen radar (KABR), 30 km from the middle of the area, began a volume at 21:32 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.

757 
WWUS9 KMKC 262046
SEL7  
MKC WW 262046
SDZ000-NDZ000-MNZ000-270300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 677
STORM PREDICTION CENTER NORMAN OK
346 PM CDT FRI JUN 26 1998

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

   EASTERN SOUTH DAKOTA                       
   SOUTHEAST NORTH DAKOTA                       
   WESTERN MINNESOTA                          

EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 430 PM UNTIL 1000
PM 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 100 STATUTE MILES EAST AND WEST
OF A LINE FROM 45 MILES SOUTHWEST OF HURON SOUTH DAKOTA TO 25 MILES
NORTHWEST OF FARGO NORTH DAKOTA.

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 675.  WATCH NUMBER 675 WILL NOT BE IN EFFECT AFTER 430 PM
CDT.  CONTINUE...WW 669...WW 674...WW 676...

DISCUSSION...THREAT FOR SUPERCELLS AND POSSIBLE TORNADOES WILL
PERSIST THIS EVENING E OF LOW CENTER AND N OF WARM FRONT. AIR MASS
IS VERY UNSTABLE INDICATING A THREAT FOR VERY LARGE HAIL AS WELL.

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 25025.


...VESCIO

435,1005 471,0991 471,0950 435,0965

Tornado Watches in South Dakota, 1998Tornado Watches in North Dakota, 1998Tornado Watches in Minnesota, 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.