Severe Thunderstorm Warning 71, NWS Grand Forks, ND

Issued

Jun 27, 1997, 10:49 PM CDT (03:49 UTC)

Expired

Jun 27, 1997, 11:15 PM CDT

In force

26 min

Issued by

NWS Grand Forks, ND

Area

Whole counties

County Clearwater County, MN

The Fargo/Grand Forks radar (KMVX), 146 km from the middle of the area, began a volume at 03:52 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.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

613 
WUUS1 KFAR 280351 RRA
SVRFAR
MNC029-280415-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1049 PM CDT FRI JUN 27 1997
 
THE NATIONAL WEATHER SERVICE IN EASTERN ND/GRAND FORKS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1115 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHWEST MINNESOTA
 
   ...NORTHERN CLEARWATER COUNTY
 
AT 1049 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM LOCATED
4O MILES SOUTHEAST OF THIEF RIVER FALLS...NEAR GONVICK...MOVING EAST AT
15 MPH. CLEARBROOK IS IN THE PATH OF THE STORM.
 
REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO
PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.
 
NG

NWS Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 27, 8:53 PM CDT, 1 hour 56 minutes earlier.

FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
850 PM CDT FRI JUN 27 1997

HAVE NOT HAD ALOT OF TIME TO LOOK AT ANY RAPID UPDATE MODELS WITH
SEVERE WX. SFC FRONT FROM NW TIP OF MN TO BETWEEN BIS AND JMS SHOWING
VERY SLOW EASTWARD MOVEMENT AND PROGS KEEP BOUNDARY NEARLY STATIONARY
OVERNIGHT. AIRMASS AHEAD OF FRONT VERY UNSTABLE WITH ADAP LI'S TO -10
AND SFC TD'S AOB 70. 00Z INL SOUNDING HAD A B+ AROUND 3000 J/KG. ALSO
INL SOUNDING HAD K INDEX OF 34...PWAT 1.36 ALONG WITH GOOD THICKNESS
DIFLUENCE OVER MN. ALSO RESPECTABLE MOIST CONVERGENC JUST EAST OF
BOUNDARY. WILL KEEP FLASH FLOOD WATCH GOING ALONG WITH CHC OF TSRA. ONLY
Q4UESTIONABLE AREA IS IN DVL WHICH IS BEHIND FRONT. WILL SPLIT OFF AREA
AND DROP CHC OF TSRA. TEMPS SEEM IN THE BALL PARK...WILL TAKE A LAST
LOOK AT UPDATE TIME. WILL PROBABLY HOLD OFF ON UPDATE TILL FIRST WATCH
AREA EXPIRES.
VOELKER

Severe Thunderstorm Warnings in Minnesota, 1997Every severe thunderstorm warning in 1997

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.