Severe Thunderstorm Warning 91, NWS Grand Forks, ND

Issued

Jun 28, 1997, 2:13 AM CDT (07:13 UTC)

Expired

Jun 28, 1997, 2:45 AM CDT

In force

32 min

Issued by

NWS Grand Forks, ND

Area

Whole counties

County Norman County, MN

The Fargo/Grand Forks radar (KMVX), 69 km from the middle of the area, began a volume at 07:13 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.

437 
WUUS1 KFAR 280712 RRA
SVRFAR
MNC107-280745-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
213 AM CDT SAT JUN 28 1997
 
THE NATIONAL WEATHER SERVICE IN EASTERN ND/GRAND FORKS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  245 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL MINNESOTA
 
   ...NORMAN COUNTY
 
AT 215 AM CDT...DOPPLER WEATHER RADAR INDICATED A SEVERE THUNDERSTORM 5
MILES SOUTHWEST OF ADA OR 30 MILES NORTH OF FARGO...MOVING SOUTHEAST AT
20 MPH. THIS STORM WILL AFFECT THE TOWNS OF ADA AND BORUP.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND OVER 57 MPH...HAIL
3/4 INCH IN DIAMETER OR LARGER...TORNADOES...DEADLY
LIGHTNING...AND VERY HEAVY RAIN.  MOVE TO A SMALL INTERIOR
ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.
 
RA

NWS Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 27, 8:53 PM CDT, 5 hours 20 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.