Alert archive / Minnesota / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 44, NWS Grand Forks, ND

June 25, 1991Kittson County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 25, 1991, 10:08 AM CDT for Kittson County, Minnesota. It was in force for 67 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 25, 1991, 10:08 AM CDT (15:08 UTC)
Expired: Jun 25, 1991, 11:15 AM CDT
In force: 67 min
Issued by: NWS Grand Forks, ND
Area: Whole counties

County Kittson County, MN

What was reported inside it

Time	Report	Where	Remark
Jun 25, 10:55 AM CDT	Hail 0.75	Kittson, MN

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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 3.1 hours before the alert went out and 257 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 394 J/kg
Mixed-layer CIN: -228 J/kg
Mixed-layer LCL: 791 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 79 m²/s²
0-3 km storm-relative helicity: 93 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jun 25, 6:35 AM CDT, 3 hours 33 minutes before

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Special weather statement, Jun 25, 7:38 AM CDT, 2 hours 30 minutes before

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Special weather statement, Jun 25, 9:49 AM CDT, 19 minutes before

NDZ012-013-014-015-016-017-018-MNZ001-006-007-010-011-013-251530-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE FARGO ND
949 AM CDT TUE JUN 25 1991

 ...THE THUNDERSTORM WARNING FOR CLAY COUNTY MINNESOTA HAS EXPIRED...
AT 931 AM CDT...STRONG THUNDERSTORMS STILL REMAINED IN CLAY AND BECKER
COUNTIES OF WEST CENTRAL MINNESOTA...20 MILES NORTH OF DETROIT LAKES...
AND IN THE HAWLEY...HITTERDAL...AND FELTON AREAS...25 TO 30 MILES NORTH-
EAST OF FARGO.

AT 905 AM CDT...63 MPH WINDS AND 3/4 INCH HAIL WAS REPORTED 1 MILE EAST
OF DILWORTH MINNESOTA...OR ABOUT 10 MILES EAST OF FARGO.  AT 915 AM CDT
HAIL UP TO 11/4 INCHES IN DIAMETER FELL AT AVERILL MINNESOTA...15 MILES
NORTHEAST OF FARGO...DAMAGING A CAR RADIATOR.

THESE STORMS DID NOT APPEAR TO BE IN THE SEVERE CATAGORY AT 930 AM...BUT
COULD STRENGTHEN AND BECOME SEVERE IN JUST A MATTER OF MINUTES.  SHOULD
THREATENING WEATHER APPROACH YOUR AREA...TAKE SHELTER IN A STRONG...
REINFORCED BUILDING.
 .
OTHER SHOWERS AND THUNDERSTORMS...A FEW WITH VERY HEAVY RAIN...WERE
LOCATED OVER THE NORTHEAST CORNER OF NORTH DAKOTA...AND THE NORTHWEST
CORNER OF MINNESOTA.  THE STRONGEST STORMS WERE IN AND NEAR THE
PEMBINA AREA OF OEXTREME NORTHEAST NORTH DAKOTA.

THESE SHOWERS AND THUNDERSTORMS APPEARED TO BE DEVELOPING TO THE SOUTH
...AND WERE MOVING EAST AT 25 MILES AN HOUR.

Local storm report, Jun 25, 9:51 AM CDT, 17 minutes before

STORM REPORTS
NATIONAL WEATHER SERVICE FARGO ND
945 AM CDT TUE JUN 25 1991

TIME      EVENT
905AM     DIME SIZE HAIL AND 63 MPH WIND...1 MILE EAST OF DILWORTH MN..
          5 MILES EAST OF FARGO.

915UAM     CLAY COUNTY MN SHERIFF REPORTED HAIL 3/4 TO 11/4 INCH DIAMETER
          AT AVERILL MN...15 MILES NORTHEAST OF FARGO. DAMAGED CAR
          RADIATOR.

The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 25, 8:28 AM CDT	Severe Thunderstorm Warning	FGF	Clay	62 min
Jun 25, 3:16 PM CDT	Severe Thunderstorm Warning	FGF	Koochiching	59 min
Jun 25, 3:18 PM CDT	Tornado Warning	FGF	Roseau	42 min
Jun 25, 4:01 PM CDT	Tornado Warning	FGF	Lake of the Woods, Roseau	44 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1991 Every severe thunderstorm warning in 1991

Sources

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.