Alert archive / Minnesota / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 43, NWS Grand Forks, ND

August 9, 1992Beltrami County, Clearwater County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 9, 1992, 11:21 AM CDT for Beltrami County, Clearwater County, Minnesota. It was in force for 69 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
Aug 9, 1992, 11:21 AM CDT (16:21 UTC)
Expired
Aug 9, 1992, 12:30 PM CDT
In force
69 min
Issued by
NWS Grand Forks, ND
Area
Whole counties

Counties Beltrami County, MN, Clearwater County, MN

What was reported inside it

TimeReportWhereRemark
Aug 9, 12:15 PM CDTHail 0.75Beltrami, 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, 4.4 hours before the alert went out and 164 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-pSkew-T log-p diagram, International Fa, MN at 12:00Z on 1992-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2840 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, International Fa, MN at 12:00Z on 1992-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2840 J/kg
Mixed-layer CIN
-130 J/kg
Mixed-layer LCL
593 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
199 m²/s²
Significant tornado parameter
0.0
Supercell composite
-1.5

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, Aug 9, 5:30 AM CDT, 5 hours 51 minutes before
NDZ012-013-014-015-016-017-018-MNZ001-006-007-010-011-013-091130-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE FARGO ND
525 AM CDT SUN AUG 9 1992

...STRONG THUNDERSTORMS MOVE ACROSS EXTREME NORTHERN RED RIVER VALLEY...
AT 525 AM CDT A CLUSTER OF STRONG THUNDERSTORMS CONTINUED TO MOVE ACROSS
THE EXTREME NORTH END OF THE RED RIVER VALLEY OF THE NORTH.

THE MAJORITY OF THE STORMS WERE INSIDE CANADA...HOWEVER THE SOUTHERN END
OF THE THUNDERSTORMS WERE BRUSHING ALONG THE NORTH END OF KITTSON AND
ROSEAU COUNTIES OF NORTHWEST MINNESOTA.

MOVEMENT WAS EAST AT 35 MILES AN HOUR AND THIS MOVEMENT WILL TAKE THE
STORMS INTO THE WARROAD AREA OF NORTHEASTERN ROSEAU COUNTY AND INTO THE
LAKE OF THE WOODS AREA BY 700 AM CDT

NO SEVERE WEATHER HAD BEEN REPORTED IN NORTHWEST MINNESTOA WITH THESE
STORMS BUT THE POTENTIAL TO PRODUCE LARGE HAIL...VERY HEAVY RAIN...
STRONG WINDS AND DEADLY LIGHTNING EXISTS.
PEOPLE IN THE PATH OF THESE STORMS SHOULD BE PREPARED TO GO TO SAFE
SHELTER...IF THE NEED ARISES.

PLEASE STAY TUNED TO RADIO/TELEVISION OR NOAA WEATHER RADIO FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.
ANDERSEN
Special weather statement, Aug 9, 6:36 AM CDT, 4 hours 45 minutes before
NDZ012-013-014-015-016-017-018-MNZ001-006-007-010-011-013-091230-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE FARGO ND
625 AM CDT SUN AUG 9 1992

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR NORTHWEST AND NORTH CENTRAL
MINNESOTA UNTIL 1100 AM CDT...
AT 625 AM CDT A CLUSTER OF STRONG THUNDERSTORMS CONTINUED TO MOVE ACROSS
THE EXTREME NORTH END OF THE RED RIVER VALLEY OF THE NORTH.

THE MAJORITY OF THE STORMS WERE INSIDE CANADA...HOWEVER THE SOUTHERN END
OF THE THUNDERSTORMS WERE SAGGING SOUTHEAST ACROSS KITTSON AND ROSEAU
COUNTIES OF NORTHWEST MINNESOTA.

MOVEMENT WAS SOUTHEAST AT 30 MILES AN HOUR AND MOVEMENT WILL TAKE THE
THUNDERSTORMS INTO LAKE OF THE WOODS COUNTY AND THE NORTHWEST CORNER OF
MARSHALL COUNTY BY 730 AM CDT.

THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING LARGE HAIL...VERY HEAVY
RAIN...STRONG WINDS AND DANGEROUS LIGHTNING STRIKES.
PEOPLE IN THE PATH OF THESE STORMS SHOULD BE PREPARED TO GO TO SAFE
SHELTER...IF THE NEED ARISES.

PLEASE STAY TUNED TO RADIO/TELEVISION OR NOAA WEATHER RADIO FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.
ANDERSEN
Special weather statement, Aug 9, 7:43 AM CDT, 3 hours 38 minutes before
NDZ012-013-014-015-016-017-018-MNZ001-006-007-010-011-013-091330-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE FARGO ND
725 AM CDT SUN AUG 9 1992

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR NORTHWEST AND NORTH CENTRAL
MINNESOTA UNTIL 1100 AM CDT...
AT 725 AM CDT AN AREA OF STRONG THUNDERSTORMS CONTINUED TO MOVE ACROSS
NORTHWEST MINNESOTA.  MOVEMENT OF THESE STORMS WAS TO THE EAST AT 30
TO 35 MILES AN HOUR. SOME OF THESE STORMS EXTENDED NORTH INTO CANADA.
THESE STORMS HAD PRODUCED 3/4 INCH HAIL IN ROSEAU COUNTY OF NORTHWEST
MINNESOTA AND ALL ARE CAPABLE OF PRODUCING LARGE HAIL...STRONG WINDS...
VERY HEAVY RAIN AND DANGEROUS LIGHTNING AS THEY MOVE EAST ACROSS THE
NORTHERN COUNTIES OF MINNESOTA.

ANOTHER AREA OF STRONG THUNDERSTORMS WAS MOVING ACROSS CENTAL NORTH
DAKOTA AT 30 TO 35 MILES WITH THE STRONGEST THUNDERSTORMS NORTHWEST OF
JAMESTOWN NORTH DAKOTA.

PERSONS IN AND NEAR THE WATCH AREA AND NEAR ANY OF THESE THUNDERSTORMS
SHOULD REMAIN ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AND BE
PREPARED TO SEEK SHELTER IF THE NEED SHOULD ARISE.

PLEASE STAY TUNED TO RADIO/TELEVISION OR NOAA WEATHER RADIO FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.
ANDERSEN
Special weather statement, Aug 9, 8:40 AM CDT, 2 hours 41 minutes before
NDZ012-013-014-015-016-017-018-MNZ001-006-007-010-011-013-091430-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE FARGO ND
825 AM CDT SUN AUG 9 1992

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR NORTHWEST AND NORTH CENTRAL
MINNESOTA UNTIL 1100 AM CDT...
AT 825 AM CDT AN AREA OF STRONG THUNDERSTORMS CONTINUED TO MOVE ACROSS
NORTHWEST MINNESOTA. MOST OF THESE THUNDERSTORMS WERE NOW IN CANADA
NORTH OF INTERNATIONAL FALLS MINNESOTA. THESE THUNDERSTORMS HAD
PRODUCHED LARGE HAIL AND STRONG WINDS.

ANOTHER AREA OF STRONG THUNDERSTORMS EXTENDED FROM NEAR PEMBINA IN
PEMBINA COUNTY OF NORTHEAST NORTH DAKOTA SOUTHWEST TO THE SOUTH DAKOTA
BORDER SOUTH OF BISMARCK NORTH DAKOTA. THESE THUNDERSTORMS WERE MOVING
EAST NORTHEAST AT 30 TO 35 MILES AN HOUR AND WILL BE OVER MUCH OF
EASTERN NORTH DAKOTA BY 10 AM CDT. THESE THUNDERSTORMS COULD PRODUCE
HAIL...VERY HEAVY RAIN...STRONG WINDS AND DANGEROUS LIGHTNING STRIKES.

PERSONS IN AND NEAR THE WATCH AREA AND NEAR ANY OF THESE THUNDERSTORMS
SHOULD REMAIN ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AND BE
PREPARED TO SEEK SHELTER IF THE NEED SHOULD ARISE.

PLEASE STAY TUNED TO RADIO/TELEVISION OR NOAA WEATHER RADIO FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.
ANDERSEN
Special weather statement, Aug 9, 9:40 AM CDT, 1 hour 41 minutes before
NDZ012-013-014-015-016-017-018-MNZ001-006-007-010-011-013-091530-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE FARGO ND
925 AM CDT SUN AUG 9 1992

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR NORTHWEST AND NORTH CENTRAL
MINNESOTA UNTIL 1100 AM CDT...
AT 925 AM CDT AN AREA OF STRONG THUNDERSTORMS HAD MOVED EAST INTO
CANADA...EAST OF INTERNATIONAL FALLS MINNESOTA.

ANOTHER AREA OF STRONG THUNDERSTORMS EXTENDED FROM THE NORTHWEST
CORNER OF KITTSON COUNTY OF NORTHWEST MINNESOTA SOUTHWEST THROUGH
THE JAMESTOWN NORTH DAKOTA AREA ON TO THE SOUTH DAKOTA BORDER. THESE
THUNDERSTORMS WERE MOVING EAST NORTHEAST AT 35 TO 40 MILES AN HOUR.
THESE THUNDERSTORMS WILL BE OVER ALL OF THE RED RIVER VALLEY BY 10 AM.
THESE THUNDERSTORMS COULD PRODUCE STORNG WINDS...VERY HEAVY RAIN...HAIL
AND GUSTY WINDS.

PERSONS IN AND NEAR THE WATCH AREA AND NEAR ANY OF THESE THUNDERSTORMS
SHOULD REMAIN ALERT FOR RADIDLY CHANGING WEATHER CONDITION,S
AND BE PREPARED TO SEEK SHELTER IF THE NEED ARISES.

PLEASE STAY TUNED TO RADIO/TELEVISION OR NOAA WEATHER RADIO FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.
ANDERSEN
Special weather statement, Aug 9, 10:37 AM CDT, 44 minutes before
NDZ012-013-014-015-016-017-018-MNZ001-006-007-010-011-013-091630-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE FARGO ND
1025 AM CDT SUN AUG 9 1992

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MUCH OF WESTERN MINNESOTA
UNTIL 3 PM CDT...
AT 1025 AM CDT AN AREA OF STRONG THUNDERSTORMS COVERED MUCH OF THE
RED RIVER VALLEY OF EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA.

THE STRONGEST OF THESE THUNDERSTORMS WERE LOCATED OVER NORTHWEST
MINNESOTA COVERING MUCH OF MAHNOMEN AND EASTERN POLK COUNTIES OF
NORTHWEST MINNESOTA. PEA TO MARBLE SIZED HAIL HAD BEEN REPORTED AT
FOSSTON MINNESOTA IN POLK COUNTY AND NEAR MAHNOMEN IN MAHNOMEN COUNTY.
THESE THUNDERSTORMS WERE ALSO PRODUCING VERY HEAVY RAIN AND STRONG
WINDS. A LINE OF THUNDERSTORMS...SOME WITH VERY HEAVY RAIN WERE
NEARING THE RED RIVER VALLEY FROM THE WEST. ALL OF THESE THUNDERSTORMS
WERE MOVING EAST NORTHEAST AT 35 TO 40 MILES AN HOUR.

PERSONS IN AND NEAR THE WATCH AREA AND NEAR ANY OF THESE THUNDERSTORMS
SHOULD STAY ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AND BE
PREPARED TO SEEK SHELTER IF THE NEED ARISES.

PLEASE STAY TUNED TO RADIO/TELEVISION OR NOAA WEATHER RADIO FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.
ANDERSEN

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 6:47 AM CDTSevere Thunderstorm WarningFGFLake of the Woods, Roseau28 min
Aug 9, 7:17 AM CDTSevere Thunderstorm WarningFGFKoochiching, Lake of the Woods28 min
Aug 9, 8:13 AM CDTSevere Thunderstorm WarningFGFLake of the Woods, Roseau62 min
Aug 9, 10:32 AM CDTSevere Thunderstorm WarningFGFBeltrami, Clearwater58 min
Aug 9, 11:21 AM CDTSevere Thunderstorm WarningFGFKoochiching, Lake of the Woods, Roseau69 min
Aug 9, 12:30 PM CDTSevere Thunderstorm WarningFGFBeltrami, Koochiching60 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1992Every severe thunderstorm warning in 1992

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.