Alert archive / Minnesota / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 41, NWS Grand Forks, ND

August 9, 1992Lake of the Woods County, Roseau County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 9, 1992, 8:13 AM CDT for Lake of the Woods County, Roseau County, Minnesota. It was in force for 62 min.

The area

The counties it named.

The facts

Issued
Aug 9, 1992, 8:13 AM CDT (13:13 UTC)
Expired
Aug 9, 1992, 9:15 AM CDT
In force
62 min
Issued by
NWS Grand Forks, ND
Area
Whole counties

Counties Lake of the Woods County, MN, Roseau County, MN

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 1.2 hours before the alert went out and 153 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

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KINL 091318 COR
SVRINL
MNC077-135-091415-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INTERNATIONAL FALLS MN
816 AM CDT SUN AUG 9 1992

THE NATIONAL WEATHER SERVICE IN INTERNATIONAL FALLS HAS ISSUED A
SEVERE THUNDERSTORM WARNING     EFFECTIVE UNTIL  915 AM CDT
FOR PERSONS IN THE FOLLOWING LOCATIONS...

IN NORTH CENTRAL MINNESOTA

   ...LAKE OF THE WOODS COUNTY

IN NORTHWEST MINNESOTA

   ...ROSEAU COUNTY

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR KOOCHICHING AND
NORTHERN ST. LOUIS COUNTIES UNTIL 845 AM CDT...

AT 810 RADAR INDICATED A SEVERE THUNDERSTORM IN SOUTHCENTRAL ROSEAU
COUNTY...15 MILES SOUTHWEST OF ROSEAU. THUNDERSTORM MOVEMENT WAS TO
THE EAST AT 35 MPH AND WILL MOVE THROUGH THE TOWNS OF WANASKA AND
PENCER BY 845 AM CDT...AND CONTINUE INTO THE BELTRAMI ISLAND STATE
FOREST IN SOUTHERN LAKE OF THE WOODS COUNTY BY 905 AM CDT.



WHEN THUNDERSTORMS ARE OCCURRING..MOVE INSIDE A STRONG BUILDING
DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES OR ELECTRICAL
APPLIANCES UNLESS IN AN EMERGENCY. REMEMBER SEVERE THUNDERSTORMS
CAN AND OCCASIONALLY DO PRODUCE TORNADOS WITH LITTLE OR NO WARNING.

NNNN

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, 2 hours 43 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, 1 hour 37 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, 30 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

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, 10:32 AM CDTSevere Thunderstorm WarningFGFBeltrami, Clearwater58 min
Aug 9, 11:21 AM CDTSevere Thunderstorm WarningFGFBeltrami, Clearwater69 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; the sounding from the Mesonet's radiosonde archive.