Alert archive / Minnesota / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 38, NWS Grand Forks, ND

August 18, 1995Koochiching County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 18, 1995, 7:04 PM CDT for Koochiching County, Minnesota. It was in force for 56 min.

The area

The counties it named.

The facts

Issued
Aug 18, 1995, 7:04 PM CDT (00:04 UTC)
Expired
Aug 18, 1995, 8:00 PM CDT
In force
56 min
Issued by
NWS Grand Forks, ND
Area
Whole counties

County Koochiching County, MN

The nearest sounding before it

International Fa, MN (KINL), launched 00:00Z, 0.1 hours before the alert went out and 51 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 00:00Z on 1995-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 109 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 00:00Z on 1995-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 390 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
109 J/kg
Mixed-layer CIN
-156 J/kg
Mixed-layer LCL
606 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
390 m²/s²
0-3 km storm-relative helicity
559 m²/s²
Significant tornado parameter
0.0
Supercell composite
9.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KINL 190004 RRA
SVRINL
MNC071-190100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INTERNATIONAL FALLS MN
704 PM CDT FRI AUG 18 1995
 
THE NATIONAL WEATHER SERVICE IN INTERNATIONAL FALLS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  800 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTH CENTRAL MINNESOTA
 
   ...SOUTHERN KOOCHICHING COUNTY
 
AT 700 PM CDT...DULUTH RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS
ALONG THE KOOCHICHING COUNTY...BELTRAMI COUNTY BORDER...OR
ABOUT 65 MILES SOUTHWEST OF INTERNATIONAL FALLS.
 
THESE STORMS ARE MOVING EAST AT 25 MPH. PERSONS IN NORTHOME...GEMMELL...
RIDGE...BIG FALLS...AND MARGIE ARE IN THE DIRECT PATH OF THESE SEVERE
THUNDERSTORMS. THESE STORMS WILL PRODUCE VERY LARGE HAIL...
DAMAGING WINDS...AND DEADLY LIGHTNING. ALSO...SEVERE THUNDERSTORMS
CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.
 
 
THIS IS A DANGEROUS STORM.  IF YOU ARE` IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.
 
 
 
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

Local storm report, Aug 18, 5:30 PM CDT, 1 hour 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FARGO ND
530 PM CDT FRI AUG 18 1995

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

455 PM     GRAND FORKS               ND   60 MPH WINDS AT UNIVERSITY OF
08/18/95   GRAND FORKS                    NORTH DAKOTA

525 PM     FISHER                    MN   PEA-MARBLE HAIL...VERY HEAVY
08/18/95   POLK                           RAIN...VERY STRONG WINDS.

540 PM     POLK/PENNINGTON CO LINE   MN   FUNNEL CLOUD REPORTED BY
08/18/95   POLK/PENNINGTON                PENNINGTON COUNTY SHERIFF

VOELKER
Special weather statement, Aug 18, 5:50 PM CDT, 1 hour 14 minutes before
SPECIAL WEATHER STATEMENT AND SHORT TERM FORECAST
NATIONAL WEATHER SERVICE FARGO ND
550 PM CDT FRI AUG 18 1995

NDZ007-008-016-026>030-038-039-049-052-053-MNZ001>004-
007>009-013>017-022>024-027>032-039-040-182350-
EASTERN NORTH DAKOTA AND THE NORTHWEST QUARTER OF MINNESOTA

.NOW...
AT 530 PM CDT...SCATTERED STRONG THUNDERSTORMS...SOME WHICH CONTAINED
VERY HEAVY RAIN WERE MOVING NORTHEAST ACROSS NORTHWEST MINNESOTA.
STRONGEST THUNDERSTORMS EXTENDED OVER A 15 TO 20 MILE WIDE AREA FROM
EXTREME SOUTHEAST KITTSON COUNTY OF NORTHWEST MINNESOTA...SOUTHWARD
TO AROUND CROOKSTON IN WESTERN POLK COUNTY. THESE STRONG THUNDERSTORMS
WERE MOVING EAST AT 30 MILES AN HOUR AND SHOULD MOVE ACROSS RED LAKE
...PENNINGTON...EASTERN MARSHALL AND WEST ROSEAU COUNTIES OF NORTH-
&&
WEST MINNESOTA BY 630 PM. SOME OF THESE THUNDERSTORMS MAY CONTAIN LARGE
HAIL AND VERY HEAVY RAIN ALONG WITH STRONG WINDS AND DANGEROUS LIGHTNING.
OTHER SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED OVER NORTHEAST
NORTH DAKOTA AND NORTHWEST AND NORTH CENTRAL MINNESOTA. A COUPLE OF
STONG THUNDERSTORMS WHICH CONTAINED VERY HEAVY RAIN WERE MOVING OVER
THE WEST PORTION OF UPPER AND LOWER RED LAKES OF NORTHWEST MINNESOTA.
BOATERS ON THE UPPER AND LOWER RED LAKES SHOULD SEEK SAFE HARBOR AS
THESE STORMS MOVE EAST ACROSS THE LAKES.
&&
SPIES
Special weather statement, Aug 18, 5:56 PM CDT, 1 hour 8 minutes before
SPECIAL WEATHER STATEMENT AND SHORT TERM FORECAST
NATIONAL WEATHER SERVICE FARGO ND
550 PM CDT FRI AUG 18 1995

NDZ007-008-016-026>030-038-039-049-052-053-MNZ001>004-
007>009-013>017-022>024-027>032-039-040-182350-
EASTERN NORTH DAKOTA AND THE NORTHWEST QUARTER OF MINNESOTA

.NOW...
AT 530 PM CDT...SCATTERED STRONG THUNDERSTORMS...SOME WHICH CONTAINED
VERY HEAVY RAIN WERE MOVING NORTHEAST ACROSS NORTHWEST MINNESOTA.
STRONGEST THUNDERSTORMS EXTENDED OVER A 15 TO 20 MILE WIDE AREA FROM
EXTREME SOUTHEAST KITTSON COUNTY OF NORTHWEST MINNESOTA...SOUTHWARD
TO AROUND CROOKSTON IN WESTERN POLK COUNTY. THESE STRONG THUNDERSTORMS
WERE MOVING EAST AT 30 MILES AN HOUR AND SHOULD MOVE ACROSS RED LAKE
...PENNINGTON...EASTERN MARSHALL AND WEST ROSEAU COUNTIES OF NORTH-
&&
WEST MINNESOTA BY 630 PM. SOME OF THESE THUNDERSTORMS MAY CONTAIN LARGE
HAIL AND VERY HEAVY RAIN ALONG WITH STRONG WINDS AND DANGEROUS LIGHTNING.
OTHER SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED OVER NORTHEAST
NORTH DAKOTA AND NORTHWEST AND NORTH CENTRAL MINNESOTA. A COUPLE OF
STONG THUNDERSTORMS WHICH CONTAINED VERY HEAVY RAIN WERE MOVING OVER
THE WEST PORTION OF UPPER AND LOWER RED LAKES OF NORTHWEST MINNESOTA.
BOATERS ON THE UPPER AND LOWER RED LAKES SHOULD SEEK SAFE HARBOR AS
THESE STORMS MOVE EAST ACROSS THE LAKES.
&&
SPIES
Local storm report, Aug 18, 6:33 PM CDT, 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FARGO ND
530 PM CDT FRI AUG 18 1995

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

455 PM     GRAND FORKS               ND   60 MPH WINDS AT UNIVERSITY OF
08/18/95   GRAND FORKS                    NORTH DAKOTA

525 PM     FISHER                    MN   PEA-MARBLE HAIL...VERY HEAVY
08/18/95   POLK                           RAIN...VERY STRONG W.INDS.

540 PM     POLK/PENNINGTON CO LINE   MN   FUNNEL CLOUD REPORTED BY
08/18/95   POLK/PENNINGTON                PENNINGTON COUNTY SHERIFF

VOELKER
Special weather statement, Aug 18, 6:40 PM CDT, 24 minutes before
SPECIAL WEATHER STATEMENT AND SHORT TERM FORECAST
NATIONAL WEATHER SERVICE FARGO ND
640 PM CDT FRI AUG 18 1995

NDZ007-008-016-026>030-038-039-049-052-053-MNZ001>004-
007>009-013>017-022>024-027>032-039-040-190040-
EASTERN NORTH DAKOTA AND THE NORTHWEST QUARTER OF MINNESOTA

.NOW...
AT 628 PM CDT...SCATTERED THUNDERSTORMS...SOME WHICH CONTAINED VERY
HEAVY RAIN CONTINUED OVER PARTS OF NORTHWEST AND NORTH CENTRAL
MINNESOTA...A PORTION OF NORTHEAST AND EXTREME SOUTHEAST NORTH DAKOTA.

THE THUNDERSTORMS WHICH CONTAINED VERY HEAVY RAIN WERE GENERALLY OVER
AN AREA BETWEEN WARROAD AND BEMIDJI...FROM JUST SOUTHWEST OF THE LOWER
RED LAKE AND A FEW JUST SOUTWEST OF WARROAD. SOME OF THESE THUNDERSTORMS
MAY ALSO CONTAIN SMALL HAIL AND GUSTY WINDS.
&&
BOATERS...ESPECIALLY ON THE UPPER AND LOWER RED LAKES SHOULD BE READY
TO SEEK SAFE HARBOR IF THESE THUNDERSTORMS APPROACH.

THESE SHOWERS AND THUNDERSTORMS WERE MOVING MOSTLY EAST AT AROUND
30 MILES AN HOUR AND PERSONS OVER BELTRAMI...EASTERN ROSEAU...EASTERN
POLK AND NORTHERN CLEARWATER SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER THROUGH 730 PM.
SPIES
Special weather statement, Aug 18, 6:46 PM CDT, 18 minutes before
SPECIAL WEATHER STATEMENT AND SHORT TERM FORECAST
NATIONAL WEATHER SERVICE FARGO ND
640 PM CDT FRI AUG 18 1995

NDZ007-008-016-026>030-038-039-049-052-053-MNZ001>004-
007>009-013>017-022>024-027>032-039-040-190040-
EASTERN NORTH DAKOTA AND THE NORTHWEST QUARTER OF MINNESOTA

.NOW...
AT 628 PM CDT...SCATTERED THUNDERSTORMS...SOME WHICH CONTAINED VERY
HEAVY RAIN CONTINUED OVER PARTS OF NORTHWEST AND NORTH CENTRAL
MINNESOTA...A PORTION OF NORTHEAST AND EXTREME SOUTHEAST NORTH DAKOTA.

THE THUNDERSTORMS WHICH CONTAINED VERY HEAVY RAIN WERE GENERALLY OVER
AN AREA BETWEEN WARROAD AND BEMIDJI...FROM JUST SOUTHWEST OF THE LOWER
RED LAKE AND A FEW JUST SOUTWEST OF WARROAD. SOME OF THESE THUNDERSTORMS
MAY ALSO CONTAIN SMALL HAIL AND GUSTY WINDS.
&&
BOATERS...ESPECIALLY ON THE UPPER AND LOWER RED LAKES SHOULD BE READY
TO SEEK SAFE HARBOR IF THESE THUNDERSTORMS APPROACH.

THESE SHOWERS AND THUNDERSTORMS WERE MOVING MOSTLY EAST AT AROUND
30 MHILES AN HOUR AND PERSONS OVER BELTRAMI...EASTERN ROSEAU...EASTERN
POLK AND NORTHERN CLEARWATER SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER THROUGH 730 PM.
SPIES

Nearby

Severe Thunderstorm Warnings in Minnesota, 1995Every severe thunderstorm warning in 1995

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.