Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 41, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 2, 1994, 8:37 PM CDT for Clay County, Minnesota. It was in force for 38 min.
The area
The counties it named.
The facts
- Issued
- Aug 2, 1994, 8:37 PM CDT (01:37 UTC)
- Expired
- Aug 2, 1994, 9:15 PM CDT
- In force
- 38 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
County Clay County, MN
The nearest sounding before it
Aberdeen, SD (KHON), launched 00:00Z, 1.6 hours before the alert went out and 266 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.
- Mixed-layer CAPE
- 558 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1697 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 92 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS1 KFAR 030137 RRA
SVRFAR
MNC027-030215-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FARGO ND
837 PM CDT TUE AUG 2 1994
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 915 PM CDT FOR PEOPLE IN THE FOLLOWING
COUNTY
IN THE NORTHWEST PART OF MINNESOTA
CLAY
AT 835 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED BY RADAR 2 MILES
WEST OF SABIN MINNESOTA. THIS STORM WAS MOVING TO THE NORTHEAST AT
25 MILES AN HOUR.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.
NORDLANDWhat 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 2, 6:38 PM CDT, 1 hour 59 minutes before
NDZ007-008-016-026>030-038-039-048-049-051>053-MNZ001>004- 007>009-013>017-022>024-027>032-039>041-047-030045- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE FARGO ND 638 PM CDT TUE AUG 2 1994 ...ISOLATED THUNDERSTORMS MAY CAUSE BRIEF BUT STRONG GUSTY WINDS... AT 625 PM CDT...ISOLATED THUNDERSTORMS WITH HEAVY RAINS CONTINUED ACROSS NORTHWEST AND WEST CENTRAL MINNESOTA. THE STRONGEST THUNDERSTORMS WERE 60 MILES SOUTHWEST OF ALEXANDRIA AND FROM 40 MILES NORTHEAST TO 20 MILES EAST OF FARGO...IN THE TWIN VALLEY AND HITTERDAL AREAS. MOVEMENT WAS EAST AT 25 MILES AN HOUR. SINCE 530 PM CDT THUNDERSTORMS HAVE RAPIDLY DEVELOPED...THEN BECOME QUITE STRONG FOR A VERY BRIEF PERIOD OF TIME...ONLY 10 TO 15 MINUTES...BEFORE DISSIPATING AS FAST. ONE SUCH THUNDERSTORM DEVELOPED AND DISSIPATED IN THE SPACE OF 35 MINUTES PRODUCING VERY STRONG WINDS IN THE PERHAM AND OTTER TAIL AREAS OF OTTERTAIL COUNTY IN WEST CENTRAL MINNESOTA. CONDITIONS WILL REMAIN FAVORABLE THROUGH MUCH OF THE EVENING HOURS FOR THIS TYPE OF THUNDERSTORM...TERMED A PULSE THUNDERSTORM...TO OCCUR. THEREFORE...BOATERS AND OTHER OUTDOOR ENTHUSIASTS ESPECIALLY THOSE IN THE LAKES REGION...SHOULD BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS AND SEEK SAFE SHELTER OR HARBOR AS NECESSARY. STAY TUNED TO RADIO AND T.V. AS WELL AS NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS. EWENS
Special weather statement, Aug 2, 7:37 PM CDT, 1 hour before
NDZ007-008-016-026>030-038-039-048-049-051>053-MNZ001>004- 007>009-013>017-022>024-027>032-039>041-047-030145- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE FARGO ND 738 PM CDT TUE AUG 2 1994 ...ISOLATED THUNDERSTORMS MAY CAUSE BRIEF BUT STRONG GUSTY WINDS... AT 725 PM CDT...AN ISOLATED THUNDERSTORM WITH VERY HEAVY RAINS WAS 45 MILES SOUTHWEST OF ALEXANDRIA OR NEAR GRACEVILLE MINNESOTA. THIS STORM WAS MOVING NORTHEAST AT 25 MILES AN HOUR AND WILL BE NEAR MORRIS BY 830PM THIS EVENING. OTHERWISE ISOLATED THUNDERSHOWERS CONTINUED OVER NORTHWEST MINNESOTA. MOST OF THE PRECIPITATION WAS IN THE DETROIT LAKES/TWIN VALLEY AREAS. MOVEMENT WAS EAST AT 25 MILES AN HOUR. DURING THE EARLY EVENING ISOLATED THUNDERSTORMS HAVE RAPIDLY DEVELOPED...BECOME QUITE STRONG FOR A BRIEF PERIOD OF TIME BEFORE DISSIPATING AS FAST. CONDITIONS WILL REMAIN FAVORABLE THROUGH THE EVENING HOURS FOR THIS TYPE OF THUNDERSTORM...TERMED A PULSE THUNDERSTORM...TO OCCUR. THEREFORE...BOATERS AND OTHER OUTDOOR ENTHUSIASTS ESPECIALLY THOSE IN THE LAKES REGION...SHOULD BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS AND SEEK SAFE SHELTER OR HARBOR AS NECESSARY. STAY TUNED TO RADIO AND T.V. AS WELL AS NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS. EWENS
Special weather statement, Aug 2, 7:38 PM CDT, 59 minutes before
NDZ007-008-016-026>030-038-039-048-049-051>053-MNZ001>004- 007>009-013>017-022>024-027>032-039>041-047-030145- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE FARGO ND 738 PM CDT TUE AUG 2 1994 ...ISOLATED THUNDERSTORMS MAY CAUSE BRIEF BUT STRONG GUSTY WINDS... AT 725 PM CDT...AN ISOLATED THUNDERSTORM WITH VERY HEAVY RAINS WAS 45 MILES SOUTHWEST OF ALEXANDRIA OR NEAR GRACEVILLE MINNESOTA. THIS STORM WAS MOVING NORTHEAST AT 25 MILES AN HOUR AND WILL BE NEAR MORRIS BY 830PM THIS EVENING. OTHERWISE ISOLATED THUNDERSHOWERS CONTINUED OVER NORTHWEST MINNESOTA. MOST OF THE PRECIPITATION WAS IN THE DETROIT LAKES/TWIN VALLEY AREAS. MOVEMENT WAS EAST AT 25 MILES AN HOUR. DURING THE EARLY EVENING ISOLATED THUNDERSTORMS HAVE RAPIDLY DEVELOPED...BECOME QUITE STRONG FOR A BRIEF PERIOD OF TIME BEFORE DISSIPATING AS FAST. CONDITIONS WILL REMAIN FAVORABLE THROUGH THE EVENING HOURS FOR THIS TYPE OF THUNDERSTORM...TERMED A PULSE THUNDERSTORM...TO OCCUR. THEREFORE...BOATERS AND OTHER OUTDOOR ENTHUSIASTS ESPECIALLY THOSE IN THE LAKES REGION...SHOULD BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS AND SEEK SAFE SHELTER OR HARBOR AS NECESSARY. STAY TUNED TO RADIO AND T.V. AS WELL AS NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS. EWENS
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 7:59 PM CDT | Severe Thunderstorm Warning | FGF | Clay | 31 min |
| Aug 2, 8:13 PM CDT | Tornado Warning | FGF | Clay | 32 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1994Every severe thunderstorm warning in 1994
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.