Alert archive / Minnesota / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 46, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 26, 1991, 2:35 AM CDT for Lake of the Woods County, Roseau County, Minnesota. It was in force for 40 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 26, 1991, 2:35 AM CDT (07:35 UTC)
- Expired
- Jun 26, 1991, 3:15 AM CDT
- In force
- 40 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 26, 3:15 AM CDT | Thunderstorm Wind 0 | Roseau, 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
Bismarck Municip, ND (KBIS), launched 00:00Z, 7.6 hours before the alert went out and 457 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
- 3404 J/kg
- Mixed-layer CIN
- -68 J/kg
- Mixed-layer LCL
- 1292 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 130 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 9.9
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, 8:48 PM CDT, 5 hours 47 minutes before
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</html>Special weather statement, Jun 26, 12:43 AM CDT, 1 hour 52 minutes before
NDZ012-013-014-015-016-017-018-MNZ001-006-007-010-011-013-260645- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE FARGO ND 1240 AM CDT WED JUN 26 1991 ...SEVERE THUNDERSTORM WATCH FOR EASTERN NORTH DAKOTA AND PART OF NORTHWEST MINNESOTA UNTIL 500 AM CDT... AT 1227 AM CDT...ISOLATED INTENSE THUNDERSTORMS WERE OVER PARTS OF EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA. THE INTENSE THUNDERSTORMS WERE LOCATED JUST NORTH OF GRAND FORKS ...40 MILES NORTHWEST OF JAMESTOWN NORTH DAKOTA...AND 55 MILES NORTH OF THIEF RIVER FALLS MINNESOTA. IN ADDITION TO VERY HEAVY RAIN THESE STORMS COULD PRODUCE HAIL...STRONG WIND GUSTS..AND FREQUENT DANGEROUS LIGHTING STRIKES. MOVMENT OF THE STORMS WAS NORTHEAST AT 40 MILES AN HOUR. THE STORMS WILL NEAR THE TOWNS OF MCHENRY NORTH DAKOTA...40 MILES NORTH OF JAMESTOWN...AND KARLSTAD MINNESOTA...35 MILES NORTHWEST OF THIEF RIVER FALLS BY 130 AM CDT. IF YOU ARE IN OR NEAR ONE OF THE TOWNS MENTIONED...YOU SHOULD BE ALERT FOR THE POSSIBLITY OF THE ABOVE WEATHER CONDITIONS. KEEP IN MIND THE THE SEVERE THUNDERSTORM WATCH AND STAY TUNED FOR FURTHER UPDATES ON THESE INTENSE THUNDERSTORMS...AND POSSIBLE WARNINGS...ON YOUR LOHCAL TV...RADIO...AND NOAA WEATHER RADIO STATIONS. DM
Special weather statement, Jun 26, 1:40 AM CDT, 55 minutes before
NDZ012-013-014-015-016-017-018-MNZ001-006-007-010-011-013-260745- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE FARGO ND 137 AM CDT WED JUN 26 1991 ...SEVERE THUNDERSTORM WATCH FOR EASTERN NORTH DAKOTA AND PART OF NORTHWEST MINNESOTA UNTIL 500 AM CDT... AT 127 AM CDT...ISOLATED INTENSE THUNDERSTORMS CONTINUED OVER PARTS OF NORTHEAST NORTH DAKOTA AND NORTHWEST MINNESOTA. THE INTENSE THUNDERSTORMS WERE LOCATED 45 MILES WEST OF GRAND FORKS NORTH DAKOTA...20 MILES NORTHWEST AND 50 MILES NORTH OF THIEF RIVER FALLS MINNESOTA. IN ADDITION TO VERY HEAVY RAIN THESE STORMS COULD PRODUCE HAIL...STRONG WIND GUSTS..AND FREQUENT DANGEROUS LIGHTING STRIKES. AT 125 AM CDT PEA TO MARBLE SIZE HAIL FELL AT LAKOTA NORTH DAKOTA...45 MILES WEST OF GRAND FORKS. MOVEMENT WAS NORTH EAST AT 40 MILES AN HOUR. THE STORMS WILL BE NEAR GRAFTON NORTH DAKOTA...MALUNG AND WARROAD MINNESOTA BY 230 AM CDT. IF YOU ARE IN OR NEAR ONE OF THE CITIES OR TOWNS MENTIONED...YOU SHOULD BE ALERT FOR THE POSSIBLITY OF THE ABOVE WEATHER CONDITIONS. KEEP IN MIND THE THE SEVERE THUNDERSTORM WATCH AND STAY TUNED FOR FURTHER UPDATES ON THESE INTENSE THUNDERSTORMS...AS WELL AS... POSSIBLE WARNINGS...ON YOUR LOCAL TV...RADIO...AND NOAA WEATHER RADIO STATIONS. OTHER SCATTERED THUNDERSTORMS AND RAIN SHOWERS WERE ALSO OVER EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA. THE THUNDERSTORMS AND SHOWERS EXTENDED FROM NEAR JAMESTOWN NORTH DAKOTA TO NEAR WARROAD MINNESOTA. THESE WERE ALSO MOVING NORTHEAST AT 40 MILES AN HOUR. DM
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 26, 3:10 AM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Lake of the Woods, Roseau | 65 min |
| Jun 26, 4:20 AM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Koochiching, Lake of the Woods | 55 min |
| Jun 26, 6:01 AM CDT | Severe Thunderstorm Warning | FGF | Polk | 59 min |
| Jun 26, 7:00 AM CDT | Severe Thunderstorm Warning | FGF | Polk | 60 min |
| Jun 26, 7:32 AM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Clearwater | 58 min |
| Jun 26, 7:33 AM CDT | Severe Thunderstorm Warning | FGF | Pennington, Red Lake | 47 min |
| Jun 26, 8:35 AM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Clearwater | 55 min |
| Jun 26, 8:59 AM CDT | Severe Thunderstorm Warning | FGF | Koochiching | 31 min |
| Jun 26, 9:44 AM CDT | Severe Thunderstorm Warning | FGF | Koochiching | 61 min |
| Jun 26, 5:13 AM CDT | Severe Thunderstorm Warning | FGF | Griggs, Steele | 62 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1991Every 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.