Alert archive / Minnesota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 1, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Apr 26, 1997, 7:24 PM CDT for Clay County, Minnesota. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 26, 1997, 7:24 PM CDT (00:24 UTC)
- Expired
- Apr 26, 1997, 7:50 PM CDT
- In force
- 26 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
County Clay County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 95 km from the middle of the area, began a volume at 00:24 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 0.4 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1673 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -22 m²/s²
- 0-3 km storm-relative helicity
- -12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
153 WUUS1 KFAR 270026 RRA SVRFAR MNC027-270050- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 724 PM CDT SAT APR 26 1997 THE NATIONAL WEATHER SERVICE IN EASTERN ND/GRAND FORKS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 750 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN WEST CENTRAL MINNESOTA ...NORTHERN CLAY COUNTY AT 723 PM A SEVERE THUNDERSTORM WAS ALONG THE NORTH DAKOTA/MINNESOTA BODER EAST OF ARGUSVILLE NORTH DAKOTA OR 15 MILES NORTH OF FARGO. CITIES IN THE PATH OF STORM INCLUDE GEORGETOWN AND FELTON MINNESOTA. THE STORM WAS MOVING NORTHEAST AT 25 MILES AN HOUR. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.
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, Apr 26, 4:56 PM CDT, 2 hours 28 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052-053-270000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 456 PM CDT SAT APR 26 1997 ...SMALL HAIL AND BRIEF HEAVY RAINS MOVING OVER THE LAKES COUNTRY AND SOUTHERN VALLEY... AT 440 PM SCATTERED THUNDERSTORMS...A FEW OF THEM STRONG...EXTENDED FROM NEAR BEMIDJI MINNESOTA SOUTHWEST TO JUST NORTH OF FARGO TO WEST OF LISBON. THE STRONGEST THUNDERSTORMS WERE IN THE FARGO AREA AND WEST OF LISBON NEAR ENGLEVALE. THESE THUNDERSTORMS WILL PRODUCE DEADLY LIGHTNING...MARBLE SIZED HAIL AND RAINFALLS UP TO ONE-HALF AN INCH. WHILE THE RAINFALLS WILL NOT AFFECT THE OVERALL FLOODING SITUATION... LOCALIZED STREET FLOODING MAY OCCUR AS MANY DRAINAGE SYSTEMS REMAIN NEAR MAXIMUM CAPACITY. THESE THUNDERSTORMS WILL AFFECT THE BEMIDJI...MAHNOMEN...LAKE PARK ...KINDRED AND LISBON AREAS THROUGH 630 PM. THUNDERSTORMS SHOULD MOVE OUT OF THE FARGO AREA BY 530 PM CDT. OTHER THUNDERSTORMS WERE MOVING ACROSS NORTH CENTRAL AND NORTHEAST NORTH DAKOTA...SCATTERED FROM THE CANADIAN BORDER NORTH OF LANGDON TO CANDO AND LEEDS NORTH DAKOTA. THESE THUNDERSTORMS WILL MOVE TO A WALHALLA ...DEVILS LAKE AND OBERRON LINE BY 630 PM. THE STRONGER STORMS WILL PRODUCE MARBLE SIZED HAIL AND RAINFALLS UP TO ONE-THIRD OF AN INCH. EWENS
Special weather statement, Apr 26, 4:59 PM CDT, 2 hours 25 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052-053-270000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 456 PM CDT SAT APR 26 1997 ...SMALL HAIL AND BRIEF HEAVY RAINS MOVING OVER THE LAKES COUNTRY AND SOUTHERN VALLEY... AT 440 PM SCATTERED THUNDERSTORMS...A FEW OF THEM STRONG...EXTENDED FROM NEAR BEMIDJI MINNESOTA SOUTHWEST TO JUST NORTH OF FARGO TO WEST OF LISBON. THE STRONGEST THUNDERSTORMS WERE IN THE FARGO AREA AND WEST OF LISBON NEAR ENGLEVALE. THESE THUNDERSTORMS WILL PRODUCE DEADLY LIGHTNING...MARBLE SIZED HAIL AND RAINFALLS UP TO ONE-HALF AN INCH. WHILE THE RAINFALLS WILL NOT AFFECT THE OVERALL FLOODING SITUATION... LOCALIZED STREET FLOODING MAY OCCUR AS MANY DRAINAGE SYSTEMS REMAIN NEAR MAXIMUM CAPACITY. THESE THUNDERSTORMS WILL AFFECT THE BEMIDJI...MAHNOMEN...LAKE PARK ...KINDRED AND LISBON AREAS THROUGH 630 PM. THUNDERSTORMS SHOULD MOVE OUT OF THE FARGO AREA BY 530 PM CDT. OTHER THUNDERSTORMS WERE MOVING ACROSS NORTH CENTRAL AND NORTHEAST NORTH DAKOTA...SCATTERED FROM THE CANADIAN BORDER NORTH OF LANGDON TO CANDO AND LEEDS NORTH DAKOTA. THESE THUNDERSTORMS WILL MOVE TO A WALHALLA ...DEVILS LAKE AND OBERRON LINE BY 630 PM. THE STRONGER STORMS WILL PRODUCE MARBLE SIZED HAIL AND RAINFALLS UP TO ONE-THIRD OF AN INCH. EWENS
Special weather statement, Apr 26, 5:52 PM CDT, 1 hour 32 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052-053-270045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 552 PM CDT SAT APR 26 1997 ...WIDELY SCATTERED STRONG THUNDERSTORMS CONTINUE OVER THE REGION... AT 550 PM A STRONG THUNDERSTORM WAS NEAR CANDO NORTH DAKOTA...35 MILES NORTHWEST OF DEVILS LAKE. THIS STORM WILL MOVE EAST AND AFFECT THE STARKWEATHER AREA THROUGH 630 PM CDT. STRONG WINDS...PEA SIZED HAIL AND BRIEF VERY HEAVY RAINS WILL ACCOMPANY THIS STORM. OTHER THUNDERSTORMS CONTINUED FROM THE UPPER LAKES TO THE FARGO AREA THEN TO LISBON. THESE STORMS WERE MOVING NORTHEAST AND A FEW WILL CONTAIN PEA SIZED HAIL AND BRIEF HEAVY RAIN. NOAH
Special weather statement, Apr 26, 5:54 PM CDT, 1 hour 30 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052-053-270045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 552 PM CDT SAT APR 26 1997 ...WIDELY SCATTERED STRONG THUNDERSTORMS CONTINUE OVER THE REGION... AT 550 PM A STRONG THUNDERSTORM WAS NEAR CANDO NORTH DAKOTA...35 MILES NORTHWEST OF DEVILS LAKE. THIS STORM WILL MOVE EAST AND AFFECT THE STARKWEATHER AREA THROUGH 630 PM CDT. STRONG WINDS...PEA SIZED HAIL AND BRIEF VERY HEAVY RAINS WILL ACCOMPANY THIS STORM. OTHER THUNDERSTORMS CONTINUED FROM THE UPPER LAKES TO THE FARGO AREA THEN TO LISBON. THESE STORMS WERE MOVING NORTHEAST AND A FEW WILL CONTAIN PEA SIZED HAIL AND BRIEF HEAVY RAIN. NOAH
Special weather statement, Apr 26, 6:36 PM CDT, 48 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052-053-270130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 636 PM CDT SAT APR 26 1997 ...WIDELY SCATTERED STRONG THUNDERSTORMS CONTINUE OVER THE REGION... AT 630 PM A STRONG THUNDERSTORM WAS BETWEEN CHURCHS FERRY AND PENN...ABOUT 15 MILES NORTHWEST OF DEVILS LAKE. THIS STORM WILL AFFECT THE DEVILS LAKE AND WEBSTER AREAS WITH BRIEF HEAVY RAIN...SMALL HAIL...DEADLY LIGHTNING AND WIND GUSTS TO NEAR 45 MPH. OTHER STRONG THUNDERSTORMS WERE OVER SOUTHWEST CASS/NORTHERN RANSOM COUNTY LINE AREA...25 MILES SOUTHWEST OF FARGO NEAR LEONARD. THIS STORM WILL AFFECT WALCOTT AND HICKSON AREAS BETWEEN 7 AND 730 PM. A STRONG THUNDERSTORM WAS OVER NORTHWEST BECKER COUNTY IN THE OGEMA AREA...25 MILES NORTHWEST OF DETROIT LAKES MINNESOTA. BRIEF HEAVY RAIN...SMALL HAIL...DEADLY LIGHTNING AND WIND GUSTS TO NEAR 45 MPH ARE POSSIBLE WITH THE STRONGER THUNDERSTORMS. RAINFALLS OF UP TO ONE-HALF AN INCH IN UNDER ONE HOUR ARE ALSO POSSIBLE WITH THE STRONGER STORMS. ALTHOUGH THIS WILL HAVE A MINIMAL AFFECT ON THE OVERALL FLOODING,,,LOCALIZED STREET FLOODING AND PONDING OF WATER IS LIKELY DUE TO THE FACT THAT MANY STORM DRAINAGE SYSTEMS REMAIN AT MAXIMUM CAPACITY. EWENS
Special weather statement, Apr 26, 6:38 PM CDT, 46 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052-053-270130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 636 PM CDT SAT APR 26 1997 ...WIDELY SCATTERED STRONG THUNDERSTORMS CONTINUE OVER THE REGION... AT 630 PM A STRONG THUNDERSTORM WAS BETWEEN CHURCHS FERRY AND PENN...ABOUT 15 MILES NORTHWEST OF DEVILS LAKE. THIS STORM WILL AFFECT THE DEVILS LAKE AND WEBSTER AREAS WITH BRIEF HEAVY RAIN...SMALL HAIL...DEADLY LIGHTNING AND WIND GUSTS TO NEAR 45 MPH. OTHER STRONG THUNDERSTORMS WERE OVER SOUTHWEST CASS/NORTHERN RANSOM COUNTY LINE AREA...25 MILES SOUTHWEST OF FARGO NEAR LEONARD. THIS STORM WILL AFFECT WALCOTT AND HICKSON AREAS BETWEEN 7 AND 730 PM. A STRONG THUNDERSTORM WAS OVER NORTHWEST BECKER COUNTY IN THE OGEMA AREA...25 MILES NORTHWEST OF DETROIT LAKES MINNESOTA. BRIEF HEAVY RAIN...SMALL HAIL...DEADLY LIGHTNING AND WIND GUSTS TO NEAR 45 MPH ARE POSSIBLE WITH THE STRONGER THUNDERSTORMS. RAINFALLS OF UP TO ONE-HALF AN INCH IN UNDER ONE HOUR ARE ALSO POSSIBLE WITH THE STRONGER STORMS. ALTHOUGH THIS WILL HAVE A MINIMAL AFFECT ON THE OVERALL FLOODING,,,LOCALIZED STREET FLOODING AND PONDING OF WATER IS LIKEfLY DUE TO THE FACT THAT MANY STORM DRAINAGE SYSTEMS REMAIN AT MAXIMUM CAPACITY. EWENS
Nearby
Severe Thunderstorm Warnings in Minnesota, 1997Every severe thunderstorm warning in 1997
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; radar from the NEXRAD Level II archive.