Alert archive / North Dakota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 5, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 1, 1997, 3:50 PM CDT for Cavalier County, Towner County, North Dakota. It was in force for 25 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
- Jun 1, 1997, 3:50 PM CDT (20:50 UTC)
- Expired
- Jun 1, 1997, 4:15 PM CDT
- In force
- 25 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
Counties Cavalier County, ND, Towner County, ND
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 8.8 hours before the alert went out and 258 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
- 123 J/kg
- Mixed-layer CIN
- -243 J/kg
- Mixed-layer LCL
- 1893 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 170 m²/s²
- 0-3 km storm-relative helicity
- 162 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
674 WUUS1 KFAR 012049 RRA SVRFAR NDC095-019-012115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 350 PM CDT SUN JUN 1 1997 THE NATIONAL WEATHER SERVICE IN EASTERN ND/GRAND FORKS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 415 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTH CENTRAL NORTH DAKOTA ...TOWNER COUNTY IN NORTHEAST NORTH DAKOTA ...WESTERN CAVALIER COUNTY AT 3:45 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM JUST NORTH OF CANDO...35 MILES NORTHWEST OF DEVILS LAKE. THIS STORM WAS MOVING NORTHEAST AT 20 MPH. THIS STORM WILL MOVE INTO THE EGELAND AREA BY 4:30 PM. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND OVER 57 MPH...HAIL 3/4 INCH IN DIAMETER OR LARGER...TORNADOES...DEADLY LIGHTNING...AND VERY HEAVY RAIN. MOVE TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. WP
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.
NWS Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 1, 2:58 PM CDT, 52 minutes earlier.
Area forecast discussion, Jun 1, 2:58 PM CDT, 52 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 245 PM CDT SUN JUN 1 1997 FCST CONCERNS FOR FIRST PD WL BE DEVELOPMENT OF THUNDERSTORMS AND THE POTENTIAL FOR HEAVY RAINFALL. ETA/NGM GRIDDED DATA SHOWS PRECIPITABLE WATER VALUES RANGING FROM 1.0-1.4 DURING NEXT 12 HOURS. THETA E RIDGE IN ETA MODEL SETS UP OVER EASTERN NORTH DAKOTA AND REMAINS THERE FOR THE NEXT 24-36 HOURS. NGM HAS REGION BECOMING MORE STABLE QUICKER...BUT STILL PLACES THETA E RIDGE IN RED RIVER VALLEY FOR OVERNIGHT TONIGHT. LOW LEVELS ARE BECOMING JUICEY OVER NORTHCENTRAL SOUTH DAKOTA WITH DEWPOINTS IN THE MID 60S. SHOWERS ARE ALREADY DEVELPG WEST OF CWA. ALSO WILL HAVE TO WATCH STORMS IN EXTREME SOUTHEAST MANITOBA THAT COULD TRAVEL THROUGH LAKE OF THE WOOD COUNTY THIS AFTERNOON. TEMPERATURES ROSE INTO MID TO UPPER 80S ACROSS MOST OF THE REGION THIS AFTERNOON AND OVERNIGHT LOWS TONIGHT WILL BE AFFECTED BY CLOUD COVER AND RAIN COOLED AIR. LOWS OF 55 TO 60 STILL SEEM REASONABLE. WILL NEED TO CONTINUE WATCH ON DEVLPMENT TO SOUTH AND WEST OF CWA...OVER NEBRASKA AND SOUTH DAKOTA TO SEE HOW DYNAMICS WILL BE AFFECTED. BIGGER PROBLEM TONIGHT MAY BE IF THIS SYS STALLS IN CWA OVERNIGHT AND SETS UP TO PRODUCE HEAVY RAINFALL. WILL HAVE TO WATCH FLASH FLOOD GUIDANCE VALUES CLOSELY. WP
In the hours before
Special weather statement, Jun 1, 1:00 PM CDT, 2 hours 50 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052-053-020000- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 100 PM CDT SUN JUN 1 1997 ...THUNDERSTORMS EXPECTED TO DEVELOP AND MOVE INTO EASTERN NORTH DAKOTA BY LATE AFTERNOON... A FRONTAL BOUNDARY MOVING EASTWARD ACROSS WESTERN NORTH DAKOTA WILL APPROACH THE RED RIVER VALLEY REGION BY LATE THIS AFTERNOON. A LINE OF THUNDERSTORMS IS EXPECTED TO DEVELOP AND PUSH EASTWARD TO ROUGHLY A LANGDON...DEVILS LAKE...NEW ROCKFORD LINE BY AROUND 4 PM. THESE STORMS ARE THEN EXPECTED TO CONTINUE MOVING TO THE EAST...APPROACHING THE RED RIVER BY AROUND 6 PM. THE EASTWARD PROGRESSION OF THESE STORMS IS THEN EXPECTED TO STALL OUT OVER EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA DURING THE EVENING HOURS. AT THIS TIME...IT APPEARS THE BEST CHANCE FOR ANY THUNDERSTORMS REACHING THE SEVERE LEVEL WILL BE SOUTH OF THE RED RIVER VALLEY REGION ACROSS SOUTH DAKOTA AND INTO NEBRASKA. HOWEVER...THE STORMS OVER THE RED RIVER VALLEY AREA WILL STILL BE CAPABLE OF PRODUCING SMALL HAIL...GUSTY WINDS TO 40 MPH...AND HEAVY RAIN. CONDITIONS WILL CONTINUE TO BE CLOSELY MONITORED THROUGH THE AFTERNOON AND EVENING HOURS. WP
Special weather statement, Jun 1, 1:02 PM CDT, 2 hours 48 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052-053-020000- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 100 PM CDT SUN JUN 1 1997 ...THUNDERSTORMS EXPECTED TO DEVELOP AND MOVE INTO EASTERN NORTH DAKOTA BY LATE AFTERNOON... A FRONTAL BOUNDARY MOVING EASTWARD ACROSS WESTERN NORTH DAKOTA WILL APPROACH THE RED RIVER VALLEY REGION BY LATE THIS AFTERNOON. A LINE OF THUNDERSTORMS IS EXPECTED TO DEVELOP AND PUSH EASTWARD TO ROUGHLY A LANGDON...DEVILS LAKE...NEW ROCKFORD LINE BY AROUND 4 PM. THESE STORMS ARE THEN EXPECTED TO CONTINUE MOVING TO THE EAST...APPROACHING THE RED RIVER BY AROUND 6 PM. THE EASTWARD PROGRESSION OF THESE STORMS IS THEN EXPECTED TO STALL OUT OVER EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA DURING THE EVENING HOURS. AT THIS TIME...IT APPEARS THE BEST CHANCE FOR ANY THUNDERSTORMS REACHING THE SEVERE LEVEL WILL BE SOUTH OF THE RED RIVER VALLEY REGION ACROSS SOUTH DAKOTA AND INTO NEBRASKA. HOWEVER...THE STORMS OVER THE RED RIVER VALLEY AREA WILL STILL BE CAPABLE OF PRODUCING SMALL HAIL...GUSTY WINDS TO 40 MPH...AND HEAVY RAIN. CONDITIONS WILL CONTINUE TO BE CLOSELY MONITORED THROUGLH THE AFTERNOON AND EVENING HOURS. WP
Nearby
Severe Thunderstorm Warnings in North Dakota, 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.