Alert archive / North Dakota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 100, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Jul 23, 1997, 9:36 AM CDT for Bottineau County, North Dakota. It was in force for 54 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
- Jul 23, 1997, 9:36 AM CDT (14:36 UTC)
- Expired
- Jul 23, 1997, 10:30 AM CDT
- In force
- 54 min
- Issued by
- NWS Bismarck, ND
- Area
- Whole counties
County Bottineau County, ND
The radar
The Minot AFB radar (KMBX), 44 km from the middle of the area, began a volume at 14:35 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
Bismarck Municip, ND (KBIS), launched 12:00Z, 2.6 hours before the alert went out and 225 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
- 1164 J/kg
- Mixed-layer CIN
- -197 J/kg
- Mixed-layer LCL
- 600 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.8
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, Jul 23, 4:58 AM CDT, 4 hours 38 minutes before
NDZ001>005-009>013-017>023-025-031>037-040>048-050-051-231800- SEVERE WEATHER OUTLOOK FOR WEST AND CENTRAL NORTH DAKOTA NATIONAL WEATHER SERVICE BISMARCK ND 500 AM CDT WED JUL 23 1997 ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER WESTERN AND CENTRAL NORTH DAKOTA TODAY AND TONIGHT... FORECAST...THUNDERSTORMS WILL DEVELOP OVER WESTERN NORTH DAKOTA THIS AFTERNOON AND MOVE EAST INTO CENTRAL NORTH DAKOTA BY LATE AFTERNOON AND EARLY EVENING. DISCUSSION...A FRONTAL SYSTEM OVER EASTERN MONTANA WILL MOVE INTO WESTERN NORTH DAKOTA THIS AFTERNOON. WITH WARM TEMPERATURES AND ABUNDANT MOISTURE AHEAD OF THE FRONT THE STAGE WILL BE SET FOR THUNDERSTORM DEVELOPMENT ACROSS WESTERN NORTH DAKOTA THIS AFTERNOON. ALTHOUGH SHEARING WILL NOT BE STRONG...WITH SUCH AN UNSTABLE AIRMASS THE POTENTIAL EXISTS FOR SOME STORMS TO BECOME SEVERE WITH DAMAGING WINDS AND LARGE HAIL. < WEATHER SPOTTERS OVER WESTERN AND CENTRAL NORTH DAKOTA SHOULD PREPAREJ FOR POSSIBLE ACTIVATION THIS AFTERNOON AND EVENING. THIS PRODUCT IS FOR PLANNING PURPOSES ONLY. LISTEN FOR LATER FORECASTS AND POSSIBLE WARNINGS. TWH
Special weather statement, Jul 23, 5:00 AM CDT, 4 hours 36 minutes before
NDZ001>005-009>013-017>023-025-031>037-040>048-050-051-231800- SEVERE WEATHER OUTLOOK FOR WEST AND CENTRAL NORTH DAKOTA NATIONAL WEATHER SERVICE BISMARCK ND 500 AM CDT WED JUL 23 1997 ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER WESTERN AND CENTRAL NORTH DAKOTA TODAY AND TONIGHT... FORECAST...THUNDERSTORMS WILL DEVELOP OVER WESTERN NORTH DAKOTA THIS AFTERNOON AND MOVE EAST INTO CENTRAL NORTH DAKOTA BY LATE AFTERNOON AND EARLY EVENING. DISCUSSION...A FRONTAL SYSTEM OVER EASTERN MONTANA WILL MOVE INTO WESTERN NORTH DAKOTA THIS AFTERNOON. WITH WARM TEMPERATURES AND ABUNDANT MOISTURE AHEAD OF THE FRONT THE STAGE WILL BE SET FOR THUNDERSTORM DEVELOPMENT ACROSS WESTERN NORTH DAKOTA THIS AFTERNOON. ALTHOUGH SHEARING WILL NOT BE STRONG...WITH SUCH AN UNSTABLE AIRMASS THE POTENTIAL EXISTS FOR SOME STORMS TO BECOME SEVERE WITH DAMAGING WINDS AND LARGE HAIL. < WEATHER SPOTTERS OVER WESTERN AND CENTRAL NORTH DAKOTA SHOULD PREPARE FOR POSSIBLE ACTIVATION THIS AFTERNOON AND EVENING. THIS PRODUCT IS FOR PLANNING PURPOSES ONLY. LISTEN FOR LATER FORECASTS AND POSSIBLE WARNINGS. TWH
Special weather statement, Jul 23, 8:25 AM CDT, 1 hour 11 minutes before
NDZ002>004-231430- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 825 AM CDT WED JUL 23 1997 ...STRONG THUNDERSTORM ALONG THE INTERNATIONAL BORDER... AT 820 AM CDT DOPPLER WEATHER RADAR INDICATED A STRONG THUNDERSTORM 70 MILES NORTHWEST OF MINOT NEAR THE TOWN OF NORTHGATE IN NORTHEASTERN BURKE COUNTY. THE STORM WAS MOVING EAST AT 30 MPH AND WILL PASS NEAR THE TOWNS OF FLAXTON...BOWBELLS...AND SHERWOOD. THIS STORM WILL PRODUCE HAIL TO 1/2 INCH...GUSTY WINDS TO 50 MPH...AND VERY HEAVY RAIN WITH ITS PASSAGE. IF THREATENING WEATHER APPROACHES SEEK SHELTER INDOORS IMMEDIATELY. LEBLANG
Special weather statement, Jul 23, 8:26 AM CDT, 1 hour 10 minutes before
NDZ002>004-231430- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 825 AM CDT WED JUL 23 1997 ...STRONG THUNDERSTORM ALONG THE INTERNATIONAL BORDER... AT 820 AM CDT DOPPLER WEATHER RADAR INDICATED A STRONG THUNDERSTORM 70 MILES NORTHWEST OF MINOT NEAR THE TOWN OF NORTHGATE IN NORTHEASTERN BURKE COUNTY. THE STORM WAS MOVING EAST AT 30 MPH AND WILL PASS NEAR THE TOWNS OF FLAXTON...BOWBELLS...AND SHERWOOD. THIS STORM WILL PRODUCE HAIL TO 1/2 INCH...GUSTY WINDS TO 50 MPH...AND VERY HEAVY RAIN WITH ITS PASSAGE. IF THREATENING WEATHER APPROACHES SEEK SHELTER INDOORS IMMEDIATELY. LEBLANG
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 8:57 AM CDT | Severe Thunderstorm Warning | BIS | Burke, Renville | 63 min |
| Jul 23, 5:36 PM CDT | Severe Thunderstorm Warning | BIS | Renville | 54 min |
| Jul 23, 6:37 PM CDT | Severe Thunderstorm Warning | BIS | Renville | 68 min |
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; radar from the NEXRAD Level II archive.