Alert archive / North Dakota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 154, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Aug 31, 1997, 7:57 PM CDT for Stutsman County, North Dakota. It was in force for 33 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
- Aug 31, 1997, 7:57 PM CDT (00:57 UTC)
- Expired
- Aug 31, 1997, 8:30 PM CDT
- In force
- 33 min
- Issued by
- NWS Bismarck, ND
- Area
- Whole counties
County Stutsman County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 138 km from the middle of the area, began a volume at 01:00 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 31, 8:00 PM CDT | Hail 0.75 | Buchanan, ND |
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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 31, 4:30 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 1.0 hours before the alert went out and 134 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
- 1215 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 1935 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.2
The text
As transmitted, in the capitals the NWS used until 2016.
632 WUUS1 KBIS 010058 RRA SVRBIS NDC093-010130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BISMARCK ND 757 PM CDT SUN AUG 31 1997 THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 830 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN EAST CENTRAL NORTH DAKOTA ...SOUTHEASTERN STUTSMAN COUNTY AT 755 PM CDT A SEVERE THUNDERSTORM WAS LOCATED 5 MILES SOUTHEAST OF JAMESTOWN. THE STORM WAS MOVING EAST AT 20 MPH. TOWNS IN OR NEAR THE PATH OF THE STORM INCLUDE YPSILANTI AND MONTPELIER. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. HINTZ/LEBLANG
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, Aug 31, 6:25 PM CDT, 1 hour 32 minutes before
NDZ004-005-012-013-022-023-010030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 625 PM CDT SUN AUG 31 1997 ...TORNADO WATCH CANCELLED FOR PORTIONS OF NORTHCENTRAL NORTH DAKOTA... THE TORNADO WATCH THAT WAS IN EFFECT FOR PORTIONS OF NORTHCENTRAL NORTH DAKOTA HAS BEEN CANCELLED. COUNTIES NO LONGER IN THE WATCH INCLUDE BOTTINEAU...MCHENERY...SHERIDAN...WELLS...PIERCE AND ROLETTE. THUNDERSTORMS ARE STILL POSSIBLE THIS EVENING IN THE ABOVE MENTIONED COUNTIES. HINTZ
Special weather statement, Aug 31, 6:27 PM CDT, 1 hour 30 minutes before
NDZ004-005-012-013-022-023-010030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 625 PM CDT SUN AUG 31 1997 ...TORNADO WATCH CANCELLED FOR PORTIONS OF NORTHCENTRAL NORTH DAKOTA... THE TORNADO WATCH THAT WAS IN EFFECT FOR PORTIONS OF NORTHCENTRAL NORTH DAKOTA HAS BEEN CANCELLED. COUNTIES NO LONGER IN THE WATCH INCLUDE BOTTINEAU...MCHENERY...SHERIDAN...WELLS...PIERCE AND ROLETTE. THUNDERSTORMS ARE STILL POSSIBLE THIS EVENING IN THE ABOVE MENTIONED COUNTIES. HINTZ
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 31, 7:16 PM CDT | Tornado Warning | BIS | Stutsman | 44 min |
| Aug 31, 7:31 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder | 44 min |
| Aug 31, 8:13 PM CDT | Severe Thunderstorm Warning | BIS | Kidder | 47 min |
| Aug 31, 8:27 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh | 48 min |
| Aug 31, 8:57 PM CDT | Tornado Warning | BIS | Stutsman | 33 min |
| Aug 31, 9:06 PM CDT | Severe Thunderstorm Warning | BIS | Kidder | 69 min |
| Aug 31, 9:13 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh | 47 min |
| Aug 31, 9:31 PM CDT | Severe Thunderstorm Warning | BIS | Logan, Stutsman | 44 min |
| Aug 31, 10:04 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure | 41 min |
| Aug 31, 10:41 PM CDT | Severe Thunderstorm Warning | BIS | Dickey | 64 min |
| Aug 31, 10:47 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure | 43 min |
| Sep 1, 12:49 AM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 41 min |
| Sep 1, 12:54 AM CDT | Severe Thunderstorm Warning | BIS | Logan, McIntosh | 51 min |
| Sep 1, 1:31 AM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 14 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.