Alert archive / North Dakota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 71, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Jul 10, 1997, 8:00 PM CDT for McLean County, Mercer County, North Dakota. It was in force for 60 min. 2 reports 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
- Jul 10, 1997, 8:00 PM CDT (01:00 UTC)
- Expired
- Jul 10, 1997, 9:00 PM CDT
- In force
- 60 min
- Issued by
- NWS Bismarck, ND
- Area
- Whole counties
Counties McLean County, ND, Mercer County, ND
The radar
The Bismarck radar (KBIS), 98 km from the middle of the area, began a volume at 01:01 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 |
|---|---|---|---|
| Jul 10, 8:00 PM CDT | Tornado F0 | Golden Vly, ND | Tornado touched down 2 N of Golden Valley and moved to the north before dissipating. Tornado destroyed a pole barn and an airplane hanger. Strangely the airplane in the hanger only received a few scratches. |
| Jul 10, 8:02 PM CDT | Thunderstorm Wind 75 | Beulah, ND | Wind occurred 7 S Beulah |
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 |
|---|---|---|---|
| Jul 10, 7:45 PM CDT | Severe Thunderstorm 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 101 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
- 4434 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 1269 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 176 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBIS 110100 RRA SVRBIS NDC055-057-110200- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BISMARCK ND 800 PM CDT (700 PM MDT) THU JUL 10 1997 THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 900 PM CDT (800 PM MDT) FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN CENTRAL NORTH DAKOTA ...WESTERN MCLEAN COUNTY...NORTHERN MERCER COUNTY AT 755 CDT RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS IN WESTERN NORTH DAKOTA. THE LINE EXTENDS FROM 60 MILES SOUTHWEST OF MINOT OR 7 MILES WEST OF ZAP IN MERCER COUNTY TO 40 MILES SOUTHWEST OF MINOT NEAR THE TOWN OF RAUB IN MCLEAN COUNTY. THE LINE IS MOVING TO THE NORTHEAST AT 25 MPH. TOWNS IN OR NEAR THE PATH OF THIS STORM INCLUDE RAUB...ROSEGLEN... GARRISON...PICK CITY AND THE CENTRAL PART OF LAKE SAKAKAWEA. BOATERS ON THE LAKE SHOULD HEAD TOWARD SHORE NOW. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE PTORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. HINTZ
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 7:11 PM CDT | Severe Thunderstorm Warning | BIS | Dunn | 64 min |
| Jul 10, 7:45 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Mountrail | 60 min |
| Jul 10, 8:25 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Sioux | 65 min |
| Jul 10, 8:41 PM CDT | Tornado Warning | BIS | Mercer | 34 min |
| Jul 10, 8:51 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 54 min |
| Jul 10, 8:52 PM CDT | Severe Thunderstorm Warning | BIS | Mountrail, Ward | 68 min |
| Jul 10, 9:09 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Renville | 66 min |
| Jul 10, 9:15 PM CDT | Tornado Warning | BIS | Ward | 30 min |
| Jul 10, 9:25 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton | 65 min |
| Jul 10, 9:49 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry | 56 min |
| Jul 10, 9:51 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 69 min |
| Jul 10, 9:57 PM CDT | Tornado Warning | BIS | McHenry | 33 min |
| Jul 10, 10:10 PM CDT | Severe Thunderstorm Warning | BIS | Sioux | 50 min |
| Jul 10, 10:50 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce | 40 min |
| Jul 10, 10:50 PM CDT | Severe Thunderstorm Warning | BIS | Emmons | 40 min |
| Jul 10, 11:29 PM CDT | Severe Thunderstorm Warning | BIS | Pierce, Rolette | 46 min |
| Jul 11, 12:01 AM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 44 min |
| Jul 11, 4:31 PM CDT | Severe Thunderstorm Warning | BIS | Renville, Ward | 44 min |
| Jul 11, 4:54 PM CDT | Severe Thunderstorm Warning | BIS | Burke | 66 min |
| Jul 11, 6:23 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Oliver | 67 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.