Alert archive / North Dakota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 21, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Jun 14, 1997, 8:24 PM CDT for Ward County, North Dakota. It was in force for 66 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
- Jun 14, 1997, 8:24 PM CDT (01:24 UTC)
- Expired
- Jun 14, 1997, 9:30 PM CDT
- In force
- 66 min
- Issued by
- NWS Bismarck, ND
- Area
- Whole counties
County Ward County, ND
The radar
The Minot AFB radar (KMBX), 54 km from the middle of the area, began a volume at 01:45 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 |
|---|---|---|---|
| Jun 14, 8:40 PM CDT | Hail 0.75 | Minot Afb, 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 nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 1.4 hours before the alert went out and 173 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
- 2648 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 114 m²/s²
- 0-3 km storm-relative helicity
- 262 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 150127 RRA SVRBIS NDC101-150230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BISMARCK ND 824 PM CDT SAT JUN 14 1997 THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 930 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH CENTRAL NORTH DAKOTA ...WARD COUNTY AT 825 PM CDT MINOT DOPPLER WEATHER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS PRODUCING WINDS IN EXCESS OF 55 MPH FROM 30 MILES WEST OF MINOT...TO 25 MILES NORTHWEST OF MINOT. THE STORMS WERE MOVING EAST AT 25 MPH. TOWNS NEAR THE PATH OF THE STORMS INCLUDE BURLINGTON...DE LACS AND MINOT SEVERE THUNDERSTORMS CAN AND OCCASIONALL(Y DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 7:30 PM CDT | Severe Thunderstorm Warning | BIS | Stark | 45 min |
| Jun 14, 7:30 PM CDT | Severe Thunderstorm Warning | BIS | McLean | 60 min |
| Jun 14, 8:21 PM CDT | Severe Thunderstorm Warning | BIS | Stark | 39 min |
| Jun 14, 8:40 PM CDT | Severe Thunderstorm Warning | BIS | Grant | 50 min |
| Jun 14, 9:04 PM CDT | Severe Thunderstorm Warning | BIS | Adams | 41 min |
| Jun 14, 9:40 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 65 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.