Alert archive / North Dakota / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 60, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Jun 27, 1986, 8:15 PM MDT for Morton County, Sioux County, North Dakota. It was in force for 45 min. 3 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
- Jun 27, 1986, 8:15 PM MDT (02:15 UTC)
- Expired
- Jun 27, 1986, 9:00 PM MDT
- In force
- 45 min
- Issued by
- NWS Bismarck, ND
- Area
- Whole counties
Counties Morton County, ND, Sioux County, ND
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 27, 8:28 PM MDT | Hail 0.75 | Morton, ND | |
| Jun 27, 9:00 PM MDT | Hail 0.75 | Sioux, ND | |
| Jun 27, 9:03 PM MDT | Thunderstorm Wind 64 | Morton, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 2.3 hours before the alert went out and 53 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
- 2526 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 173 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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, Jun 27, 4:07 PM MDT, 4 hours 8 minutes before
SPECIAL WEATHER STATEMENT..CORRECTION NATIONAL WEATHER SERVICE BISMARCK ND 510 PM CDT FRI JUN 27 1986 ...DEVELOPING THUNDERSTORMS IN WESTERN NORTH DAKOTA... AT 500 PM CDT 4PM MDT STRONG THUNDERSTORMS WITH HEAVY RAIN AND SMALL HAIL FORMED IN EASTERN MCKENZIE AND WESTERN DUNN COUNTIES OF NORTH DAKOTA. THE STRONGER THUNDERSTORMS WERE SOUTHEAST OF KEENE NORTH DAKOTA AND NORTHWEST OF KILLDEER NORTH DAKOTA. MOVEMENT OF THUNDERSTORMS WAS EAST AT 45 MPH. PEOPLE IN OR NEAR THE THUNDERSTORM AREA SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. SEAL
Local storm report, Jun 27, 6:18 PM MDT, 1 hour 57 minutes before
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</html>Special weather statement, Jun 27, 6:49 PM MDT, 1 hour 26 minutes before
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</html>Special weather statement, Jun 27, 7:32 PM MDT, 43 minutes before
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</html>Local storm report, Jun 27, 7:49 PM MDT, 26 minutes before
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</html>Local storm report, Jun 27, 8:14 PM MDT, 1 minute before
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</html>The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 6:03 PM MDT | Tornado Warning | BIS | Dunn, McKenzie | 57 min |
| Jun 27, 6:26 PM MDT | Severe Thunderstorm Warning | BIS | Dunn | 19 min |
| Jun 27, 6:34 PM MDT | Severe Thunderstorm Warning | BIS | Morton | 60 min |
| Jun 27, 7:46 PM MDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 29 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 1986Every severe thunderstorm warning in 1986
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.