Alert archive / North Dakota / Special Weather Statements in 2020
Special Weather Statement, NWS Bismarck, ND
NWS Bismarck, ND issued this special weather statement at Aug 8, 2020, 7:57 PM MDT for Bowman County, North Dakota. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 8, 2020, 7:57 PM MDT (01:57 UTC)
- Expired
- Aug 8, 2020, 8:45 PM MDT
- In force
- 48 min
- Issued by
- NWS Bismarck, ND
County Bowman County, ND
The radar
The Rapid City radar (KUDX), 215 km from the middle of the area, began a volume at 01:57 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
Rapid City, SD (KUNR), launched 00:00Z, 2.0 hours before the alert went out and 220 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
- 1865 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 1835 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.6
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Bismarck, ND wrote its last area forecast discussion before this special weather statement went out at Aug 8, 5:20 PM MDT, 2 hours 37 minutes earlier.
Area forecast discussion, Aug 8, 5:20 PM MDT, 2 hours 37 minutes before
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</html>Hazardous weather outlook, Aug 8, 5:21 PM MDT, 2 hours 36 minutes before
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</html>In the hours before
Local storm report, Aug 8, 3:35 PM MDT, 4 hours 22 minutes before
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</html>Local storm report, Aug 8, 4:00 PM MDT, 3 hours 57 minutes before
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</html>Special weather statement, Aug 8, 7:57 PM MDT, 0 minutes before
Special Weather Statement
National Weather Service Bismarck ND
757 PM MDT Sat Aug 8 2020
NDZ043-090245-
Bowman ND-
757 PM MDT Sat Aug 8 2020
...SIGNIFICANT WEATHER ADVISORY FOR EASTERN BOWMAN COUNTY UNTIL 845
PM MDT...
At 756 PM MDT, a strong thunderstorm was located 7 miles northeast of
Table Mountain, or 16 miles southwest of Bowman, moving northeast at
25 mph.
Half inch hail and wind gusts to 40 mph will be possible with this
storm.
Locations impacted include...
Bowman.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
LAT...LON 4595 10343 4595 10367 4597 10371 4625 10347
4605 10318 4594 10339
TIME...MOT...LOC 0156Z 225DEG 21KT 4598 10357
HARGROVEThe office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 8:04 PM MDT | Severe Thunderstorm Warning | BIS | Bowman | 41 min |
| Aug 8, 8:41 PM MDT | Special Weather Statement | BIS | Slope | 34 min |
| Aug 8, 11:33 PM MDT | Special Weather Statement | BIS | McKenzie | 27 min |
| Aug 8, 11:35 PM MDT | Special Weather Statement | BIS | McKenzie | 25 min |
| Aug 9, 12:12 AM MDT | Special Weather Statement | BIS | McKenzie | 33 min |
| Aug 9, 12:57 AM MDT | Special Weather Statement | BIS | Mountrail | 33 min |
| Aug 9, 1:18 AM MDT | Special Weather Statement | BIS | Mountrail | 42 min |
| Aug 9, 1:33 AM MDT | Severe Thunderstorm Warning | BIS | Dunn, McLean, Mountrail | 34 min |
| Aug 9, 2:00 AM MDT | Special Weather Statement | BIS | Mountrail | 30 min |
| Aug 9, 2:19 AM MDT | Special Weather Statement | BIS | Burke | 41 min |
| Aug 9, 4:13 AM MDT | Special Weather Statement | BIS | McHenry, Pierce | 47 min |
| Aug 9, 4:47 AM MDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce | 43 min |
| Aug 9, 5:18 AM MDT | Special Weather Statement | BIS | Rolette | 42 min |
| Aug 9, 7:45 AM MDT | Special Weather Statement | BIS | Rolette | 30 min |
| Aug 9, 1:08 PM MDT | Tornado Warning | BIS | LaMoure | 37 min |
| Aug 9, 2:23 PM MDT | Special Weather Statement | BIS | LaMoure | 37 min |
| Aug 9, 2:30 PM MDT | Severe Thunderstorm Warning | BIS | LaMoure | 30 min |
| Aug 9, 2:50 PM MDT | Severe Thunderstorm Warning | BIS | Dickey | 20 min |
Nearby
Special Weather Statements in North Dakota, 2020Every special weather statement in 2020
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.