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 27, 2020, 10:10 PM CDT for Mercer County, North Dakota. It was in force for 35 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 27, 2020, 10:10 PM CDT (03:10 UTC)
- Expired
- Aug 27, 2020, 10:45 PM CDT
- In force
- 35 min
- Issued by
- NWS Bismarck, ND
County Mercer County, ND
The radar
The Bismarck radar (KBIS), 91 km from the middle of the area, began a volume at 03:12 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
Bismarck Municip, ND (KBIS), launched 00:00Z, 3.2 hours before the alert went out and 95 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
- 13 J/kg
- Mixed-layer CIN
- -290 J/kg
- Mixed-layer LCL
- 1363 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 193 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
319
WWUS83 KBIS 280310
SPSBIS
Special Weather Statement
National Weather Service Bismarck ND
1010 PM CDT Thu Aug 27 2020
NDZ018>020-033-034-280345-
Oliver ND-Stark ND-Mercer ND-Morton ND-Dunn ND-
1010 PM CDT Thu Aug 27 2020
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN DUNN...NORTHWESTERN
MORTON...NORTHEASTERN STARK...SOUTHWESTERN OLIVER AND SOUTHWESTERN
MERCER COUNTIES UNTIL 1045 PM CDT/945 PM MDT/...
At 1010 PM CDT/910 PM MDT/, strong thunderstorms were clustered along
a line extending from 10 miles south of Beulah to 6 miles west of
Hebron to 5 miles east of Dickinson. Movement was east at 30 mph.
Nickel size hail and wind gusts to 50 mph will be possible with these
storms.
Locations impacted include...
Glen Ullin, Hebron, Richardton, Gladstone, Taylor and Marshall.
These storms 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.
A Severe Thunderstorm Watch remains in effect until 200 AM CDT/100 AM
MDT/ for south central and southwestern North Dakota.
LAT...LON 4703 10138 4682 10172 4674 10246 4697 10279
4727 10200 4720 10159
TIME...MOT...LOC 0310Z 287DEG 27KT 4711 10179 4687 10217 4688 10268
$$
EDWARDSThe office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 7:25 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Hettinger | 50 min |
| Aug 27, 7:42 PM CDT | Special Weather Statement | BIS | Renville | 48 min |
| Aug 27, 7:54 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Hettinger, Morton | 40 min |
| Aug 27, 8:02 PM CDT | Special Weather Statement | BIS | Williams | 43 min |
| Aug 27, 8:38 PM CDT | Special Weather Statement | BIS | Morton | 22 min |
| Aug 27, 8:53 PM CDT | Special Weather Statement | BIS | McKenzie | 52 min |
| Aug 27, 8:55 PM CDT | Special Weather Statement | BIS | Williams | 20 min |
| Aug 27, 9:21 PM CDT | Special Weather Statement | BIS | Mountrail | 24 min |
| Aug 27, 9:28 PM CDT | Special Weather Statement | BIS | Golden Valley | 17 min |
| Aug 27, 9:31 PM CDT | Special Weather Statement | BIS | Stark | 29 min |
| Aug 27, 9:48 PM CDT | Special Weather Statement | BIS | Billings, Golden Valley, Mountrail | 27 min |
| Aug 27, 9:56 PM CDT | Special Weather Statement | BIS | Slope | 34 min |
| Aug 27, 10:17 PM CDT | Special Weather Statement | BIS | Ward | 28 min |
| Aug 27, 10:47 PM CDT | Special Weather Statement | BIS | Stark | 43 min |
| Aug 27, 11:26 PM CDT | Special Weather Statement | BIS | Morton | 34 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.