Alert archive / North Dakota / Special Weather Statements in 2021
Special Weather Statement, NWS Bismarck, ND
NWS Bismarck, ND issued this special weather statement at Aug 7, 2021, 7:40 PM CDT for LaMoure 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 7, 2021, 7:40 PM CDT (00:40 UTC)
- Expired
- Aug 7, 2021, 8:15 PM CDT
- In force
- 35 min
- Issued by
- NWS Bismarck, ND
- Hail
- 0.88 in
- Wind
- 40
County LaMoure County, ND
The radar
The Aberdeen radar (KABR), 111 km from the middle of the area, began a volume at 00:40 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, 0.7 hours before the alert went out and 152 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
- 105 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 1899 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 3 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
154
WWUS83 KBIS 080040
SPSBIS
Special Weather Statement
National Weather Service Bismarck ND
740 PM CDT Sat Aug 7 2021
NDZ037-047-048-051-080115-
La Moure ND-Dickey ND-Logan ND-Stutsman ND-
740 PM CDT Sat Aug 7 2021
...Strong thunderstorms will impact portions of western LaMoure,
north central Dickey, northeastern Logan and south central Stutsman
Counties through 815 PM CDT...
At 740 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 4 miles west of Jud to 13 miles southwest of
Adrian to Edgeley to 16 miles east of Kulm to 9 miles west of
Fullerton. Movement was north at 20 mph.
HAZARD...Winds in excess of 40 mph and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Edgeley, Jud, Monango, Berlin, Nortonville and Alfred.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
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.
&&
LAT...LON 4671 9910 4670 9881 4659 9867 4642 9852
4626 9842 4605 9861 4609 9872 4628 9875
4643 9910
TIME...MOT...LOC 0040Z 182DEG 16KT 4653 9898 4649 9879 4635 9868 4626
9862 4615 9861
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH
$$
GALEThe office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 7:08 PM CDT | Special Weather Statement | BIS | LaMoure | 37 min |
| Aug 7, 8:11 PM CDT | Special Weather Statement | BIS | LaMoure | 34 min |
| Aug 7, 8:18 PM CDT | Special Weather Statement | BIS | Dickey | 27 min |
Nearby
Special Weather Statements in North Dakota, 2021Every special weather statement in 2021
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.