Alert archive / North Dakota / Special Weather Statements in 2021
Special Weather Statement, NWS Grand Forks, ND
NWS Grand Forks, ND issued this special weather statement at Oct 13, 2021, 3:39 PM CDT for Sargent County, North Dakota. It was in force for 36 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
- Oct 13, 2021, 3:39 PM CDT (20:39 UTC)
- Expired
- Oct 13, 2021, 4:15 PM CDT
- In force
- 36 min
- Issued by
- NWS Grand Forks, ND
- Hail
- 0.50 in
- Wind
- 30
County Sargent County, ND
The radar
The Aberdeen radar (KABR), 97 km from the middle of the area, began a volume at 20:39 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
Aberdeen, SD (KABR), launched 12:00Z, 8.7 hours before the alert went out and 149 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
- 913 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 252 m²/s²
- 0-3 km storm-relative helicity
- 334 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
586
WWUS83 KFGF 132039
SPSFGF
Special Weather Statement
National Weather Service Grand Forks ND
339 PM CDT Wed Oct 13 2021
NDZ052-132115-
Sargent ND-
339 PM CDT Wed Oct 13 2021
...A strong thunderstorm will impact portions of central Sargent
County through 415 PM CDT...
At 338 PM CDT, Doppler radar was tracking a strong thunderstorm over
Forman, or 50 miles west of Wahpeton, moving north at 40 mph.
HAZARD...Winds in excess of 30 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
This strong thunderstorm will be near...
Gwinner around 350 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4602 9749 4601 9774 4627 9779 4627 9749
TIME...MOT...LOC 2038Z 176DEG 42KT 4610 9763
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...30 MPH
$$
BHThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 13, 3:55 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Sargent | 26 min |
| Oct 13, 4:05 PM CDT | Tornado Warning | FGF | Ransom, Sargent | 17 min |
| Oct 13, 4:16 PM CDT | Special Weather Statement | FGF | Ransom | 29 min |
| Oct 13, 5:21 PM CDT | Special Weather Statement | FGF | Cass | 24 min |
| Oct 13, 5:44 PM CDT | Special Weather Statement | FGF | Steele | 46 min |
| Oct 13, 5:04 PM CDT | Special Weather Statement | FGF | Wilkin | 26 min |
| Oct 13, 5:33 PM CDT | Special Weather Statement | FGF | Otter Tail | 27 min |
| Oct 13, 5:46 PM CDT | Special Weather Statement | FGF | Clay | 29 min |
| Oct 13, 5:51 PM CDT | Special Weather Statement | FGF | Becker, Otter Tail | 24 min |
| Oct 13, 6:19 PM CDT | Special Weather Statement | FGF | Mahnomen, Norman | 26 min |
| Oct 13, 6:22 PM CDT | Special Weather Statement | FGF | Becker | 23 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.