Alert archive / North Dakota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 48, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 3, 2021, 9:21 PM CDT for 4 counties in North Dakota. It was in force for 24 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
- Jul 3, 2021, 9:21 PM CDT (02:21 UTC)
- Expired
- Jul 3, 2021, 9:45 PM CDT
- In force
- 24 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Grand Forks County, ND, Griggs County, ND, Nelson County, ND, Steele County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 58 km from the middle of the area, began a volume at 02:24 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, 2.4 hours before the alert went out and 229 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
- 478 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 3383 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
330
WUUS53 KFGF 040221
SVRFGF
NDC035-039-063-091-040245-
/O.NEW.KFGF.SV.W.0048.210704T0221Z-210704T0245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Forks ND
921 PM CDT Sat Jul 3 2021
The National Weather Service in Grand Forks has issued a
* Severe Thunderstorm Warning for...
Southwestern Grand Forks County in northeastern North Dakota...
Southeastern Nelson County in northeastern North Dakota...
Northeastern Griggs County in southeastern North Dakota...
Northwestern Steele County in southeastern North Dakota...
* Until 945 PM CDT.
* At 920 PM CDT, a severe thunderstorm was located near McVille, or
41 miles southeast of Devils Lake, moving southeast at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will be near...
Kloten around 930 PM CDT.
Aneta around 940 PM CDT.
Other locations in the path of this severe thunderstorm include Logan
Center.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4774 9827 4790 9815 4778 9763 4754 9781
TIME...MOT...LOC 0220Z 296DEG 24KT 4779 9812
HAIL...1.00IN
WIND...60MPH
$$1 follow-up statement
632
WWUS53 KFGF 040243
SVSFGF
Severe Weather Statement
National Weather Service Grand Forks ND
943 PM CDT Sat Jul 3 2021
NDC035-039-063-091-040252-
/O.EXP.KFGF.SV.W.0048.000000T0000Z-210704T0245Z/
Grand Forks ND-Nelson ND-Griggs ND-Steele ND-
943 PM CDT Sat Jul 3 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN GRAND FORKS...
SOUTHEASTERN NELSON...NORTHEASTERN GRIGGS AND NORTHWESTERN STEELE
COUNTIES WILL EXPIRE AT 945 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
LAT...LON 4774 9827 4790 9815 4778 9763 4754 9781
TIME...MOT...LOC 0242Z 296DEG 24KT 4773 9793
$$The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 7:21 PM CDT | Special Weather Statement | FGF | Eddy, Nelson | 24 min |
| Jul 3, 7:31 PM CDT | Severe Thunderstorm Warning | FGF | Eddy, Grand Forks, Griggs, Nelson, Steele | 59 min |
| Jul 3, 8:26 PM CDT | Special Weather Statement | FGF | Griggs, Steele, Traill | 64 min |
| Jul 3, 9:14 PM CDT | Special Weather Statement | FGF | Nelson | 61 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2021Every severe thunderstorm warning 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.