Alert archive / North Dakota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 47, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 3, 2021, 7:31 PM CDT for 5 counties in North Dakota. It was in force for 59 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 3, 2021, 7:31 PM CDT (00:31 UTC)
- Expired
- Jul 3, 2021, 8:30 PM CDT
- In force
- 59 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Eddy County, ND, Grand Forks County, ND, Griggs County, ND, Nelson County, ND, Steele County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 90 km from the middle of the area, began a volume at 00:30 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 3, 8:03 PM CDT | TSTM WND GST 61 | 5 Wsw Northwood, ND | 61MPH GUST. REPORTED BY A PERSONAL WEATHER STATION. |
| Jul 3, 8:03 PM CDT | TSTM WND GST 61 | 6 Sw Logan Center, ND | 61MPH WIND GUST REPORTED FROM A PWS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 0.5 hours before the alert went out and 196 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.
314
WUUS53 KFGF 040031
SVRFGF
NDC027-035-039-063-091-040130-
/O.NEW.KFGF.SV.W.0047.210704T0031Z-210704T0130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Forks ND
731 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...
Nelson County in northeastern North Dakota...
Griggs County in southeastern North Dakota...
Eddy County in northeastern North Dakota...
Northwestern Steele County in southeastern North Dakota...
* Until 830 PM CDT.
* At 731 PM CDT, severe thunderstorms were located along a line
extending from near Michigan to 8 miles northwest of Red Willow
Lake to near Barlow, moving southeast at 20 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.
* Severe thunderstorms will be near...
Michigan and Petersburg around 735 PM CDT.
Other locations in the path of these severe thunderstorms include Red
Willow Lake, Mose, Binford, Jessie and Logan Center.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4785 9865 4785 9853 4790 9853 4806 9810
4776 9751 4741 9809 4733 9850 4759 9850
4759 9919 4764 9925
TIME...MOT...LOC 0031Z 315DEG 18KT 4797 9811 4771 9854 4761 9908
HAIL...1.00IN
WIND...60MPH
$$
JR2 follow-up statements
183
WWUS53 KFGF 040059
SVSFGF
Severe Weather Statement
National Weather Service Grand Forks ND
759 PM CDT Sat Jul 3 2021
NDC027-035-039-063-091-040130-
/O.CON.KFGF.SV.W.0047.000000T0000Z-210704T0130Z/
Grand Forks ND-Nelson ND-Griggs ND-Eddy ND-Steele ND-
759 PM CDT Sat Jul 3 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR SOUTHWESTERN GRAND FORKS...SOUTHERN NELSON...GRIGGS...
SOUTHEASTERN EDDY AND NORTHWESTERN STEELE COUNTIES...
At 759 PM CDT, severe thunderstorms were located along a line
extending from 8 miles northwest of Logan Center to near Jessie to
Grace City, moving east at 35 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Jessie, Kloten, Logan Center, Aneta, Sharon and Mose.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4776 9863 4779 9847 4784 9828 4801 9801
4776 9751 4741 9809 4733 9850 4759 9850
4759 9890 4766 9894
TIME...MOT...LOC 0059Z 286DEG 30KT 4787 9795 4762 9821 4755 9878
HAIL...1.00IN
WIND...60MPH
$$
JR015
WWUS53 KFGF 040124
SVSFGF
Severe Weather Statement
National Weather Service Grand Forks ND
824 PM CDT Sat Jul 3 2021
NDC027-035-039-063-091-040134-
/O.EXP.KFGF.SV.W.0047.000000T0000Z-210704T0130Z/
Grand Forks ND-Nelson ND-Griggs ND-Eddy ND-Steele ND-
824 PM CDT Sat Jul 3 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN GRAND FORKS...
SOUTHERN NELSON...GRIGGS...SOUTHEASTERN EDDY AND NORTHWESTERN STEELE
COUNTIES WILL EXPIRE AT 830 PM CDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with these thunderstorms.
LAT...LON 4776 9863 4779 9847 4784 9828 4801 9801
4776 9751 4741 9809 4733 9850 4759 9850
4759 9890 4766 9894
TIME...MOT...LOC 0124Z 315DEG 18KT 4779 9783 4754 9809 4747 9866
$$
JRThe 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, 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 |
| Jul 3, 9:21 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Griggs, Nelson, Steele | 24 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.