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 Jul 3, 2021, 7:21 PM CDT for Eddy County, Nelson County, North Dakota. It was in force for 24 min. 1 report 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, 7:21 PM CDT (00:21 UTC)
- Expired
- Jul 3, 2021, 7:45 PM CDT
- In force
- 24 min
- Issued by
- NWS Grand Forks, ND
Counties Eddy County, ND, Nelson County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 89 km from the middle of the area, began a volume at 00:24 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 3, 7:23 PM CDT | TSTM WND GST 63 | 25 E New Rockford, ND | VIA MCHENRY NDAWN. |
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, 0.4 hours before the alert went out and 201 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.
787
WWUS83 KFGF 040021
SPSFGF
Special Weather Statement
National Weather Service Grand Forks ND
721 PM CDT Sat Jul 3 2021
NDZ014-024-026>028-040045-
Griggs ND-Nelson ND-Eddy ND-Benson ND-Grand Forks ND-
721 PM CDT Sat Jul 3 2021
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN BENSON...WEST
CENTRAL GRAND FORKS...NELSON...NORTHWESTERN GRIGGS AND SOUTHEASTERN
EDDY COUNTIES UNTIL 745 PM CDT...
At 721 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Michigan to near Brantford. Movement was
southeast at 25 mph.
Nickel size hail and winds in excess of 40 mph will be possible with
these storms.
Strong thunderstorms will be near...
Michigan and Mapes around 725 PM CDT.
Petersburg around 735 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Grand Forks.
&&
LAT...LON 4807 9815 4792 9755 4748 9850 4759 9850
4759 9918 4761 9923
TIME...MOT...LOC 0021Z 311DEG 21KT 4799 9817 4767 9887
$$
VGThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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 |
| Jul 3, 9:21 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Griggs, Nelson, Steele | 24 min |
| Jul 4, 2:42 AM CDT | Special Weather Statement | FGF | Wadena | 48 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.