Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 71, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 26, 2021, 11:52 PM CDT for 4 counties in Minnesota. It was in force for 38 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 26, 2021, 11:52 PM CDT (04:52 UTC)
- Expired
- Jul 27, 2021, 12:30 AM CDT
- In force
- 38 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 50.0 mph
Counties Becker County, MN, Clearwater County, MN, Hubbard County, MN, Mahnomen County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 142 km from the middle of the area, began a volume at 04:51 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 27, 12:00 AM CDT | HAIL 1 | 5 W Pine Bend, MN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
International Fa, MN (KINL), launched 00:00Z, 4.9 hours before the alert went out and 218 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
- 2004 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 306 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
358
WUUS53 KFGF 270452
SVRFGF
MNC005-029-057-087-270530-
/O.NEW.KFGF.SV.W.0071.210727T0452Z-210727T0530Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Forks ND
1152 PM CDT Mon Jul 26 2021
The National Weather Service in Grand Forks has issued a
* Severe Thunderstorm Warning for...
West central Hubbard County in north central Minnesota...
Northeastern Mahnomen County in northwestern Minnesota...
Northeastern Becker County in northwestern Minnesota...
Southern Clearwater County in northwestern Minnesota...
* Until 1230 AM CDT.
* At 1152 PM CDT, a severe thunderstorm was located over northern
White Earth Nation, or 36 miles west of Bemidji, moving southeast
at 35 mph.
HAZARD...Half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
* This severe thunderstorm will be near...
Pine Bend around 1155 PM CDT.
Roy Lake, Mahkonce and Rice Lake around 1205 AM CDT.
Lower Rice Lake and Naytahwaush around 1210 AM CDT.
Other locations in the path of this severe thunderstorm include
Zerkel and Long Lost Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4698 9536 4741 9583 4750 9568 4750 9558
4716 9506
TIME...MOT...LOC 0452Z 318DEG 29KT 4742 9566
HAIL...1.25IN
WIND...<50MPH
$$
VG2 follow-up statements
476 WWUS53 KFGF 270513 SVSFGF Severe Weather Statement National Weather Service Grand Forks ND 1213 AM CDT Tue Jul 27 2021 MNC005-029-057-087-270530- /O.CON.KFGF.SV.W.0071.000000T0000Z-210727T0530Z/ Hubbard MN-Mahnomen MN-Becker MN-Clearwater MN- 1213 AM CDT Tue Jul 27 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT FOR WEST CENTRAL HUBBARD...EAST CENTRAL MAHNOMEN...NORTHEASTERN BECKER AND SOUTHERN CLEARWATER COUNTIES... At 1212 AM CDT, a severe thunderstorm was located over northeastern White Earth Nation, or 33 miles west of Bemidji, moving southeast at 25 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Lower Rice Lake, Zerkel, Long Lost Lake and Bad Medicine Lake. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4698 9536 4736 9577 4748 9555 4716 9506 TIME...MOT...LOC 0512Z 318DEG 23KT 4731 9555 HAIL...1.00IN WIND...<50MPH $$ VG
675
WWUS53 KFGF 270529
SVSFGF
Severe Weather Statement
National Weather Service Grand Forks ND
1229 AM CDT Tue Jul 27 2021
MNC005-029-057-087-270539-
/O.EXP.KFGF.SV.W.0071.000000T0000Z-210727T0530Z/
Hubbard MN-Mahnomen MN-Becker MN-Clearwater MN-
1229 AM CDT Tue Jul 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL HUBBARD...EAST
CENTRAL MAHNOMEN...NORTHEASTERN BECKER AND SOUTHERN CLEARWATER
COUNTIES WILL EXPIRE AT 1230 AM 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 4698 9536 4736 9577 4748 9555 4716 9506
TIME...MOT...LOC 0529Z 318DEG 29KT 4722 9543
$$
VGThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 8:41 PM CDT | Special Weather Statement | FGF | Beltrami | 49 min |
| Jul 26, 9:07 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami | 23 min |
| Jul 26, 11:16 PM CDT | Special Weather Statement | FGF | Mahnomen, Norman | 59 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 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.