Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 110, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Sep 7, 2021, 12:07 AM CDT for Becker County, Hubbard County, Wadena County, Minnesota. It was in force for 38 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
- Sep 7, 2021, 12:07 AM CDT (05:07 UTC)
- Expired
- Sep 7, 2021, 12:45 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, Hubbard County, MN, Wadena County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 195 km from the middle of the area, began a volume at 05:07 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 |
|---|---|---|---|
| Sep 7, 12:14 AM CDT | TSTM WND DMG | 4 Ssw Two Inlets, MN | LARGE BRANCHES BROKEN DOWN ONTO ROADWAYS ACROSS SOUTHERN PORTIONS OF TWO INLETS STATE FOREST. TIME ESATIMATED BASED ON RADAR. |
| Sep 7, 12:15 AM CDT | HAIL 0.75 | 4 N Park Rapids, MN | TIME ESTIMATED BY RADAR. |
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, 5.1 hours before the alert went out and 221 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
- 133 J/kg
- Mixed-layer CIN
- -170 J/kg
- Mixed-layer LCL
- 1566 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 364 m²/s²
- 0-3 km storm-relative helicity
- 441 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
278
WUUS53 KFGF 070507
SVRFGF
MNC005-057-159-070545-
/O.NEW.KFGF.SV.W.0110.210907T0507Z-210907T0545Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Forks ND
1207 AM CDT Tue Sep 7 2021
The National Weather Service in Grand Forks has issued a
* Severe Thunderstorm Warning for...
Southern Hubbard County in north central Minnesota...
Northeastern Wadena County in central Minnesota...
Northeastern Becker County in northwestern Minnesota...
* Until 1245 AM CDT.
* At 1207 AM CDT, a severe thunderstorm was located near Two Inlets,
or 32 miles northeast of Detroit Lakes, moving east at 60 mph.
HAZARD...Half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
* This severe thunderstorm will be near...
Park Rapids and Emmaville around 1215 AM CDT.
Dorset around 1220 AM CDT.
Nevis around 1225 AM CDT.
Other locations in the path of this severe thunderstorm include
Chamberlain, Badoura and Akeley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4680 9479 4670 9479 4696 9538 4711 9531
4714 9466 4680 9466
TIME...MOT...LOC 0507Z 286DEG 52KT 4700 9521
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$
JR2 follow-up statements
889
WWUS53 KFGF 070528
SVSFGF
Severe Weather Statement
National Weather Service Grand Forks ND
1228 AM CDT Tue Sep 7 2021
MNC005-159-070538-
/O.CAN.KFGF.SV.W.0110.000000T0000Z-210907T0545Z/
Wadena MN-Becker MN-
1228 AM CDT Tue Sep 7 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WADENA AND
NORTHEASTERN BECKER COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4680 9480 4693 9502 4713 9501 4714 9466
4680 9466
TIME...MOT...LOC 0528Z 277DEG 49KT 4699 9479
$$
MNC057-070545-
/O.CON.KFGF.SV.W.0110.000000T0000Z-210907T0545Z/
Hubbard MN-
1228 AM CDT Tue Sep 7 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT
FOR SOUTHEASTERN HUBBARD COUNTY...
At 1228 AM CDT, a severe thunderstorm was located over Nevis, or 33
miles south of Bemidji, moving east at 55 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Akeley and Chamberlain.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4680 9480 4693 9502 4713 9501 4714 9466
4680 9466
TIME...MOT...LOC 0528Z 277DEG 49KT 4699 9479
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
JR685
WWUS53 KFGF 070538
SVSFGF
Severe Weather Statement
National Weather Service Grand Forks ND
1238 AM CDT Tue Sep 7 2021
MNC057-070548-
/O.EXP.KFGF.SV.W.0110.000000T0000Z-210907T0545Z/
Hubbard MN-
1238 AM CDT Tue Sep 7 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HUBBARD COUNTY
WILL EXPIRE AT 1245 AM CDT...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.
LAT...LON 4680 9480 4693 9502 4713 9501 4714 9466
4680 9466
TIME...MOT...LOC 0538Z 284DEG 50KT 4697 9462
$$
JRThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 9:06 PM CDT | Special Weather Statement | FGF | Beltrami | 24 min |
| Sep 6, 9:17 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami | 18 min |
| Sep 6, 9:50 PM CDT | Severe Thunderstorm Warning | FGF | Mahnomen, Norman | 20 min |
| Sep 6, 10:32 PM CDT | Special Weather Statement | FGF | Hubbard | 43 min |
| Sep 6, 11:19 PM CDT | Special Weather Statement | FGF | Mahnomen | 41 min |
| Sep 6, 11:30 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Clearwater, Mahnomen | 45 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.