Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 75, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 28, 2021, 11:20 AM CDT for Lake of the Woods County, Minnesota. It was in force for 55 min. 3 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 28, 2021, 11:20 AM CDT (16:20 UTC)
- Expired
- Jul 28, 2021, 12:15 PM CDT
- In force
- 55 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Hail
- 2.0 in
- Wind
- 60.0 mph
County Lake of the Woods County, MN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 28, 11:40 AM CDT | HAIL 1 | 1 Sw Penasse, MN | HAIL BRUSHED THE NORTHWEST ANGLE OF MINNESOTA ACROSS TO OAK ISLANDBETWEN 1130 AND 1150 AM. MOST HAIL RANGED FROM PEA TO DIME SIZED. SOME UP TO QUARTER SIZED FELL NEAR THE FORT SAINT CHARLES HISTORIC SITE ON MAGNUSONS ISLAND. |
| Jul 28, 11:40 AM CDT | HAIL 1 | 1 Wsw Penasse, MN | HAIL BRUSHED THE NORTHWEST ANGLE OF MINNESOTA ACROSS TO OAK ISLAND BETWEEN 1130 AND 1150 AM. MOST HAIL RANGED FROM PEA TO DIME SIZED. SOME UP TO QUARTER SIZED FELL NEAR THE FORT SAINT CHARLES HISTORIC SITE ON MAGNUSONS ISLAND. |
| Jul 28, 11:40 AM CDT | HAIL 1 | 1 Wsw Penasse, MN | HAIL BRUSHED THE NORTHWEST ANGLE OF MINNESOTA ACROSS TO OAK ISLANDBETWEN 1130 AND 1150 AM. MOST HAIL RANGED FROM PEA TO DIME SIZED. SOME UP TO QUARTER SIZED FELL NEAR THE FORT SAINT CHARLES HISTORIC SITE ON MAGNUSONS ISLAND. |
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 12:00Z, 4.3 hours before the alert went out and 140 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
- 285 J/kg
- Mixed-layer CIN
- -422 J/kg
- Mixed-layer LCL
- 1229 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 109 m²/s²
- 0-3 km storm-relative helicity
- 190 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted.
205
WUUS53 KFGF 281620
SVRFGF
MNC077-281715-
/O.NEW.KFGF.SV.W.0075.210728T1620Z-210728T1715Z/
BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Forks ND
1120 AM CDT Wed Jul 28 2021
The National Weather Service in Grand Forks has issued a
* Severe Thunderstorm Warning for...
North central Lake of the Woods County in north central
Minnesota...
* Until 1215 PM CDT.
* At 1120 AM CDT, a severe thunderstorm was located near Angle Inlet,
or 47 miles northeast of Roseau, moving southeast at 35 mph.
HAZARD...Two inch hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.
* This severe thunderstorm will be near...
Angle Inlet around 1130 AM CDT.
Penasse around 1135 AM CDT.
Flag Island around 1140 AM CDT.
Other locations in the path of this severe thunderstorm include Oak
Island.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows!
If on or near Lake of the Woods, get away from the water and move
indoors or inside a vehicle. Remember, lightning can strike out to
15 miles from the parent thunderstorm. If you can hear thunder, you
are close enough to be struck by lightning. Move to safe shelter
now! Do not be caught on the water in a thunderstorm.
&&
LAT...LON 4935 9507 4937 9495 4933 9486 4932 9481
4929 9482 4918 9479 4912 9477 4909 9475
4901 9473 4931 9516 4939 9515
TIME...MOT...LOC 1620Z 293DEG 31KT 4941 9516
HAIL...2.00IN
WIND...60MPH
$$
CJ2 follow-up statements
609
WWUS53 KFGF 281646
SVSFGF
Severe Weather Statement
National Weather Service Grand Forks ND
1146 AM CDT Wed Jul 28 2021
MNC077-281715-
/O.CON.KFGF.SV.W.0075.000000T0000Z-210728T1715Z/
Lake of the Woods MN-
1146 AM CDT Wed Jul 28 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 PM CDT
FOR NORTH CENTRAL LAKE OF THE WOODS COUNTY...
At 1146 AM CDT, a severe thunderstorm was located over Oak Island, or
52 miles northeast of Roseau, moving southeast at 35 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
This severe thunderstorm will remain over mainly rural areas of north
central Lake of the Woods County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.
If on or near Lake of the Woods, get away from the water and move
indoors or inside a vehicle. remember, lightning can strike out to
15 miles from the parent thunderstorm. If you can hear thunder, you
are close enough to be struck by lightning. Move to safe shelter
now! Do not be caught on the water in a thunderstorm.
&&
LAT...LON 4935 9507 4937 9495 4933 9486 4932 9481
4929 9482 4918 9479 4912 9477 4909 9475
4901 9473 4931 9516 4939 9515
TIME...MOT...LOC 1646Z 293DEG 31KT 4932 9484
HAIL...1.50IN
WIND...60MPH
$$
CJ460
WWUS53 KFGF 281706
SVSFGF
Severe Weather Statement
National Weather Service Grand Forks ND
1206 PM CDT Wed Jul 28 2021
MNC077-281715-
/O.EXP.KFGF.SV.W.0075.000000T0000Z-210728T1715Z/
Lake of the Woods MN-
1206 PM CDT Wed Jul 28 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL LAKE OF THE
WOODS COUNTY WILL EXPIRE AT 1215 PM CDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire. However small hail
is still possible from nearby thunderstorms.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Grand Forks.
LAT...LON 4935 9507 4937 9495 4933 9486 4932 9481
4929 9482 4918 9479 4912 9477 4909 9475
4901 9473 4931 9516 4939 9515
TIME...MOT...LOC 1705Z 293DEG 31KT 4926 9463
$$
CJThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 3:43 AM CDT | Severe Thunderstorm Warning | FGF | Wilkin | 39 min |
| Jul 28, 4:12 AM CDT | Special Weather Statement | FGF | Grant | 63 min |
| Jul 28, 4:20 AM CDT | Special Weather Statement | FGF | Clay | 55 min |
| Jul 28, 4:31 AM CDT | Special Weather Statement | FGF | Wadena | 29 min |
| Jul 28, 4:40 AM CDT | Special Weather Statement | FGF | Mahnomen | 65 min |
| Jul 28, 5:15 AM CDT | Special Weather Statement | FGF | Hubbard | 60 min |
| Jul 28, 6:00 AM CDT | Severe Thunderstorm Warning | FGF | Becker, Clearwater, Hubbard | 60 min |
| Jul 28, 7:04 AM CDT | Special Weather Statement | FGF | Beltrami | 56 min |
| Jul 28, 8:32 AM CDT | Special Weather Statement | FGF | Hubbard | 43 min |
| Jul 28, 9:44 AM CDT | Special Weather Statement | FGF | Beltrami | 61 min |
| Jul 28, 9:56 AM CDT | Severe Thunderstorm Warning | FGF | Beltrami | 19 min |
| Jul 28, 6:03 PM CDT | Special Weather Statement | FGF | Beltrami | 27 min |
| Jul 28, 6:40 PM CDT | Special Weather Statement | FGF | Beltrami | 35 min |
| Jul 28, 6:47 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami | 28 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.