Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 99, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 28, 2021, 9:49 AM CDT for Douglas County, Pope County, Stevens County, Minnesota. It was in force for 56 min. 5 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
- Aug 28, 2021, 9:49 AM CDT (14:49 UTC)
- Expired
- Aug 28, 2021, 10:45 AM CDT
- In force
- 56 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Douglas County, MN, Pope County, MN, Stevens County, MN
The radar
The Minneapolis radar (KMPX), 194 km from the middle of the area, began a volume at 14:52 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 |
|---|---|---|---|
| Aug 28, 10:38 AM CDT | TSTM WND GST 72 | Glenwood, MN | |
| Aug 28, 10:40 AM CDT | TSTM WND DMG | 4 Ssw Forada, MN | RELAYED REPORT FROM GRAND FORKS NWS FROM THEIR FACEBOOK PAGE, NUMEROUS LARGE TREES BLOWN DOWN ALONG HIGHWAY 29 NEAR LAKE RENO. |
| Aug 28, 10:45 AM CDT | TSTM WND DMG | 3 Se Lowry, MN | REPORTS OF NUMEROUS 6 TO 9 INCH BRANCHES DOWN, DAMAGE TO MNDOT ROAD SIGNS, AND DAMAGE TO CORNFIELDS. |
| Aug 28, 10:50 AM CDT | TSTM WND GST 57 | 2 Sse Alexandria, MN | MNDOT SENSOR. |
| Aug 28, 10:54 AM CDT | HAIL 1.25 | 4 Sw Osakis, MN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 28, 7:08 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 2.8 hours before the alert went out and 192 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
- 1550 J/kg
- Mixed-layer CIN
- -130 J/kg
- Mixed-layer LCL
- 676 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 139 m²/s²
- 0-3 km storm-relative helicity
- 193 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.3
The text
As transmitted.
667
WUUS53 KMPX 281449
SVRMPX
MNC041-121-149-281545-
/O.NEW.KMPX.SV.W.0099.210828T1449Z-210828T1545Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
949 AM CDT Sat Aug 28 2021
The National Weather Service in the Twin Cities has issued a
* Severe Thunderstorm Warning for...
Southern Douglas County in west central Minnesota...
Northern Pope County in west central Minnesota...
Northeastern Stevens County in west central Minnesota...
* Until 1045 AM CDT.
* At 949 AM CDT, a severe thunderstorm was located 7 miles northeast
of Donnelly, or 12 miles north of Morris, moving east at 40 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will be near...
Kensington around 1005 AM CDT.
Other locations in the path of this severe thunderstorm include Lowry
and Alexandria.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4576 9576 4595 9576 4599 9515 4566 9514
4562 9601 4576 9603
TIME...MOT...LOC 1449Z 260DEG 35KT 4577 9591
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$2 follow-up statements
489
WWUS53 KMPX 281512
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1012 AM CDT Sat Aug 28 2021
MNC041-121-149-281545-
/O.CON.KMPX.SV.W.0099.000000T0000Z-210828T1545Z/
Douglas MN-Pope MN-Stevens MN-
1012 AM CDT Sat Aug 28 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 AM CDT
FOR SOUTHERN DOUGLAS...NORTHERN POPE AND NORTHEASTERN STEVENS
COUNTIES...
At 1012 AM CDT, a severe thunderstorm was located near Kensington, or
12 miles southwest of Alexandria, moving east at 40 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
This severe storm will be near...
Alexandria around 1030 AM CDT.
Other locations impacted by this severe thunderstorm include
Westport, Nelson, Forada, Garfield, Villard, Holmes City, Farwell
and Long Beach.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4576 9576 4595 9576 4599 9515 4566 9514
4563 9585 4576 9590
TIME...MOT...LOC 1512Z 260DEG 35KT 4581 9559
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$224
WWUS53 KMPX 281533
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1033 AM CDT Sat Aug 28 2021
MNC149-281543-
/O.CAN.KMPX.SV.W.0099.000000T0000Z-210828T1545Z/
Stevens MN-
1033 AM CDT Sat Aug 28 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN STEVENS COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until noon CDT for west
central Minnesota.
LAT...LON 4599 9524 4599 9515 4566 9514 4564 9568
4596 9567
TIME...MOT...LOC 1533Z 260DEG 35KT 4585 9530
$$
MNC041-121-281545-
/O.CON.KMPX.SV.W.0099.000000T0000Z-210828T1545Z/
Douglas MN-Pope MN-
1033 AM CDT Sat Aug 28 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 AM CDT
FOR SOUTHERN DOUGLAS AND NORTHERN POPE COUNTIES...
At 1033 AM CDT, a severe thunderstorm was located near Alexandria,
moving east at 40 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
This severe thunderstorm will remain over mainly rural areas of
southern Douglas and northern Pope Counties, including the following
locations... Alexandria Airport, Westport, Nelson, Forada, Garfield,
Villard, Holmes City, Farwell and Long Beach.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4599 9524 4599 9515 4566 9514 4564 9568
4596 9567
TIME...MOT...LOC 1533Z 260DEG 35KT 4585 9530
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 8:21 PM CDT | Flash Flood Warning | MPX | Freeborn | 4 hr |
| Aug 27, 11:48 PM CDT | Special Weather Statement | MPX | Freeborn | 87 min |
| Aug 28, 8:14 AM CDT | Special Weather Statement | MPX | Stevens | 61 min |
| Aug 28, 9:27 AM CDT | Severe Thunderstorm Warning | MPX | Lac qui Parle | 33 min |
| Aug 28, 9:54 AM CDT | Severe Thunderstorm Warning | MPX | Swift | 51 min |
| Aug 28, 10:31 AM CDT | Severe Thunderstorm Warning | MPX | Swift | 44 min |
| Aug 28, 10:41 AM CDT | Severe Thunderstorm Warning | MPX | Douglas, Pope, Stearns, Todd | 49 min |
| Aug 28, 10:53 AM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi | 52 min |
| Aug 28, 11:20 AM CDT | Severe Thunderstorm Warning | MPX | Stearns | 40 min |
| Aug 28, 11:24 AM CDT | Tornado Warning | MPX | Stearns | 36 min |
| Aug 28, 11:32 AM CDT | Severe Thunderstorm Warning | MPX | Morrison, Todd | 43 min |
| Aug 28, 11:45 AM CDT | Severe Thunderstorm Warning | MPX | Benton, Mille Lacs, Morrison, Sherburne | 45 min |
| Aug 28, 12:04 PM CDT | Tornado Warning | MPX | Benton, Mille Lacs | 41 min |
| Aug 28, 12:27 PM CDT | Severe Thunderstorm Warning | MPX | Isanti, Kanabec, Mille Lacs | 48 min |
| Aug 28, 12:43 PM CDT | Special Weather Statement | MPX | Anoka | 47 min |
| Aug 28, 1:07 PM CDT | Special Weather Statement | MPX | Chisago | 23 min |
| Aug 28, 1:29 PM CDT | Severe Thunderstorm Warning | MPX | Chisago, Isanti | 46 min |
| Aug 28, 6:06 PM CDT | Severe Thunderstorm Warning | MPX | Brown, Redwood, Watonwan | 54 min |
| Aug 28, 6:19 PM CDT | Tornado Warning | MPX | Brown, Redwood | 26 min |
| Aug 28, 6:26 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Faribault, Martin, Watonwan | 64 min |
| Aug 28, 6:43 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Brown, Nicollet, Redwood, Renville, Sibley and 1 more | 62 min |
| Aug 28, 6:51 PM CDT | Tornado Warning | MPX | Brown, Nicollet | 24 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.