Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 136, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Oct 9, 2021, 8:15 PM CDT for Douglas County, Pope County, Minnesota. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Oct 9, 2021, 8:15 PM CDT (01:15 UTC)
- Expired
- Oct 9, 2021, 9:00 PM CDT
- In force
- 45 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Douglas County, MN, Pope County, MN
The radar
The Minneapolis radar (KMPX), 177 km from the middle of the area, began a volume at 01:18 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Oct 9, 6:34 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 1.3 hours before the alert went out and 174 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
- 458 J/kg
- Mixed-layer CIN
- -239 J/kg
- Mixed-layer LCL
- 1239 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 247 m²/s²
- 0-3 km storm-relative helicity
- 346 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
973
WUUS53 KMPX 100115
SVRMPX
MNC041-121-100200-
/O.NEW.KMPX.SV.W.0136.211010T0115Z-211010T0200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
815 PM CDT Sat Oct 9 2021
The National Weather Service in the Twin Cities has issued a
* Severe Thunderstorm Warning for...
Douglas County in west central Minnesota...
Pope County in west central Minnesota...
* Until 900 PM CDT.
* At 814 PM CDT, a severe thunderstorm was located near Evansville,
or 16 miles west of Alexandria, moving northeast at 55 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* This severe thunderstorm will be near...
Brandon around 820 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in the Twin Cities.
&&
LAT...LON 4611 9515 4576 9514 4554 9524 4541 9559
4541 9574 4610 9577
TIME...MOT...LOC 0114Z 224DEG 48KT 4592 9571
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CTG1 follow-up statement
271
WWUS53 KMPX 100155
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
855 PM CDT Sat Oct 9 2021
MNC041-121-100205-
/O.EXP.KMPX.SV.W.0136.000000T0000Z-211010T0200Z/
Douglas MN-Pope MN-
855 PM CDT Sat Oct 9 2021
...THE SEVERE THUNDERSTORM WARNING FOR DOUGLAS AND POPE COUNTIES WILL
EXPIRE AT 900 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 200 AM CDT for
central and west central Minnesota.
LAT...LON 4611 9515 4576 9514 4554 9524 4541 9559
4541 9574 4610 9577
TIME...MOT...LOC 0155Z 224DEG 48KT 4630 9518
$$
CTGThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 9, 7:13 PM CDT | Special Weather Statement | MPX | Lac qui Parle, Yellow Medicine | 62 min |
| Oct 9, 7:19 PM CDT | Severe Thunderstorm Warning | MPX | Stevens, Swift | 41 min |
| Oct 9, 7:35 PM CDT | Severe Thunderstorm Warning | MPX | Lac qui Parle | 25 min |
| Oct 9, 7:56 PM CDT | Severe Thunderstorm Warning | MPX | Stevens, Swift | 49 min |
| Oct 9, 7:58 PM CDT | Severe Thunderstorm Warning | MPX | Lac qui Parle | 47 min |
| Oct 9, 10:59 PM CDT | Special Weather Statement | MPX | Chippewa, Lac qui Parle, Pope, Swift, Todd, Yellow Medicine | 3 hr |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.