Alert archive / Minnesota / Special Weather Statements in 2021
Special Weather Statement, NWS Twin Cities, MN
NWS Twin Cities, MN issued this special weather statement at Aug 20, 2021, 5:43 PM CDT for Chippewa County, Pope County, Swift County, Minnesota. It was in force for 32 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
- Aug 20, 2021, 5:43 PM CDT (22:43 UTC)
- Expired
- Aug 20, 2021, 6:15 PM CDT
- In force
- 32 min
- Issued by
- NWS Twin Cities, MN
- Hail
- 0.00 in
- Wind
- 40
Counties Chippewa County, MN, Pope County, MN, Swift County, MN
The radar
The Minneapolis radar (KMPX), 161 km from the middle of the area, began a volume at 22:45 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 nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 10.7 hours before the alert went out and 158 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
- 48 J/kg
- Mixed-layer CIN
- -139 J/kg
- Mixed-layer LCL
- 999 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
007
WWUS83 KMPX 202243
SPSMPX
Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
543 PM CDT Fri Aug 20 2021
MNZ048-049-055>057-202315-
Chippewa MN-Stearns MN-Kandiyohi MN-Pope MN-Swift MN-
543 PM CDT Fri Aug 20 2021
...A strong thunderstorm will impact portions of Pope, northeastern
Chippewa, northwestern Stearns, eastern Swift and northwestern
Kandiyohi Counties through 615 PM CDT...
At 543 PM CDT, Doppler radar was tracking a strong thunderstorm 6
miles west of Murdock, or 20 miles northeast of Montevideo, moving
north at 40 mph.
HAZARD...Winds in excess of 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
This strong thunderstorm will be near...
Benson around 550 PM CDT.
Lake Hassel around 600 PM CDT.
This includes the following highways...
Interstate 94 in Minnesota between mile markers 123 and 128.
U.S. Highway 12 between mile markers 36 and 66.
U.S. Highway 71 between mile markers 164 and 170.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
central and west central Minnesota.
&&
LAT...LON 4576 9556 4576 9491 4501 9524 4501 9586
TIME...MOT...LOC 2243Z 200DEG 35KT 4520 9552
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
$$
JLTThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 4:47 PM CDT | Special Weather Statement | MPX | Douglas | 28 min |
| Aug 20, 4:51 PM CDT | Special Weather Statement | MPX | Todd | 39 min |
| Aug 20, 4:54 PM CDT | Severe Thunderstorm Warning | MPX | Douglas | 19 min |
| Aug 20, 5:04 PM CDT | Special Weather Statement | MPX | Swift | 41 min |
| Aug 20, 5:48 PM CDT | Special Weather Statement | MPX | Renville | 42 min |
| Aug 20, 5:50 PM CDT | Special Weather Statement | MPX | Martin, Watonwan | 40 min |
| Aug 20, 6:16 PM CDT | Special Weather Statement | MPX | Stearns | 44 min |
| Aug 20, 6:21 PM CDT | Severe Thunderstorm Warning | MPX | Pope, Stearns | 39 min |
| Aug 20, 6:53 PM CDT | Tornado Warning | MPX | Stearns | 37 min |
Nearby
Special Weather Statements in Minnesota, 2021Every special weather statement 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.