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, 5:48 PM CDT for Renville County, Minnesota. It was in force for 42 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, 5:48 PM CDT (22:48 UTC)
- Expired
- Aug 20, 2021, 6:30 PM CDT
- In force
- 42 min
- Issued by
- NWS Twin Cities, MN
- Hail
- 0.00 in
- Wind
- 40
County Renville County, MN
The radar
The Minneapolis radar (KMPX), 102 km from the middle of the area, began a volume at 22:51 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, 10.8 hours before the alert went out and 100 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.
543
WWUS83 KMPX 202248
SPSMPX
Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
548 PM CDT Fri Aug 20 2021
MNZ065>067-073-074-202330-
Brown MN-McLeod MN-Sibley MN-Renville MN-Redwood MN-
548 PM CDT Fri Aug 20 2021
...A strong thunderstorm will impact portions of east central
Redwood, northwestern Sibley, west central McLeod, north central
Brown and eastern Renville Counties through 630 PM CDT...
At 548 PM CDT, Doppler radar was tracking a strong thunderstorm near
Franklin, or 13 miles east of Redwood Falls, 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...
Fairfax around 600 PM CDT.
Other locations in the path of this storm include Hector and Buffalo
Lake.
This includes the following highways...
U.S. Highway 14 near mile marker 88.
U.S. Highway 212 between mile markers 81 and 101.
U.S. Highway 71 between mile markers 82 and 87.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
south central, central and southwestern Minnesota.
&&
LAT...LON 4447 9509 4489 9484 4489 9441 4445 9465
4446 9478 4443 9470 4441 9468 4429 9474
TIME...MOT...LOC 2248Z 200DEG 35KT 4447 9486
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, 5:43 PM CDT | Special Weather Statement | MPX | Chippewa, Pope, Swift | 32 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.