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 28, 2021, 10:02 PM CDT for Brown County, Minnesota. It was in force for 43 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 28, 2021, 10:02 PM CDT (03:02 UTC)
- Expired
- Aug 28, 2021, 10:45 PM CDT
- In force
- 43 min
- Issued by
- NWS Twin Cities, MN
- Hail
- 0.75 in
- Wind
- 50
County Brown County, MN
The radar
The Minneapolis radar (KMPX), 117 km from the middle of the area, began a volume at 03:05 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 00:00Z, 3.0 hours before the alert went out and 115 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
- 1990 J/kg
- Mixed-layer CIN
- -120 J/kg
- Mixed-layer LCL
- 977 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 252 m²/s²
- 0-3 km storm-relative helicity
- 227 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 5.0
The text
As transmitted.
963
WWUS83 KMPX 290302
SPSMPX
Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1002 PM CDT Sat Aug 28 2021
MNZ074-075-082-083-290345-
Brown MN-Blue Earth MN-Watonwan MN-Nicollet MN-
1002 PM CDT Sat Aug 28 2021
...A strong thunderstorm will impact portions of Brown, northwestern
Blue Earth, northern Watonwan and central Nicollet Counties through
1045 PM CDT...
At 1002 PM CDT, Doppler radar was tracking a strong thunderstorm near
Comfrey, or 21 miles northeast of Windom, moving northeast at 45 mph.
HAZARD...Wind gusts up to 50 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Hanska, New Ulm and Courtland.
This includes U.S. Highway 14 between mile markers 86 and 115.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
south central and central Minnesota.
&&
LAT...LON 4411 9486 4411 9502 4414 9504 4446 9447
4445 9441 4412 9413 4395 9486
TIME...MOT...LOC 0302Z 247DEG 40KT 4410 9484
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH
$$
CTGThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 28, 7:13 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Le Sueur, Nicollet, Rice, Sibley | 32 min |
| Aug 28, 7:40 PM CDT | Severe Thunderstorm Warning | MPX | Brown, Redwood | 23 min |
| Aug 28, 7:41 PM CDT | Special Weather Statement | MPX | Blue Earth, Le Sueur, Rice, Scott | 34 min |
| Aug 28, 8:07 PM CDT | Special Weather Statement | MPX | Rice | 23 min |
| Aug 28, 8:17 PM CDT | Special Weather Statement | MPX | Redwood | 28 min |
| Aug 28, 8:26 PM CDT | Special Weather Statement | MPX | Dakota, Goodhue | 34 min |
| Aug 28, 8:57 PM CDT | Special Weather Statement | MPX | Goodhue | 33 min |
| Aug 28, 8:59 PM CDT | Special Weather Statement | MPX | Redwood | 31 min |
| Aug 28, 9:02 PM CDT | Flash Flood Warning | MPX | Redwood | 6 hr |
| Aug 28, 9:29 PM CDT | Special Weather Statement | MPX | Brown | 31 min |
| Aug 28, 10:15 PM CDT | Tornado Warning | MPX | Brown | 30 min |
| Aug 28, 10:52 PM CDT | Special Weather Statement | MPX | Nicollet | 53 min |
| Aug 28, 11:28 PM CDT | Special Weather Statement | MPX | Le Sueur | 47 min |
| Aug 29, 12:12 AM CDT | Special Weather Statement | MPX | Hennepin, Ramsey | 93 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.