Alert archive / Minnesota / Special Weather Statements in 2021
Special Weather Statement, NWS La Crosse, WI
NWS La Crosse, WI issued this special weather statement at Aug 7, 2021, 7:21 AM CDT for Winona County, Minnesota. It was in force for 24 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 7, 2021, 7:21 AM CDT (12:21 UTC)
- Expired
- Aug 7, 2021, 7:45 AM CDT
- In force
- 24 min
- Issued by
- NWS La Crosse, WI
- Hail
- 0.75 in
- Wind
- 50
County Winona County, MN
The radar
The La Crosse radar (KARX), 44 km from the middle of the area, began a volume at 12:23 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
Davenport, (KDVN), launched 12:00Z, 0.4 hours before the alert went out and 286 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
- 1645 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 1006 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
192
WWUS83 KARX 071221
SPSARX
Special Weather Statement
National Weather Service La Crosse WI
721 AM CDT Sat Aug 7 2021
MNZ088-WIZ032-033-071245-
Winona MN-Buffalo WI-Trempealeau WI-
721 AM CDT Sat Aug 7 2021
...A strong thunderstorm will impact portions of central Winona,
southeastern Buffalo and southwestern Trempealeau Counties through
745 AM CDT...
At 721 AM CDT, Doppler radar was tracking a strong thunderstorm over
Winona, moving east at 35 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...
Winona, Goodview, Trempealeau, Fountain City, Stockton, and
Minnesota City.
This includes Interstate 90 in Minnesota between mile markers 254 and
255, and between mile markers 263 and 266.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 4412 9177 4411 9136 4390 9146 4400 9184
TIME...MOT...LOC 1221Z 274DEG 29KT 4404 9169
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH
$$
SkowThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 6:26 AM CDT | Special Weather Statement | ARX | Buffalo | 34 min |
| Aug 7, 7:40 AM CDT | Special Weather Statement | ARX | La Crosse | 35 min |
| Aug 7, 9:17 AM CDT | Special Weather Statement | ARX | Juneau | 28 min |
| Aug 7, 10:12 AM CDT | Special Weather Statement | ARX | Adams | 33 min |
| Aug 7, 11:17 AM CDT | Special Weather Statement | ARX | Crawford | 28 min |
| Aug 7, 11:24 AM CDT | Severe Thunderstorm Warning | ARX | La Crosse, Vernon | 27 min |
| Aug 7, 11:26 AM CDT | Severe Thunderstorm Warning | ARX | Crawford, Richland, Vernon | 21 min |
| Aug 7, 12:19 PM CDT | Special Weather Statement | ARX | Richland | 26 min |
| Aug 7, 12:59 PM CDT | Areal Flood Advisory | ARX | Buffalo | 2 hr |
| Aug 7, 1:17 PM CDT | Severe Thunderstorm Warning | ARX | Richland, Vernon | 58 min |
| Aug 7, 1:48 PM CDT | Special Weather Statement | ARX | La Crosse | 27 min |
| Aug 7, 2:14 PM CDT | Special Weather Statement | ARX | La Crosse | 31 min |
| Aug 7, 2:23 PM CDT | Areal Flood Advisory | ARX | La Crosse, Trempealeau | 112 min |
| Aug 7, 3:02 PM CDT | River Flood Warning | ARX | Monroe, Vernon | 21 days |
| Aug 7, 3:02 PM CDT | River Flood Warning | ARX | Vernon | 4 days |
| Aug 7, 3:02 PM CDT | River Flood Warning | ARX | Richland, Vernon | 4 days |
| Aug 7, 3:02 PM CDT | River Flood Warning | ARX | Richland, Vernon | 61 hr |
| Aug 7, 3:02 PM CDT | River Flood Warning | ARX | Buffalo, Trempealeau | 19 hr |
| Aug 7, 3:07 PM CDT | Areal Flood Advisory | ARX | La Crosse | 74 min |
| Aug 7, 3:17 PM CDT | Special Weather Statement | ARX | Vernon | 73 min |
| Aug 7, 3:23 PM CDT | Flash Flood Warning | ARX | La Crosse, Monroe | 3 hr |
| Aug 7, 3:35 PM CDT | Severe Thunderstorm Warning | ARX | Vernon | 55 min |
| Aug 7, 3:52 PM CDT | Severe Thunderstorm Warning | ARX | Crawford | 38 min |
| Aug 7, 4:00 PM CDT | Tornado Warning | ARX | Crawford | 30 min |
| Aug 7, 4:05 PM CDT | Severe Thunderstorm Warning | ARX | Richland | 40 min |
| Aug 7, 4:19 PM CDT | Tornado Warning | ARX | Crawford, Grant | 41 min |
| Aug 7, 4:27 PM CDT | Flash Flood Warning | ARX | Vernon | 3 hr |
| Aug 7, 4:56 PM CDT | Tornado Warning | ARX | Grant | 19 min |
| Aug 7, 5:53 PM CDT | Severe Thunderstorm Warning | ARX | Juneau, Monroe, Vernon | 37 min |
| Aug 7, 6:18 PM CDT | Flash Flood Watch | ARX | Adams, Buffalo, Clark, Crawford, Jackson, Juneau and 5 more | 35 hr |
| Aug 7, 10:29 AM CDT | Special Weather Statement | ARX | Olmsted | 31 min |
| Aug 7, 10:33 AM CDT | Severe Thunderstorm Warning | ARX | Dodge, Olmsted, Wabasha | 42 min |
| Aug 7, 11:14 AM CDT | Special Weather Statement | ARX | Wabasha | 31 min |
| Aug 7, 12:12 PM CDT | Special Weather Statement | ARX | Wabasha | 18 min |
| Aug 7, 12:23 PM CDT | Special Weather Statement | ARX | Olmsted | 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.