Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 56, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Jul 27, 2021, 8:30 PM CDT for Olmsted County, Wabasha County, Winona County, Minnesota. It was in force for 45 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 27, 2021, 8:30 PM CDT (01:30 UTC)
- Expired
- Jul 27, 2021, 9:15 PM CDT
- In force
- 45 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Olmsted County, MN, Wabasha County, MN, Winona County, MN
The radar
The La Crosse radar (KARX), 83 km from the middle of the area, began a volume at 01:31 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 27, 9:10 PM CDT | HAIL 1 | 1 N Eyota, MN | PUBLIC REPORT VIA TWITTER AND KAAL TV. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 27, 8:03 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 1.5 hours before the alert went out and 140 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
- 4029 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 1142 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 6.6
The text
As transmitted.
530
WUUS53 KARX 280130
SVRARX
MNC109-157-169-280215-
/O.NEW.KARX.SV.W.0056.210728T0130Z-210728T0215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service La Crosse WI
830 PM CDT Tue Jul 27 2021
The National Weather Service in La Crosse has issued a
* Severe Thunderstorm Warning for...
Northwestern Winona County in southeastern Minnesota...
Eastern Olmsted County in southeastern Minnesota...
Southern Wabasha County in southeastern Minnesota...
* Until 915 PM CDT.
* At 830 PM CDT, a severe thunderstorm was located near Plainview, or
15 miles southwest of Wabasha, moving southeast at 10 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
* This severe thunderstorm will be near...
Elgin around 845 PM CDT.
Plainview around 900 PM CDT.
Other locations impacted by this severe thunderstorm include South
Troy, Whitewater State Park, County Roads 9 And 10, Rattelsnake
Point, Potsdam, County Roads 28 And 31 and Rattlesnake Ridge.
This includes Interstate 90 in Minnesota between mile markers 225 and
233.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4421 9254 4431 9219 4422 9188 4421 9187
4420 9187 4418 9184 4387 9214
TIME...MOT...LOC 0130Z 299DEG 11KT 4422 9227
HAIL...1.00IN
WIND...<50MPH
$$
Peters2 follow-up statements
585 WWUS53 KARX 280149 SVSARX Severe Weather Statement National Weather Service La Crosse WI 849 PM CDT Tue Jul 27 2021 MNC109-157-169-280215- /O.CON.KARX.SV.W.0056.000000T0000Z-210728T0215Z/ Winona MN-Olmsted MN-Wabasha MN- 849 PM CDT Tue Jul 27 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR WEST CENTRAL WINONA...EASTERN OLMSTED AND SOUTH CENTRAL WABASHA COUNTIES... At 849 PM CDT, a severe thunderstorm was located over Elgin, or 14 miles northeast of Rochester, moving southeast at 20 mph. HAZARD...Half dollar size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. This severe storm will be near... Eyota around 905 PM CDT. Dover around 925 PM CDT. St. Charles around 930 PM CDT. Other locations impacted by this severe thunderstorm include Ringe, Whitewater State Park, County Roads 9 And 10, County Roads 79 And 2, Carley State Park, Elba and Beaver. This includes Interstate 90 in Minnesota between mile markers 225 and 233. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4413 9244 4421 9219 4411 9191 4387 9214 TIME...MOT...LOC 0149Z 321DEG 16KT 4411 9223 HAIL...1.25IN WIND...<50MPH $$ Peters
476 WWUS53 KARX 280203 SVSARX Severe Weather Statement National Weather Service La Crosse WI 903 PM CDT Tue Jul 27 2021 MNC109-157-169-280215- /O.CON.KARX.SV.W.0056.000000T0000Z-210728T0215Z/ Winona MN-Olmsted MN-Wabasha MN- 903 PM CDT Tue Jul 27 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR WEST CENTRAL WINONA...SOUTHEASTERN OLMSTED AND SOUTH CENTRAL WABASHA COUNTIES... At 902 PM CDT, a severe thunderstorm was located near Elgin, or 11 miles east of Rochester, moving south at 20 mph. HAZARD...Half dollar size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. This severe storm will be near... Eyota around 915 PM CDT. Dover around 925 PM CDT. St. Charles around 930 PM CDT. Other locations impacted by this severe thunderstorm include Whitewater State Park, County Roads 9 And 10, Carley State Park, Elba, Little Valley, Viola and Lazy D Campground. This includes Interstate 90 in Minnesota between mile markers 225 and 233. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Continuous cloud to ground lightning is occurring with this storm. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning. && LAT...LON 4408 9238 4415 9223 4408 9194 4387 9214 TIME...MOT...LOC 0202Z 339DEG 17KT 4407 9225 HAIL...1.25IN WIND...<50MPH $$ Peters
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 9:16 PM CDT | Severe Thunderstorm Warning | ARX | Fillmore, Olmsted, Winona | 44 min |
| Jul 27, 9:48 PM CDT | Severe Thunderstorm Warning | ARX | Fillmore, Olmsted | 42 min |
| Jul 27, 10:24 PM CDT | Special Weather Statement | ARX | Fillmore | 81 min |
| Jul 28, 8:43 AM CDT | Special Weather Statement | ARX | Dodge, Mower | 47 min |
| Jul 28, 9:17 AM CDT | Special Weather Statement | ARX | Mower, Olmsted, Wabasha | 28 min |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.