Alert archive / Minnesota / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 77, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at May 26, 2026, 6:16 PM CDT for Mower County, Minnesota. It was in force for 29 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
- May 26, 2026, 6:16 PM CDT (23:16 UTC)
- Expired
- May 26, 2026, 6:45 PM CDT
- In force
- 29 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Mower County, MN
The radar
The La Crosse radar (KARX), 127 km from the middle of the area, began a volume at 23:19 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 11.3 hours before the alert went out and 153 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
- 358 J/kg
- Mixed-layer CIN
- -232 J/kg
- Mixed-layer LCL
- 1737 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
400
WUUS53 KARX 262316
SVRARX
MNC099-262345-
/O.NEW.KARX.SV.W.0077.260526T2316Z-260526T2345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service La Crosse WI
616 PM CDT Tue May 26 2026
The National Weather Service in La Crosse has issued a
* Severe Thunderstorm Warning for...
Central Mower County in southeastern Minnesota...
* Until 645 PM CDT.
* At 615 PM CDT, a severe thunderstorm was located near Rose Creek,
or 11 miles east of Austin, moving east at 10 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will remain over mainly rural areas of
central Mower County, including the following locations... Elkton
and Dexter.
This includes Interstate 90 in Minnesota between mile markers 186 and
195.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4355 9283 4367 9285 4375 9264 4357 9260
TIME...MOT...LOC 2315Z 249DEG 10KT 4362 9276
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Naylor2 follow-up statements
503 WWUS53 KARX 262325 SVSARX Severe Weather Statement National Weather Service La Crosse WI 625 PM CDT Tue May 26 2026 MNC099-262345- /O.CON.KARX.SV.W.0077.000000T0000Z-260526T2345Z/ Mower MN- 625 PM CDT Tue May 26 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR CENTRAL MOWER COUNTY... At 624 PM CDT, a severe thunderstorm was located near Adams, or 13 miles east of Austin, moving east at 20 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Adams, Rose Creek, Dexter, and Elkton. This includes Interstate 90 in Minnesota between mile markers 186 and 195. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4355 9283 4367 9285 4375 9264 4357 9260 TIME...MOT...LOC 2324Z 263DEG 15KT 4364 9270 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Naylor
309 WWUS53 KARX 262335 SVSARX Severe Weather Statement National Weather Service La Crosse WI 635 PM CDT Tue May 26 2026 MNC099-262345- /O.EXP.KARX.SV.W.0077.000000T0000Z-260526T2345Z/ Mower MN- 635 PM CDT Tue May 26 2026 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MOWER COUNTY WILL EXPIRE AT 645 PM CDT... The storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. Therefore, the warning will be allowed to expire. However, small hail and gusty winds are still possible with this thunderstorm. && LAT...LON 4355 9283 4367 9285 4375 9264 4357 9260 TIME...MOT...LOC 2335Z 249DEG 10KT 4365 9267 $$ Naylor
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS La Crosse, WI wrote its last area forecast discussion before this severe thunderstorm warning went out at May 26, 11:32 AM CDT, 6 hours 44 minutes earlier. Its key messages:
- Good chance (50-60%) for showers and thunderstorms this afternoon into tonight which will bring a small risk for strong wind gusts. Potential (20-30%) for the same exists again Wednesday afternoon/evening.
- Above normal temperatures continue through the weekend
Area forecast discussion, May 26, 11:32 AM CDT, 6 hours 44 minutes before
Area Forecast Discussion National Weather Service La Crosse WI 1132 AM CDT Tue May 26 2026 .KEY MESSAGES... - Good chance (50-60%) for showers and thunderstorms this afternoon into tonight which will bring a small risk for strong wind gusts. Potential (20-30%) for the same exists again Wednesday afternoon/evening. - Above normal temperatures continue through the weekend && .DISCUSSION... Issued at 1131 AM CDT Tue May 26 2026 2 shots for showers and storms with risk for strong wind gusts 16z WV satellite shows a disturbance over central MN with some associated convection slowly churning east-northeastward on the northern side of an upper ridge centered over IA. At the surface, dewpoints are generally in the upper 50s and lower 60s, a small step upward compared to yesterday. 26.12z RAOB at MPX and 26.00z RAOB at DVN show a small uptick in overall moisture through the column as well with PWAT values approaching 1 inch. This afternoon into tonight, central MN disturbance will roll east on the north side of the IA upper ridge before an additional shortwave dives southeast out of MN, likely (60%) kicking off showers and thunderstorms. Given the nearby presence of the ridge, flow through the column is weak with little shear, so organized convection is not expected and the development of stronger cells will depend on outflow boundary interactions. That said, 26.12z HREF DCAPE values range from 750-925 J/kg with a well-mixed boundary layer expected, so a stray severe wind gust could (5%) occur. Thinking severe hail is even less likely given relatively skinny instability profiles and no rotating updrafts to induce greater residence time for developing hailstones. Wednesday afternoon and evening, additional convection may develop as another disturbance dives southeast out of northern MN. With the aforementioned upper ridge becoming centered over the Dakotas, uptick in flow aloft will lead to a bit more deep shear - around 25 knots - so cannot rule out weakly organized convection. However, progged soundings show a return of the mid-level dry air that prevented updrafts from surviving on Monday. Therefore, while a severe gust or hail report would be a bit more probable should thunderstorms develop, the overall chance to get a storm at all is lower (30%) compared to Tuesday. Above normal temperatures continue While a backdoor front pushes through Wednesday night, this should only knock Thursday's temperatures back to around normal for late May with highs in the mid to upper 70s. After a good post-frontal radiational cooling night Thursday, when some lower 40s are possible in the cranberry region of Wisconsin, temperatures return to several degrees above normal with highs in the upper 70s to mid 80s through Tuesday. Exact values are still in a bit more question than usual given our placement between the central CONUS ridge and persistent eastern troughiness, but 26.13z NBM interquartile spread consistently covers the aforementioned range. Given overall pattern, it appears highly doubtful enough moisture will reach the CWA for precipitation to happen, even on days when the ridge remains far enough west for northwesterly flow aloft to become predominant. && .AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/... Issued at 1112 AM CDT Tue May 26 2026 A MCV will be the focus of showers and thunderstorms late this afternoon and evening west of the Mississippi River and from mid evening into the overnight for western Wisconsin. With so much inconsistency on where they may occur in the CAMs, opted to just lower ceilings to 10K feet at this time. && .ARX WATCHES/WARNINGS/ADVISORIES... WI...None. MN...None. IA...None. && DISCUSSION...Ferguson AVIATION...Boyne
Hazardous weather outlook, May 26, 11:47 AM CDT, 6 hours 29 minutes before
Hazardous Weather Outlook National Weather Service La Crosse WI 1147 AM CDT Tue May 26 2026 IAZ008>011-MNZ079-086>088-094>096-WIZ017-029-032>034-041>044- 053>055-272100- Mitchell-Howard-Winneshiek-Allamakee-Wabasha-Dodge-Olmsted-Winona- Mower-Fillmore-Houston-Taylor-Clark-Buffalo-Trempealeau-Jackson- La Crosse-Monroe-Juneau-Adams-Vernon-Crawford-Richland- 1147 AM CDT Tue May 26 2026 This Hazardous Weather Outlook is for portions of southeast Minnesota...northeast Iowa and southwest into central Wisconsin. .DAY ONE...This Afternoon and Tonight Thunderstorms will likely (60 percent chance) develop later this afternoon and evening and continue into the overnight. Some thunderstorms may bring strong wind gusts. .DAYS TWO THROUGH SEVEN...Wednesday through Monday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... No action needed. .EMERGENCY MANAGEMENT COORDINATION... No webinar is scheduled. IAZ018-019-029-030-WIZ061-272100- Floyd-Chickasaw-Fayette-Clayton-Grant- 1147 AM CDT Tue May 26 2026 This Hazardous Weather Outlook is for portions of north central Iowa...northeast Iowa and southwest Wisconsin. .DAY ONE...This Afternoon and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... No action needed. .EMERGENCY MANAGEMENT COORDINATION... No webinar is scheduled. APF
In the hours before
Special weather statement, May 26, 5:18 PM CDT, 58 minutes before
Special Weather Statement
National Weather Service La Crosse WI
518 PM CDT Tue May 26 2026
MNZ079-WIZ032-262245-
Wabasha MN-Buffalo WI-
518 PM CDT Tue May 26 2026
...A STRONG THUNDERSTORM WILL IMPACT EAST CENTRAL WABASHA AND WEST
CENTRAL BUFFALO COUNTIES THROUGH 545 PM CDT...
At 517 PM CDT, Doppler radar was tracking a strong thunderstorm over
Kellogg, or near Wabasha, moving east at 10 mph.
HAZARD...Wind gusts up to 50 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
This strong thunderstorm will be near...
Alma and Kellogg around 525 PM CDT.
Other locations impacted by this storm include Rattlesnake Ridge,
Lock And Dam 4, Pioneer Campground, Weaver, Highways 37 And 35, West
Newton, Tell, Conception, and Kruger Campground.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4424 9210 4433 9211 4442 9186 4421 9186
TIME...MOT...LOC 2217Z 267DEG 10KT 4430 9202
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH
NaylorSpecial weather statement, May 26, 5:30 PM CDT, 46 minutes before
Special Weather Statement
National Weather Service La Crosse WI
530 PM CDT Tue May 26 2026
WIZ029-262300-
Clark WI-
530 PM CDT Tue May 26 2026
...STRONG THUNDERSTORMS WILL IMPACT EAST CENTRAL CLARK COUNTY THROUGH
600 PM CDT...
At 530 PM CDT, Doppler radar was tracking a cluster of strong
thunderstorms near Neillsville, moving east at 10 mph.
HAZARD...Wind gusts up to 50 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
This storm will remain over mainly rural areas of east central Clark
County, including the following locations... Chili, Hog Corners,
Highway 73 And 98, Chili Corners, Christie, Globe, Granton, Veefkind,
Lynn, and County Roads H And K.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4457 9065 4470 9076 4483 9032 4457 9032
TIME...MOT...LOC 2230Z 247DEG 7KT 4464 9060
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH
NaylorSpecial weather statement, May 26, 5:41 PM CDT, 35 minutes before
Special Weather Statement
National Weather Service La Crosse WI
541 PM CDT Tue May 26 2026
WIZ029-034-262315-
Jackson WI-Clark WI-
541 PM CDT Tue May 26 2026
...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN CLARK AND EAST
CENTRAL JACKSON COUNTIES THROUGH 615 PM CDT...
At 541 PM CDT, Doppler radar was tracking a strong thunderstorm 10
miles southeast of Shortville, or 15 miles southeast of Neillsville,
moving northeast at 15 mph.
HAZARD...Wind gusts up to 50 mph and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
This storm will remain over mainly rural areas of southeastern Clark
and east central Jackson Counties, including the following
locations... Pray and City Point.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4427 9047 4439 9055 4451 9032 4428 9032
TIME...MOT...LOC 2241Z 245DEG 15KT 4437 9041
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH
NaylorSpecial weather statement, May 26, 5:50 PM CDT, 26 minutes before
Special Weather Statement
National Weather Service La Crosse WI
550 PM CDT Tue May 26 2026
MNZ094-262315-
Mower MN-
550 PM CDT Tue May 26 2026
...A STRONG THUNDERSTORM WILL IMPACT CENTRAL MOWER COUNTY THROUGH 615
PM CDT...
At 550 PM CDT, Doppler radar was tracking a strong thunderstorm near
Rose Creek, or 7 miles east of Austin, moving east at 15 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 hail damage to vegetation is
possible.
This storm will remain over mainly rural areas of central Mower
County, including the following locations... Elkton, Renova, and
Dexter.
This includes Interstate 90 in Minnesota between mile markers 181 and
198.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4358 9287 4371 9295 4382 9265 4359 9259
TIME...MOT...LOC 2250Z 265DEG 15KT 4367 9282
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH
NaylorThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 5:50 PM CDT | Special Weather Statement | ARX | Mower | 25 min |
| May 26, 6:53 PM CDT | Special Weather Statement | ARX | Mower | 37 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2026Every severe thunderstorm warning in 2026
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.