National Weather Service United States Department of Commerce

Overview

Multiple rounds of storms moved through the Upper Mississippi River Valley on Tuesday, May 21st. During the morning hours, non-severe storms produced heavy rainfall and frequent lightning. By early afternoon there was a lull in precipitation that helped the atmosphere recover and reenergize ahead of a fast-moving line of severe storms moving across Iowa.

The line of severe storms moved into southeast Minnesota and northeast Iowa between 4-5 p.m. and produced widespread wind damage and over 10 tornadoes as they marched northeast across the area. Tree damage and power outages were plentiful with some structures damaged as well. A few storms also produced large hail.

 

Radar Image
Radar Reflectivity Loop (4-10pm CDT)

Tornadoes:

 

Tornado - Winona Co / Rollingstone
WINONA (MN) & BUFFALO (WI) COUNTIES

Date May 21, 2024
Time (Local) 6:01-6:19 p.m. CDT
EF Rating EF1
Est. Peak Winds 105 mph
Path Length 19.9 miles
Max Width 110 yards
Injuries/Deaths 0 / 0

Summary:

This fast-moving tornado started near St. Charles and tracked northeastward, causing EF-0 to EF-1 damage to farmsteads and trees before hitting the northwest side of Rollingstone, where it destroyed a barn and damaged a gas station. Inflow into the tornado caused widespread tree damage in Rollingstone. The tornado crossed the Mississippi River into Wisconsin and caused pockets of tree damage for a few miles before dissipating.

Damage photo Damage photo Damage photo Damage photo
Damage northwest of Utica, MN Damage near Rollingstone, MN Damage near Rollingstone, MN Tree damage at Merrick State Park

 

Tornado - Cochrane
BUFFALO COUNTY, WI

Date May 21, 2024
Time (Local) 6:14-6:17 p.m. CDT
EF Rating EF1
Est. Peak Winds 90 mph
Path Length 4.0 miles
Max Width 100 yards
Injuries/Deaths 0 / 0

Summary:

This tornado developed just south of Cochrane and tracked over the golf course on the east side of town. Multiple farmsteads were hit afterwards with outbuildings and trees damaged.

Damage photo Damage photo Damage photo
Collapsed barn near Cochrane. Tree and outbuilding damage east of Cochrane. Outbuilding damage northeast of Cochrane.

 

Tornado - Belvidere Ridge
BUFFALO COUNTY, WI

Date May 21, 2024
Time (Local) 6:17-6:20 p.m. CDT
EF Rating EF1
Est. Peak Winds 90 mph
Path Length 2.8 miles
Max Width 45 yards
Injuries/Deaths 0 / 0

Summary:

This tornado started along the ridgetops just east of the Mississippi River passing through mainly rural areas. Before dissipating it hit a garage and outbuilding along Belvidere Ridge road and proceeded to knock down a high voltage line.

Damage photo Damage photo Damage photo Damage photo
Damage along Belvidere Ridge Rd. Courtesy Jarin Henthorne Courtesy Jarin Henthorne Courtesy Jarin Henthorne

 

Tornado - 5 mi E Arcadia
TREMPEALEAU COUNTY, WI

Date May 21, 2024
Time (Local) 6:34-6:35 p.m. CDT
EF Rating EF1
Est. Peak Winds 95 mph
Path Length 0.8 miles
Max Width 150 yards
Injuries/Deaths 0 / 0

Summary:

This very short-lived tornado damaged a single house along Burlington Road. A prominent TDS was observed with this tornado on radar.

Damage photo Damage photo Damage photo Damage photo
Destroyed garage. Snapped trees along Burlington Rd. Collapsed barn. Debris from outbuildings to the east of a house impaled on the west side.

 

Tornado - NW of Alma Center
JACKSON COUNTY, WI

Date May 21, 2024
Time (Local) 6:59-7:02 p.m. CDT
EF Rating EF1
Est. Peak Winds 90 mph
Path Length 3.1 miles
Max Width 75 yards
Injuries/Deaths 0 / 0

Summary:

This shorter-lived tornado damaged mainly trees along its path with the most intense damage occurring along Old Stage Road in northwest Jackson County.

Damage photo Damage photo
Tree damage near the end of the tornado path. Tree damage along Old Stage Road.

 

Tornado - NW of Neillsville
CLARK COUNTY, WI

Date May 21, 2024
Time (Local) 7:08-7:15 p.m. CDT
EF Rating EF1
Est. Peak Winds 105 mph
Path Length 7.1 miles
Max Width 300 yards
Injuries/Deaths 0 / 0

Summary:

This stronger EF-1 tornado leveled trees and powerlines along an intermittent track that was mixed with downburst winds. The tornado was overtaken by a downburst, which caused pockets of tree and outbuilding damage for another 7 miles.

Damage photo Damage photo Damage photo
Powerlines down along Highway 10 west of Neillsville. Pockets of intense tree damage north of Highway 10. Outbuilding destroyed by downburst winds after the tornado dissipated.

 

Tornado - NW of Loyal
CLARK COUNTY, WI

Date May 21, 2024
Time (Local) 7:20-7:29 p.m. CDT
EF Rating EF1
Est. Peak Winds 100 mph
Path Length 9.4 miles
Max Width 120 yards
Injuries/Deaths 0 / 0

Summary:

This tornado damaged several farmsteads, powerlines, and trees. It was strongest to the west of Loyal, with the path becoming weaker and less defined to the north of town.

Damage photo Damage photo Damage photo
Downed farm silo and destroyed outbuildings on a farm at the start of the tornado path. Path of the tornado through the trees. Damaged outbuilding and flipped boat near the end of the tornado path.

 

Tornado - SW of Atwood
CLARK COUNTY, WI

Date May 21, 2024
Time (Local) 7:27-7:31 p.m. CDT
EF Rating EF1
Est. Peak Winds 95 mph
Path Length 4.2 miles
Max Width 150 yards
Injuries/Deaths 0 / 0

Summary:

This tornado occurred on the left flank of a broad area of downburst wind damage with the tornado path intermittent in nature as the downburst mixed in at times. Multiple farmsteads were hit with damage mainly to trees and outbuildings.

Damage photo Damage photo Damage photo
Collapsed outbuilding at the start of the tornado track. Path of heavy tree damage. Collapsed outbuilding at the end of the tornado track.

 

Tornado - SW of Riplinger
CLARK COUNTY, WI

Date May 21, 2024
Time (Local) 7:29-7:31 p.m. CDT
EF Rating EF1
Est. Peak Winds 90 mph
Path Length 2.2 miles
Max Width 75 yards
Injuries/Deaths 0 / 0

Summary:

This was a brief tornado that damaged a farmstead and trees.

Damage photo Damage photo
Cleaned up tree damage on a farmstead at the start of the tornado track. Debris from an outbuilding thrown into a field and downstream tree line.

 

Tornado - NE of Riplinger
CLARK COUNTY, WI

Date May 21, 2024
Time (Local) 7:33-7:34 p.m. CDT
EF Rating EF0
Est. Peak Winds 85 mph
Path Length 1.4 miles
Max Width 75 yards
Injuries/Deaths 0 / 0

Summary:

This was a weak and brief tornado that damaged a farmstead and a grove of trees.

Damage photo
Destroyed outbuilding with debris scattered in the field. Garage and car on the farm also damaged.

 

Tornado - Unity
CLARK & MARATHON COUNTIES, WI

Date May 21, 2024
Time (Local) 7:34-7:37 p.m. CDT
EF Rating EF1
Est. Peak Winds 105 mph
Path Length 3.5 miles
Max Width 110 yards
Injuries/Deaths 0 / 0

Summary:

A tornado touched down southwest of Unity, moved through the village, and ended northeast of town in Marathon County. Besides damage to trees and power lines, several homes and garages had extensive damage, especially to roofs.

Damage photo Damage photo Damage photo Damage photo
Destroyed garage in Unity. Destroyed garage in Unity. Uprooted trees in Unity. Uprooted trees in Unity.

 

The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:

 

EF0
Weak

65-85 mph
EF1
Moderate
86-110 mph
EF2
Significant
111-135 mph
EF3
Severe
136-165 mph
EF4
Extreme
166-200 mph
EF5
Catastrophic
200+ mph
ef-scale

Wind & Hail:

Wind

Public Information Statement
National Weather Service La Crosse WI
1111 AM CDT Wed May 22 2024

...HIGHEST OBSERVED WIND REPORTS MAY 21 2024...

Location                     Speed     Time/Date

I-90 Eb At Ush 53 Nb         65 MPH    0651 PM 05/21
New Hampton                  64 MPH    0605 PM 05/21
La Crosse Regional Airport   63 MPH    0641 PM 05/21
T.h.52 - Canton - Mp 2       63 MPH    0615 PM 05/21
U.s.218 - Lyle - Mp 4        60 MPH    0530 PM 05/21
Rochester International Airp 59 MPH    0546 PM 05/21
U.s.14 - Byron - Mp 200      59 MPH    0540 PM 05/21
Lancaster                    57 MPH    0841 PM 05/21
I-90 - Eyota - Mp 226        57 MPH    0600 PM 05/21
U.s.63 - Le Roy - Mp 0.5     57 MPH    0555 PM 05/21
Greenwood                    56 MPH    0725 PM 05/21
Saratoga                     54 MPH    0535 PM 05/21
Lancaster                    54 MPH    0805 PM 05/21
Mayo Helipad                 53 MPH    0555 PM 05/21
I-90 - Dexter - Mp 195       53 MPH    0535 PM 05/21
Platteville Municipal Airpor 52 MPH    0655 PM 05/21
Sparta/Fort McCoy Airport    51 MPH    0717 PM 05/21
Volk Field                   51 MPH    0746 PM 05/21
I-90 - Ridgeway - Mp 261     50 MPH    0635 PM 05/21
U.s.63 - Stewartville - Mp 3 50 MPH    0550 PM 05/21
Charles City Airport         49 MPH    0555 PM 05/21
Decorah                      48 MPH    0635 PM 05/21
Onalaska                     47 MPH    0656 PM 05/21
Greene                       46 MPH    0515 PM 05/21
Westboro                     46 MPH    0815 PM 05/21
Preston Airport              46 MPH    0555 PM 05/21
Saratoga                     45 MPH    0545 PM 05/21
Oelwein Municipal Airport    45 MPH    0655 PM 05/21
Winona Municipal Airport     45 MPH    0615 PM 05/21
Prairie Du Chien  Airport    45 MPH    0735 PM 05/21
3 NE Lublin                  44 MPH    0814 PM 05/21
Necedah                      44 MPH    0848 PM 05/21
Decorah Municipal Airport    41 MPH    0635 PM 05/21
Boscobel                     40 MPH    0603 PM 05/21
Mauston Airport              40 MPH    0815 PM 05/21
Boscobel Airport             40 MPH    0600 PM 05/21
Dodge Center Airport         40 MPH    0535 PM 05/21
Lyle                         39 MPH    0510 PM 05/21
Rochester                    39 MPH    1215 PM 05/21
Black River Falls            39 MPH    0710 PM 05/21
Hawkeye                      37 MPH    1205 AM 05/22
U.s.63 - Lake City - Mp 62.9 37 MPH    1155 AM 05/21
U.s.61 - Winona              37 MPH    0650 PM 05/21
1 E Black River Falls        36 MPH    0715 PM 05/21
Steuben                      36 MPH    0725 PM 05/21
Austin Municipal Airport     36 MPH    0115 AM 05/22
Crawford Co. Sth 27 Sb 0.25  36 MPH    0720 PM 05/21
Hayfield                     35 MPH    0527 PM 05/21
Monona                       35 MPH    0659 PM 05/21
Uscrn Site Near Necedah 5wnw 35 MPH    0800 PM 05/21
Platteville                  34 MPH    0855 PM 05/21
Saint Ansgar                 33 MPH    1125 AM 05/21
Black River Falls Area Airpo 33 MPH    0715 PM 05/21
Austin                       32 MPH    1125 AM 05/21
Riceville                    32 MPH    0615 PM 05/21
2 NE Dougherty               31 MPH    0535 PM 05/21
T.h.44 - Hokah - Mp 60       31 MPH    0645 PM 05/21

Hail

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0357 PM     Hail             Dickeyville             42.63N 90.59W
05/21/2024  M1.00 Inch       Grant              WI   Emergency Mngr   

             

0400 PM     Hail             Dickeyville             42.63N 90.59W
05/21/2024  M1.75 Inch       Grant              WI   Law Enforcement  

             

0404 PM     Hail             Platteville             42.74N 90.48W
05/21/2024  M0.50 Inch       Grant              WI   Fire Dept/Rescue 

             

0411 PM     Hail             Platteville             42.74N 90.48W
05/21/2024  E0.70 Inch       Grant              WI   Public           

             

0413 PM     Hail             2 NNW Platteville       42.76N 90.50W
05/21/2024  M0.50 Inch       Grant              WI   Public           

 

0529 PM     Hail             5 ESE Douglas           44.09N 92.48W
05/21/2024  M0.25 Inch       Olmsted            MN   Cocorahs         

 

0531 PM     Hail             3 NNE Rochester         44.05N 92.45W
05/21/2024  M0.75 Inch       Olmsted            MN   Public           

 

0539 PM     Hail             3 SSW Zumbro Falls      44.24N 92.45W
05/21/2024  M0.25 Inch       Wabasha            MN   Cocorahs         

 

0614 PM     Hail             Platteville             42.74N 90.48W
05/21/2024  E1.50 Inch       Grant              WI   Broadcast Media  

             
0618 PM     Hail             1 NW Platteville        42.74N 90.49W
05/21/2024  M1.00 Inch       Grant              WI   Public           

             
0636 PM     Hail             1 NW Platteville        42.74N 90.49W
05/21/2024  E1.00 Inch       Grant              WI   Public           

            Report from mPING: Quarter (1.00 in.). 

 

0744 PM     Hail             2 SSE Patch Grove       42.91N 90.96W
05/21/2024  M0.70 Inch       Grant              WI   Public           

 

0803 PM     Hail             3 NW Burton             42.75N 90.84W
05/21/2024  E0.75 Inch       Grant              WI   Public           


Rain Reports

Public Information Statement
National Weather Service La Crosse WI
442 AM CDT Wed May 22 2024

...24 HOUR RAIN REPORTS...

Location                     Amount    Time/Date       Lat/Lon              

...Iowa...

...Allamakee County...
3 S Dorchester               1.86 in   0400 AM 05/22   43.42N/91.51W        

...Chickasaw County...
Ionia 2W                     2.65 in   0345 AM 05/22   43.03N/92.50W        
New Hampton                  2.42 in   0427 AM 05/22   43.05N/92.30W        

...Clayton County...
Mcgregor                     2.73 in   0434 AM 05/22   43.02N/91.19W        
1 WSW Marquette              1.88 in   0400 AM 05/22   43.04N/91.21W        
Littleport                   1.88 in   0345 AM 05/22   42.75N/91.37W        
Monona                       1.74 in   0434 AM 05/22   43.04N/91.39W        
Big Spring Fish Hatchery     0.96 in   0400 AM 05/22   42.91N/91.47W        

...Floyd County...
Charles City                 3.69 in   0606 PM 05/21   43.05N/92.67W        
2 NE Dougherty               1.73 in   0430 AM 05/22   42.95N/93.01W        

...Howard County...
Saratoga                     1.96 in   0415 AM 05/22   43.35N/92.42W        
Riceville                    1.44 in   0430 AM 05/22   43.36N/92.48W        

...Mitchell County...
Stacyville                   0.52 in   0426 AM 05/22   43.44N/92.78W        

...Winneshiek County...
Decorah                      2.07 in   0700 PM 05/21   43.30N/91.80W        
Decorah                      1.51 in   0434 AM 05/22   43.30N/91.79W              
Decorah Municipal Airport    1.37 in   0415 AM 05/22   43.27N/91.72W        
1 ENE Jackson Junction       1.17 in   0435 AM 05/22   43.11N/92.04W        

...Minnesota...

...Dodge County...
Hayfield                     0.95 in   0427 AM 05/22   43.89N/92.85W              

...Fillmore County...
Lanesboro                    1.21 in   0430 AM 05/22   43.72N/91.98W        
1 NNW Fillmore               0.60 in   0430 AM 05/22   43.76N/92.27W               

...Houston County...
Mound Prairie                1.87 in   1100 PM 05/21   43.78N/91.45W              
Hokah                        1.37 in   0430 AM 05/22   43.80N/91.43W        

...Mower County...
AUSTIN                       1.08 in   0428 AM 05/22   43.65N/93.00W        
Austin 3 NW - Turtle Creek   0.76 in   0330 AM 05/22   43.65N/92.98W        
Dobbins Creek                0.72 in   0330 AM 05/22   43.68N/92.94W        
Lansing - Cedar River        0.71 in   0330 AM 05/22   43.75N/92.96W        

...Olmsted County...
Rochester                    2.55 in   0415 AM 05/22   44.04N/92.44W        
6 NNW Genoa                  1.09 in   0400 AM 05/22   44.19N/92.65W        
Rochester                    1.07 in   0430 AM 05/22   44.09N/92.51W        
3 W Rochester                0.89 in   0330 AM 05/22   44.02N/92.53W        
Elba 4.7 SW                  0.82 in   0900 PM 05/21   44.04N/92.09W        
Rochester-Cascade Creek      0.69 in   0330 AM 05/22   44.03N/92.47W        
Eyota 2NE                    0.69 in   0330 AM 05/22   44.02N/92.20W        
3 ENE Rochester              0.68 in   0330 AM 05/22   44.03N/92.43W        
Chatfield 1.7 NE             0.65 in   0800 PM 05/21   43.86N/92.17W        
Byron                        0.64 in   0430 AM 05/22   44.04N/92.64W        
1 W Oronoco                  0.64 in   0430 AM 05/22   44.17N/92.55W        
Mayo Helipad                 0.58 in   0415 AM 05/22   44.02N/92.48W        
Rochester International Airp 0.55 in   0354 AM 05/22   43.90N/92.50W                
Stewartville 4.3 E           0.51 in   0430 AM 05/22   43.86N/92.40W        
Rochester-Beltline Bear Cree 0.51 in   0330 AM 05/22   44.01N/92.45W        
5 WSW Rochester              0.47 in   0400 AM 05/22   43.98N/92.56W        
Rochester                    0.44 in   0425 AM 05/22   44.05N/92.45W        
Byron                        0.43 in   0434 AM 05/22   44.03N/92.63W        
Rochester 1.9 SSE            0.41 in   0530 PM 05/21   43.99N/92.47W        
Rochester                    0.28 in   0545 PM 05/21   44.18N/92.41W        

...Wabasha County...
Lake City                    1.50 in   0430 AM 05/22   44.44N/92.28W                
3 ESE Mazeppa                0.76 in   0430 AM 05/22   44.26N/92.49W        
1 N Kellogg                  0.31 in   0400 AM 05/22   44.32N/92.00W        

...Winona County...
Plainview                    0.84 in   0415 AM 05/22   44.05N/91.65W        
Whitewater State Park        0.70 in   0330 AM 05/22   44.05N/92.05W        
1 WSW Elba                   0.68 in   0345 AM 05/22   44.09N/92.03W        
Beaver                       0.62 in   0345 AM 05/22   44.15N/92.00W        
La Crescent 4.0 NNW          0.40 in   0425 AM 05/22   43.88N/91.34W        
1 ESE Winona                 0.37 in   0430 AM 05/22   44.04N/91.63W        
3 NE Nodine                  0.34 in   0330 AM 05/22   43.94N/91.41W        
3 SW Elba                    0.18 in   0330 AM 05/22   44.06N/92.05W              

...Wisconsin...

...Buffalo County...
Mondovi                      0.48 in   0700 PM 05/21   44.56N/91.67W                

...Clark County...
COLBY                        1.23 in   0426 AM 05/22   44.91N/90.32W        
Colby 5.9 WSW                0.19 in   0700 PM 05/21   44.87N/90.42W        

...Crawford County...
Prairie Du Chien  Airport    1.83 in   0415 AM 05/22   43.02N/91.12W        
Steuben                      1.62 in   0345 AM 05/22   43.18N/90.86W        
2.8 E Harpers Ferry          0.97 in   0415 AM 05/22   43.21N/91.10W        

...Grant County...
Boscobel Airport             2.47 in   0427 AM 05/22   43.15N/90.68W        
Boscobel                     2.34 in   0403 AM 05/22   43.15N/90.68W        
Platteville                  0.93 in   0425 AM 05/22   42.74N/90.46W        
Lancaster                    0.57 in   0341 AM 05/22   42.83N/90.69W        
Platteville Municipal Airpor 0.34 in   0415 AM 05/22   42.68N/90.43W               

...Jackson County...
1 E Black River Falls        1.66 in   0415 AM 05/22   44.30N/90.73W        
Black River Falls Area Airpo 1.07 in   0415 AM 05/22   44.25N/90.85W        

...Juneau County...
NECEDAH NWR RY DAM NECEDAH 5 4.32 in   0410 AM 05/22   44.06N/90.17W               
New Lisbon                   2.78 in   0430 AM 05/22   43.87N/90.17W        
Necedah                      2.16 in   0348 AM 05/22   44.03N/90.08W        
Volk Field                   1.28 in   0432 AM 05/22   43.93N/90.27W        
Mauston Airport              0.04 in   0415 AM 05/22   43.83N/90.13W        

...La Crosse County...
Burns                        1.62 in   0427 AM 05/22   43.91N/90.97W        
Onalaska                     1.53 in   0426 AM 05/22   43.89N/91.18W        
Bangor                       1.45 in   0430 AM 05/22   43.89N/90.99W        
La Crosse Regional Airport   1.29 in   0403 AM 05/22   43.88N/91.25W        
La Crosse                    1.08 in   0645 PM 05/21   43.77N/91.22W        

...Monroe County...
Sparta/Fort McCoy Airport    1.13 in   0406 AM 05/22   43.97N/90.73W        

...Taylor County...
Medford                      0.77 in   0415 AM 05/22   45.30N/90.30W        
3 NE Lublin                  0.76 in   0414 AM 05/22   45.11N/90.69W        
Westboro                     0.76 in   0415 AM 05/22   45.37N/90.31W        
Medford Airport              0.57 in   0415 AM 05/22   45.10N/90.30W        

...Trempealeau County...
0.8 SW Pigeon Falls (IFLOWS) 1.18 in   1001 PM 05/21   44.42N/91.22W        
2 ENE Marshland              0.88 in   0430 AM 05/22   44.09N/91.51W        
Blair (IFLOWS)               0.78 in   0319 AM 05/22   44.30N/91.23W        
Trempealeau                  0.72 in   0427 AM 05/22   44.07N/91.51W        
Whitehall (IFLOWS)           0.59 in   0846 PM 05/21   44.37N/91.32W        

...Vernon County...
La Farge                     3.18 in   0415 AM 05/22   43.60N/90.63W        
Readstown                    2.08 in   0400 AM 05/22   43.45N/90.77W        
Genoa                        1.08 in   0421 AM 05/22   43.56N/91.22W        
Genoa Dam 8                  0.55 in   0415 AM 05/22   43.57N/91.23W        

Observations are collected from a variety of sources with varying
equipment and exposures. We thank all volunteer weather observers 
for their dedication. Not all data listed are considered official.

Storm Reports

Preliminary Local Storm Report...Summary
National Weather Service La Crosse WI
852 PM CDT Tue May 21 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0357 PM     Hail             Dickeyville             42.63N 90.59W
05/21/2024  M1.00 Inch       Grant              WI   Emergency Mngr   

             

0400 PM     Hail             Dickeyville             42.63N 90.59W
05/21/2024  M1.75 Inch       Grant              WI   Law Enforcement  

             

0404 PM     Hail             Platteville             42.74N 90.48W
05/21/2024  M0.50 Inch       Grant              WI   Fire Dept/Rescue 

             

0411 PM     Hail             Platteville             42.74N 90.48W
05/21/2024  E0.70 Inch       Grant              WI   Public           

             

0413 PM     Hail             2 NNW Platteville       42.76N 90.50W
05/21/2024  M0.50 Inch       Grant              WI   Public           

             

0515 PM     Tstm Wnd Dmg     2 S Saint Ansgar        43.35N 92.92W
05/21/2024                   Mitchell           IA   Law Enforcement  

            Power lines blown over and grain bin 
            destroyed. 

0520 PM     Tstm Wnd Dmg     2 SW Austin             43.65N 93.00W
05/21/2024                   Mower              MN   Public           

            Report from mPING: Trees uprooted or 
            snapped; Roof blown off. 

0521 PM     Tstm Wnd Dmg     1 E Austin              43.67N 92.95W
05/21/2024                   Mower              MN   Public           

            Large tree limb down. 

0523 PM     Tstm Wnd Dmg     Hayfield                43.89N 92.85W
05/21/2024                   Dodge              MN   Emergency Mngr   

            Tree damage reported. 

0523 PM     Tstm Wnd Dmg     2 W Kasson              44.03N 92.80W
05/21/2024                   Dodge              MN   Emergency Mngr   

            Power lines and semi truck blown over along 
            Highway 14 and 220th Ave. 

0524 PM     Tstm Wnd Gst     West Concord            44.15N 92.90W
05/21/2024  E50 MPH          Dodge              MN   Fire Dept/Rescue 

             

0525 PM     Tstm Wnd Dmg     1 W Rose Creek          43.61N 92.85W
05/21/2024                   Mower              MN   Public           

            Report from mPING: 3-inch tree limbs broken; 
            Power poles broken. 

0529 PM     Hail             5 ESE Douglas           44.09N 92.48W
05/21/2024  M0.25 Inch       Olmsted            MN   Cocorahs         

             

0530 PM     Tstm Wnd Dmg     2 S Rochester           43.99N 92.47W
05/21/2024                   Olmsted            MN   Public           

            15 to 20 inch diameter tree blown down. 

0531 PM     Hail             3 NNE Rochester         44.05N 92.45W
05/21/2024  M0.75 Inch       Olmsted            MN   Public           

             

0535 PM     Tstm Wnd Gst     1 NW Taopi              43.56N 92.65W
05/21/2024  E64 MPH          Mower              MN   Trained Spotter  

             

0535 PM     Tstm Wnd Dmg     1 E Austin              43.67N 92.96W
05/21/2024                   Mower              MN   Public           

            Report from mPING: Trees uprooted or 
            snapped; Roof blown off. 

0538 PM     Tstm Wnd Gst     1 S Harmony             43.54N 92.01W
05/21/2024  M72 MPH          Fillmore           MN   Fire Dept/Rescue 

            Fire Dept. Rescue squad measured 72 mph wind 
            gust in the town of Harmony. 

0538 PM     Tstm Wnd Dmg     1 S Harmony             43.54N 92.01W
05/21/2024                   Fillmore           MN   Fire Dept/Rescue 

            Fire Dept. rescue squad reported 2 trees 
            down in town of Harmony. 

0539 PM     Hail             3 SSW Zumbro Falls      44.24N 92.45W
05/21/2024  M0.25 Inch       Wabasha            MN   Cocorahs         

             

0539 PM     Tstm Wnd Dmg     Spring Valley           43.69N 92.39W
05/21/2024                   Fillmore           MN   Trained Spotter  

            Power lines down. 

0541 PM     Tstm Wnd Dmg     Kasson                  44.03N 92.75W
05/21/2024                   Dodge              MN   Public           

            Large tree split. Also downed large branches 
            and power lines and a rolled semi on Highway 
            14. 

0541 PM     Tstm Wnd Dmg     1 SE Marble Rock        42.96N 92.85W
05/21/2024                   Floyd              IA   Public           

            Report from mPING: 1-inch tree limbs broken; 
            Shingles blown off. 

0546 PM     Tstm Wnd Dmg     1 NW Rochester          44.02N 92.49W
05/21/2024                   Olmsted            MN   Public           

            Large branches down in northwest Rochester. 

0548 PM     Tstm Wnd Gst     Greenleafton            43.58N 92.21W
05/21/2024  M64 MPH          Fillmore           MN   Trained Spotter  

             

0551 PM     Tstm Wnd Dmg     Chatfield               43.84N 92.19W
05/21/2024                   Fillmore           MN   Public           

            Large tree split in half. 

0552 PM     Tstm Wnd Dmg     Charles City            43.07N 92.67W
05/21/2024                   Floyd              IA   Emergency Mngr   

            Trees and power lines down in town. 

0554 PM     Tstm Wnd Gst     3 NNW Stewartville      43.90N 92.50W
05/21/2024  E62 MPH          Olmsted            MN   ASOS             

            Peak gust 51 kts. 

0555 PM     Tstm Wnd Dmg     1 NNW Elgin             44.15N 92.26W
05/21/2024                   Wabasha            MN   Public           

            One pine tree branch down. 

0555 PM     Tstm Wnd Gst     Marble Rock             42.97N 92.87W
05/21/2024  E60 MPH          Floyd              IA   Fire Dept/Rescue 

            Damage reported in town. 

0555 PM     Tstm Wnd Gst     Eyota                   43.99N 92.23W
05/21/2024  E60 MPH          Olmsted            MN   Trained Spotter  

            Small trees down and debris blowing through 
            fields. 

0605 PM     Tstm Wnd Dmg     Lewiston                43.99N 91.87W
05/21/2024                   Winona             MN   Emergency Mngr   

            Trees down. 

0605 PM     Tstm Wnd Gst     Saint Charles           43.97N 92.07W
05/21/2024  E54 MPH          Winona             MN   Emergency Mngr   

            Tree damage reported. 

0608 PM     Tstm Wnd Dmg     Lewiston                43.98N 91.87W
05/21/2024                   Winona             MN   Public           

            Several large trees down along South 
            Freemont Street. 

0611 PM     Tstm Wnd Dmg     3 N Kellogg             44.34N 92.00W
05/21/2024                   Wabasha            MN   Public           

            Large pine tree snapped on County Road 24. 

0611 PM     Tstm Wnd Dmg     1 WSW Rollingstone      44.10N 91.83W
05/21/2024                   Winona             MN   Emergency Mngr   

            Barn demolished and damage to another 
            building. Possible tornado. 

0614 PM     Hail             Platteville             42.74N 90.48W
05/21/2024  E1.50 Inch       Grant              WI   Broadcast Media  

             

0615 PM     Tstm Wnd Dmg     3 ENE Cochrane          44.25N 91.79W
05/21/2024                   Buffalo            WI   Emergency Mngr   

            Main barn and heifer barn of a farmstead 
            destroyed. Trees snapped. Possible tornado 
            damage. 

0615 PM     Hail             Livingston              42.90N 90.43W
05/21/2024  M0.88 Inch       Grant              WI   Emergency Mngr   

             

0618 PM     Hail             1 NW Platteville        42.74N 90.49W
05/21/2024  M1.00 Inch       Grant              WI   Public           

             

0619 PM     Tstm Wnd Dmg     Winona                  44.05N 91.66W
05/21/2024                   Winona             MN   Public           

            Several trees and large limbs down within 
            the city. 

0620 PM     Tstm Wnd Dmg     1 SE Charles City       43.06N 92.67W
05/21/2024                   Floyd              IA   Public           

            Report from mPING: 3-inch tree limbs broken; 
            Power poles broken. 

0621 PM     Tstm Wnd Dmg     Waumandee               44.30N 91.70W
05/21/2024                   Buffalo            WI   Law Enforcement  

            Barns and trees blown down. 

0622 PM     Tstm Wnd Dmg     Houston                 43.76N 91.57W
05/21/2024                   Houston            MN   Public           

            Trees down in town. 

0623 PM     Tstm Wnd Gst     2 S Oelwein             42.64N 91.91W
05/21/2024  E70 MPH          Fayette            IA   Emergency Mngr   

             

0628 PM     Tstm Wnd Dmg     1 E Charles City        43.07N 92.66W
05/21/2024                   Floyd              IA   Public           

            Report from mPING: 3-inch tree limbs broken; 
            Power poles broken. 

0629 PM     Tstm Wnd Dmg     2 SE Winona             44.03N 91.63W
05/21/2024                   Winona             MN   Public           

             

0630 PM     Tstm Wnd Dmg     2 SE Goodview           44.04N 91.69W
05/21/2024                   Winona             MN   Public           

             

0630 PM     Tstm Wnd Dmg     Trempealeau             44.01N 91.44W
05/21/2024                   Trempealeau        WI   Public           

            Large tree snapped blocking most of South 
            Street. 

0630 PM     Tstm Wnd Dmg     Spring Grove            43.56N 91.64W
05/21/2024                   Houston            MN   Law Enforcement  

            Power lines down. 

0630 PM     Tstm Wnd Dmg     1 E Charles City        43.07N 92.66W
05/21/2024                   Floyd              IA   Public           

            Report from mPING: 3-inch tree limbs broken; 
            Power poles broken. 

0633 PM     Tstm Wnd Dmg     Elgin                   44.13N 92.26W
05/21/2024                   Wabasha            MN   Public           

             

0636 PM     Hail             1 NW Platteville        42.74N 90.49W
05/21/2024  E1.00 Inch       Grant              WI   Public           

            Report from mPING: Quarter (1.00 in.). 

0638 PM     Tstm Wnd Dmg     Fayette                 42.84N 91.80W
05/21/2024                   Fayette            IA   Amateur Radio    

            50 mph wind gusts knocked down trees near 
            town. 

0640 PM     Tstm Wnd Dmg     Strum                   44.55N 91.39W
05/21/2024                   Trempealeau        WI   Emergency Mngr   

            Tree toppled on house. 

0641 PM     Tstm Wnd Dmg     Elgin                   44.13N 92.26W
05/21/2024                   Wabasha            MN   Public           

             

0641 PM     Tstm Wnd Dmg     4 NE New Amsterdam      44.03N 91.27W
05/21/2024                   La Crosse          WI   NWS Employee     

            A few 3 to 4 inch diameter branches down. 

0642 PM     Tstm Wnd Gst     1 NNW Onalaska          43.90N 91.23W
05/21/2024  M59 MPH          La Crosse          WI   Trained Spotter  

             

0642 PM     Tstm Wnd Dmg     1 N La Crosse           43.84N 91.23W
05/21/2024                   La Crosse          WI   Public           

            Large tree down over road in northside of La 
            Crosse. 

0642 PM     Tstm Wnd Dmg     Onalaska                43.89N 91.22W
05/21/2024                   La Crosse          WI   Public           

            Tree down on Wells Street. 

0642 PM     Tstm Wnd Gst     Stoddard                43.66N 91.22W
05/21/2024  M49 MPH          Vernon             WI   Public           

             

0642 PM     Tstm Wnd Dmg     West Union              42.96N 91.81W
05/21/2024                   Fayette            IA   Emergency Mngr   

            Trees and powerlines down, including a tree 
            down on a house. Also trees and powerlines 
            down in Elgin. 

0644 PM     Tstm Wnd Dmg     Genoa                   43.57N 91.23W
05/21/2024                   Vernon             WI   Emergency Mngr   

            Power lines down Highways 56 and 35. 

0645 PM     Tstm Wnd Dmg     2 S La Crosse           43.80N 91.24W
05/21/2024                   La Crosse          WI   NWS Employee     

            Several branches down, damaging some cars. 

0647 PM     Tstm Wnd Dmg     West Salem              43.91N 91.09W
05/21/2024                   La Crosse          WI   Trained Spotter  

            Tree damage near Highway 16. 

0647 PM     Tstm Wnd Gst     1 NNE French Island     43.87N 91.25W
05/21/2024  M63 MPH          La Crosse          WI   ASOS             

            55 kts. 

0648 PM     Tstm Wnd Gst     Stoddard                43.66N 91.22W
05/21/2024  M46 MPH          Vernon             WI   Fire Dept/Rescue 

             

0649 PM     Tstm Wnd Dmg     1 N West Salem          43.91N 91.08W
05/21/2024                   La Crosse          WI   Public           

            One small tree snapped. 

0651 PM     Tstm Wnd Dmg     2 N Onalaska            43.92N 91.21W
05/21/2024                   La Crosse          WI   Public           

            Report from mPING: 1-inch tree limbs broken; 
            Shingles blown off. 

0654 PM     Tstm Wnd Gst     1 N Hazel Green         42.54N 90.44W
05/21/2024  M75 MPH          Grant              WI   Fire Dept/Rescue 

             

0654 PM     Tstm Wnd Dmg     1 E Douglas             44.11N 92.56W
05/21/2024                   Olmsted            MN   Public           

            Report from mPING: 3-inch tree limbs broken; 
            Power poles broken. 

0659 PM     Tstm Wnd Dmg     4 E Douglas             44.11N 92.49W
05/21/2024                   Olmsted            MN   Public           

            Report from mPING: Trees uprooted or 
            snapped; Roof blown off. 

0701 PM     Tstm Wnd Dmg     Cataract                44.09N 90.84W
05/21/2024                   Monroe             WI   Public           

            Tree damage. 

0702 PM     Tstm Wnd Gst     Cuba City               42.60N 90.43W
05/21/2024  E50 MPH          Grant              WI   Law Enforcement  

             

0702 PM     Tstm Wnd Dmg     2 W Winona              44.04N 91.69W
05/21/2024                   Winona             MN   Public           

            Report from mPING: Trees uprooted or 
            snapped; Roof blown off. 

0703 PM     Tstm Wnd Dmg     Sparta                  43.94N 90.81W
05/21/2024                   Monroe             WI   Emergency Mngr   

            Trees and power lines down. 

0705 PM     Tstm Wnd Dmg     Hillsboro               43.65N 90.34W
05/21/2024                   Vernon             WI   Emergency Mngr   

            Trees down on home. 

0706 PM     Tstm Wnd Dmg     1 NW Retreat            43.46N 91.09W
05/21/2024                   Vernon             WI   Public           

            Report from mPING: 1-inch tree limbs broken; 
            Shingles blown off. 

0710 PM     Tstm Wnd Dmg     5 WNW Sidney            44.58N 90.73W
05/21/2024                   Clark              WI   Emergency Mngr   

            Power poles and lines down along Highway 10. 

0719 PM     Tstm Wnd Gst     Tomah                   43.98N 90.50W
05/21/2024  E60 MPH          Monroe             WI   Emergency Mngr   

             

0722 PM     Tstm Wnd Gst     Elkader                 42.86N 91.40W
05/21/2024  E50 MPH          Clayton            IA   Emergency Mngr   

             

0725 PM     Tstm Wnd Gst     Greenwood               44.77N 90.60W
05/21/2024  M56 MPH          Clark              WI   Mesonet          

            Wisconet reading at 3 meter height. 

0725 PM     Tstm Wnd Dmg     2 NW Tomah              44.01N 90.52W
05/21/2024                   Monroe             WI   Public           

            Report from mPING: 3-inch tree limbs broken; 
            Power poles broken. 

0732 PM     Tstm Wnd Gst     6 N Chili               44.71N 90.34W
05/21/2024  E60 MPH          Clark              WI   Trained Spotter  

            Trained spotter estimates 60 mph wind gust. 

0737 PM     Tstm Wnd Gst     1 NW Stewartville       43.87N 92.49W
05/21/2024  M10 MPH          Olmsted            MN   Public           

             

0739 PM     Tstm Wnd Gst     4 WSW Colby             44.89N 90.40W
05/21/2024  E53 MPH          Clark              WI   Public           

             

0742 PM     Tstm Wnd Gst     2 N Dorchester          45.04N 90.34W
05/21/2024  M50 MPH          Taylor             WI   Broadcast Media  

             

0744 PM     Hail             2 SSE Patch Grove       42.91N 90.96W
05/21/2024  M0.70 Inch       Grant              WI   Public           

             

0745 PM     Tstm Wnd Dmg     1 S Prairie Du Chien    43.03N 91.14W
05/21/2024                   Crawford           WI   Public           

            Report from mPING: 3-inch tree limbs broken; 
            Power poles broken. 

0747 PM     Tstm Wnd Dmg     1 SW Thorp              44.94N 90.81W
05/21/2024                   Clark              WI   Public           

            Report from mPING: 3-inch tree limbs broken; 
            Power poles broken. 

0758 PM     Tstm Wnd Dmg     4 SSW Lancaster         42.80N 90.74W
05/21/2024                   Grant              WI   Emergency Mngr   

            Lots of tree and power line damage including 
            sheds. 

0800 PM     Tstm Wnd Gst     Lancaster               42.85N 90.71W
05/21/2024  M54 MPH          Grant              WI   Mesonet          

            Wisconet station gust at 3 meter height. 

0801 PM     Tstm Wnd Dmg     Potosi                  42.69N 90.71W
05/21/2024                   Grant              WI   Emergency Mngr   

            Trees down on houses. 

0803 PM     Hail             3 NW Burton             42.75N 90.84W
05/21/2024  E0.75 Inch       Grant              WI   Public           

            Report from mPING: Dime (0.75 in.). 

0804 PM     Tstm Wnd Dmg     3 NW Burton             42.75N 90.84W
05/21/2024                   Grant              WI   Public           

            Report from mPING: 1-inch tree limbs broken; 
            Shingles blown off. 

Photos

Storm and Wind Damage

Photo Photo Photo Photo
Storm approaching Viroqua, WI
(Vernon Co. Emerg.Mgmt)
Damage in Unity, WI
(NWS Survey)
Tree damage near Rockland, WI
(Carol Maulsby)
Tree damage at Middle Ridge, WI
(Lauren Olson)
Photo
Tree damage in north La Crosse
(Becky Snider)

Services

Graphics

Radar Image Radar Image Radar Image
Planning / Timing Graphic Storm Timing Graphic Preparation Graphic

Watches and Warnings

Radar Image Radar Image Radar Image Radar Image
Tornado Watch #277 Tornado Watches Expanded Tornado Watch #281 Tornado Warning for Winona Co. example

SPC Outlooks

Radar Image Radar Image Radar Image Radar Image
Day 1 Outlook Day 1 Tornado Probabilities Day 1 Wind Probabilities Day 1 Hail Probabilities

Radar Image Radar Image Radar Image Radar Image
Day 1 Outlook Day 1 Tornado Probabilities Day 1 Wind Probabilities Day 1 Hail Probabilities

Radar Image Radar Image Radar Image Radar Image
Day 2 Outlook
issued May 20
Day 3 Outlook
issued May 19
Day 4 Outlook
issued May 18
Day 5 Outlook
issued May 17

 
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