Storm Summary for May 21, 2024 - Tornadoes and Heavy Rainfall

Overview - This information is still being updated

Thunderstorms moved northward from Iowa into southern Minnesota in the mid- afternoon on May 21st. One tornado touched down briefly near Fairmont in Martin County. Another potential tornado touched down near Mapleton in Blue Earth County. A brief tornado occurred just west of Red Wing as this line continued to the northeast. This thunderstorm complex develop and moved rapidly across southern Minnesota and into Western Wisconsin, where one more tornado touched down to the east of Eau Claire near Augusta and tracked about 10 miles to the north.

Uprooted tree near Augusta, WI

Tornado
Radar
Storm Reports
Rainfall

Tornadoes:

Tornado - Fairmont, MN
Martin County

Date	5/21/2024
Time (Local)	3:48 PM to 3:52 PM
EF Rating	EF-0
Est. Peak Winds	75 MPH
Path Length	2.3 Miles
Max Width	75 Yards
Injuries/Deaths	0/0
Summary: A tornado touched down on Hall Lake and moved northeast. Numerous photos with locations enabled this to be a virtual survey. The photos are unable to be shared on this site. The beginning of the path was estimated based on photos of the tornado over Hall Lake.

Track Map

Track Map Downloadable KMZ File

Tornado - Red Wing, MN
Goodhue County

Date	5/21/2024
Time (Local)	5:41 PM to 5:42 PM
EF Rating	EF-0
Est. Peak Winds	70 MPH
Path Length	0.69 Miles
Max Width	25 Yards
Injuries/Deaths	0/0
Summary: The tornado broke about 12-15 trees in three different groves. Two evergreens were also tipped over. It also carved out a path through some tall grasses.

Track Map

Track Map

Downloadable KMZ File

Tornado - Augusta, WI
Eau Claire County

Date	5/21/2024
Time (Local)	6:56 PM to 7:07 PM
EF Rating	EF-1
Est. Peak Winds	90 mph
Path Length	9.8 miles
Max Width	440 yards
Injuries/Deaths	0/0

Summary:

Track Map

Downloadable KMZ File

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

Radar

Header


Radar loop showing storms moving into Martin County, MN	Radar loop as storms moved through eastern Eau Claire County, WI

Storm Reports

NWUS53 KMPX 231558
LSRMPX

Preliminary Local Storm Report...Summary
National Weather Service Twin Cities/Chanhassen MN
1058 AM CDT Thu May 23 2024

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

0300 PM     Tornado          1 SSW Fairmont          43.63N 94.47W
05/21/2024                   Martin             MN   Public           

            LATE LSR - Social media photo received of 
            potential tornado crossing Hall Lake, just 
            south of Fairmont. Time estimated via radar. 

0356 PM     Tstm Wnd Gst     3 ESE Fairmont          43.63N 94.42W
05/21/2024  M60 MPH          Martin             MN   AWOS             

            AWOS station KFRM Fairmont AP. 

0420 PM     Funnel Cloud     2 W Mapleton            43.93N 93.99W
05/21/2024                   Blue Earth         MN   Public           

            Funnel Cloud photo shared via social media 2 
            miles W of Mapleton. Will need to verify if 
            tornado made contact with the ground. 

0448 PM     Tstm Wnd Dmg     Albert Lea              43.65N 93.37W
05/21/2024                   Freeborn           MN   Emergency Mngr   

            Correcting LSR time. Emergency Manager 
            reported power lines and trees down in 
            Albert Lea. Time estimated via radar. 

0455 PM     Tstm Wnd Gst     2 N Albert Lea          43.68N 93.37W
05/21/2024  M47 MPH          Freeborn           MN   AWOS             

            AWOS station KAEL Albert Lea AP. 

0457 PM     Tstm Wnd Dmg     2 S Faribault           44.27N 93.27W
05/21/2024                   Rice               MN   Public           

            Large tree down blocking roadway 2 miles 
            south of Faribault. Time estimated via 
            radar. 

0500 PM     Tstm Wnd Dmg     Geneva                  43.82N 93.27W
05/21/2024                   Freeborn           MN   Emergency Mngr   

            Emergency Manager reported trees and 
            powerlines down in Geneva. 

0500 PM     Tstm Wnd Dmg     Hollandale              43.76N 93.20W
05/21/2024                   Freeborn           MN   Emergency Mngr   

            Emergency Manager reported trees and power 
            poles snapped one quarter mile east of 
            Hollandale. 

0635 PM     Tstm Wnd Dmg     14 SW Eau Claire        44.65N 91.67W
05/21/2024                   Pepin              WI   Trained Spotter  

            2 to 3 inch branches down along 150ft line 
            of trees. 

0645 PM     Tstm Wnd Dmg     1 WNW Chippewa Falls    44.94N 91.42W
05/21/2024                   Chippewa           WI   Amateur Radio    

            Amateur radio reporting downed tree branches 
            measuring 7 inches in diameter. Time 
            estimated via radar. 

0654 PM     Tstm Wnd Dmg     Albert Lea              43.65N 93.37W
05/21/2024                   Freeborn           MN   Emergency Mngr   

            Emergency Manager reported power lines and 
            trees down in Albert Lea. 

0656 PM     Tornado          Augusta                 44.68N 91.12W
05/21/2024                   Eau Claire         WI   NWS Storm Survey 

            PRELIMINARY INFORMATION: Storm survey 
            results identified an EF1 tornado that 
            touched down near Augusta, and moved north. 
            The path length was about 10 miles, maximum 
            width about 1/4 mile, and peak speeds near 
            90 mph. Time estimated from radar. 

0656 PM     Tstm Wnd Dmg     Augusta                 44.68N 91.12W
05/21/2024                   Eau Claire         WI   Emergency Mngr   

            Emergency Management reported powerlines and 
            trees down in Augusta. Time estimated via 
            radar. 

0656 PM     Tstm Wnd Gst     4 NNE Eau Claire        44.87N 91.47W
05/21/2024  M49 MPH          Chippewa           WI   ASOS             

            ASOS station KEAU Eau Claire AP. 

0708 PM     Tstm Wnd Dmg     9 S Boyd                44.83N 91.02W
05/21/2024                   Eau Claire         WI   Emergency Mngr   

            EM reported that in the Town of Wilson there 
            are multiple trees down in laying various 
            directions. Time estimated by radar. 

0708 PM     Tstm Wnd Dmg     6 SSE Cornell           45.08N 91.12W
05/21/2024                   Chippewa           WI   Trained Spotter  

            Branches and trees down 6 miles SSE of 
            Cornell. Time estimated via radar. 

0710 PM     Tstm Wnd Dmg     4 SE Boyd               44.91N 90.98W
05/21/2024                   Chippewa           WI   Trained Spotter  

            15-20 inch tree down, several 3-4 inch 
            branches down. Time estimated via radar. 

0716 PM     Tstm Wnd Dmg     4 SSE Stanley           44.90N 90.92W
05/21/2024                   Chippewa           WI   Trained Spotter  

            Multiple trees uprooted & large limbs 
            snapped. Time estimated from radar. 


&&

$$

jrb

Rain Reports

NOUS43 KMPX 221518
PNSMPX
MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-230318-

Public Information Statement
National Weather Service Twin Cities/Chanhassen MN
1018 AM CDT Wed May 22 2024

...48 HOUR PRECIPITATION REPORTS...

Location                     Amount    Time/Date       Provider             
Farmington 0.7 N             4.00 in   0725 AM 05/22   COCORAHS             
Balsam Lake 4SE              3.99 in   0700 AM 05/22   COCORAHS             
Northfield                   3.84 in   0950 AM 05/22   CWOP                 
Arden Hills 0.8 SSW          3.60 in   0600 AM 05/22   COCORAHS             
Woodbury 0.3 NNW             3.56 in   0545 AM 05/22   COCORAHS             
Minneapolis Lower St. Anthon 3.51 in   0500 AM 05/22   COOP                 
New Brighton                 3.47 in   0945 AM 05/22   CWOP                 
Dawson 0.6 WNW               3.20 in   0800 AM 05/22   COCORAHS             
Montevideo 8.5 WNW           3.19 in   0600 AM 05/22   COCORAHS             
Maiden Rock 7.7 N            3.13 in   0700 AM 05/22   COCORAHS             
Rosemount 2.7 W              3.07 in   0915 AM 05/22   COCORAHS             
Golden Valley 1.0 NW         2.94 in   0700 AM 05/22   COCORAHS             
Minneapolis 2.9 W            2.93 in   0628 AM 05/22   COCORAHS             
Brooklyn Center 1.3 SE       2.91 in   0700 AM 05/22   COCORAHS             
Little Falls 9.3 WNW         2.90 in   0700 AM 05/22   COCORAHS             
Cannon Falls 7.9 ESE         2.89 in   0700 AM 05/22   COCORAHS             
Clear Lake 5.9 NE            2.86 in   0700 AM 05/22   COCORAHS             
Prior Lake 5.1 SSE           2.85 in   0750 AM 05/22   COCORAHS             
Rosemount                    2.84 in   0800 AM 05/22   COOP                 
Chisago City 1.3 SSE         2.82 in   0700 AM 05/22   COCORAHS             
Chanhassen 1.7 S             2.82 in   0600 AM 05/22   COCORAHS             
St. Croix Falls              2.81 in   0700 AM 05/22   COOP                 
1.3 NW Princeton             2.81 in   0845 AM 05/22   HADS                 
River Falls 1SW              2.79 in   0700 AM 05/22   COCORAHS             
Montgomery 2.1 N             2.79 in   0800 AM 05/22   COCORAHS             
North Mankato 0.5 SE         2.71 in   0700 AM 05/22   COCORAHS             
1.2 W Wanamingo              2.71 in   0700 AM 05/22   HADS                 
Minnetonka 2.0 SW            2.66 in   0700 AM 05/22   COCORAHS             
Edina 1SW                    2.65 in   0700 AM 05/22   COCORAHS             
1 WSW Richfield              2.64 in   0700 AM 05/22   COCORAHS             
Zumbrota 1.6 NNW             2.64 in   0700 AM 05/22   COCORAHS             
HASTINGS                     2.57 in   0950 AM 05/22   CWOP                 
Big Lake 2.4 N               2.56 in   0700 AM 05/22   COCORAHS             
Weyerhaeuser 2.2 W           2.53 in   0734 AM 05/22   COCORAHS             
Mankato 1ESE                 2.53 in   0700 AM 05/22   COCORAHS             
Faribault 1.6 S              2.50 in   0700 AM 05/22   COCORAHS             
Cottage Grove 1.7 NW         2.48 in   0600 AM 05/22   COCORAHS             
Bay City 3.7 NNW             2.41 in   0700 AM 05/22   COCORAHS             
Minneapolis-St. Paul AP      2.34 in   0853 AM 05/22   ASOS                 
Brooklyn Park 2E             2.27 in   0800 AM 05/22   COCORAHS             
New Richmond AP              2.19 in   0935 AM 05/22   AWOS                 
South St. Paul AP            2.19 in   0935 AM 05/22   AWOS                 
St. Paul Dwtn AP             2.11 in   0853 AM 05/22   ASOS                 
Stillwater 7.4 NNE           2.09 in   0800 AM 05/22   COCORAHS             
Menomonie 0.9 NW             2.07 in   0715 AM 05/22   COCORAHS             

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.

$$

Strus

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