Overview
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Severe thunderstorms rapidly developed on the afternoon of April 13, 2026 in far southeast SD, southwest MN and northwest IA. Isolated storms quickly developed by mid-afternoon, expanding in coverage through the evening as they tracked eastward. While the vast majority of severe weather reports were in the form of large hail, two tornadoes were reported. These weak tornadoes located near Webb, IA and Sanborn, IA impacted mostly farm fields. One residence near the path of the Webb, IA tornado did sustain minor damage. |
 3 pm to 10 pm radar loop on April 13, 2026 |
Tornadoes
Select a tornado from the table to zoom into the track and view more information. The default table view is limited to 8 tracks, but can be scrolled by a mouse wheel or dynamically expanded. Additionally, the table can fill the entire window by clicking the small circular expanding arrow icon at the very top right of the table and returned to its original size by clicking the button again. The side information panel that opens over the map can be closed using the "X" on the upper right corner of the pop-up. Zoom into the map and click damage points to see detailed information and pictures from the surveys.
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NOTE: times shown below are local to your device's time zone. |
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 |
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| Tornadoes that fail to impact any ratable damage indicators on the EF-Scale are rated EF-Unknown (EF-U) | |||||
Storm Reports
Preliminary Local Storm Report...Summary
National Weather Service Sioux Falls SD
142 PM CDT Tue Apr 14 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0332 PM Hail Tripp 43.23N 97.97W
04/13/2026 E0.75 Inch Hutchinson SD Public
Report from mPING: Dime (0.75 in.).
0400 PM Hail 4 NW Olivet 43.29N 97.73W
04/13/2026 E1.00 Inch Hutchinson SD Public
0416 PM Hail 5 NNE Olivet 43.31N 97.63W
04/13/2026 M1.00 Inch Hutchinson SD Public
0440 PM Hail 3 S Freeman 43.31N 97.44W
04/13/2026 E1.25 Inch Hutchinson SD Public
0504 PM Hail 5 E Freeman 43.36N 97.34W
04/13/2026 E0.75 Inch Turner SD Trained Spotter
0523 PM Hail Moville 42.49N 96.07W
04/13/2026 E0.50 Inch Woodbury IA Public
0537 PM Hail 7 S Remsen 42.71N 95.98W
04/13/2026 E1.25 Inch Plymouth IA Public
0542 PM Hail 5 SSW Remsen 42.75N 96.80W
04/13/2026 E2.75 Inch Plymouth IA Public
0551 PM Hail Ashton 43.31N 95.79W
04/13/2026 E0.50 Inch Osceola IA Public
Report from mPING: Half-inch (0.50 in.).
0559 PM Hail 2 NW Dundee 43.87N 95.50W
04/13/2026 M1.00 Inch Murray MN Trained Spotter
0600 PM Hail 1 NNW Dundee 43.86N 95.48W
04/13/2026 M1.50 Inch Murray MN Trained Spotter
0603 PM Hail 5 W Sioux Falls 43.53N 96.82W
04/13/2026 E0.50 Inch Minnehaha SD Public
0608 PM Hail 4 SE Granville 42.94N 95.82W
04/13/2026 M1.75 Inch OBrien IA Trained Spotter
0610 PM Hail 4 S Remsen 42.75N 95.96W
04/13/2026 E1.75 Inch Plymouth IA Law Enforcement
0612 PM Hail 4 N Tea 43.50N 96.82W
04/13/2026 E0.50 Inch Lincoln SD Public
Report from mPING: Half-inch (0.50 in.).
0613 PM Hail 5 W Sioux Falls 43.52N 96.81W
04/13/2026 M1.00 Inch Minnehaha SD Public
0614 PM Hail Tea 43.45N 96.83W
04/13/2026 E1.50 Inch Lincoln SD Public
0615 PM Hail 5 NW Windom 43.93N 95.18W
04/13/2026 E2.00 Inch Cottonwood MN Public
0618 PM Hail 4 WSW Sioux Falls 43.52N 96.80W
04/13/2026 M1.50 Inch Minnehaha SD NWS Employee
0620 PM Hail 3 ENE Tea 43.47N 96.78W
04/13/2026 M1.00 Inch Lincoln SD NWS Employee
Penny to quarter size hail.
0620 PM Hail 2 NW Windom 43.89N 95.16W
04/13/2026 M2.00 Inch Cottonwood MN Public
Social media report with pictures and ruler.
0621 PM Hail 4 NE Tea 43.47N 96.78W
04/13/2026 M1.25 Inch Lincoln SD Public
0621 PM Hail 4 N Windom 43.93N 95.12W
04/13/2026 M2.00 Inch Cottonwood MN Public
0622 PM Hail 4 NE Tea 43.48N 96.77W
04/13/2026 M1.00 Inch Lincoln SD Public
0622 PM Hail 3 NE Tea 43.48N 96.79W
04/13/2026 E1.00 Inch Lincoln SD Trained Spotter
0622 PM Hail Delft 43.99N 95.09W
04/13/2026 E1.00 Inch Cottonwood MN Public
0625 PM Hail 2 S Sioux Falls 43.51N 96.72W
04/13/2026 M0.75 Inch Minnehaha SD Public
0625 PM Hail 4 NNW Harrisburg 43.48N 96.73W
04/13/2026 M1.00 Inch Lincoln SD NWS Employee
0625 PM Hail 7 ENE Melvin 43.32N 95.48W
04/13/2026 E1.00 Inch Osceola IA Trained Spotter
Spotter report of quarter inch hail with
pictures.
0628 PM Hail Primghar 43.09N 95.63W
04/13/2026 M1.00 Inch OBrien IA Trained Spotter
0629 PM Hail 3 SE Sioux Falls 43.52N 96.68W
04/13/2026 M0.75 Inch Minnehaha SD Public
0630 PM Tornado 2 NE Archer 43.14N 95.71W
4/13/2026 OBrien IA Emergency Mngr
0630 PM Hail 4 E Sioux Falls 43.51N 96.65W
04/13/2026 M0.75 Inch Minnehaha SD Public
0630 PM Hail 4 SE Sioux Falls 43.50N 96.67W
04/13/2026 M1.00 Inch Lincoln SD NWS Employee
0630 PM Hail 1 S Harris 43.43N 95.43W
04/13/2026 E1.75 Inch Osceola IA Public
Social media report with picture. Time
estimated by radar.
0630 PM Hail 8 SE Ocheyedan 43.33N 95.45W
04/13/2026 E1.00 Inch Osceola IA Public
Social media report with a coin for
reference. Time estimated by radar.
0631 PM Hail 3 SE Delft 43.95N 95.06W
04/13/2026 E1.50 Inch Cottonwood MN Public
0632 PM Hail 3 E Sioux Falls 43.52N 96.67W
04/13/2026 E0.75 Inch Minnehaha SD Public
0632 PM Hail 5 S Lake Park 43.37N 95.33W
04/13/2026 M0.75 Inch Dickinson IA Public
0634 PM Hail 3 NNE Archer 43.16N 95.72W
04/13/2026 E1.75 Inch OBrien IA Public
Social media report with picture of
estimated hail size.
0640 PM Hail 2 W Mountain Lake 43.94N 94.96W
04/13/2026 M2.00 Inch Cottonwood MN Public
0640 PM Hail 3 S Sanborn 43.14N 95.66W
04/13/2026 E1.00 Inch OBrien IA Public
Report from mPING: Quarter (1.00 in.).
0640 PM Hail Sanborn 43.18N 95.66W
04/13/2026 E1.50 Inch OBrien IA Public
Report from mPING: Ping Pong Ball (1.50
in.).
0641 PM Hail Sanborn 43.18N 95.66W
04/13/2026 E1.25 Inch OBrien IA Public
0644 PM Hail Sanborn 43.18N 95.66W
04/13/2026 E1.50 Inch OBrien IA Public
0645 PM Hail 1 S Windom 43.86N 95.12W
04/13/2026 E1.25 Inch Cottonwood MN Public
0646 PM Hail 1 S Mountain Lake 43.93N 94.93W
04/13/2026 M1.75 Inch Cottonwood MN Trained Spotter
Spotter report of golf ball sized hail.
0650 PM Hail Windom 43.87N 95.12W
04/13/2026 E1.25 Inch Cottonwood MN Trained Spotter
0653 PM Hail Melvin 43.29N 95.61W
04/13/2026 M1.00 Inch Osceola IA Emergency Mngr
0654 PM Hail 1 W Luverne 43.66N 96.22W
04/13/2026 E1.50 Inch Rock MN Trained Spotter
Hail for about 5-10 minutes up to the size
of ping pong balls, most of them smaller.
Moderate rain followed hail, and everything
was done by about 715 pm.
0713 PM Hail 4 NE Magnolia 43.68N 96.01W
04/13/2026 E0.75 Inch Nobles MN Trained Spotter
0720 PM Hail 4 ESE Arnolds Park 43.35N 95.05W
04/13/2026 M0.75 Inch Dickinson IA Trained Spotter
0724 PM Hail 2 NW Peterson 42.94N 95.36W
04/13/2026 E1.00 Inch Clay IA Trained Spotter
Breif heavy rain and hail up to the size of
quarters.
0729 PM Hail 6 NNE Rushmore 43.69N 95.74W
04/13/2026 E1.50 Inch Nobles MN Public
0746 PM Hail 7 WNW Brewster 43.75N 95.59W
04/13/2026 E1.00 Inch Nobles MN Public
0750 PM Tstm Wnd Dmg 1 NE Webb 42.96N 94.99W
04/13/2026 Clay IA Emergency Mngr
Measured wind gust to 72 mph on a personal
weather station due to rear flank downdraft
to south of tornado path. Damage to trees,
shingles and siding. Some wind driven hail
knocked out windows on camper and damaged
siding.
0750 PM Tornado 2 NNE Webb 42.97N 95.00W
04/13/2026 Clay IA Emergency Mngr
Photo of tornado from EM.
0752 PM Hail Webb 42.95N 95.01W
04/13/2026 M1.00 Inch Clay IA Emergency Mngr
0758 PM Hail 5 NE Webb 42.99N 94.94W
04/13/2026 E1.50 Inch Clay IA Trained Spotter
0818 PM Hail 3 SSW Okabena 43.69N 95.33W
04/13/2026 E0.88 Inch Jackson MN Trained Spotter
10 minutes of hail up to the size
of nickles covered two thirds of the yard.
0820 PM Hail 5 S Okabena 43.67N 95.33W
04/13/2026 M1.25 Inch Jackson MN Broadcast Media
0821 PM Hail 5 S Okabena 43.67N 95.32W
04/13/2026 E1.00 Inch Jackson MN Public
0829 PM Hail 2 SW Lakefield 43.66N 95.20W
04/13/2026 E2.00 Inch Jackson MN Trained Spotter
Most hail stones were penny to quarter
sized, but some as big as hen eggs.
0832 PM Hail Lakefield 43.68N 95.17W
04/13/2026 M1.00 Inch Jackson MN Trained Spotter
Lots of dime to quarter size hail.
0849 PM Hail 2 N Jackson 43.66N 94.99W
04/13/2026 E1.00 Inch Jackson MN Trained Spotter
0850 PM Hail 1 N Jackson 43.64N 95.00W
04/13/2026 E1.00 Inch Jackson MN Public
Photos & Video
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| Webb, Iowa Lifecycle Tornado Video Credit goes to Andrew Griffiths |
Webb IA Tornado Credit goes to Lori Hazelett |
Webb IA Tornado Credit goes to Tim Sylvester |
Caption (source) |
Radar
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| 3 pm to 10 pm radar loop on April 13, 2026 | Webb Iowa Supercell on Radar | Caption | Caption |
Wind & Hail
Hail
Scattered large hail was reported across the region, with hail up to 2" in diameter reported.
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| Ping Pong Ball Size Hail near Dundee, Minnesota. Credit goes to Margie Salentiny |
Ping Pong Ball Hail between Webb and Silver Lake |
Golf Ball Hail in Granville, IA Credit goes to Keri Oostra |
2" Hail 5 miles northwest of Windom Credit goes to Jacob Schaffer |
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