Overview
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Clusters of thunderstorms, including a few supercells, moved southeastward across northern into eastern Wisconsin during the morning and early afternoon within an extremely warm and unstable environment. An EF-3 tornado rapidly developed around Noon in the Appleton area, and moved south through Fox Crossing and Menasha with estimated peak winds around 140 mph before reaching Lake Winnebago. Damage occurred to many homes and businesses, in addition to significant tree damage. In addition, wind damage occurred across northern Wisconsin, including parts of Vilas, Oneida, and Forest Counties. Downed trees and power lines were reported in several communities, including in the Eagle River, Hiles and Three Lakes areas. Several reports of hailstones in excess of 2 inches were received, including a report of hail over 4 inches in diameter in Shawano County near Gresham. |
.gif) Radar loop from 7:45 AM through 2 PM, July 27, 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
Storm reports ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 1235 AM Hail 1 N New London 44.40N 88.75W 07/27/2026 M0.50 Inch Waupaca WI Public Report from mPING: Half-inch (0.50 in.). 0845 AM Tstm Wnd Dmg 1 NW Star Lake 46.04N 89.47W 07/27/2026 Vilas WI Public Trees and power lines down. 0850 AM Tstm Wnd Dmg 1 NNW Conover 46.06N 89.26W 07/27/2026 Vilas WI Public Trees and power lines down.
0859 AM Tstm Wnd Dmg 2 NNE Eagle River 45.93N 89.23W
07/27/2026 Vilas WI Emergency Mngr
Trees down and power poles snapped off along
Silver Lake Road. Time estimated by radar.
0900 AM Hail 3 SW Clearwater Lake 45.81N 89.23W
07/27/2026 M1.75 Inch Oneida WI Law Enforcement
0900 AM Tstm Wnd Dmg 1 ESE Three Lakes 45.79N 89.15W
07/27/2026 Oneida WI Law Enforcement
Numerous trees and power lines down.
0902 AM Tstm Wnd Dmg 3 ESE Eagle River 45.89N 89.19W
07/27/2026 Vilas WI Emergency Mngr
Trees down and uprooted along Meta Lake Road
and Circle Drive. Power lines also down in
these areas. Time estimated by radar.
0904 AM Hail 4 NE Eagle River 45.94N 89.17W
07/27/2026 E1.50 Inch Vilas WI Public
Report from mPING: Ping Pong Ball (1.50
in.).
0915 AM Tstm Wnd Dmg Hiles 45.70N 88.98W
07/27/2026 Forest WI Law Enforcement
Trees down.
0915 AM Hail 3 SSE Three Lakes 45.75N 89.14W
07/27/2026 M1.50 Inch Oneida WI Public
Report and photo forwarded via broadcast
media.
0933 AM Hail Crandon 45.57N 88.90W
07/27/2026 E2.00 Inch Forest WI Public
Relayed via broadcast media.
0938 AM Hail 3 NE Brussels 44.77N 87.59W
07/27/2026 M1.00 Inch Door WI Public
0939 AM Hail 4 SE Crandon 45.52N 88.85W
07/27/2026 E1.00 Inch Forest WI Public
Report from mPING: Quarter (1.00 in.).
0945 AM Hail 2 ESE Sturgeon Bay 44.82N 87.34W
07/27/2026 E3.00 Inch Door WI Public
Relayed via WLUK TV. Location estimated.
0948 AM Hail 4 S Valmy 44.84N 87.28W
07/27/2026 M2.00 Inch Door WI Public
Via social media.
0950 AM Hail 3 N Pickerel 45.41N 88.91W
07/27/2026 E1.75 Inch Forest WI Public
Estimated via social media.
1011 AM Hail 1 N Algoma 44.62N 87.44W
07/27/2026 M1.00 Inch Kewaunee WI Public
1011 AM Hail Algoma 44.61N 87.44W
07/27/2026 M3.00 Inch Kewaunee WI Public
Corrects time of previous hail report from
Algoma.
1020 AM Tstm Wnd Dmg Athelstane 45.43N 88.09W
07/27/2026 Marinette WI Law Enforcement
trees and power lines down.
1025 AM Hail 1 ESE Lyndhurst 44.82N 88.78W
07/27/2026 M2.75 Inch Shawano WI Public
Report forwarded via Amateur Radio.
1028 AM Hail 2 NW Gresham 44.87N 88.82W
07/27/2026 E4.50 Inch Shawano WI Public
Social media image of grapefruit size hail
northwest of Gresham. Time estimated from
radar.
1029 AM Hail Gresham 44.85N 88.79W
07/27/2026 M1.00 Inch Shawano WI Trained Spotter
1040 AM Hail 1 ENE Shawano 44.78N 88.57W
07/27/2026 M1.25 Inch Shawano WI Trained Spotter
1040 AM Tstm Wnd Dmg 1 NNW Wausaukee 45.38N 87.95W
07/27/2026 Marinette WI Law Enforcement
Trees and power lines down.
1050 AM Hail 2 NNE Belle Plaine 44.74N 88.65W
07/27/2026 M3.00 Inch Shawano WI Public
Photo received on social media.
1156 AM Tornado 2 WNW Appleton 44.27N 88.44W
07/27/2026 Outagamie WI NWS Storm Survey
A tornado, preliminarily EF-3 with estimated
winds up to 140 mph, developed 2 miles WNW
of Appleton and tracked southward into Fox
Crossing and Menasha with damage to homes,
businesses, and trees. The tornado
dissipated over Lake Winnebago around 12:22
PM CDT.
1205 PM Hail 1 NE Darboy 44.24N 88.36W
07/27/2026 E1.00 Inch Calumet WI Public
Report from former NWS meteorologist.
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Photos & Video
Storm Damage: Appleton-Menasha Tornado
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| Structure damage from tornado (NWS Storm Survey) |
Structure damage from tornado (NWS Storm Survey) |
Structure damage from tornado (NWS Storm Survey) |
Structure damage from tornado (NWS Storm Survey) |
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| Structure damage from tornado (NWS Storm Survey) |
Structure damage from tornado (NWS Storm Survey) |
Structure damage from tornado (NWS Storm Survey) |
Structure damage from tornado (NWS Storm Survey) |
Radar
Header
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| 12:02 PM reflectivity (top left), storm relative velocity (top right), correlation coefficient (bottom left) and differential reflectivity (bottom right) | Vertical cross section of correlation coefficient near Menasha, WI at 12:08 PM indicating lofted debris | Caption | Caption |
Environment
Synoptic environment
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| Green Bay radiosonde from 7 AM 7/27 | Figure 2: Caption | Figure 3: Caption |
Near-storm environment
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| Loop of mixed layer CAPE (9 AM to 2 PM 7/27) | Loop of effective shear (9 AM to 2 PM 7/27) | Loop of Significant Tornado Parameter (9 AM to 2 PM 7/27) |
Additional data
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| Tornado Warning | Tornado and Severe Thunderstorm Warnings | Mesoscale Discussion from the Storm Prediction Center at 12:16 PM highlighting near term tornado risk |
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