Destructive Tornado Damages Northeast Wisconsin Along with Hail and High Winds
A destructive EF-3 tornado ripped through parts of Menasha, Neenah, Fox Crossing, and Appleton in Wisconsin on Monday afternoon, damaging homes, uprooting trees, and leaving thousands without power.
The National Weather Service (NWS) confirmed that the tornado touched down south of Appleton, Wisconsin, in Outagamie County, southwest of Green Bay. It then tracked through parts of Winnebago County, including the cities of Neenah and Oshkosh, eventually dissipating over Lake Winnebago.
According to the NWS, assessments showed at least EF-3 tornado damage. Homes in Appleton have been destroyed with roofs ripped off, along with trees being uprooted and split.
The storms also produced widespread wind damage across parts of northern Wisconsin. Several large hail reports were received, including hail over 2 inches in diameter and a report of hail larger than 4 inches in Shawano County.
A power outage was affecting more than 400,000 utility customers in Wisconsin and Illinois on Monday afternoon, according to PowerOutage.us. In Menasha, officials said much of the city was without power, and restoration could take days because of the extent of damage and downed lines.
Actionable Analytics on EigenPrism
Post-Event
Severe Thunderstorm Datasets
Tornado
All EigenPrism users can assess the impact of the tornado that occurred on July 27, 2026, using the following footprints:
- EF3 Tornado Track in Appleton, Wisconsin as of July 27, 2026 from NWS
- 24-Hr Rotational Tornado Tracks as of July 28, 2026 from NSSL
Hail
All EigenPrism users can assess the impact of the hail that occurred on July 27, 2026, using the following footprint:
Canopy Weather
Tornado
Subscribers of Canopy Weather in EigenPrism can assess the impact of the tornado using the following event footprints from July 27, 2026.
Hail
Subscribers of Canopy Weather in EigenPrism can assess the impact of the Hail using the following event footprints from July 27, 2026.
Wind
Subscribers of Canopy Weather in EigenPrism can assess the impact of the wind using the following event footprints from July 27, 2026.
Alerts
Users who have alerts set on their exposures for the relevant event sets like those from NWS and Adiabat will receive alerts (if the event footprints impact these exposures).
To learn more about how to set an alert on a specific event set, check out this help center article.
Feel free to contact us at Prism.Support@eigenrisk.com or reach out directly to your Customer Success Manager with any questions or concerns. Our team is here to assist you with setting alerts, understanding report templates, and maximizing the actionable insights available through EigenPrism®.
Not an EigenPrism User? Here’s a Quick Way to Check ZIP-Level Impact
For underwriters, brokers, and portfolio managers who need fast visibility into impacted ZIP codes, we’ve built a tool called ZIP Response on our website. It’s a free, no-login tool that highlights the top ZIP codes that are most impacted during active events, such as hurricanes, floods, wildfires, and severe storms.
You can request the complete ZIP list by simply filling out a short form and get it delivered straight to your inbox.
If you’d like to explore the impacted ZIP codes for this event, visit ZIP Response.
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