Severe Thunderstorm Warning: Winona, MN, MN — Storm Damage Roof Inspection Guide

A Severe Thunderstorm Warning has been issued for Winona, MN, Minnesota by the National Weather Service. Homeowners in the affected area should assess their roofs for hail damage, wind damage, or other storm-related issues as soon as it is safe to do so.

Storm Details

• Event: Severe Thunderstorm Warning
• Severity: Severe
• Effective: Tuesday, August 18, 2026
• Expires: Aug 18, 2026, 8:15 PM
• Area: Winona, MN, Minnesota

Severe Thunderstorm Warning issued August 18 at 2:36PM CDT until August 18 at 3:15PM CDT by NWS La Crosse WI

Official NWS Statement

SVRARX

The National Weather Service in La Crosse has issued a

* Severe Thunderstorm Warning for...
Eastern Winona County in southeastern Minnesota...
Southeastern Buffalo County in west central Wisconsin...
Northern La Crosse County in west central Wisconsin...
Southern Trempealeau County in west central Wisconsin...

* Until 315 PM CDT.

* At 236 PM CDT, severe thunderstorms were located along a line
extending from near Galesville to Stockton, moving southeast at 25
mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar …

Safety Instructions

For your protection move to an interior room on the lowest floor of a
building.

Roof Damage After a Storm — What to Look For

• Dents or bruising on shingles, gutters, and flashing
• Missing, cracked, or lifted shingles
• Granule loss (dark streaks in downspouts or gutters)
• Dented or damaged skylights, vents, and AC units
• Interior water stains on ceilings or walls

Even minor hail damage can compromise your roof's waterproofing. A licensed roofer can identify hidden damage before it leads to leaks or mold.

Will Your Insurance Cover Storm Roof Damage?

Most standard homeowners insurance policies cover roof damage from hail and wind storms. You typically have 1–2 years to file a claim after the storm date (check your policy). A licensed roofing contractor can provide a free inspection and help document the damage for your claim.

For homeowners in Winona, MN: StormLead connects you with licensed, local roofing contractors who specialize in storm damage repair. Request a free inspection at stormlead.co →