Severe weather begins the week with a significant round of storms across the western Great Lakes before activity gradually shifts toward the Mid-Atlantic, Great Plains, and Northeast.

Severe Weather Targets the Great Lakes Before Shifting East

The latest Extreme Weather Insights forecast covers July 27 through August 2 and carries a score of 5/10, indicating another generally average week. While widespread hail is not expected, several localized events could still create meaningful opportunities for roofing and restoration contractors.

Last Week: Nearly 1,000 Wind Reports

Last week’s forecast earned an Extreme Weather Insights Score of 6/10, and the results matched that outlook well.

Nearly 1,000 damaging wind reports were recorded, with approximately 750 tied to a major Mid-Atlantic event. Hail activity remained more isolated, producing:

  • 58 reports of hail larger than one inch

  • 20 reports of hail larger than two inches

  • Notable hail in Iowa, South Dakota, and Michigan’s Upper Peninsula

July continues to be a quiet month for hail overall, keeping the year on pace to finish below average unless activity increases later in the season.

Monday: Significant Storms Around Lake Michigan

The week begins with a powerful cluster of thunderstorms moving south along Lake Michigan.

Milwaukee, Chicago, and surrounding communities are at risk for damaging winds and large hail. Several reports of two-inch hail had already occurred in Chicago’s western suburbs by late Monday morning.

A particularly significant storm near Appleton, Wisconsin, also appeared to produce a strong tornado in a densely populated area.

Additional damaging wind and hail activity may continue into northern Indiana as the storms move southeast.

The main Monday risk zone includes:

  • Eastern Wisconsin

  • Milwaukee

  • Chicago and its western suburbs

  • Northwest Indiana

  • Communities surrounding Lake Michigan

Tuesday: Damaging Winds Shift Toward Virginia and Washington, D.C.

A cold front moves south and east Tuesday, triggering thunderstorms across parts of the Mid-Atlantic.

Damaging wind will be the primary concern, with some small hail also possible. Areas to monitor include:

  • Virginia

  • Washington, D.C.

  • Communities around the Capital Beltway

  • Nearby Mid-Atlantic markets

The setup is less likely to produce widespread large hail, but strong wind gusts may still create localized property damage.

Wednesday: Large Hail Risk Returns to the Great Plains

Wednesday brings a more traditional Great Plains severe weather setup.

Widely scattered storms may produce large hail, potentially reaching golf-ball size in isolated locations. Coverage is expected to remain limited, so impacts may be concentrated in a smaller number of communities.

The strongest storms should remain east of Denver rather than affecting the metro directly.

Contractors should monitor portions of:

  • Eastern Colorado

  • Western Kansas

  • Western Nebraska

  • Nearby central High Plains markets

Thursday: Localized Risk in the Dakotas and Nebraska

The severe weather threat becomes more localized Thursday, focusing on the southern Dakotas and Nebraska.

Storm coverage is not expected to be widespread, but any stronger cells could still produce hail and damaging wind.

This appears to be a targeted rather than regional opportunity, making accurate storm tracking especially important.

Friday Through Sunday: Quieter but Not Completely Inactive

The weekend forecast remains somewhat uncertain because weather models continue to shift.

Friday may produce isolated storms across the Dakotas. Saturday appears relatively quiet, although scattered thunderstorms could develop along the Gulf Coast. Those storms are not expected to be significant hail producers.

By Sunday, a possible damaging wind threat may emerge across the Northeast. Confidence remains limited regarding the location and strength of those storms, but the region is worth monitoring as the weekend approaches.

Key Markets to Watch

Monday

  • Milwaukee

  • Chicago

  • Western suburbs of Chicago

  • Appleton and eastern Wisconsin

  • Northern Indiana

Tuesday

  • Virginia

  • Washington, D.C.

  • Capital Beltway region

Wednesday

  • Eastern Colorado

  • Western Kansas

  • Western Nebraska

  • Central High Plains

Thursday and Friday

  • South Dakota

  • North Dakota

  • Nebraska

Sunday

  • Northeast U.S.

What This Means for Roofing and Restoration Companies

This week is less about one widespread national outbreak and more about several targeted opportunities.

The most immediate concern is Monday’s activity around Lake Michigan, where large hail, damaging winds, and tornado damage may create inspection demand across populated markets.

Tuesday’s Mid-Atlantic wind threat and Wednesday’s Great Plains hail risk also deserve attention. Because storm coverage becomes more isolated later in the week, contractors will benefit from tracking exact storm paths and prioritizing verified areas of impact.

Bottom Line

The July 27 through August 2 forecast earns an Extreme Weather Insights Score of 5/10.

Monday is likely to be the most impactful day, with severe thunderstorms affecting Wisconsin, Chicago, and northern Indiana. Damaging winds then shift toward Virginia and Washington, D.C., before isolated large hail becomes possible across the Great Plains on Wednesday.

The remainder of the week looks quieter, although localized opportunities may continue across the Dakotas, Nebraska, and Northeast.​