Warren Hail Map — Last 30 SPC Reporting Days

Explore our interactive Warren hail map to track severe weather events, storm damage, and hail reports across Macomb County and the Detroit metropolitan area. Whether you are a homeowner or a roofing contractor, stay informed about local storm impacts. This page shows live NOAA/SPC hail reports for Warren in the last 30 days.

About hail reports in Warren

Warren, located in Macomb County, experiences severe thunderstorms primarily during the spring and summer months, occasionally bringing damaging hail. While massive hail is less frequent than in the Plains, the area has seen notable storms, such as the severe weather outbreaks in the summer of 2021 that caused significant property and vehicle damage across the Detroit metro. Local meteorological drivers include the interaction of warm, humid air masses with cold fronts moving across the Great Lakes.

This Warren area research page connects reported NOAA/SPC hail activity with THOR’s interactive map. Use the map to investigate a place, ZIP code, county, address, or storm area alongside available hail swaths, NEXRAD radar, and Timeline replay.

From hail research to field work

  1. Open the interactive map and review reported hail in the selected area.
  2. Compare the broader storm corridor with radar, hail swaths, and Timeline replay.
  3. Use Market Priority, Impact View, and map layers to focus the next area.
  4. Save the investigation as a property report, lead workflow, alert, or export.

Open Warren in THOR · Explore THOR features

Places to research around Warren

  • Center Line
  • Sterling Heights
  • Roseville
  • Royal Oak
  • Madison Heights

Data and method

THOR uses preliminary NOAA Storm Prediction Center reports as a starting point for local hail research. Reports can be revised or incomplete, so use the interactive map and available radar context to investigate the broader storm picture.

Read THOR’s storm-data methodology.

Hail map questions

What is a hail swath map?

A hail swath is a radar-derived estimate of where a hail-producing storm cell traveled. THOR places swaths beside reported hail events, radar, and Timeline replay so you can study the full storm corridor.

Can I check hail history by address?

Yes. THOR searches by address, ZIP code, county, or place and creates Property Storm History reports that stay in My Reports for reopening, sharing, or browser PDF export.

Can roofing teams use THOR for canvassing?

Yes. THOR includes built-in canvassing with map pins, imported leads, statuses, notes, call and drive actions, follow-up dates, Storm Hits, Lead Storm Monitor, and exportable storm data.

How does THOR help prioritize storm damage work?

Market Priority compares the storm events already on the map with household, residential-density, population, and Residential Score context. Impact View, Heat Grid, and Timeline help the team sort the broader storm picture before field follow-up.

Build the next storm workflow

THOR combines nationwide hail research with storm replay, mapping, reports, alerts, canvassing, lead follow-up, and exports in one workspace.

Start the 14-day free trial · For roofing contractors