Charleston Hail Map — Last 30 SPC Reporting Days

Charleston experiences severe thunderstorms and occasional hail, particularly during the spring and summer months when sea breeze fronts trigger intense convection. This interactive map tracks recent hail reports, wind damage, and severe weather warnings across the Charleston metro area, including Mount Pleasant and North Charleston. This page shows live NOAA/SPC hail reports for Charleston in the last 30 days.

About hail reports in Charleston

While large hail is less common in coastal South Carolina than inland, Charleston has experienced damaging hail events, such as the severe storms in May 2020 that brought 1-inch hail to the area. The peak season for severe thunderstorms in the Lowcountry runs from March through July, driven by high humidity and atmospheric instability.

This Charleston 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 Charleston in THOR · Explore THOR features

Places to research around Charleston

  • Mount Pleasant
  • North Charleston
  • Summerville
  • Goose Creek
  • Hanahan

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.

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