San Diego Hail Map — Last 30 SPC Reporting Days

While San Diego is famous for its mild climate, winter storms and occasional monsoonal moisture can bring unexpected hail to Southern California. Explore our interactive San Diego hail map to track severe weather and San Diego storm damage across neighborhoods from La Jolla to Chula Vista. This page shows live NOAA/SPC hail reports for San Diego in the last 30 days.

About hail reports in San Diego

Hail in San Diego is relatively rare, typically occurring during strong winter Pacific storms or isolated summer thunderstorms in the inland valleys and mountains. Notable events, such as the unusual hailstorm in February 2018, brought small accumulating hail to coastal and inland areas, causing minor San Diego hail damage and traffic disruptions. The peak season for these rare events aligns with the winter months.

This San Diego 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 San Diego in THOR · Explore THOR features

Places to research around San Diego

  • Chula Vista
  • Oceanside
  • Escondido
  • Carlsbad
  • El Cajon

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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