Contra Costa County Hail Map & Storm Reports

Hail, wind, and tornado reports from official NOAA sources (NWS & SPC) · Last 12 months · Updated Nov 1, 2026

Looking for storm and wind reports in Contra Costa County, California? Official National Weather Service (NWS) and Storm Prediction Center (SPC) records show 2 severe weather events in the last 12 months — 2 high-wind reports. The most recent recorded storm activity was on Feb 17, 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.

Map of Contra Costa County, California showing the county boundary and surrounding cities — Contra Costa County, California. Map © Mapbox © OpenStreetMap · County boundary: US Census Bureau.

Events (12 mo)

Hail

Wind

Tornado

Feb 17, 2026

Most recent

What the radar showed

Radar snapshot during the Feb 17, 2026 wind event near 1 W Rodeo, Contra Costa County, California, with NWS warning polygons — NEXRAD radar at the moment of the Feb 17, 2026 wind event (Unknown) near 1 W Rodeo. Outlined polygons are the storm-based warnings exactly as issued by the National Weather Service. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

Storm exposure for an address in Contra Costa County

Get a free report in your folder. A city is enough if you do not have a street.

Storm log — the official record, day by day

Events older than 30 days, as recorded by the National Weather Service and Storm Prediction Center. Excerpts are quoted directly from official warnings and verified reports.

Tuesday, February 17, 2026

1 SPC verified storm report

“Tree down blocking the right lane of northbound San Pablo Avenue at the oil refinery. (MTR)”

SPC verified report · 1 W Rodeo

Wind Unknown 1 W Rodeo SPC verified report

Thursday, December 25, 2025

1 SPC verified storm report

“Tree blocking the slow lane of the San Pablo Avenue onramp to eastbound California Highway 4. (MTR)”

SPC verified report · 3 SW Rodeo

Wind Unknown 3 SW Rodeo SPC verified report

Today's severe weather outlook

Storm Prediction Center Day 1 convective outlook — national severe weather risk map for today — Storm Prediction Center Day 1 convective outlook: categorical severe weather risk for today, updated several times daily. Source: NOAA/NWS Storm Prediction Center.

Common questions

When was the last severe storm in Contra Costa County, CA?

The most recent recorded event was on Feb 17, 2026. Official NWS and SPC records show 2 severe weather events in Contra Costa County over the last 12 months. Exact dates and locations for recent storms are available in the app with a free account.

Did it hail in Contra Costa County recently?

No hail reports in the last 12 months, though other storm activity has been recorded in Contra Costa County.

How do I see hail history for a specific address in Contra Costa County?

Create a free IDOLCheck account and run an address check. It shows verified storm reports and official NWS warning boundaries around any specific property, including the most recent 30 days — county-level pages like this one only tell part of the story.

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Proudly AI-powered. Honestly sourced. IDOLCheck is built by HailyAI. Every storm event, magnitude, radar snapshot, and date on this page is deterministic — retrieved directly from official NOAA, National Weather Service (NWS), and Storm Prediction Center (SPC) storm records through HailyAPI and displayed exactly as reported. Quoted warning and report text is always attributed to its official source. Where the surrounding copy is not a direct quote, it was generated with AI assistance from that same verified storm data and reviewed and approved by humans before publication. AI organizes and presents the record — it never invents storm data.