Boulder County Storm Activity

Wind, hail, and tornado activity from official NOAA sources (NWS & SPC) · Last 180 days · Updated Sep 11, 2026

Has it hailed in Boulder County, Colorado recently? Official National Weather Service (NWS) and Storm Prediction Center (SPC) records say yes: 1 hail report with hail up to 1", among 1 severe weather event logged here in the last 180 days. The most recent recorded storm activity was on Jul 28, 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.

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

Events (180d)

Hail

Wind

Tornado

Max hail

Jul 28, 2026

Most recent

What the radar showed

Radar snapshot during the Jul 28, 2026 hail event near Lyons, Boulder County, Colorado, with NWS warning polygons — NEXRAD radar at the moment of the Jul 28, 2026 hail event (1") near Lyons. 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.

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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, July 28, 2026

1 SPC verified storm report — hail up to 1"

“Delayed report via CoCoRaHS. Hail lasted approximately 12 minutes and dented some cars. (BOU)”

SPC verified report · Lyons

Hail 1" Lyons 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 Boulder County, CO?

The most recent recorded event was on Jul 28, 2026. Official NWS and SPC records show 1 severe weather event in Boulder County over the last 180 days. Exact dates and locations for recent storms are available in the app with a free account.

Has there been hail in Boulder County recently?

Yes — 1 hail report in the last 180 days, with hail up to 1" recorded.

How do I check whether a specific address was affected?

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

Most active Colorado counties

Las Animas (135) Kit Carson (116) Washington (115) Kiowa (106) Logan (98) Cheyenne (97) Yuma (83) Morgan (71)

← All Colorado counties

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 our HailyDB engine 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.