Severe Thunderstorm Warning — Adams, CO; Western Arapahoe, CO; Central Arapahoe, CO; Denver, CO; Douglas, CO; Elbert, CO was recorded by Global Incident Tracker on Saturday, 19 September 2026 at 23:55 UTC. The event is classified as a storm incident with a severity rating of Severe, and was detected through the US National Weather Service (NWS).
Severe Thunderstorm Warning issued September 19 at 5:55PM MDT until September 19 at 6:30PM MDT by NWS Denver CO SVRBOU The National Weather Service in Denver has issued a * Severe Thunderstorm Warning for... Northwestern Elbert County in east central Colorado... South Central Adams County in northeastern Colorado... Western Arapahoe and Central Arapahoe County in northeastern Colorado... South Central Denver County in northeastern Colorado... Northeastern Douglas County in northeastern Colorado... * Until 630 PM MDT. * At 555 PM MDT, severe thunderstorms were located along a line from near Greenwood Village to over Elbert, or along a line from 9 miles south of Denver to 43 miles southeast of Denver, moving northeast at 30 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Southern Denver,
Where this happened
The incident is located in United States (North America), whose capital is Washington, D.C.. Historically, United States is most affected by hurricanes, wildfires, tornadoes, earthquakes and floods. You can follow every incident recorded in this country, updated live, on the United States incident tracker.
Approximate coordinates of the reported event are 39.521°, -104.703°. The marker on the map above shows this position; for news-derived reports the location reflects the place named in media coverage and may represent a district or city rather than an exact site.
Understanding storm events
Severe thunderstorms, windstorms, hail and winter storms. Severe storms combine wind, lightning, hail and sudden downpours. Secondary effects — falling trees, power line damage and flash flooding on roads — cause the majority of injuries.
How severity is rated
Global Incident Tracker rates every event on a four-step scale — Minor, Moderate, Severe and Extreme — derived from the source signal: earthquake magnitude, official GDACS alert colour, or the volume of independent media reporting for news-derived incidents. This event is currently rated Severe. Ratings can change as more information becomes available, and a rating is a monitoring signal rather than an official government assessment.
Safety guidance for storm situations
- Move indoors and away from windows; avoid sheltering under trees.
- Unplug sensitive electronics and avoid using wired equipment during lightning.
- Assume every downed power line is live and keep well clear.
- Do not drive through flooded underpasses.
- Follow only official instructions from local authorities and emergency services — this page is a monitoring record, not an emergency alert.
Data and verification
This record was generated automatically from the US National Weather Service (NWS) and de-duplicated against our archive. Early reports for any incident can be revised: locations get refined, magnitudes are recalculated and impact figures change as assessments arrive. We deliberately do not publish casualty numbers unless an official source states them. The original source report is linked at the top of this page.
Keep watching the situation on our live world incident map, browse every storms we track on the Storm tracker, or see today's global picture on the incidents today page.
Timeline and sources
Official warning
Issued by U.S. National Weather Service. A warning or forecast describes a hazard; on its own it is not a report that harm occurred.
How statuses are decided · the number of reports is never treated as confirmation.
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· received · event time 19 Sep 2026, 23:55 UTCFirst report Official warning
First recorded from U.S. National Weather Service.
Times are when this site received each report, in UTC; the event time is shown where the source gave one. Copies of one syndicated story count as one report.
Conditions at the time
Light rain of 0.4 mm was recorded, and the temperature peaked at 23°C, and winds reached 41 km/h. Conditions are shown for context only — they do not establish a cause.
Weather reanalysis for this location and date via Open-Meteo.