Flash Flood Warning — Adams County, Colorado
Flooding is imminent or already occurring. Move to higher ground immediately — never drive through flooded roads.
Current Status
🌊 Active: Flash Flood Warning
Flash Flood Warning issued August 15 at 3:36PM MDT until August 15 at 5:45PM MDT by NWS Denver CO
At 336 PM MDT, Broadcast media reported flash flooding was occurring near Chambers and Iliff, and Mississippi and Havana. Between 1.5 and 3 inches of rain have fallen. Additional rainfall amounts up to 0.2 inches are possible in the warned area. Flash flooding is already occurring. HAZARD...Life threatening flash flooding. Heavy rain producing flash flooding. SOURCE...Broadcast media reported. IMPACT...Life threatening flash flooding of creeks and streams, roads, and low lying areas. Some locations that will experience flash flooding include... Eastern Denver, Aurora, and Buckley SFB. This includes the following streams and drainages... Toll Gate Creek, Sand Creek, Cherry Creek, South Platte River, First Creek, East Toll Gate Creek, West Toll Gate Creek, Murphy Creek, Coal Creek, Westerly Creek, Third Creek and Second Creek.
Effective August 15, 2026 at 5:36 PM ET · Expires August 15, 2026 at 7:45 PM ET
Event Details
Event Type
Flash Flood Warning
Severity
severe
Issued By
NWS Denver CO
Expires
August 15, 2026 at 7:45 PM ET
Last Checked
just now
What To Do
📋 Official NWS Guidance
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Move to higher ground now. Act quickly to protect your life. Excessive runoff from this storm will cause flash flooding of small creeks and streams, highways, streets, underpasses, drainage areas and other low lying spots.
Also In Effect For
This same Flash Flood Warning also covers:
Other Active Alerts in Colorado
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Severe Thunderstorm Warning
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Get Flash Flood Warning Alerts for Adams County
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Frequently Asked Questions
What does a Flash Flood Warning mean for Adams County, Colorado?
Flooding is imminent or already occurring. Move to higher ground immediately — never drive through flooded roads.
Is this Flash Flood Warning currently active?
Yes — this alert is active as of our last check (just now). It's set to expire August 15, 2026 at 7:45 PM ET.
How do I get notified about Flash Flood Warning alerts for Adams County?
Download StormCast free on Google Play and set Adams County, Colorado as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
What other areas does this alert cover?
This same Flash Flood Warning is also in effect for Denver County, Western Arapahoe County.