Flash Flood Warning — Jefferson 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 13 at 5:33PM MDT until August 13 at 7:00PM MDT by NWS Denver CO
At 533 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 3 inches of rain have fallen. Additional rainfall amounts up to 0.5 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, gulches, roads, and poor drainage and low-lying areas. Some locations that will experience flash flooding include... South Platte, Buffalo Creek and Foxton. This includes the following streams and drainages... Last Resort Creek, Buffalo Creek, North Fork South Platte River, Willow Creek, Bear Creek, Pine Creek, Spring Creek, West Bear Creek, Indian Creek, South Platte River, Long Gulch and Shinglemill Creek.
Effective August 13, 2026 at 7:33 PM ET · Expires August 13, 2026 at 9:00 PM ET
Event Details
Event Type
Flash Flood Warning
Severity
severe
Issued By
NWS Denver CO
Expires
August 13, 2026 at 9:00 PM ET
Last Checked
1 minute ago
What To Do
📋 Official NWS Guidance
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, country roads, farmland along creeks, and other low lying areas.
Also In Effect For
This same Flash Flood Warning also covers:
Other Active Alerts in Colorado
Flash Flood Warning
Flood Advisory
Severe Thunderstorm Warning
Flash Flood Warning
Severe Thunderstorm Warning
Severe Thunderstorm Warning
Get Flash Flood Warning Alerts for Jefferson County
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Frequently Asked Questions
What does a Flash Flood Warning mean for Jefferson 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 (1 minute ago). It's set to expire August 13, 2026 at 9:00 PM ET.
How do I get notified about Flash Flood Warning alerts for Jefferson County?
Download StormCast free on Google Play and set Jefferson 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 Douglas County.