Flash Flood Warning Issued for Douglas and Jefferson Counties, CO

Source: NOAA · Douglas and Jefferson Counties, CO

This alert is no longer in effect.

NOAA issued it on August 13, 2026, 10 days ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).

Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.

NWS Denver has issued a Flash Flood Warning for East Central Jefferson County and Northwestern Douglas County until 7 PM MDT.

Read this weather record in 30 seconds

Record type
Flash Flood Warning
Affected area
Douglas and Jefferson Counties, CO
Issued
August 13, 2026
Issuing authority
NWS Denver CO

Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.

Record status: historical. It was issued 10 days ago; use the issuing agency's live warning service for current conditions in Douglas and Jefferson Counties, CO.

Alert Details

Flash Flood Warning issued by NWS Denver CO. Effective from 4:00 PM MDT August 13, 2026 until 7:00 PM MDT August 13, 2026. Severity: Severe. Urgency: Immediate. Certainty: Likely.

Affected Areas

East Central Jefferson County in central Colorado and Northwestern Douglas County in northeastern Colorado. Specific locations include South Platte, Buffalo Creek, and Foxton. 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.

What You Should Do

Move to higher ground now. Act quickly to protect your life. Avoid flash flooding of small creeks and streams, country roads, farmland along creeks, and other low-lying areas.

Expected Conditions

Doppler radar indicated thunderstorms producing heavy rain. Between 1 and 3 inches of rain have fallen. Additional rainfall amounts up to 1.5 inches are possible. Flash flooding of small creeks and streams, gulches, roads, and poor drainage and low-lying areas is ongoing or expected to begin shortly.

Timeline

The warning is in effect from 4:00 PM MDT to 7:00 PM MDT on August 13, 2026.

Original source: NOAA Official Notice ↗

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Nationwide notices with similar length or severity timing 8

Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.

Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
NWS Denver has issued a Flash Flood Warning for East Central Jefferson County and Northwestern Douglas County until 7 PM MDT.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects Douglas and Jefferson Counties, CO. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.