Flash Flood Warning Issued for Adams, Arapahoe and Denver Counties
This alert is no longer in effect.
NOAA issued it on June 17, 2026, 2 months 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 parts of northeastern Colorado until 4:15 PM MDT on June 1.
Read this weather record in 30 seconds
- Record type
- Flash Flood Warning
- Affected area
- Northeastern Colorado
- Issued
- June 17, 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 2 months ago; use the issuing agency's live warning service for current conditions in Northeastern Colorado.
Alert Details
Flash Flood Warning issued by NWS Denver CO (NOAA). Effective from June 1 at 2:14 PM MDT until June 1 at 4:15 PM MDT.
Affected Areas
Southwestern Adams County, Western Arapahoe County, and Eastern Denver County in northeastern Colorado. Locations include Northwestern Aurora. Highways impacted: Interstate 70 between mile markers 282 and 289; Interstate 225 between mile markers 8 and 12.
What You Should Do
Turn around, don't drown when encountering flooded roads. Move to higher ground now. Act quickly to protect your life.
Expected Conditions
At 2:14 PM MDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain 4 miles northwest of Buckley SFB, or 8 miles east of Denver. Between 1.5 and 2 inches of rain have fallen. Additional rainfall of 0.5 to 0.75 inches is possible in the next hour. Flash flooding is ongoing or expected to begin shortly. Hazard: Flash flooding caused by thunderstorms.
Timeline
Alert effective June 1, 2026 from 2:14 PM MDT to 4:15 PM MDT.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →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.
Similar body length
Nearest notices by article body length (1,034 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to June 17, 2026.
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