Red Flag Warning Issued for Denver Metro and Northeast Colorado Plains Through Saturday
This alert is no longer in effect.
NOAA issued it on April 6, 2026, 4 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.
The National Weather Service has issued a Red Flag Warning for the Denver area and northeast Colorado due to strong winds and low humidity, creating critical fire weather conditions.
Read this weather record in 30 seconds
- Record type
- Red Flag Warning
- Affected area
- Northeast Colorado and Denver Metro
- Issued
- April 6, 2026
- Issuing authority
- NWS Denver
Fire-weather notices describe conditions that can support rapid fire spread; they do not report that a fire is present. Check local emergency sources for any active incident.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Northeast Colorado and Denver Metro.
Alert Details
The National Weather Service in Denver has issued a Red Flag Warning for wind and low relative humidity. This alert indicates that critical fire weather conditions are either occurring now or are imminent. The warning replaces the previously issued Fire Weather Watch.
Affected Areas
The warning covers a broad region of the Colorado Urban Corridor and Northeast Plains, including:
- Larimer, Boulder, Jefferson, and North Douglas Counties (below 6000 feet)
- Denver, Broomfield, West Adams, and West Arapahoe Counties
- Elbert, Central, and East Douglas Counties (above 6000 feet)
- Weld, Morgan, Logan, and Washington Counties
- Central and East Adams and Arapahoe Counties
- North and South Lincoln County
Expected Conditions
Two distinct periods of critical weather are expected:
Friday:
- Winds: West winds between 15 to 25 mph, with gusts reaching 25 to 40 mph.
- Humidity: Relative humidity levels will drop to between 12 and 17 percent.
Saturday:
- Winds: West winds increasing to 20 to 30 mph, with gusts reaching 35 to 50 mph.
- Humidity: Relative humidity levels will drop further to between 10 and 15 percent.
Timeline
The Red Flag Warning is effective during the following windows:
- Friday, March 13: 11:00 AM to 8:00 PM MDT
- Saturday, March 14: 11:00 AM to 9:00 PM MDT
What You Should Do
Conditions will be favorable for rapid fire spread. Residents in the affected areas are advised to:
- Avoid all outdoor burning.
- Refrain from any activity that may produce a spark and start a wildfire.
- Exercise extreme caution with machinery and cigarettes.
- Prepare for the possibility of extreme fire behavior due to the combination of strong winds, low humidity, and warm temperatures.
Original source: NOAA Official Notice ↗
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