Update: Red flag warning active for Northern Colorado Wednesday – enhanced fire threat

Published Feb 25, 2026

An updated red flag warning was released by the National Weather Service on Tuesday at 4:59 p.m. valid for Wednesday between 10 a.m. and 6 p.m. for Northern Colorado.

Residents can expect winds to be west 25 to 35 mph with gusts up to 60 mph and relative humidity as low as 10 percent.

“Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire,” describes the NWS.

The full list of affected locations includes:

• Larimer County below 6,000 feet/Northwest Weld County

• Boulder/Jefferson counties below 6,000 feet/West Broomfield County

• North Douglas County below 6,000 feet/Denver/West Adams and Arapahoe counties/East Broomfield County

• Northeast Weld County

• Central and South Weld County

• Logan County

What does a red flag warning indicate?

A red flag warning indicates that either extreme fire weather conditions are currently happening or will happen soon, as per the NWS. Warm temperatures, very low humidities, and stronger winds are expected to combine to produce an increased risk of fire to spread rapidly.

What should you do under a red flag warning?

A red flag warning demands vigilance and immediate readiness to respond to potential fires. The NWS provides these vital guidelines to minimize fire hazards and ensure your safety:

1. Bolster burn barrel safety:

If burning is authorized in your vicinity, ensure that all burn barrels feature a weighted metal cover with holes no larger than 3/4 of an inch.

2. Mindful handling of smoking materials:

Prudently discard cigarette butts and avoid flinging cigarettes or matches from a moving vehicle. These seemingly innocuous actions can kindle dry grass, potentially triggering a wildfire.

3. Prudent fire extinguishing practices:

To safeguard against accidental fires, diligently extinguish all outdoor fires. Drown them with an ample amount of water and stir to confirm that everything is cold to the touch. Submerge charcoal in water until it’s thoroughly cooled. Never dispose of live charcoal on the ground.

4. Never desert a blaze:

Refrain from leaving any fire unattended. Even minor parks or embers might be carried into leaves or grass, kindling a fire that can swiftly expand.

Understanding the gravity of a red flag warning and adhering to these precautions is pivotal in mitigating the risk of wildfires during these perilous conditions. Prioritize safety, stay well-informed, and act responsibly to safeguard lives and property.

Source: The National Weather Service