View as a webpage  /  Share

February 23, 2026

Red flag warning in effect through 10 a.m. to 5 p.m. Tuesday, February 24

The National Weather Service in Boulder has issued a Red Flag Warning in effect from 10 a.m until 5 p.m. on Tuesday, February 24 for an area including eastern Boulder County. High winds and low relative humidity have created conditions favorable for rapid fire spread.

Stage 1 fire restrictions remain in effect in Louisville.

What you should do:

• No outdoor burning and any activity that may produce a spark
• Have a go bag ready and be prepared for wildfires

What is a Red Flag Warning?

The National Weather Service will issue a Red Flag Warning when there’s an increased risk of fire danger. A Red Flag Warning means that the conditions are right for the start or rapid spread of wildfires, and that extra precautions should be taken to prevent them. Low humidity, strong winds, and dry fuels pose an increased risk of fire danger, prompting heightened fire awareness and safety precautions.

What you should do on Red Flag days:

• Avoid any activity that may produce a spark and start a wildfire. This includes avoiding open burning, avoiding mowing operations or dragging chains, or operating any equipment that produces sparks or has open flames. 
• On Red Flag days, residents should be prepared for possible power outages. Xcel Energy (our power provider in Louisville) may be using Enhanced Powerline Safety Settings on Red Flag Days. Learn more about how to prepare for power outages on Boulder County's website. 

Graphic from NWS Denver/Boulder website indicates that the fire weather outlook for Tuesday through Friday will be "near critical conditions".