January 6, 2026

Red flag warning in effect through 5 p.m. Thursday, January 6

The National Weather Service in Boulder has issued a Red Flag Warning in effect from 8 a.m. this morning to 5 p.m. this evening across the western Denver metro and southern Front Range foothills. Gusty winds and low relative humidity will combine to create critical fire weather conditions from late this morning through most of the afternoon. Winds are expected to diminish near sunset this evening.

The daily drill:

• Avoid 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.