Active Weather Alerts
Red Flag Warning
Issued: 1:57 AM Mar. 18, 2026 – National Weather Service
...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 7 PM MDT WEDNESDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR BOULDER AND DENVER METRO AREAS AND ADJACENT PLAINS THROUGH ADAMS AND ARAPAHOE COUNTIES, FIRE WEATHER ZONES 239, 240, AND 245... * AFFECTED AREA...Fire Weather Zones 239, 240 and 245. * TIMING...From 11 AM to 7 PM MDT Wednesday. * WINDS...West 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 11 percent. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. &&
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