Weather Alerts For Arvada, CO

URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 148 AM MST Mon Dec 22 2025 ...CRITICAL FIRE WEATHER TODAY... .Near record temperatures today, combined with another period of gusty westerly winds in and near the Front Range foothills will lead to critical fire weather conditions, especially from the Boulder county foothills south into South Park and the Palmer Divide. Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County-Elbert/Central and East Douglas Counties Above 6000 Feet- 148 AM MST Mon Dec 22 2025 ...RED FLAG WARNING IN EFFECT FROM 8 AM THIS MORNING TO 5 PM MST THIS AFTERNOON FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE ZONES 239 AND 241... The National Weather Service in Denver has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 8 AM this morning to 5 PM MST this afternoon. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zones 239 and 241. * TIMING...From 8 AM this morning to 5 PM MST this afternoon. * WINDS...West 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 9 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. &&