Red Flag Warning

Locations Affected

Denver, CO ∙ Aurora, CO ∙ Fort Collins, CO ∙ Lakewood, CO ∙ Westminster, CO ∙ Boulder, CO ∙ Arvada, CO ∙ Thornton, CO ∙ Centennial, CO ∙ Greeley, CO

Full Alert Message

URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 923 PM MDT Fri Apr 11 2025 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 8 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE DENVER METRO, FOOTHILLS, SOUTH PARK, PALMER DIVIDE, AND PORTIONS OF THE PLAINS... * AFFECTED AREA...Fire Weather Zones 214, 215, 216, 238, 239, 240, 241, 242, 243 and 244. * TIMING...From noon to 8 PM MDT Saturday. * WINDS...West 10 to 20 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 7 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.

---