Severe Expected Likely Red Flag Warning Red Flag Warning issued March 18 at 3:36AM MDT until March 18 at 7:00PM MDT by NWS Denver CO Mar 18, 11:00 AM → Mar 18, 7:00 PM * AFFECTED AREA...Fire Weather Zones 239, 240, 243, 244, 245,248, 249, 250 and 251.* TIMING...From 11 AM this morning to 7 PM MDT this evening.* WINDS...Northwest 10 to 20 mph with gusts up to 30 mph.* RELATIVE HUMIDITY...As low as 8 percent. IMPACTS: Conditions will be favorable for rapid fire spread.Avoid outdoor burning and any activity that may produce aspark and start a wildfire. + Read More 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. Updated: Mar 18, 6:39 AM Source: NWS Alert