39°42'N / 105°5'W / Altitude 1685 m / 14:04 2026/04/21, America/Denver (UTC-6)
From: 2026/04/21, 05:18
To: 2026/04/21, 23:30
* AFFECTED AREA...Fire Weather Zones 214, 215, 216, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250 and 251. * TIMING...From 10 AM Wednesday to midnight MDT Wednesday night. * WINDS...Southwest 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 6 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.
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County,Jefferson
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.
NWS Denver CO
2026/04/21, 05:18