Fire Weather Watch
Status
Event Continued Active alertStart Time
Sat 03/21/2026 01:00 PM EDTEnd Time
Sun 03/22/2026 12:00 AM EDTSignificance
WatchImpacts
Moderate impact
Headline
...WIDESPREAD CRITICAL FIRE WEATHER CONDITIONS PEAKING SATURDAY...
All-time record March heat, exceptionally low humidity, and
periods of breezy winds will continue to drive critical fire
weather conditions through Saturday. Today, the highest fire
danger will be localized to the Cheyenne Ridge and vicinity where
winds will be strongest. Breezy winds will become expansive on
Saturday coinciding with highly anomalous heat and single-digit
humidity, extending into the foothills and high mountain valleys.
Full Alert Message
URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 253 AM MDT Fri Mar 20 2026 ...WIDESPREAD CRITICAL FIRE WEATHER CONDITIONS PEAKING SATURDAY... All-time record March heat, exceptionally low humidity, and periods of breezy winds will continue to drive critical fire weather conditions through Saturday. Today, the highest fire danger will be localized to the Cheyenne Ridge and vicinity where winds will be strongest. Breezy winds will become expansive on Saturday coinciding with highly anomalous heat and single-digit humidity, extending into the foothills and high mountain valleys. ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHEAST PLAINS AND I-25 CORRIDOR... * AFFECTED AREA...Fire Weather Zones 239, 240, 241, 243, 244, 245, 248, 249, 250 and 251. * TIMING...Saturday from 11 AM through 10 PM MDT. * WINDS...West 5 to 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 5 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 Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.
Technical Header
COZ239>241-243>245-248>251-202100- /O.CON.KBOU.FW.A.0021.260321T1700Z-260322T0400Z/ Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County- Elbert/Central and East Douglas Counties Above 6000 Feet- Central and South Weld County-Morgan County- Central and East Adams and Arapahoe Counties-Logan County- Washington County-Sedgwick County-Phillips County- 253 AM MDT Fri Mar 20 2026