Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
326 AM MDT Sat Mar 21 2026

COZ030>051-220930-
Jackson County Below 9000 Feet-
West Jackson and West Grand Counties Above 9000 Feet-
Grand and Summit Counties Below 9000 Feet-
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Central and Southeast Park County-
Larimer County Below 6000 Feet/Northwest Weld County-
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-
Northeast Weld County-Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
326 AM MDT Sat Mar 21 2026

This hazardous weather outlook is for northeast and north central
Colorado.

.DAY ONE...Today and Tonight

Critical fire weather conditions will be widespread Saturday,
particularly for the urban corridor, foothills and high mountain
valleys due to the combination of record-breaking March heat,
exceptionally low humidity, and breezy west winds with gusts 30 to
45 mph, strongest above 6,000 ft. Moderate heat risk is expected
for portions of the lower elevations this afternoon.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Following a brief cooldown Sunday, temperatures will rebound next
week and may approach or exceeds records once more Tuesday through
Thursday. There will be increasing potential for critical fire
weather conditions each day through at least Wednesday, and
potentially extending into Thursday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

URGENT - FIRE WEATHER MESSAGE
National Weather Service Denver/Boulder CO
655 PM 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.

COZ211-213-211300-
/O.CON.KBOU.FW.W.0027.260321T1700Z-260322T0400Z/
Jackson County Below 9000 Feet-
Grand and Summit Counties Below 9000 Feet-
655 PM MDT Fri Mar 20 2026

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 10 PM MDT
SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTH PARK AND
MIDDLE PARK...FIRE WEATHER ZONES 211 AND 213...

* AFFECTED AREA...Fire Weather Zones 211 and 213.

* TIMING...From 11 AM to 10 PM MDT Saturday.

* WINDS...West 10 to 20 mph with gusts up to 35 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.

&&

$$

Hazard Report Provided By forecast.weather.gov