Red Flag Warning
Issued by NWS Denver/Boulder, CO

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5
000
WWUS85 KBOU 190836
RFWBOU

URGENT - FIRE WEATHER MESSAGE
National Weather Service Denver/Boulder CO
236 AM MDT Tue Sep 19 2017

...Critical to Extreme Fire Weather Conditions this afternoon into
the early evening hours...

.West to southwest winds will increase ahead of a cold front.
Gusts to 50 mph will be possible over the higher terrain with
gusts from 30 to 40 mph at lower elevations. These winds combined
with relative humidity values of 8 to 15 percent will result in
extreme fire weather conditions in places. Winds are expected to
shift to the north this evening as a cold front pushes through.
Relative humidities are expected to rapidly improve behind the
cold front.

COZ239-240-242>245-248>251-191645-
/O.UPG.KBOU.FW.A.0021.170919T1700Z-170920T0200Z/
/O.EXA.KBOU.FW.W.0024.170919T1700Z-170920T0200Z/
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-Northeast Weld County-
Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-Logan County-
Washington County-Sedgwick County-Phillips County-
236 AM MDT Tue Sep 19 2017

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM MDT
THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHEAST
PLAINS OF COLORADO...

The National Weather Service in Denver has issued a Red Flag
Warning FOR WIND AND LOW RELATIVE HUMIDITY...which is in effect
from 11 AM this morning to 8 PM MDT this evening. The Fire
Weather Watch is no longer in effect.

* Affected Area...Fire Weather Zones 239...240...242...243...
  244...245...248...249...250 and 251.

* Timing...11 AM to 8 PM MDT Tuesday.

* Winds...Southwest 10 to 20 mph with gusts up to 30 mph.

* Relative Humidity...as low as 8 percent.

* Impacts...Gusty winds and low relative humidity will result in
  critical fire weather conditions.

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.

&&

$$

COZ212>216-238-241-246-247-191645-
/O.CON.KBOU.FW.W.0024.170919T1700Z-170920T0200Z/
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-Grand and Summit Counties Below 9000 Feet-
Central and Southeast Park County-
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-
Larimer County Below 6000 Feet/Northwest Weld County-
Elbert/Central and East Douglas Counties Above 6000 Feet-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
236 AM MDT Tue Sep 19 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
8 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR
THE NORTH CENTRAL MOUNTAINS, FOOTHILLS, SOUTH PARK AND THE PALMER
DIVIDE...

* Affected Area...Fire Weather Zones 212...213...214...215...
  216...238...241...246 and 247.

* Timing...Tuesday. 11 AM through 8 PM.

* Winds...Southwest 20 to 30 mph with gusts up to 50 mph.

* Relative Humidity...as low as 10 percent.

* Impacts...Gusty winds and low relative humidity will result in
  critical fire weather conditions. Very windy conditions with
  relative humidities around 10 percent may result in extreme fire
  weather conditions for areas in and near the Foothills and over
  the Palmer Divide.

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.

&&

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.