Weather Alerts for Colorado:Denver Area

Issued by the National Weather Service

Complete Map Details displayed if included in issuing NWSFO statement content

Red Flag Warning  RED FLAG WARNING   Red Flag Warning
COLORADO:DENVER AREA

Areas Affected:
Central and Southeast Park County - Grand and Summit Counties Below 9000 Feet - Jackson County Below 9000 Feet - Jefferson and West Douglas Counties Above 6000 Feet, Gilpin, Clear Creek, Northeast Park Counties Below 9000 Feet - Larimer and Boulder Counties Between 6000 and 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 - West Jackson and West Grand Counties Above 9000 Feet
Effective: Fri, 9/25 2:00pm Updated: Fri, 9/25 3:40am Urgency: Expected
Expires: Fri, 9/25 10:00pm Severity:  Severe  Certainty: Likely

 
Details:
Very warm and dry conditions are expected Friday afternoon. A
powerful storm system well north of Colorado will increase west
winds across the northern half of Colorado throughout the
afternoon and evening hours. Red flag conditions are expected
Friday afternoon for strong winds and low relative humidity. The
strongest winds and driest conditions are expected east of the
Divide across Larimer County, though favorable conditions for
rapid fire growth are possible across all of the warned area.
...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 8 PM MDT
FRIDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHERN
MOUNTAINS, HIGH MOUNTAIN VALLEYS, AND NORTHERN FRONT RANGE
FOOTHILLS. FIRE WEATHER ZONES 211-218...
* Affected Area...Fire Weather Zones 211, 212, 213, 214, 215,
216, 217 and 218.
* Timing...12 PM through 8 PM Friday.
* Winds...West 15 to 25 mph with gusts up to 40 mph.
* Relative Humidity...As low as 12 percent.
* Impacts...Rapid growth of existing fires and new fire starts
will be possible due to the gusty winds and very low humidity.

Information:
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.

Air Quality Alert  AIR QUALITY ALERT   Air Quality Alert
COLORADO:DENVER AREA

Areas Affected:
Jackson - Larimer - Weld
Effective: Thu, 9/24 6:10pm Updated: Fri, 9/25 3:40am Urgency: Unknown
Expires: Fri, 9/25 11:00am Severity: Unknown Certainty: Unknown

 
Details:
...AIR QUALITY HEALTH ADVISORY FOR WILDFIRE SMOKE FROM 400 PM
THURSDAY UNTIL 900 AM FRIDAY...
The Colorado Department of Public Health and Environment has
issued the following...
WHAT...Air Quality Health Advisory for Wildfire Smoke.
WHERE...Routt, Jackson, Larimer, and Weld counties. Locations
include, but are not limited to Steamboat Springs, Clark, Walden,
Cowdrey, Red Feather Lakes, Rustic, Wellington, Fort Collins, and
Greeley.
WHEN...400 PM Thursday September 24 to 900 AM Friday September 25
IMPACTS...Increased fire activity at the Middle Fork, Mullen, and
Cameron Peak wildfires will result in periods of moderate to heavy
smoke at times across the advisory area. The heaviest smoke is
expected for locations in areas near the fires at lower
elevations, particularly during overnight and early morning hours.
This includes the Mad Creek drainage from the Middle Fork fire
southwestward to Routt County Road 129 between Steamboat Springs
and Clark, Poudre Canyon Road and Red Feather Lakes to the
northeast and east of the Cameron Peak fire, and locations along
the Colorado-Wyoming state line in northern Jackson County.
HEALTH INFORMATION...Public Health Recommendations: If smoke is
thick or becomes thick in your neighborhood you may want to remain
indoors. This is especially true for those with heart disease,
respiratory illnesses, the very young, and the elderly. Consider
limiting outdoor activity when moderate to heavy smoke is present.
Consider relocating temporarily if smoke is present indoors and is
making you ill. If visibility is less than 5 miles in smoke in
your neighborhood, smoke has reached levels that are unhealthy.