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Air Quality Alert

Clear Creek-Summit-Gilpin-Jackson-Grand-
410 PM MDT Wed Aug 12 2020


The Colorado Department of Public Health and Environment has
issued the following...

WHAT...Air Quality Health Advisory for Wildfire Smoke.

WHERE...Issued for Routt, Eagle, Jackson, Grand, Summit, Clear
Creek, Gilpin, northern Mesa, central and eastern Garfield, and
eastern Rio Blanco Counties. Locations include, but are not
limited to Steamboat Springs, Oak Creek, Hayden, Breckenridge,
Silverthorne, Eagle, Avon, Vail, Walden, Kremmling, Granby,
Georgetown, Central City, Grand Junction, Palisade, De Beque,
Parachute, Rifle, Glenwood Springs, and Meeker.

WHEN...900 AM Wednesday August 12 to 900 AM Thursday August 13

IMPACTS...Widespread heavy smoke has been observed across large
sections of northern, central, and western Colorado due to the
Pine Gulch and Grizzly Creek wildfires. Smoke will gradually
diminish Wednesday morning as atmospheric mixing increases, with
the slowest improvement occurring in valley locations. By
Wednesday afternoon the wind at the fires will be out of a west to
southwest direction. This will bring periods of moderate to heavy
smoke for areas to the east and northeast of both wildfires,
including locations as far away as the Continental Divide. By late
Wednesday evening smoke will begin to drain into lower lying areas
surrounding both fires. This will bring longer duration, heavy
smoke through early Wednesday morning to several drainages near
the Pine Gulch wildfire including Hunter Canyon, Corcoran Wash,
South Dry Fork, Middle Dry Fork, North Dry Fork, Dry Fork Roan
Creek, Roan Creek, Kimball Creek, and into the Grand Junction
area. Meanwhile, heavy overnight smoke from the Grizzly Creek
wildfire will impact locations along Interstate 70 in central and
eastern parts of Garfield 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.


Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1048 AM MDT Wed Aug 12 2020

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
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
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
1048 AM MDT Wed Aug 12 2020

This hazardous weather outlook is for northeast and north central

.DAY ONE...Today and Tonight

It will be hot and dry once again today leading to elevated fire
danger. Isolated high based showers will be possible along and
west of the urban corridor. Gusty outflow winds up to 50 mph and a
few sprinkles will be possible with these showers.

A couple strong to severe thunderstorms will be possible over the
northeast corner of Colorado this afternoon and early evening.
Damaging wind gusts to 60 mph and hail up to quarter size could
occur with the strongest storms.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Hot and mainly dry weather will keep the fire danger elevated
through the period, especially Thursday through Sunday. Better
chances for showers and thunderstorms return this weekend, though
most storms will only produce light precipitation.


Spotter activation will not be needed today and tonight.


U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
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