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Front Range Air Quality Forecast & Colorado Smoke Outlook

FRONT RANGE AIR QUALITY FORECAST:
Friday, September 23, 2016,2:30 PM MDT

Ozone concentrations are expected to be in the Good to Moderate range on Friday. Moderate concentrations will most likely be in the Denver Metro Area, particularly in the south and western suburbs and lower foothills as well as along the I-25 corridor northward to Fort Collins.

Ozone concentrations are expected to be in the Good category on Saturday and Sunday.

Ozone concentrations are expected to be Good to Moderate on Monday. Moderate Concentrations of ozone are most likely in the Denver metro area on Monday.

Unusually sensitive people should consider reducing prolonged or heavy outdoor exertion in these areas from noon until 8 PM on Friday and from noon until 10 PM on Monday.

Fine Particulate Matter concentrations are expected to be in the Good to Moderate range on Friday. Moderate concentrations of Fine Particulates are most likely in the Denver metro area, and northward along the Front Range urban corridor, including the Fort Collins and Greeley areas. Unusually sensitive people should consider reducing prolonged or heavy exertion in these areas on Friday. Concentrations of Fine Particulates are expected to be in the Good category on Saturday through Monday.

Carbon Monoxide concentrations are expected to be in the Good category Friday through Monday.

Nitrogen Dioxide concentrations are expected to be in the Good category Friday through Monday.

Visibility is expected to be Good to Moderate on Saturday through Monday.


COLORADO SMOKE OUTLOOK:
Friday, September 23, 2016, 2:00 PM MDT

SMOKE FROM FIRES:
The 38,380 acre Beaver Creek Wildfire is located in northwestern Jackson County approximately 24 miles northwest of Walden. Wind will generally be out of a south or southwesterly direction on Friday, shifting to west to northwesterly on Saturday, and may be breezy to strong at times. Any smoke that is produced will likely be transported to locations north or northeast of the fire on Friday, and toward the south and southeast of the fire on Saturday. This could impact areas along and near the Colorado/Wyoming state line on Friday, and in areas near Cowdrey and perhaps as far south as Walden on Saturday. Depending on wind strength and smoke production these effects could push as far east as northern parts of the Front Range region. Rain showers, thunderstorms, and overnight snow showers remain possible throughout the evening and overnight Friday night. Scattered rain showers remain possible on Saturday. Any showers that form may produce gusty, erratic winds that can send smoke in any direction. Mild conditions with light winds from the north or northwest are expected on Sunday, allowing smoke to be transported to the south or southeast of the fire. During the overnight hours on Saturday and Sunday night, light drainage winds may allow smoke to reach lower terrain. This may effect areas to the north of Cowdrey and northward to the Wyoming State line.

The 464 acre Silver Creek Wildfire is located in Routt County approximately 10 miles east of Phippsburg. Wind will generally be out of a south or southwesterly direction on Friday, shifting to west to northwesterly on Saturday, and may be breezy to strong at times. Any smoke that is produced will likely be transported to locations north or northeast of the fire on Friday, and toward the south and southeast of the fire on Saturday. This could impact areas in the Yampa Valley including Phippsburg, Yampa, and Toponas on Saturday. Rain showers, thunderstorms, and overnight snow showers remain possible throughout the evening and overnight Friday night. Scattered rain showers remain possible on Saturday. Any showers that form may produce gusty, erratic winds that can send smoke in any direction. Mild conditions with light winds from the north or northwest are expected on Sunday, allowing smoke to be transported to the south or southeast of the fire. During the overnight hours on Saturday and Sunday night, light drainage winds may allow smoke to reach lower terrain. This may effect areas in the vicinity of Stagecoach State Park.

The 4,417 acre Lost Solar Wildfire is located in Garfield and Rio Blanco Counties, approximately 24 miles southeast of Meeker. Wind will generally be out of a south or southwesterly direction on Friday, shifting to west to northwesterly on Saturday, and may be breezy to strong at times. Any smoke that is produced by the fire will likely be transported to locations north or northeast of the fire on Friday, and to the south and southeast of the fire on Saturday. Rain showers, thunderstorms, and overnight snow showers remain possible throughout the evening and overnight Friday night. Scattered rain showers remain possible on Saturday. Any showers that form may produce gusty, erratic winds that can send smoke in any direction. Mild conditions with light winds from the north or northwest are expected on Sunday, allowing smoke to be transported to the south or southeast of the fire. During the overnight hours on Saturday and Sunday night, light drainage winds may allow smoke to reach lower terrain. This may effect areas within the South Fork White River drainage. Light to Moderate smoke concentrations are possible in locations to the west of the fire, including the community of Buford.

Several prescribed fires are expected across southwestern parts of Colorado during the month of September. These fires could produce periods of visible smoke throughout the region. Moderate to perhaps heavy smoke will be possible at times, particularly during the early morning hours. Please click https://www.colorado.gov/cdphe/wood-smoke-and-health for more information on wood smoke and your health.

What if there is a wildfire or smoke in your area that is not reported above?

The focus of the Colorado Smoke Outlook is on large fires (e.g., greater than 100 acres in size). Nevertheless, smoke from smaller fires, prescribed fires, and/or smoke from new fires not yet known to CDPHE air quality meteorologists may cause locally heavy smoke. If there is smoke in your neighborhood, see the public health recommendations below.



Public health recommendations for areas affected by smoke: 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. Fine particulates may reach the Unhealthy category where smoke is heavy. Consider limiting outdoor activity when moderate to heavy smoke is present. People with heart or lung disease, older adults, and children should avoid prolonged or heavy exertion; everyone else should reduce prolonged or heavy exertion. 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.

For additional information about smoke, visit:
http://www.colorado.gov/airquality/wildfire.aspx

Colorado Department of Public Health & Environment/APCD/Technical Services Program
visit us at: http://www.colorado.gov/airquality - all data are preliminary