Weather Alert in Colorado

Recent Locations: Cascade, CO  

Air Quality Alert issued August 3 at 4:10PM MDT by NWS Grand Junction CO

AREAS AFFECTED: Garfield, CO; Rio Blanco, CO; Eagle, CO

DESCRIPTION: The Colorado Department of Public Health and Environment has issued the following... WHAT...Air Quality Health Advisory for Wildfire Smoke. WHERE...Central and eastern Rio Blanco, eastern Garfield, and western Eagle Counties. Locations include, but are not limited to Meeker, Carbondale, El Jebel, and along Highway 82 south of Glenwood Springs. WHEN...400 PM Sunday August 03 to 900 AM Monday August 04 IMPACTS...Smoke from the Grease fire and the Elk fire in central and southeastern Rio Blanco County, and the Coulter Creek fire in southeastern Garfield County will produce areas of moderate to heavy smoke Sunday evening and Monday morning. The greatest impacts are expected in areas in the immediate vicinity of these fires including mainly rural areas of Rio Blanco County south and southeast of Meeker; and in southeastern portions of Garfield County in the roaring Fork Valley along Highway 82 near Carbondale and El Jebel; south of Glenwood Springs. Additional smoke impacts may be experienced across the advisory area due to transport of smoke on Sunday and Monday. 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 older adults. 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.

INSTRUCTION: N/A

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Weather Topic: What are Wall Clouds?

Home - Education - Cloud Types - Wall Clouds

Wall Clouds Next Topic: Altocumulus Clouds

A wall cloud forms underneath the base of a cumulonimbus cloud, and can be a hotbed for deadly tornadoes.

Wall clouds are formed by air flowing into the cumulonimbus clouds, which can result in the wall cloud descending from the base of the cumulonimbus cloud, or rising fractus clouds which join to the base of the storm cloud as the wall cloud takes shape.

Wall clouds can be very large, and in the Northern Hemisphere they generally form at the southern edge of cumulonimbus clouds.

Next Topic: Altocumulus Clouds

Weather Topic: What are Altostratus Clouds?

Home - Education - Cloud Types - Altostratus Clouds

Altostratus Clouds Next Topic: Cirrocumulus Clouds

Altostratus clouds form at mid to high-level altitudes (between 2 and 7 km) and are created by a warm, stable air mass which causes water vapor to condense as it rise through the atmosphere. Usually altostratus clouds are featureless sheets characterized by a uniform color.

In some cases, wind punching through the cloud formation may give it a waved appearance, called altostratus undulatus. Altostratus clouds are commonly seen with other cloud formations accompanying them.

Next Topic: Cirrocumulus Clouds

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