Weather Alert in Colorado

Recent Locations: Denver, CO  
Current Alerts for Denver, CO: Air Quality Alert

Air Quality Alert issued July 11 at 4:10PM MDT by NWS Pueblo CO

AREAS AFFECTED: Rio Grande, CO; Conejos, CO; Mineral, CO; Saguache, CO

DESCRIPTION: The Colorado Department of Public Health and Environment has issued the following... WHAT...Air Quality Health Advisory for Wildfire Smoke. WHERE...Saguache, San Juan, Hinsdale, Mineral, Archuleta, Mesa, Delta, Gunnison, Montrose, Ouray, San Miguel, Dolores, Montezuma, La Plata, Rio Grande and Conejos Counties. Locations include, but are not limited to Saguache, Silverton, Lake City, Creede, Pagosa Springs, Delta, Gunnison, Montrose, Nucla, Ouray, Telluride, Dove Creek, Cortez, Durango, Hermosa, Honeyville, Rockwood, Del Norte, South Fork and Conejos. WHEN...900 AM Friday July 11 to 900 AM Saturday July 12 IMPACTS...Multiple wildfires across the region will produce moderate to heavy smoke through at least early Saturday morning. 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 Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

Next Topic: Precipitation

Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

Rain Next Topic: Shelf Clouds

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Shelf Clouds

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