Weather Alert in Colorado
Air Quality Alert issued July 17 at 9:10AM MDT by NWS Grand Junction CO
AREAS AFFECTED: Delta, CO; Mesa, CO; Montrose, CO
DESCRIPTION: The Colorado Department of Public Health and Environment has issued the following... WHAT...Air Quality Health Advisory for Wildfire Smoke. WHERE...Mesa, Delta and Montrose Counties. Locations include, but are not limited to Grand Junction, Delta, Montrose and Nucla. WHEN...900 AM Thursday July 17 to 900 AM Friday July 18 IMPACTS...Multiple wildfires will produce periods of moderate to heavy smoke across the advisory area through early Friday morning. The heaviest smoke impacts are expected in locations near the fires. Thunderstorms are possible on Thursday, which may produce gusty, erratic winds that can send smoke in any direction. HEALTH INFORMATION...Public Health Recommendations: Increasing likelihood of respiratory symptoms in sensitive individuals, aggravation of heart or lung disease and premature mortality in people with cardiopulmonary disease and older adults. People with heart or lung disease, older adults, and children should reduce prolonged or heavy exertion.
INSTRUCTION: N/A
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Weather Topic: What is Hail?
Home - Education - Precipitation - Hail
Next Topic: Hole Punch Clouds
Hail is a form of precipitation which is recognized by large solid balls or
clumps of ice. Hail is created by thunderstorm clouds with strong updrafts of wind.
As the hailstones remain in the updraft, ice is deposited onto them until their
weight becomes heavy enough for them to fall to the earth's surface.
Hail storms can cause significant damage to crops, aircrafts, and man-made structures,
despite the fact that the duration is usually less than ten minutes.
Next Topic: Hole Punch Clouds
Weather Topic: What are Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Nimbostratus Clouds
A mammatus cloud is a cloud with a unique feature which resembles
a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly
in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form
under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds
warn that severe weather is close.
Next Topic: Nimbostratus Clouds
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