Weather Alert in Idaho
Air Quality Alert issued August 22 at 3:37PM MDT by NWS Missoula MT
AREAS AFFECTED: Clearwater, ID; Idaho, ID
DESCRIPTION: An Air Quality Alert has been issued by the following agencies: Idaho Department of Environmental Quality in Lewiston Nez Perce Tribe ERWM Air Quality Program * WHAT...Air Quality Advisory due to smoke from wildfires. Air Quality Index is forecast to be Unhealthy. * WHERE...Clearwater and Idaho Counties and the Nez Perce Reservation. * WHEN...Until Monday morning, August 25th. * IMPACTS...Those who experience health effects from smoke include children under 18, elders, pregnant women, people with asthma or have difficulty breathing, diabetes, heart problems or otherwise compromised health, and people who have high exposure (those who work, exercise, or spend extensive time outdoors).
INSTRUCTION: Under the most severe pollution level, sensitive groups should avoid outdoor exposure and limit indoor activities, and everyone should restrict their outdoor activities. Idaho Department of Health and Welfare https://healthandwelfare.idaho.gov/health-wellness/environmental- health/idaho-wildfire-and-smoke-information Idaho Smoke Information Hotline: 1-800-345-1007 Lewiston Regional Office: (208) 799-4370.
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Weather Topic: What are Fractus Clouds?
Home - Education - Cloud Types - Fractus Clouds
Next Topic: Freezing Rain
A fractus cloud (scud) is a fragmented, tattered cloud which has
likely been sheared off of another cloud. They are accessory clouds, meaning they
develop from parent clouds, and are named in a way which describes the original
cloud which contained them.
Fractus clouds which have originated from cumulus clouds are referred to as
cumulus fractus, while fractus clouds which have originated from stratus clouds
are referred to as stratus fractus. Under certain conditions a fractus cloud might
merge with another cloud, or develop into a cumulus cloud, but usually a
fractus cloud seen by itself will dissipate rapidly.
They are often observed on the leading and trailing edges of storm clouds,
and are a display of wind activity.
Next Topic: Freezing Rain
Weather Topic: What is Graupel?
Home - Education - Precipitation - Graupel
Next Topic: Hail
Graupel is a form of precipitation that is created by atmospheric conditions
which cause supercooled water droplets to contact snow crystals and freeze to
their surface.
Sometimes known as soft hail or snow pellets, graupel is delicate and easily
destroyed by touch. Whereas hail usually falls during severe weather, graupel
doesn't require such conditions to form, and can form in mild precipitation
similar to situations which produce snowfall.
Next Topic: Hail
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