Weather Alert in Idaho
Air Quality Alert issued August 25 at 11:15AM PDT by NWS Spokane WA
AREAS AFFECTED: Lewis, ID; Nez Perce, ID
DESCRIPTION: An Air Quality Alert has been issued by the following agencies: Idaho Department of Environmental Quality in Lewiston Nez Perce Tribe * WHAT...Air Quality Advisory due to smoke from wildfires. Air Quality Index is forecast to be Unhealthy for Sensitive Groups. * WHERE...Latah, Lewis and Nez Perce Counties, and the Nez Perce Reservation. * WHEN...Until 1100 AM PDT Wednesday morning August 27th for Latah, Nez Perce and Lewis Counties, and until 1100 AM PDT Thursday morning August 28th for the Nez Perce Tribe. * IMPACTS...Members of sensitive groups may experience health effects. 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: Air pollutants can cause breathing difficulties for children, the elderly, as well as persons with respiratory problems. Those individuals who are sensitive to increased particulate matter or smoke are encouraged to avoid prolonged or strenuous outdoor activity during this advisory. Open burning is prohibited by air quality rules. It is also recommended that all other individuals limit prolonged or strenuous activity outdoors. 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 Idaho DEQ Lewiston Regional Office - (208)-799-4370
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Weather Topic: What is Rain?
Home - Education - Precipitation - 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
Weather Topic: What is Sleet?
Home - Education - Precipitation - Sleet
Next Topic: Snow
Sleet is a form of precipitation in which small ice pellets are the primary
components. These ice pellets are smaller and more translucent than hailstones,
and harder than graupel. Sleet is caused by specific atmospheric conditions and
therefore typically doesn't last for extended periods of time.
The condition which leads to sleet formation requires a warmer body of air to be
wedged in between two sub-freezing bodies of air. When snow falls through a warmer
layer of air it melts, and as it falls through the next sub-freezing body of air
it freezes again, forming ice pellets known as sleet. In some cases, water
droplets don't have time to freeze before reaching the surface and the result is
freezing rain.
Next Topic: Snow
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