Weather Alert in Michigan
Air Quality Alert issued August 2 at 11:22AM EDT by NWS Grand Rapids MI
AREAS AFFECTED: Mason; Lake; Osceola; Clare; Oceana; Newaygo; Mecosta; Isabella; Muskegon; Montcalm; Gratiot; Ottawa; Kent; Ionia; Clinton; Allegan; Barry; Eaton; Ingham; Van Buren; Kalamazoo; Calhoun; Jackson
DESCRIPTION: Air Quality Advisory through Sunday August 3, 2025 The Michigan Department of Environment, Great Lakes, and Energy (EGLE) has issued an Air Quality Advisory for elevated levels of fine particulate (PM2.5) across the state of Michigan. Pollutants are expected to be in the Unhealthy for Sensitive Groups (USG, Orange AQI) range with some areas reaching Unhealthy (Red AQI) range. The Air Quality Advisory includes all Michigan counties Canadian wildfire smoke will re-enter Michigan, statewide, Saturday afternoon and persist through at least Sunday. A High-pressure system sitting in the Midwest will continue to funnel wildfire smoke into the state and cause little to no dispersion due to stagnant conditions. It is recommended that, when possible, you avoid strenuous outdoor activities, especially those with heart disease and respiratory diseases like asthma. Monitor for symptoms such as wheezing, coughing, chest tightness, dizziness, or burning in nose, throat, and eyes. Reduce or eliminate activities that contribute to air pollution, such as: outdoor burning; use of residential wood burning devices. Tips for households: Keep windows closed overnight to prevent smoke from getting indoors and, if possible, run central air conditioning with MERV-13 or higher rated filters. For up-to-date air quality data nationally visit EPAs Air Now site: https://www.airnow.gov/
INSTRUCTION: N/A
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Weather Topic: What are Nimbostratus Clouds?
Home - Education - Cloud Types - 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
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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