Weather Alert in Minnesota
Air Quality Alert issued July 25 at 2:02AM CDT by NWS La Crosse WI
AREAS AFFECTED: Wabasha; Dodge; Olmsted; Winona; Mower; Fillmore; Houston
DESCRIPTION: * WHAT...The Minnesota Pollution Control Agency has issued an Air Quality Alert for fine particles pollution. The Air Quality Index (AQI) is expected to reach the Orange or Unhealthy for Sensitive Groups category. * WHERE...Southern Minnesota. * WHEN...From 6 PM CDT Thursday until 11 PM CDT Friday. * IMPACTS...Sensitive groups, such as people with lung disease (including asthma), heart disease, and children and older adults, may experience health effects. * ADDITIONAL DETAILS...A band of heavy smoke from wildfires in Saskatchewan and Manitoba is moving south across central and northern Minnesota on Thursday. Smoke will reach southern Minnesota Thursday afternoon. Thursday's smoke model forecasts suggest smoke is likely to reach southeast Minnesota by Thursday evening. Therefore, the alert has been expanded to cover southeast Minnesota. Smoke will linger across the state until Friday afternoon, and then southerly winds are expected to push the smoke back to the north. Air quality should improve gradually from south to north beginning Friday afternoon, with improvement in fine particle levels below the alert threshold expected by the end of Friday.
INSTRUCTION: Sensitive groups, such as people with lung disease (including asthma), heart disease, and children and older adults, should limit prolonged or heavy exertion. Reduce or eliminate activities that contribute to air pollution, such as outdoor burning, and use of residential wood burning devices. Reduce vehicle trips and vehicle idling as much as possible. Keep windows closed overnight to prevent smoke from getting indoors.
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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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