Weather Alert in Michigan
Air Quality Alert issued May 30 at 10:44AM EDT by NWS Gaylord MI
AREAS AFFECTED: Emmet; Cheboygan; Presque Isle; Leelanau; Antrim; Otsego; Montmorency; Alpena; Benzie; Grand Traverse; Kalkaska; Crawford; Oscoda; Alcona; Manistee; Wexford; Missaukee; Roscommon; Ogemaw; Iosco; Gladwin; Arenac; Western Chippewa; Central Chippewa; Southeast Chippewa; Western Mackinac; Eastern Mackinac; Mackinac Island/Bois Blanc Island; Beaver Island and surrounding islands; Charlevoix
DESCRIPTION: The Michigan Department of Environmental Quality has issued an Air Quality Advisory for Friday May 30, for elevated levels of fine particulates (PM2.5). Pollutants are expected to be in the Unhealthy for Sensitive Groups range. The alert is in effect for the following Michigan Counties, Roscommon, Charlevoix, Missaukee, Wexford, Beaver Island and surrounding islands, Manistee, Mackinac Island/Bois Blanc Island, Emmet, Iosco, Ogemaw, Presque Isle, Cheboygan, Alcona, Eastern Mackinac, Western Mackinac, Montmorency, Otsego, Southeast Chippewa, Antrim, Central Chippewa, Leelanau, Arenac, Western Chippewa, Kalkaska, Grand Traverse, Benzie, Alpena, Oscoda, Crawford, and Gladwin. It is recommended that, when possible, you avoid strenuous outdoor activities, especially those with heart disease and respiratory diseases such as 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, and use of residential wood burning devices. 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 further information, please see EPA's Air Now site for up-to- date air quality data at https://www.airnow.gov For further health information, please see MDHHS' Wildfire Smoke and Your Health site at https://www.michigan.gov/mdhhs/safety-injury- prev/environmental-health/your-health-and-wildfire-smoke.
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Weather Topic: What are Shelf Clouds?
Home - Education - Cloud Types - Shelf Clouds
Next Topic: Sleet
A shelf cloud is similar to a wall cloud, but forms at the front
of a storm cloud, instead of at the rear, where wall clouds form.
A shelf cloud is caused by a series of events set into motion by the advancing
storm; first, cool air settles along the ground where precipitation has just fallen.
As the cool air is brought in, the warmer air is displaced, and rises above it,
because it is less dense. When the warmer air reaches the bottom of the storm cloud,
it begins to cool again, and the resulting condensation is a visible shelf cloud.
Next Topic: Sleet
Weather Topic: What is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
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