Weather Alert in Michigan
Air Quality Alert issued July 15 at 1:26PM EDT by NWS Northern Indiana
AREAS AFFECTED: Cass; Northern Berrien; Southern Berrien
DESCRIPTION: The Michigan Department of Environment, Great Lakes, and Energy (EGLE) has declared an Air Quality Advisory for Tuesday July 15 and Wednesday July 16, for elevated levels of ozone and fine particulate (PM2.5) in parts of southwest Michigan. Pollutants within those areas are expected to be in the Unhealthy for Sensitive Groups (USG, Orange AQI) range. The Air Quality Advisory is in effect for the following counties in southwest Michigan... Berrien and Cass Wildfire smoke may trigger elevated particulates and ozone levels. It is recommended that, when possible, you stay indoors and keep time outdoors short and avoid strenuous activities, especially those with respiratory diseases such as asthma. Recommendations to reduce pollution and potential health effects: PM 2.5: * Reduce or eliminate outdoor burning, and the 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. Ozone: * Using gas-powered lawn equipment; * Driving less or delaying and/or combining errands; * Refueling less or topping off when refueling. For up-to-date air quality data for Michigan visit the MiAir site: https://air-egle.hub.arcgis.com/ For up-to-date air quality data nationally visit EPA's Air Now site: https://www.airnow.gov/ For further health information, please see MDHHS's Wildfire Smoke and You Health site: https://www.michigan.gov/mdhhs/safety-injury-prev/environmental- health/your-health-and-wildfire-smoke
INSTRUCTION: N/A
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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
Weather Topic: What are Hole Punch Clouds?
Home - Education - Cloud Types - Hole Punch Clouds
Next Topic: Mammatus Clouds
A hole punch cloud is an unusual occurrence when a disk-shaped
hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.
When part of the cloud forms ice crystals, water droplets in the surrounding area
of the cloud evaporate. The effect of this process produces a large elliptical
gap in the cloud. The hole punch cloud formation is rare, but it is not specific
to any geographic area.
Other names which have been used to describe this phenomena include fallstreak hole,
skypunch, and cloud hole.
Next Topic: Mammatus Clouds
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