Weather Alert in Minnesota
Air Quality Alert issued May 11 at 5:43PM CDT by NWS Twin Cities/Chanhassen MN
AREAS AFFECTED: Douglas; Todd; Morrison; Stevens; Pope; Stearns; Benton; Sherburne; Lac Qui Parle; Swift; Chippewa; Kandiyohi; Meeker; Wright; Hennepin; Anoka; Ramsey; Washington; Yellow Medicine; Renville; McLeod; Sibley; Carver; Scott; Dakota; Redwood; Brown; Nicollet; Le Sueur; Rice; Watonwan; Blue Earth; Waseca; Steele; Martin; Faribault; Freeborn
DESCRIPTION: * WHAT...The Minnesota Pollution Control Agency has issued an Air Quality Alert for ozone pollution. The Air Quality Index (AQI) is expected to reach the Orange or Unhealthy for Sensitive Groups category. * WHERE...Central Minnesota. * WHEN...From noon CDT to 9 PM CDT Monday. * IMPACTS...Sensitive groups, such as people with lung disease (including asthma), heart disease, children and older adults, and people who are active outdoors, may experience health effects. * ADDITIONAL DETAILS...Ground-level ozone is expected to be high during the afternoon hours on Monday across western and central Minnesota. Mostly sunny skies, warm temperatures, and low humidity will create an environment favorable for two types of pollutants (Volatile Organic Compounds and Nitrogen Oxides) to react in the air to produce ground-level ozone. Ozone will be highest during the afternoon and early evening hours when sunshine is most abundant, and temperatures are highest. Ozone will be low in the morning, late evening, and overnight. Another alert is possible on Tuesday afternoon as sunny skies and heat persist.
INSTRUCTION: Sensitive groups, such as people with lung disease (including asthma), heart disease, children and older adults, and people who are active outdoors, should limit prolonged or heavy outdoor 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.
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Weather Topic: What is Fog?
Home - Education - Cloud Types - Fog
Next Topic: Fractus Clouds
Fog is technically a type of stratus cloud, which lies along the
ground and obscures visibility.
It is usually created when humidity in the air condenses into tiny water droplets.
Because of this, some places are more prone to foggy weather, such as regions
close to a body of water.
Fog is similar to mist; both are the appearance of water droplets suspended in
the air, but fog is the term applied to the condition when visibility is less than 1 km.
Next Topic: Fractus Clouds
Weather Topic: What is Freezing Rain?
Home - Education - Precipitation - Freezing Rain
Next Topic: Graupel
Freezing rain is a condition where precipitation which has fallen in the form of
water droplets reaches temperatures which are below freezing and freezes upon
coming into contact
with surface objects. The result of this precipitation is a glaze of ice which
can be damaging to plants and man-made structures. A severe onset of freezing
rain which results in a very thick glaze of ice is known as an ice storm.
Next Topic: Graupel
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