Weather Alert in Idaho
Air Stagnation Advisory issued February 4 at 12:36PM MST until February 9 at 11:00AM MST by NWS Pocatello ID
AREAS AFFECTED: Lower Snake River Plain; Franklin/Eastern Oneida Region
DESCRIPTION: * WHAT...Poor air quality will continue. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants. * WHERE...Franklin/Eastern Oneida Region and Lower Snake River Plain. * WHEN...Until 11 AM MST Monday. * IMPACTS...Periods of air stagnation can lead to the buildup of pollutants near the surface.
INSTRUCTION: If possible, reduce or eliminate activities that contribute to air pollution, such as outdoor burning, and the use of residential wood burning devices. Reduce vehicle trips and vehicle idling as much as possible. Check with local agencies for possible restrictions in your area.
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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
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
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