Weather Alert in Montana

Recent Locations: Springfield, TN   New Point, VA   Emigrant, MT  

Special Weather Statement issued August 30 at 6:59AM MDT by NWS Great Falls MT

AREAS AFFECTED: Northern High Plains; Eastern Glacier, Western Toole, and Central Pondera; Eastern Toole and Liberty; Southern High Plains; Eastern Pondera and Eastern Teton; Cascade County below 5000ft; Gates of the Mountains

DESCRIPTION: Patchy dense fog will continue through 9 and 10 AM this morning for areas east of the Rocky Mountain Front to the I-15 corridor from Craig to Sweet Grass. Travelers should be prepared for visibilities as low as a quarter of mile at times. Be prepared for changing visibility over short distances. Slow down, allow extra spacing between vehicles, and turn on your low beam headlights when driving through fog.

INSTRUCTION: N/A

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Weather Topic: What is Fog?

Home - Education - Cloud Types - Fog

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

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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