Weather Alert in Idaho
Winter Weather Advisory issued February 15 at 12:17PM MST until February 17 at 5:00PM MST by NWS Missoula MT
AREAS AFFECTED: Western Lemhi County; Eastern Lemhi County
DESCRIPTION: * WHAT...Snow expected. There is a likelihood moderate winter weather impacts. Total snow accumulations of 3 to 6 inches across area mountain passes, with up to 1 inch in lower elevations such as Salmon. * WHERE...Highway 93 Lost Trail Pass to Gibbonsville, Salmon, Shoup, Bannock Pass, Highway 28 Tendoy to Lone Pine, Williams Creek Summit, and Lemhi Pass. * WHEN...From 2 AM to 5 PM MST Tuesday. * IMPACTS...For MODERATE winter weather impacts, expect disruptions to normal activities. Hazardous traveling conditions. Use extra caution while driving. Closures and disruptions to infrastructure may occur. The hazardous conditions could impact the Tuesday morning and evening commutes, especially over higher passes. * ADDITIONAL DETAILS...Falling temperatures and snow levels will bring snow to elevations below 3,000 feet Tuesday morning. The cold front will bring an elevated risk for snow squalls capable of producing bursts of heavy snow and gusty winds across mountain areas, leading to brief whiteout conditions.
INSTRUCTION: Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.
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North America Water Vapor (Moisture)
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Weather Topic: What are Cirrostratus Clouds?
Home - Education - Cloud Types - Cirrostratus Clouds
Next Topic: Cirrus Clouds
Cirrostratus clouds are high, thin clouds that form above
20,000 feet and are made mostly of ice crystals. They sometimes look like giant
feathers, horse tails, or curls of hair in the sky.
These clouds are pushed by the jet stream and can move at high speeds reaching
100 mph.
What do they indicate?
They indicate that a precipitation is likely within 24 hours.
Next Topic: Cirrus Clouds
Weather Topic: What is Condensation?
Home - Education - Precipitation - Condensation
Next Topic: Contrails
Condensation is the process which creates clouds, and therefore
it is a crucial process in the water cycle.
Condensation is the change of matter from a state of gas into a state of liquid,
and it happens because water molecules release heat into the atmosphere and
become organized into a more closely packed structure, what we might see as
water droplets.
Water is always present in the air around us as a vapor, but it's too small for
us to see. When water undergoes the process of condensation it becomes organized
into visible water droplets. You've probably seen condensation happen before on the
surface of a cold drink!
Next Topic: Contrails
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