Weather Alert in Montana
Avalanche Watch issued February 22 at 6:19PM MST by NWS Missoula MT
AREAS AFFECTED: West Glacier Region
DESCRIPTION: AVAMSO The following message is transmitted at the request of the Flathead Avalanche Center Hungry Horse MT ...The Flathead Avalanche Center Hungry Horse MT has issued a Backcountry Avalanche Watch... * WHAT...An incoming storm may create exceptionally dangerous conditions. * WHERE...Flathead Range, Whitefish Range, Swan Range, and Apgar Ranges, and the Lake McDonald Valley and Marias Pass regions in Glacier National Park. * WHEN...In effect until 12 PM MST Monday * IMPACTS...If snow and strong winds arrive Monday as forecast, avalanche danger may rise to High (Level 4 of 5). New and drifted snow will overload a snowpack already producing large and very large avalanches. Many slides are being triggered from long distances away in lower-angle terrain below, near, and above steep slopes. The likelihood of natural and human- triggered avalanches will increase.
INSTRUCTION: Exceptionally dangerous avalanche conditions may develop. Travel in avalanche terrain is not recommended. Avalanches may run long distances and can run into mature forests, valley floors, or flat terrain. Consult http://www.flatheadavalanche.org for more detailed information. Similar avalanche danger may exist at locations outside the coverage area of any Avalanche Center.
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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
Weather Topic: What are Cumulonimbus Clouds?
Home - Education - Cloud Types - Cumulonimbus Clouds
Next Topic: Cumulus Clouds
The final form taken by a growing cumulus cloud is the
cumulonimbus cloud, which is very tall and dense.
The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although
most commonly they stop growing at an altitude of 6 km.
Even small cumulonimbus clouds appear very large in comparison to other cloud types.
They can signal the approach of stormy weather, such as thunderstorms or blizzards.
Next Topic: Cumulus Clouds
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