Weather Alert in Alaska
High Wind Watch issued February 18 at 10:57AM AKST until February 21 at 6:00AM AKST by NWS Anchorage AK
AREAS AFFECTED: Thompson Pass
DESCRIPTION: * WHAT...North winds 45 to 60 mph with gusts up to 75 mph possible. Wind chill readings dropping as low as 40 below zero Friday night. * WHERE...Thompson Pass. * WHEN...From late Thursday night through late Friday night. * IMPACTS...Travel could be difficult. The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes. Blowing snow due to high winds may reduce visibility to as low as one half mile at times Thursday night through Friday morning. * ADDITIONAL DETAILS...Winds will strengthen Thursday through Thursday night, then peak during the day Friday. There is potential for a second peak Friday night through early Saturday.
INSTRUCTION: A high wind watch means there is potential for a hazardous high wind event. Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds.
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Weather Topic: What are Stratus Clouds?
Home - Education - Cloud Types - Stratus Clouds
Next Topic: Wall Clouds
Stratus clouds are similar to altostratus clouds, but form at a
lower altitude and are identified by their fog-like appearance, lacking the
distinguishing features of most clouds.
Stratus clouds are wider than most clouds, and their base has a smooth, uniform
look which is lighter in color than a nimbostratus cloud.
The presence of a stratus cloud indicates the possibility of minor precipitation,
such as drizzle, but heavier precipitation does not typically arrive in the form
of a stratus cloud.
Next Topic: Wall Clouds
Weather Topic: What are Altocumulus Clouds?
Home - Education - Cloud Types - Altocumulus Clouds
Next Topic: Altostratus Clouds
Similar to cirrocumulus clouds, altocumulus clouds are
characterized by cloud patches. They are distinguished by larger cloudlets
than cirrocumulus clouds but are still smaller than stratocumulus clouds.
Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km)
and may resemble, at times, the shape of a flying saucer.
These uncommon formations, called altocumulus lenticularis, are created by uplift
in the atmosphere and are most often seen in close proximity to mountains.
Next Topic: Altostratus Clouds
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