Weather Alert in Alaska
Flood Advisory issued August 29 at 1:11PM AKDT until August 30 at 1:15AM AKDT by NWS Anchorage AK
AREAS AFFECTED: Cordova
DESCRIPTION: * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Eyak Lake and river near Cordova. * WHEN...Until 115 AM AKDT Saturday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Some low-water crossings may become impassable. * ADDITIONAL DETAILS... - At 109 PM AKDT, Heavy rain over the past 12 hours has resulted in rises in water levels across the advisory area. Minor flooding is ongoing or expected to begin shortly, especially near Eyak Lake and Eyak River.
INSTRUCTION: Stay tuned to further developments by listening to your local radio, television, or NOAA Weather Radio for further information. Be aware of your surroundings and do not drive on flooded roads.
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North America Water Vapor (Moisture)
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Weather Topic: What is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
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
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