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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Weather Topic: What are Hole Punch Clouds?
Home - Education - Cloud Types - Hole Punch Clouds
Next Topic: Mammatus Clouds
A hole punch cloud is an unusual occurrence when a disk-shaped
hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.
When part of the cloud forms ice crystals, water droplets in the surrounding area
of the cloud evaporate. The effect of this process produces a large elliptical
gap in the cloud. The hole punch cloud formation is rare, but it is not specific
to any geographic area.
Other names which have been used to describe this phenomena include fallstreak hole,
skypunch, and cloud hole.
Next Topic: Mammatus Clouds
Weather Topic: What are Nimbostratus Clouds?
Home - Education - Cloud Types - Nimbostratus Clouds
Next Topic: Precipitation
A nimbostratus cloud is similar to a stratus cloud in its formless,
smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud,
because it is thicker.
Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat
of moderate to heavy precipitation. In some cases, the precipitation may evaporate
before reaching the ground, a phenomenon known as virga.
Next Topic: Precipitation
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