Weather Alert in Alaska
Special Weather Statement issued August 28 at 10:58PM AKDT by NWS Anchorage AK
AREAS AFFECTED: Northern Copper Valley; Western Copper Valley; Central Copper Valley; Ernestine; Southern Copper Valley
DESCRIPTION: The strongest wind gusts will range between 35 and 50 mph, with the strongest gusts focused along the Copper River Valley north of Kenny Lake and along the Richardson and Glenn Highways north and west of Glennallen. Persistent gusty winds tonight will continue into Friday morning as the front pushes to the east. Winds are then expected to diminish in intensity by Friday evening. People are urged to secure loose objects that could be blown around by the strong winds and use caution while traveling. Winds could coincide with periods of moderate rain, potentially making driving difficult at times. Trees are still fully leafed and will be unusually vulnerable to damage from the strong winds. Localized power outages will be possible due the potential for strong winds to bring down tree branches onto power lines.
INSTRUCTION: N/A
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Weather Topic: What is Evaporation?
Home - Education - Precipitation - Evaporation
Next Topic: Fog
Evaporation is the process which returns water from the earth
back to the atmosphere, and is another crucial process in the water cycle.
Evaporation is the transformation of liquid into gas, and it happens because
molecules are excited by the application of energy and turn into vapor.
In order for water to evaporate it has to be on the surface of a body of water.
Next Topic: Fog
Weather Topic: What are Fractus Clouds?
Home - Education - Cloud Types - Fractus Clouds
Next Topic: Freezing Rain
A fractus cloud (scud) is a fragmented, tattered cloud which has
likely been sheared off of another cloud. They are accessory clouds, meaning they
develop from parent clouds, and are named in a way which describes the original
cloud which contained them.
Fractus clouds which have originated from cumulus clouds are referred to as
cumulus fractus, while fractus clouds which have originated from stratus clouds
are referred to as stratus fractus. Under certain conditions a fractus cloud might
merge with another cloud, or develop into a cumulus cloud, but usually a
fractus cloud seen by itself will dissipate rapidly.
They are often observed on the leading and trailing edges of storm clouds,
and are a display of wind activity.
Next Topic: Freezing Rain
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