Weather Alert in Alaska
Flood Warning issued August 26 at 10:30PM AKDT until August 27 at 11:00PM AKDT by NWS Fairbanks AK
AREAS AFFECTED: Central Brooks Range; South Slopes Of The Central Brooks Range; Upper Koyukuk Valley; Dalton Highway Summits
DESCRIPTION: * WHAT...Flooding caused by excessive rainfall continues. * WHERE...Including the following areas, Central Brooks Range, Dalton Highway Summits, South Slopes Of The Central Brooks Range and Upper Koyukuk Valley. * WHEN...Until 1100 PM AKDT Wednesday. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS... - At 1018 PM AKDT, River gauge reports indicate rises in water levels from heavy rain across the warned area. Flooding is ongoing. Between 4 and 6 inches of rain have fallen. Additional rainfall amounts of up to an inch are possible. - There is controlled traffic along the Dalton Highway between mile markers 140 and 240 due to road damage from flooding earlier today. Numerous landslides have also been reported by the public near Wiseman along steep slopes in the area. - For Slate Creek at Coldfoot: At 10:23pm the stage was 18.9 feet and receding. Flood Stage is 18.7 feet. - Http://www.weather.gov/aprfc
INSTRUCTION: Stay tuned to further developments by listening to your local radio, television, or NOAA Weather Radio for further information.
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Weather Topic: What is Sleet?
Home - Education - Precipitation - Sleet
Next Topic: Snow
Sleet is a form of precipitation in which small ice pellets are the primary
components. These ice pellets are smaller and more translucent than hailstones,
and harder than graupel. Sleet is caused by specific atmospheric conditions and
therefore typically doesn't last for extended periods of time.
The condition which leads to sleet formation requires a warmer body of air to be
wedged in between two sub-freezing bodies of air. When snow falls through a warmer
layer of air it melts, and as it falls through the next sub-freezing body of air
it freezes again, forming ice pellets known as sleet. In some cases, water
droplets don't have time to freeze before reaching the surface and the result is
freezing rain.
Next Topic: Snow
Weather Topic: What are Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds
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