Weather Alert in Alaska
Flood Warning issued August 26 at 11:05AM 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 is expected. * 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 1059 AM AKDT, River gauge reports indicate rises in water levels from heavy rain across the warned area. Flooding is ongoing or expected to begin shortly. Between 4 and 6 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible. - Local reports of up to 18 inches of water is currently covering the road to Wiseman making that route impassable. In addition the stretch of the Dalton Highway from mile markers 140 to 240 have had numerous reports of water on the roadway or locations where the road is beginning to wash out. Numerous landslides have also been reported by the public near Wiseman along steep slopes in the area. - For Slate Creek at Coldfoot: At 10:15am the stage was 20.3 feet. Flood Stage is 18.7 feet. Forecast: A crest around 19.4 feet is expected around 4:00pm Tuesday. - 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 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
Weather Topic: What is Graupel?
Home - Education - Precipitation - Graupel
Next Topic: Hail
Graupel is a form of precipitation that is created by atmospheric conditions
which cause supercooled water droplets to contact snow crystals and freeze to
their surface.
Sometimes known as soft hail or snow pellets, graupel is delicate and easily
destroyed by touch. Whereas hail usually falls during severe weather, graupel
doesn't require such conditions to form, and can form in mild precipitation
similar to situations which produce snowfall.
Next Topic: Hail
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