Weather Alert in Alaska
Flood Watch issued September 2 at 7:41AM AKDT until September 7 at 10:00AM AKDT by NWS Anchorage AK
AREAS AFFECTED: NW Kenai Peninsula; Skilak Lake
DESCRIPTION: * WHAT...Flooding caused by the Skilak glacier-dammed lake release is possible. * WHERE...Skilak Lake and the Middle Kenai River near Skilak Lake and the Kenai River Downstream of Skilak Lake. * WHEN...Through Sunday morning. * IMPACTS...Kenai River level forecasts: Currently expecting the Kenai River to rise steadily at Skilak Lake outlet another 2 feet, cresting at moderate flood stage Friday or Saturday. At the Kenai Keys, expecting the Kenai River to rise another 2 to 2.5 feet, cresting just below moderate flood stage of 12 feet Friday or Saturday. Down river at Soldotna, expecting the Kenai River to rise steadily through week, cresting Saturday above bankfull levels near 12 feet. IMPACTS: Expect steady river level increases next 4 days on lower Kenai River. Flooding of low lying areas in the Kenai Keys area, boat dock issues and extended period of high water and bankfull conditions is likely. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Skilak Glacier Dam Lake is likely releasing. This combined with recent significant rain in the upper Kenai River basin will cause Kenai river levels to rise steadily from the outlet of Skilak Lake to the mouth through the end of this week. Some uncertainty exists due to recent rain as to when the Skilak Glacier Dam lake began releasing which could impact the crest timing and height. Planned aerial reconnaissance of Skilak Glacier Dam Lake will confirm whether a release has taken place and the extent of any release. - Http://www.weather.gov/safety/flood
INSTRUCTION: You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. 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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