Weather Alert in Alaska
Hydrologic Outlook issued August 10 at 7:07PM AKDT by NWS Juneau AK
AREAS AFFECTED: City and Borough of Juneau
DESCRIPTION: ESFAJK As of 6:50 PM the USGS web camera and laser gage in Suicide Basin have started to show indications of over-topping the ice dam with icebergs being pulled towards the overflow channel and very little new water rise. This means the basin is at full capacity and in the past it has taken up to 6 days for the outburst flooding event to begin. The water level in the basin will slowly fall as the overflow channel erodes. A faster drop in water levels in the basin along with a rise on Mendenhall Lake will indicate a sub-glacier release and our office will issue a Flood Warning. From that point, the outburst flooding event would take about 48 hours to peak. Now is the time to finish up the flood preparation/planning and get those plans "SET" so they can be put into action, and "GO" when a Flood Warning is issued. Check back regularly for updates on this evolving situation. This product will be updated by 7 AM Monday or sooner as needed.
INSTRUCTION: N/A
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Weather Topic: What are Cumulus Clouds?
Home - Education - Cloud Types - Cumulus Clouds
Next Topic: Drizzle
Cumulus clouds are fluffy and textured with rounded tops, and
may have flat bottoms. The border of a cumulus cloud
is clearly defined, and can have the appearance of cotton or cauliflower.
Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall,
becoming cumulus congestus and possibly the even taller cumulonimbus clouds.
When cumulus clouds become taller, they have a greater chance of producing precipitation.
Next Topic: Drizzle
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
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