Weather Alert in Alaska
Hydrologic Outlook issued August 28 at 2:02PM AKDT by NWS Anchorage AK
AREAS AFFECTED: Anchorage; Anchorage Hillside / Eagle River; East Turnagain Arm; Portage; Lower Matanuska Valley; Hatcher Pass; Sutton / Upper Matanuska Valley; Eureka / Tahneta Pass; Southern Kachemak Bay; SW Kenai Peninsula; NW Kenai Peninsula; Skilak Lake; Southern Kenai Mtns; Interior Kenai Peninsula; Turnagain Pass; West Prince William Sound & Whittier; Tyonek; Valdez; Thompson Pass; Cordova; Western Susitna Valley; Southern Susitna Valley; Central Susitna Valley; Northern Susitna Valley
DESCRIPTION: ESFAFC Rainfall * Eastern Kenai Peninsula and Prince William Sound: 1 to 3 inches of rain has already fallen as of Thursday afternoon with another 1 to 2 inches possible through Friday. Locally higher amounts are possible in higher terrain. * Mat-Su: 1 to 3 inches of rain have fallen as of Thursday afternoon with another 1 to 2 inches of rain expected through Friday. The highest amounts will be across the northern Susitna Valley and across the higher terrain of the Talkeetnas. The Matanuska Valley will generally receive 1 to 2 inches of total rainfall by the end of the event, with the higher totals occuring towards Sutton and Chickaloon. * Western Kenai Peninsula and Anchorage: Half an inch to 1.5 inches has already fallen across much of this area as of Thursday afternoon, with upwards of 3 inches in Anchor Point. Another half to 1 inch is possible through Friday. Hydrologic Concerns * Sharp rises have already been noted on many area streams and rivers. Many smaller streams will crest Thursday night into Friday while larger rivers or downstream points may crest Friday and Saturday. Higher than normal water levels may continue through Labor Day Weekend into next week. * Many lower locations along rivers such as gravel bars and other spots popular for camping and recreating are likely to become inundated with water. * Heavy rain may result in localized ponding in low-lying areas and locations with poor drainage. Next Steps * Residents along area streams as well as river users and recreationists should anticipate higher than normal water levels and are advised to monitor weather and river forecasts. * Reports on river conditions may be sent to the river forecast center by calling 1-800-847-1739.
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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.
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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
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