Weather Alert in Alaska
Flood Advisory issued August 28 at 11:49PM AKDT until August 29 at 12:00PM AKDT by NWS Anchorage AK
AREAS AFFECTED: Southern Kenai Mtns; Interior Kenai Peninsula
DESCRIPTION: * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Seward and Bear Creek Neighborhoods. * WHEN...Until noon AKDT Friday. * IMPACTS...Area creeks will be running high and transporting gravel. Area creeks include Bear, Lost, Sometime, Clear, Box Canyon, Sawmill And 4Th Of July Creeks. Minor flooding in low-lying and poor drainage areas. River or stream flows are elevated. Ponding of water in urban or other areas is occurring or is imminent. * ADDITIONAL DETAILS... - At 1142 PM AKDT, river gauge reports indicate rises in water levels from heavy rain across the advisory area. This will cause minor flooding from overflow of poor drainage areas, especially near Seward and the Bear Creek Neighborhoods. Between 1 and 1.5 inches of rain have fallen over the past six hours. Additional rainfall amounts of 0.5 to 1 inch are possible through early Friday morning. - For Resurrection River at Exit Glacier Bridge: At 11:00pm the stage was 16.8 feet. Flood Stage is 17.5 feet. Forecast: A crest around 18.1 feet is expected around 10:00am Friday. - Http://www.weather.gov/safety/flood - If you live near or along the Resurrection River or other area creeks and streams stay alert and be prepared to take action. - Storm drains should be kept clear of debris as much as possible.
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 Rain?
Home - Education - Precipitation - Rain
Next Topic: Shelf Clouds
Precipitation in the form of water droplets is called rain.
Rain generally has a tendency to fall with less intensity over a greater period
of time, and when rainfall is more severe it is usually less sustained.
Rain is the most common form of precipitation and happens with greater frequency
depending on the season and regional influences. Cities have been shown to have
an observable effect on rainfall, due to an effect called the urban heat island.
Compared to upwind, monthly rainfall between twenty and forty miles downwind of
cities is 30% greater.
Next Topic: Shelf Clouds
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
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