Weather Alert in Alaska
Flood Advisory issued September 3 at 4:59AM AKDT until September 4 at 9:15AM AKDT by NWS Anchorage AK
AREAS AFFECTED: Western Susitna Valley; Central Susitna Valley; Northern Susitna Valley
DESCRIPTION: * WHAT...Flooding caused by excessive rainfall continues. * WHERE...Northern Susitna Valley in the Petersville area * WHEN...Until 915 AM AKDT Thursday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Rises in small streams. Some low-water crossings may become impassable. River or stream flows are elevated. * ADDITIONAL DETAILS... - At 455 AM AKDT, another round of rain is moving up the Cook Inlet and will move into the Susitna Valley later today. Heavy rain is not anticipated, but even minor amounts could exacerbate ongoing flooding issues along the headwaters of Peters Creek and Cache Creek. - Area creeks and streams are already running higher than normal after the rainfall from last week. While waters have been receding, additional rainfall may result in rises again this week. - Streams that may be affected include Peters Creek, Cache Creek, Moose Creek, Kroto Creek, and other nearby streams and their tributaries. Larger rivers such as that Yentna and Susitna are NOT expected to rise into flood stage again. - http://www.weather.gov/safety/flood
INSTRUCTION: Stay tuned to further developments by listening to your local radio, television, or NOAA Weather Radio for further information. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Flooding is occurring or is imminent. It is important to know where you are relative to streams, rivers, or creeks which can become killers in heavy rains. Campers and hikers should avoid streams or creeks.
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Weather Topic: What are Cumulonimbus Clouds?
Home - Education - Cloud Types - Cumulonimbus Clouds
Next Topic: Cumulus Clouds
The final form taken by a growing cumulus cloud is the
cumulonimbus cloud, which is very tall and dense.
The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although
most commonly they stop growing at an altitude of 6 km.
Even small cumulonimbus clouds appear very large in comparison to other cloud types.
They can signal the approach of stormy weather, such as thunderstorms or blizzards.
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Weather Topic: What is Drizzle?
Home - Education - Precipitation - Drizzle
Next Topic: Evaporation
Drizzle is precipitation in the form of water droplets which are
smaller than raindrops.
Drizzle is characterized by fine, gently falling droplets and typically does not
impact human habitation in a negative way. The exception to this is freezing drizzle,
a condition where drizzle freezes immediately upon reaching earth's surface.
Freezing drizzle is still less dangerous than freezing rain, but can
potentially result in hazardous road conditions.
Next Topic: Evaporation
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