Weather Alert in Washington
Flood Watch issued August 27 at 1:49PM PDT until August 28 at 9:00PM PDT by NWS Spokane WA
AREAS AFFECTED: Chelan, WA; Okanogan, WA
DESCRIPTION: Thunderstorms with heavy rain are expected to develop late Thursday morning through Thursday evening in the Cascades. Heavy rainfall in steep terrain and burn scars may lead to flash flooding or debris flows on Thursday. * WHAT...Flash flooding and debris flows caused by excessive rainfall from thunderstorms is possible. * WHERE...A portion of North Central Washington, including the following counties, Chelan and Okanogan. This will include, but not limited to burn scar locations: Pioneer and 25 Mile burn scars in Chelan County, and Cedar Creek, Cub Creek, Muckamuck, Walker Creek, and Eagle Bluff burn scars in Okanogan County. * WHEN...From Thursday morning through Thursday evening. * IMPACTS...Heavy rainfall may result in flash flooding or debris flows in steep terrain, particularly near burn scar locations. Rain rates of up to an inch per hour will be possible with thunderstorms. * ADDITIONAL DETAILS... - Those within canyons or near burn scars should monitor for updated information from local authorities. - http://www.weather.gov/safety/flood
INSTRUCTION: You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
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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.
Next Topic: Cumulus Clouds
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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