Weather Alert in Washington
Flood Warning issued March 20 at 4:15PM PDT until March 22 at 12:07AM PDT by NWS Pendleton OR
AREAS AFFECTED: Kittitas, WA
DESCRIPTION: ...The National Weather Service in Pendleton OR has issued a Flood Warning for the following rivers in Washington... Yakima River at Umtanum affecting Kittitas County. Yakima River near Parker affecting Yakima County. Yakima River at Kiona affecting Benton County. For the Yakima River...including Horlick, Umtanum, Parker, Kiona... Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...Yakima River at Umtanum. * WHEN...From late tonight to early Sunday morning. * IMPACTS...At 35.5 feet, At this level, there will be minor flooding in areas along the river from Teanaway to Ellensburg including Irene Rienhart Park in Ellensburg. * ADDITIONAL DETAILS... - At 3:15 PM PDT Friday the stage was 34.8 feet. - Bankfull stage is 33.5 feet. - Forecast...The river will rise above flood stage just after midnight tonight to 35.7 feet late tomorrow morning. It will then fall below flood stage tomorrow evening to 33.3 feet late Tuesday evening. It will rise to 33.8 feet late Thursday morning. It will then fall again and remain below flood stage. - Flood stage is 35.5 feet. - Flood History...This crest compares to a previous crest of 35.2 feet on 01/31/1965. - http://www.weather.gov/safety/flood
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov/pdt.
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Weather Topic: What are Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Nimbostratus Clouds
A mammatus cloud is a cloud with a unique feature which resembles
a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly
in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form
under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds
warn that severe weather is close.
Next Topic: Nimbostratus Clouds
Weather Topic: What is Precipitation?
Home - Education - Precipitation - Precipitation
Next Topic: Rain
Precipitation can refer to many different forms of water that
may fall from clouds. Precipitation occurs after a cloud has become saturated to
the point where its water particles are more dense than the air below the cloud.
In most cases, precipitation will reach the ground, but it is not uncommon for
precipitation to evaporate before it reaches the earth's surface.
When precipitation evaporates before it contacts the ground it is called Virga.
Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog
and mist are not considered precipitation because the water vapor which
constitutes them isn't dense enough to fall to the ground.
Next Topic: Rain
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