Weather Alert in Washington
Flood Watch issued March 18 at 3:23PM PDT until March 22 at 2:11PM PDT by NWS Pendleton OR
AREAS AFFECTED: Yakima Valley
DESCRIPTION: ...The Flood Watch continues for the following rivers in Washington... Naches River near Naches affecting Yakima Valley zone. .Heavy rain along the Cascade crest and warm temperatures leading to increased snow melt will lead to rising water levels on the Naches River. Flows in rivers may increase quickly and reach critical levels. For the Naches River...including Cliffdell, Naches...flooding is possible. * WHAT...Flooding is possible. * WHERE...Naches River near Naches. * WHEN...From Friday afternoon to early Sunday afternoon. * IMPACTS...At 18.6 feet, Minor flooding is possible from Cliffdell downstream to Yakima. * ADDITIONAL DETAILS... - At 1:45 PM PDT Wednesday the stage was 17.4 feet. - Forecast...Flood stage may be reached Friday afternoon. - Flood stage is 17.8 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: If you are in the watch area, remain alert to possible flooding. Additional information is available at www.weather.gov/pdt.
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Weather Topic: What are Altocumulus Clouds?
Home - Education - Cloud Types - Altocumulus Clouds
Next Topic: Altostratus Clouds
Similar to cirrocumulus clouds, altocumulus clouds are
characterized by cloud patches. They are distinguished by larger cloudlets
than cirrocumulus clouds but are still smaller than stratocumulus clouds.
Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km)
and may resemble, at times, the shape of a flying saucer.
These uncommon formations, called altocumulus lenticularis, are created by uplift
in the atmosphere and are most often seen in close proximity to mountains.
Next Topic: Altostratus Clouds
Weather Topic: What are Cirrocumulus Clouds?
Home - Education - Cloud Types - Cirrocumulus Clouds
Next Topic: Cirrostratus Clouds
Cirrocumulus clouds form at high altitudes (usually around 5 km)
and have distinguishing characteristics displayed in a fine layer of
small cloud patches. These small cloud patches are sometimes referred to as
"cloudlets" in relation to the whole cloud formation.
Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the
water droplets in the cloud freeze into ice crystals and the cloud becomes a
cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud
formations generally pass rapidly.
Next Topic: Cirrostratus Clouds
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