Weather Alert in Oregon
Flood Advisory issued August 25 at 6:30AM PDT until August 25 at 8:45AM PDT by NWS Portland OR
AREAS AFFECTED: Lane, OR
DESCRIPTION: The thunderstorm that has produced significant rainfall continues to park over the area. Expecting additional rainfall amounts which may cause localized urban flooding in poor drainage areas. This is an updated product from the previous advisory. * WHAT...Urban and small stream flooding caused by excessive rainfall is expected. * WHERE...A portion of northwest Oregon, including the following county, Lane. * WHEN...Until 845 AM PDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 629 AM PDT, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and potentially small stream flooding. - Some locations that will experience flooding include... Eugene, Springfield, Creswell, Lowell, Dorena, North Springfield, Pleasant Hill, Dexter, Jasper, Goshen and Dorena Reservoir. - http://www.weather.gov/safety/flood
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
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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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