Weather Alert in Oregon
Flood Watch issued February 23 at 9:35AM PST until February 26 at 4:00AM PST by NWS Medford OR
AREAS AFFECTED: South Central Oregon Coast
DESCRIPTION: ...The National Weather Service in Medford OR has issued a Flood Watch for the following rivers in Oregon... Coquille River at Coquille affecting South Central Oregon Coast zone. .A Pineapple Express will bring heavy rain to the Coquille River basin, which could result in minor flooding due to excessive runoff. * WHAT...Minor flooding is possible. * WHERE...Coquille River at Coquille. * WHEN...From this morning to early Thursday morning. The river is expected to crest between Tuesday evening and Wednesday evening. * ADDITIONAL DETAILS... - At 8:45 AM PST Monday the stage was 17.4 feet. - Forecast...Flood stage may be reached based on the latest forecast information. - Flood stage is 21.0 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. The next statement will be issued Tuesday morning at 1000 AM PST.
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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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