Weather Alert in Washington
Flood Warning issued March 12 at 4:54AM PDT until March 14 at 1:30AM PDT by NWS Portland OR
AREAS AFFECTED: Wahkiakum, WA
DESCRIPTION: ...The Flood Warning continues for the following rivers in Washington... Grays River at Covered Bridge near Rosburg affecting Wahkiakum County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Grays River at Covered Bridge near Rosburg. * WHEN...Until early Saturday morning. * IMPACTS...Above 30.5 feet, expect widespread lowland flooding and numerous flooded roads near Rosburg and Hwy 4. These include Covered Bridge Road near the gage and the roadway approaches to the Altoona Bridge downstream of the gage. * ADDITIONAL DETAILS... - At 4:15 AM PDT Thursday the stage was 30.1 feet. - Bankfull stage is 27.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 4:15 AM PDT Thursday was 30.6 feet. - Forecast...The river will fall below flood stage this afternoon to 27.7 feet late tonight. It will then rise above flood stage to 28.6 feet tomorrow afternoon. It will fall below flood stage again tomorrow evening to 26.8 feet late Sunday evening. It will then rise to 26.9 feet early Monday morning. It will fall again and remain below flood stage. - Flood stage is 28.5 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: Motorists should not attempt to drive around barricades or drive through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at www.weather.gov. The next statement will be issued this afternoon at 500 PM PDT.
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Weather Topic: What are Cumulus Clouds?
Home - Education - Cloud Types - Cumulus Clouds
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Cumulus clouds are fluffy and textured with rounded tops, and
may have flat bottoms. The border of a cumulus cloud
is clearly defined, and can have the appearance of cotton or cauliflower.
Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall,
becoming cumulus congestus and possibly the even taller cumulonimbus clouds.
When cumulus clouds become taller, they have a greater chance of producing precipitation.
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Weather Topic: What is Evaporation?
Home - Education - Precipitation - Evaporation
Next Topic: Fog
Evaporation is the process which returns water from the earth
back to the atmosphere, and is another crucial process in the water cycle.
Evaporation is the transformation of liquid into gas, and it happens because
molecules are excited by the application of energy and turn into vapor.
In order for water to evaporate it has to be on the surface of a body of water.
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