Weather Alert in Oregon
Flood Warning issued March 12 at 2:34PM MDT by NWS Boise ID
AREAS AFFECTED: Malheur, OR
DESCRIPTION: ...The Flood Warning continues for the following river in Oregon... Owyhee River Below Owyhee Dam affecting Malheur County. .Snow melt and reservoir flood risk management will cause the river flows to remain high. Expect minor flooding downstream from the dam. For the Owyhee River...including Owyhee Dam, Owyhee Dam...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...Owyhee River below Owyhee Dam. * WHEN...Until further notice. * IMPACTS...At 3,000.0 cfs, Low lying roads, river access and recreation sites adjacent to the river will flood. Farm equipment near the river may need to be moved. * ADDITIONAL DETAILS... - At 1:30 PM MDT Wednesday /12:30 PM PDT Wednesday/ the flow was 2,857.0 cfs. - Bankfull flow is 1,000.0 cfs. - Forecast...The river is expected to remain at minor flood stage with fluctuations in outflows from the dam possible. - Flood flow is 3,000.0 cfs. - Flood History...This crest compares to a previous crest of 2,970.0 cfs on 06/06/1980. - https://www.weather.gov/safety/flood
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov. The next statement will be issued Thursday afternoon at 245 PM MDT /145 PM PDT/.
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Weather Topic: What are Nimbostratus Clouds?
Home - Education - Cloud Types - Nimbostratus Clouds
Next Topic: Precipitation
A nimbostratus cloud is similar to a stratus cloud in its formless,
smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud,
because it is thicker.
Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat
of moderate to heavy precipitation. In some cases, the precipitation may evaporate
before reaching the ground, a phenomenon known as virga.
Next Topic: Precipitation
Weather Topic: What is Rain?
Home - Education - Precipitation - Rain
Next Topic: Shelf Clouds
Precipitation in the form of water droplets is called rain.
Rain generally has a tendency to fall with less intensity over a greater period
of time, and when rainfall is more severe it is usually less sustained.
Rain is the most common form of precipitation and happens with greater frequency
depending on the season and regional influences. Cities have been shown to have
an observable effect on rainfall, due to an effect called the urban heat island.
Compared to upwind, monthly rainfall between twenty and forty miles downwind of
cities is 30% greater.
Next Topic: Shelf Clouds
