Weather Alert in California
Flood Warning issued February 25 at 9:00AM PST until February 26 at 2:30PM PST by NWS Sacramento CA
AREAS AFFECTED: Tehama, CA
DESCRIPTION: ...The Flood Warning is extended for the following rivers in California... Sacramento River At Vina Woodson Bridge affecting Tehama County. Sacramento River At Tehama Bridge affecting Tehama County. .Recent precipitation will lead to minor flooding at Ord Ferry, Tehama Bridge and Vina Woodson Bridge on the Upper Sacramento River System. For the Upper Sacramento River...including Ord Ferry, Tehama Bridge and Vina Woodson Bridge...Minor flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Sacramento River at Vina Woodson Bridge. * WHEN...Until early tomorrow afternoon. * IMPACTS...At 183.9 feet, Tehama County Park on left bank of river is closed due to flooding. Water is up to the top steps of the recreation center at the RV Park south of the bridge and on left bank of river with spaces 15-33 taking on water. At 184.9 feet, South Avenue starts to flood east of the river. * ADDITIONAL DETAILS... - At 8:00 AM PST Wednesday the stage was 184.4 feet. - Bankfull stage is 180.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:00 AM PST Wednesday was 184.4 feet. - Forecast...The river is expected to rise to a crest of 184.9 feet this afternoon. It will then fall below flood stage late this evening. - Flood stage is 183.0 feet. - Flood History...This crest compares to a previous crest of 184.9 feet on 01/16/1973. - http://www.weather.gov/safety/flood
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. For more hydrologic information and stage definitions refer to the following web site: wrh.noaa.gov/sto/hydro_data.php The next statement will be issued Thursday morning at 900 AM PST.
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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
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