Weather Alert in California
Flood Warning issued February 25 at 1:50PM PST until February 26 at 5:10PM 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. Sacramento River At Ord Ferry affecting Glenn and Butte Counties. .Recent precipitation has lead to to minor flooding at Ord Ferry, Tehama Bridge and Vina Woodson Bridge on the Upper Sacramento River System. For the Upper Sacramento River...including Tehama Bridge, Vina Woodson Bridge, Ord Ferry...Minor flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Sacramento River at Vina Woodson Bridge. * WHEN...Until 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. At 185.9 feet, South Avenue is flooded and closed. RV Park south of the bridge and on left bank of river experiences more flooding with RV Park office, spaces 1-14, 34-52, and 62-72 impacted. * ADDITIONAL DETAILS... - At 1:00 PM PST Wednesday the stage was 185.8 feet. - Bankfull stage is 180.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 1:00 PM PST Wednesday was 185.8 feet. - Forecast...The river is expected to fall below flood stage just after midnight tonight and continue falling to 171.8 feet early Friday afternoon. - Flood stage is 183.0 feet. - Flood History...This crest compares to a previous crest of 185.8 feet on 03/06/2006. - 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 afternoon at 200 PM PST.
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Weather Topic: What is Sleet?
Home - Education - Precipitation - Sleet
Next Topic: Snow
Sleet is a form of precipitation in which small ice pellets are the primary
components. These ice pellets are smaller and more translucent than hailstones,
and harder than graupel. Sleet is caused by specific atmospheric conditions and
therefore typically doesn't last for extended periods of time.
The condition which leads to sleet formation requires a warmer body of air to be
wedged in between two sub-freezing bodies of air. When snow falls through a warmer
layer of air it melts, and as it falls through the next sub-freezing body of air
it freezes again, forming ice pellets known as sleet. In some cases, water
droplets don't have time to freeze before reaching the surface and the result is
freezing rain.
Next Topic: Snow
Weather Topic: What are Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds
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