Weather Alert in California
Flood Advisory issued February 24 at 3:10PM PST until February 25 at 6:27PM PST by NWS Reno NV
AREAS AFFECTED: Lassen, CA
DESCRIPTION: ...The National Weather Service in Reno has issued a Flood Advisory for the following rivers in California... Susan River At Susanville affecting Lassen County. For the Susan River near Susanville. Minor flooding is forecast. * WHAT...Minor flooding caused by rain and snowmelt is expected. * WHERE...Susan River at Susanville. * WHEN...From this evening to tomorrow night. * IMPACTS...At 12.0 feet, Flood Stage. Local flooding in Susanville from Lassen Street downstream along Riverside Drive...especially below Paiute Creek which enters river near Alexander Drive. Moderate lowland flooding below Susanville in Johnstonville... Leavitt Lake...Standish... and Litchfield areas. Some rural roads affected by flooding. While the gage is expected to fall quickly below flood stage impacts downstream near Standish will be delayed and more prolonged. * ADDITIONAL DETAILS... - At 2:30 PM PST Tuesday the stage was 7.4 feet. - Forecast...The river will rise to flood stage late this evening near midnight tonight. It will below flood stage at the gage early Wednesday morning. - Action stage is 10.5 feet. - Flood stage is 12.0 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: If you are in the advisory area, remain alert to possible flooding or the possibility of the advisory being upgraded to a warning. Be cautions of nighttime flooding. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely. Additional information is available at www.weather.gov. The next statement will be issued Wednesday evening at 630 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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