Weather Alert in California
High Wind Warning Wind Advisory
Winter Storm Warning issued February 10 at 8:33PM PST until February 11 at 4:00PM PST by NWS Hanford CA
AREAS AFFECTED: Yosemite NP outside of the valley; Upper San Joaquin River; Kaiser to Rodgers Ridge
DESCRIPTION: * WHAT...Heavy snow expected. Total snow accumulations 12 to 18 inches above 7000 feet and up to 24 inches at the highest elevations. Winds gusting as high as 40 to to 50 mph. * WHERE...Kaiser to Rodgers Ridge, Upper San Joaquin River, and Yosemite NP outside of the valley. * WHEN...Until 4 PM PST Wednesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Wednesday morning commute. * ADDITIONAL DETAILS...Heaviest snow expected Tuesday evening into Wednesday morning.
INSTRUCTION: If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.
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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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