Weather Alert in California
Winter Weather Advisory issued February 17 at 2:05AM PST until February 18 at 7:00AM PST by NWS Las Vegas NV
AREAS AFFECTED: Eastern Mojave Desert, Including the Mojave National Preserve
DESCRIPTION: * WHAT...Snow expected. Total snow accumulations up to 1 to 3 inches. Winds gusting as high as 50 mph. * WHERE...Eastern Mojave Desert. * WHEN...From 10 PM this evening to 7 AM PST Wednesday. * IMPACTS...Plan on slippery road conditions. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...A period of moderate to locally heavy snow is expected late tonight into early Wednesday morning as a cold front moves through. Snow levels near 4000 feet will will impact travel routes on I-15 including Mountain Pass and Halloran Springs Summit. Strong winds may result in low visibility at times.
INSTRUCTION: Slow down and use caution while traveling. Call 1-800-427-7623 for road information.
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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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