Weather Alert in California
Winter Weather Advisory issued February 18 at 6:25PM PST until February 19 at 7:00PM PST by NWS Las Vegas NV
AREAS AFFECTED: Eastern Sierra Slopes of Inyo County
DESCRIPTION: * WHAT...Additional snow expected. Total snow accumulations between 8 and 14 inches above 8000 feet and between 4 and 8 inches above 6000 feet. Winds gusting as high as 60 mph. * WHERE...Eastern Sierra Slopes. * WHEN...From 7 AM to 7 PM PST Thursday. * IMPACTS...Roads will likely become slick and hazardous. Reduced visibility from blowing snow is possible and could make travel hazardous. Travel could be very difficult along State Route 168 to Aspendell. Strong winds could cause tree or power line damage.
INSTRUCTION: Slow down and use caution while traveling. Call 1-800-427-7623 for road information.
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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
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
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