Weather Alert in Utah
Winter Weather Advisory issued February 17 at 2:29PM MST until February 18 at 3:00PM MST by NWS Salt Lake City UT
AREAS AFFECTED: Tooele and Rush Valleys; Eastern Box Elder County; Northern Wasatch Front; Salt Lake Valley; Utah Valley; Eastern Juab/Millard Counties
DESCRIPTION: * WHAT...Snow expected. Total snow accumulations between 1 and 4 inches with locally higher amounts up to 6 inches along the benches. * WHERE...The Wasatch Front, Tooele and Rush Valleys, and Eastern Juab/Millard Counties. * WHEN...From 3 AM to 3 PM MST Wednesday. * IMPACTS...Winter driving conditions are expected, with impacts possible for the Wednesday morning commute. * ADDITIONAL DETAILS...Heaviest snowfall is expected between 6 AM to 11 AM, with snow rates around 1 inch per hour possible at times during this period. More showery conditions continue through the remainder of the afternoon.
INSTRUCTION: Slow down and use caution while traveling. For winter road conditions from the Utah Department of Transportation, visit http://www.udottraffic.utah.gov. For graphical depictions of the snowfall forecast, including Official NWS Forecast, High End Amount, and Low End Amount, visit weather.gov/slc/winter.
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Weather Topic: What are Cirrus Clouds?
Home - Education - Cloud Types - Cirrus Clouds
Next Topic: Condensation
Cirrus clouds are high-level clouds that occur above 20,000 feet
and are composed mainly of ice crystals.
They are thin and wispy in appearance.
What do they indicate?
They are often the first sign of an approaching storm.
Next Topic: Condensation
Weather Topic: What are Contrails?
Home - Education - Cloud Types - Contrails
Next Topic: Cumulonimbus Clouds
A contrail is an artificial cloud, created by the passing of an
aircraft.
Contrails form because water vapor in the exhaust of aircraft engines is suspended
in the air under certain temperatures and humidity conditions. These contrails
are called exhaust contrails.
Another type of contrail can form due to a temporary reduction in air pressure
moving over the plane's surface, causing condensation.
These are called aerodynamic contrails.
When you can see your breath on a cold day, it is also because of condensation.
The reason contrails last longer than the condensation from your breath is
because the water in contrails freezes into ice particles.
Next Topic: Cumulonimbus Clouds
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