Weather Alert in Wyoming
Winter Weather Advisory issued February 8 at 1:14AM MST until February 9 at 5:00PM MST by NWS Riverton WY
AREAS AFFECTED: Teton and Gros Ventre Mountains
DESCRIPTION: * WHAT...Snow expected. Total snow accumulations of 6 to 12 inches, including over Togwotee and Teton Passes. Locally higher amounts up to 18 inches are possible across the highest terrain of the Tetons. Widespread wind gusts of 20 to 35 mph with the higher terrain of the Tetons seeing gusts up to 40 mph. * WHERE...Teton and Gros Ventre Mountains. * WHEN...From 5 PM this afternoon to 5 PM MST Monday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning and evening commutes. * ADDITIONAL DETAILS...The period of heaviest snowfall is forecast to occur between 11PM Sunday and 11AM Monday with snow rates of 0.5 inch per hour to 1 inch per hour possible.
INSTRUCTION: Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info .
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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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