Weather Alert in Wyoming
Winter Weather Advisory issued February 10 at 12:04AM MST until February 11 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 across the Teton Mountains, including Teton Pass, and the southern portions of the Gros Ventre Mountains. The highest peaks could see up to 15 inches of snow. Snow accumulations of 4 to 5 inches across Togwotee Pass. * WHERE...Teton and Gros Ventre Mountains. * WHEN...From 5 PM Tuesday to 5 PM MST Wednesday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Tuesday evening and Wednesday commutes, especially over Teton Pass. * ADDITIONAL DETAILS...The heaviest period of snow is expected Wednesday 5AM to 5PM, with possible snowfall rates of 0.5 inch/hour to 1 inch/hour.
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 is Precipitation?
Home - Education - Precipitation - Precipitation
Next Topic: Rain
Precipitation can refer to many different forms of water that
may fall from clouds. Precipitation occurs after a cloud has become saturated to
the point where its water particles are more dense than the air below the cloud.
In most cases, precipitation will reach the ground, but it is not uncommon for
precipitation to evaporate before it reaches the earth's surface.
When precipitation evaporates before it contacts the ground it is called Virga.
Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog
and mist are not considered precipitation because the water vapor which
constitutes them isn't dense enough to fall to the ground.
Next Topic: Rain
Weather Topic: What are Shelf Clouds?
Home - Education - Cloud Types - Shelf Clouds
Next Topic: Sleet
A shelf cloud is similar to a wall cloud, but forms at the front
of a storm cloud, instead of at the rear, where wall clouds form.
A shelf cloud is caused by a series of events set into motion by the advancing
storm; first, cool air settles along the ground where precipitation has just fallen.
As the cool air is brought in, the warmer air is displaced, and rises above it,
because it is less dense. When the warmer air reaches the bottom of the storm cloud,
it begins to cool again, and the resulting condensation is a visible shelf cloud.
Next Topic: Sleet
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