Forecast Details for Ralston, WY

Recent Locations: Arion, IA Fort Davis, TX Ralston, WY

Current Alerts for Ralston, WY: Winter Storm Warning

This Afternoon: Partly sunny, with a high near 65. Breezy, with a southwest wind around 23 mph, with gusts as high as 36 mph.

Tonight: A slight chance of rain showers after 2am, mixing with snow after 5am. Partly cloudy, with a low around 33. Breezy, with a southwest wind 10 to 20 mph becoming north northwest after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 20%.

Thursday: Snow showers likely, mainly between 11am and 2pm. Some thunder is also possible. Partly sunny, with a high near 44. Windy, with a north wind 15 to 20 mph increasing to 25 to 30 mph in the morning. Winds could gust as high as 50 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

Thursday Night: A 50 percent chance of snow showers. Cloudy, then gradually becoming partly cloudy, with a low around 23. Windy, with a north northwest wind 20 to 25 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 48 mph. New snow accumulation of less than a half inch possible.

Friday: A 30 percent chance of snow showers, mainly after noon. Partly sunny, with a high near 46. Breezy, with a north northwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph. Little or no snow accumulation expected.

Friday Night: Mostly cloudy, with a low around 23. Blustery, with a north northwest wind 5 to 15 mph becoming west southwest after midnight. Winds could gust as high as 25 mph.

Saturday: Sunny, with a high near 58. Southwest wind 5 to 11 mph becoming northeast in the afternoon. Winds could gust as high as 21 mph.

Saturday Night: Mostly clear, with a low around 31.

Sunday: Sunny, with a high near 68. Breezy.

Sunday Night: Partly cloudy, with a low around 39.

Monday: Mostly sunny, with a high near 74.

Monday Night: Partly cloudy, with a low around 43.

Tuesday: Sunny, with a high near 77. Breezy.

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

Current U.S. National Radar--Current

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National Weather Forecast--Current

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National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

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Weather Topic: What are Shelf Clouds?

Home - Education - Cloud Types - Shelf Clouds

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

Weather Topic: What is Snow?

Home - Education - Precipitation - Snow

Snow Next Topic: Stratocumulus Clouds

Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake, has unique characteristics, but all of them grow in a hexagonal structure. Snowfall can last for sustained periods of time and result in significant buildup of snow on the ground.

On the earth's surface, snow starts out light and powdery, but as it begins to melt it tends to become more granular, producing small bits of ice which have the consistency of sand. After several cycles of melting and freezing, snow can become very dense and ice-like, commonly known as snow pack.

Next Topic: Stratocumulus Clouds