Forecast Details for Swan Valley, ID

Recent Locations: Macksburg, IA   California City, CA   Swan Valley, ID  
Tonight: Mostly cloudy, with a low around 37. West southwest wind 5 to 11 mph becoming east southeast in the evening. Winds could gust as high as 21 mph.
Monday: A 30 percent chance of rain, mainly after 4pm. Snow level rising to 7100 feet in the afternoon. Increasing clouds, with a high near 53. East wind 5 to 9 mph becoming west in the afternoon.
Monday Night: A chance of showers and thunderstorms before 9pm, then a chance of rain after 9pm. Snow level 7200 feet lowering to 6400 feet after midnight . Mostly cloudy, with a low around 35. West wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 50%.
Tuesday: Rain and snow showers likely, becoming all rain after 9am. Some thunder is also possible. Snow level 6300 feet rising to 7500 feet in the afternoon. Mostly cloudy, with a high near 52. Northwest wind 3 to 8 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Tuesday Night: A 20 percent chance of showers and thunderstorms before midnight. Snow level 7800 feet lowering to 7000 feet after midnight . Partly cloudy, with a low around 37. West wind around 7 mph becoming southeast after midnight.
Wednesday: A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Snow level 6800 feet rising to 8000 feet in the afternoon. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.
Wednesday Night: Showers. Snow level 8400 feet lowering to 7200 feet after midnight . Low around 37. Chance of precipitation is 80%.
Thursday: Rain and snow showers likely, becoming all rain after noon. Some thunder is also possible. Snow level 6200 feet. Mostly cloudy, with a high near 47. Chance of precipitation is 70%.
Thursday Night: A 40 percent chance of showers, mainly before midnight. Snow level 6700 feet. Mostly cloudy, with a low around 34.
Friday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Snow level 6400 feet rising to 7900 feet in the afternoon. Mostly sunny, with a high near 55. Chance of precipitation is 30%.
Friday Night: Partly cloudy, with a low around 38.
Saturday: A 40 percent chance of showers and thunderstorms. Snow level 8000 feet rising to 9200 feet in the afternoon. Partly sunny, with a high near 61.
Saturday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 43.
Sunday: A 50 percent chance of showers and thunderstorms. Snow level 8500 feet. Partly sunny, with a high near 59.

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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