Forecast Details for Truckee, CA

Recent Locations: Elgin, SC Bangs, TX Truckee, CA

Tonight: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 35. Southwest wind 5 to 10 mph becoming light south in the evening.

Sunday: A 30 percent chance of showers, mainly after 4pm. Patchy fog before 7am. Snow level 8100 feet. Otherwise, mostly cloudy, with a high near 50. Light south wind becoming southwest 5 to 10 mph in the morning.

Sunday Night: A chance of rain and snow before 5am, then a slight chance of snow. Patchy fog after 4am. Snow level 7300 feet lowering to 6100 feet after midnight . Otherwise, mostly cloudy, with a low around 25. Southwest wind around 5 mph becoming calm. Chance of precipitation is 40%. Little or no snow accumulation expected.

Monday: A 20 percent chance of snow before 10am. Patchy fog before 9am. Snow level rising to 6500 feet in the afternoon. Otherwise, mostly sunny, with a high near 47. Calm wind.

Monday Night: Patchy fog after 9pm. Otherwise, mostly clear, with a low around 22. Calm wind.

Tuesday: Sunny, with a high near 55. Calm wind.

Tuesday Night: Partly cloudy, with a low around 25.

Wednesday: A chance of rain after 10am, mixing with snow after 1pm. Snow level 6300 feet. Partly sunny, with a high near 47.

Wednesday Night: A slight chance of rain and snow before 10pm. Patchy fog before 2am, then patchy fog after 3am. Otherwise, partly cloudy, with a low around 19.

Thursday: Mostly sunny, with a high near 46.

Thursday Night: Partly cloudy, with a low around 21.

Friday: Mostly sunny, with a high near 46.

Friday Night: Partly cloudy, with a low around 22.

Saturday: Mostly sunny, with a high near 52.

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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