Forecast Details for Big Rock, VA

Recent Locations: Eagles Mere, PA Big Rock, VA

This Afternoon: Showers and thunderstorms likely before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then showers and thunderstorms likely after 5pm. Mostly cloudy, with a high near 82. Light southwest wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight: Showers and thunderstorms likely before 5am, then a chance of showers. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday: A 40 percent chance of showers and thunderstorms, mainly after 11am. Patchy fog before 9am. Otherwise, partly sunny, with a high near 84. Calm wind.

Thursday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 65. Calm wind. Chance of precipitation is 30%.

Friday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Calm wind.

Friday Night: Mostly clear, with a low around 66.

Saturday: Sunny, with a high near 90.

Saturday Night: Mostly clear, with a low around 66.

Sunday: Sunny, with a high near 90.

Sunday Night: Mostly clear, with a low around 67.

Monday: Sunny, with a high near 90.

Monday Night: Mostly clear, with a low around 67.

Tuesday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.

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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 Stratocumulus Clouds?

Home - Education - Cloud Types - Stratocumulus Clouds

Next Topic: Stratus Clouds

Stratocumulus clouds are similar to altocumulus clouds in their fluffy appearance, but have a slightly darker shade due to their additional mass.

A good way to distinguish the two cloud types is to hold your hand out and measure the size of an individual cloud; if it is the size of your thumb it is generally an altocumulus cloud, if it is the size of your hand it is generally a stratocumulus cloud.

It is uncommon for stratocumulus clouds to produce precipitation, but if they do it is usually a light rain or snow.

Next Topic: Stratus Clouds

Weather Topic: What are Wall Clouds?

Home - Education - Cloud Types - Wall Clouds

Wall Clouds Next Topic: Altocumulus Clouds

A wall cloud forms underneath the base of a cumulonimbus cloud, and can be a hotbed for deadly tornadoes.

Wall clouds are formed by air flowing into the cumulonimbus clouds, which can result in the wall cloud descending from the base of the cumulonimbus cloud, or rising fractus clouds which join to the base of the storm cloud as the wall cloud takes shape.

Wall clouds can be very large, and in the Northern Hemisphere they generally form at the southern edge of cumulonimbus clouds.

Next Topic: Altocumulus Clouds