Forecast Details for Clark Fork, ID

Recent Locations: Madison, CT Spraggs, PA Clark Fork, ID

Tonight: Showers likely, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 48. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday: Showers and possibly a thunderstorm. Steady temperature around 50. Calm wind becoming west around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Wednesday Night: Showers, mainly before 11pm. Snow level 6400 feet lowering to 3400 feet after midnight . Low around 37. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday: Rain showers likely before 8am, then rain and snow showers likely between 8am and 11am, then rain showers after 11am. Some thunder is also possible. Snow level 3200 feet. High near 49. Light northwest wind. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday Night: Rain showers likely before 11pm, then a chance of rain and snow showers between 11pm and 2am, then a chance of snow showers after 2am. Snow level 3700 feet lowering to 2100 feet after midnight . Mostly cloudy, with a low around 33. Calm wind. Chance of precipitation is 60%. Little or no snow accumulation expected.

Friday: A chance of snow showers before 2pm, then a chance of rain and snow showers. Snow level rising to 2600 feet in the afternoon. Partly sunny, with a high near 50. Chance of precipitation is 40%. Little or no snow accumulation expected.

Friday Night: A 20 percent chance of showers before 11pm. Snow level 3000 feet lowering to 2300 feet after midnight . Partly cloudy, with a low around 31.

Saturday: Mostly sunny, with a high near 51.

Saturday Night: Partly cloudy, with a low around 31.

Sunday: Mostly sunny, with a high near 55.

Sunday Night: Partly cloudy, with a low around 34.

Monday: A 30 percent chance of showers. Snow level 3100 feet rising to 4800 feet in the afternoon. Mostly sunny, with a high near 59.

Monday Night: A 20 percent chance of showers. Partly cloudy, with a low around 37.

Tuesday: A 20 percent chance of showers. Mostly sunny, with a high near 63.

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North America Water Vapor (Moisture)

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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

Weather Topic: What are Altostratus Clouds?

Home - Education - Cloud Types - Altostratus Clouds

Next Topic: Cirrocumulus Clouds

Altostratus clouds form at mid to high-level altitudes (between 2 and 7 km) and are created by a warm, stable air mass which causes water vapor to condense as it rise through the atmosphere. Usually altostratus clouds are featureless sheets characterized by a uniform color.

In some cases, wind punching through the cloud formation may give it a waved appearance, called altostratus undulatus. Altostratus clouds are commonly seen with other cloud formations accompanying them.

Next Topic: Cirrocumulus Clouds