Forecast Details for Scappoose, OR

Recent Locations: Scappoose, OR

Overnight: Rain, mainly before 3am. Snow level 3700 feet lowering to 1900 feet. Low around 39. Northwest wind 5 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday: Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Snow level 1800 feet. High near 50. Calm wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night: Showers and thunderstorms likely before 10pm, then a slight chance of showers between 10pm and 11pm. Areas of frost after 2am. Snow level 1700 feet. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 35. West wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 60%.

Thursday: A 30 percent chance of showers after 11am. Areas of frost before 8am. Snow level 2000 feet rising to 3100 feet in the afternoon. Otherwise, partly sunny, with a high near 54. Calm wind becoming west around 5 mph in the afternoon.

Thursday Night: Increasing clouds, with a low around 39. West northwest wind around 6 mph becoming calm in the evening.

Friday: Partly sunny, with a high near 59.

Friday Night: Mostly cloudy, with a low around 40.

Saturday: A slight chance of rain after 11am. Partly sunny, with a high near 65.

Saturday Night: A chance of rain. Mostly cloudy, with a low around 48.

Sunday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 66.

Sunday Night: A chance of rain. Mostly cloudy, with a low around 48.

Monday: A chance of rain. Partly sunny, with a high near 70.

Monday Night: A slight chance of rain. Partly cloudy, with a low around 48.

Tuesday: A chance of rain. Partly sunny, with a high near 68.

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North America Water Vapor (Moisture)

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Weather Topic: What are Stratus Clouds?

Home - Education - Cloud Types - Stratus Clouds

Next Topic: Wall Clouds

Stratus clouds are similar to altostratus clouds, but form at a lower altitude and are identified by their fog-like appearance, lacking the distinguishing features of most clouds.

Stratus clouds are wider than most clouds, and their base has a smooth, uniform look which is lighter in color than a nimbostratus cloud. The presence of a stratus cloud indicates the possibility of minor precipitation, such as drizzle, but heavier precipitation does not typically arrive in the form of a stratus cloud.

Next Topic: Wall Clouds

Weather Topic: What are Altocumulus Clouds?

Home - Education - Cloud Types - Altocumulus Clouds

Next Topic: Altostratus Clouds

Similar to cirrocumulus clouds, altocumulus clouds are characterized by cloud patches. They are distinguished by larger cloudlets than cirrocumulus clouds but are still smaller than stratocumulus clouds.

Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km) and may resemble, at times, the shape of a flying saucer. These uncommon formations, called altocumulus lenticularis, are created by uplift in the atmosphere and are most often seen in close proximity to mountains.

Next Topic: Altostratus Clouds