Forecast Details for Yamhill, OR

Recent Locations: Trevor, WI Livingston, WI Yamhill, OR

Tonight: Showers and thunderstorms before 2am, then a chance of showers. Snow level 1700 feet. Low around 34. West wind 5 to 9 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday: A 20 percent chance of showers between 1pm and 2pm. Patchy frost before 8am. Snow level 2000 feet rising to 3300 feet in the afternoon. Otherwise, mostly sunny, with a high near 56. Calm wind becoming west around 6 mph in the afternoon.

Thursday Night: Patchy fog after 2am. Patchy frost after 3am. Otherwise, partly cloudy, with a low around 36. West northwest wind 5 to 7 mph becoming calm in the evening.

Friday: Patchy fog before 7am. Patchy frost before 7am. Otherwise, mostly sunny, with a high near 59. Calm wind.

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

Saturday: Partly sunny, with a high near 65.

Saturday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 48.

Sunday: A chance of rain. Mostly cloudy, with a high near 65.

Sunday Night: A slight chance of rain before 11pm. Mostly cloudy, with a low around 47.

Monday: A slight chance of rain after 11am. Partly sunny, with a high near 69.

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

Tuesday: A chance of rain. Mostly cloudy, with a high near 64.

Tuesday Night: A chance of rain. Mostly cloudy, with a low around 47.

Wednesday: A chance of rain. Mostly cloudy, with a high near 60.

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North America Water Vapor (Moisture)

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Weather Topic: What are Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

Next Topic: Condensation

Cirrus clouds are high-level clouds that occur above 20,000 feet and are composed mainly of ice crystals. They are thin and wispy in appearance.

What do they indicate?
They are often the first sign of an approaching storm.

Next Topic: Condensation

Weather Topic: What are Contrails?

Home - Education - Cloud Types - Contrails

Next Topic: Cumulonimbus Clouds

A contrail is an artificial cloud, created by the passing of an aircraft.

Contrails form because water vapor in the exhaust of aircraft engines is suspended in the air under certain temperatures and humidity conditions. These contrails are called exhaust contrails.

Another type of contrail can form due to a temporary reduction in air pressure moving over the plane's surface, causing condensation. These are called aerodynamic contrails.

When you can see your breath on a cold day, it is also because of condensation. The reason contrails last longer than the condensation from your breath is because the water in contrails freezes into ice particles.

Next Topic: Cumulonimbus Clouds