Forecast Details for Chemult, OR

Recent Locations: Peoria, IL Graniteville, SC Chemult, OR

Today: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 54. Light and variable wind.

Tonight: A chance of rain and snow after 4am. Snow level 6600 feet lowering to 6000 feet after midnight . Partly cloudy, with a low around 29. North wind 3 to 5 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

Saturday: A chance of snow before 7am, then a chance of rain and snow between 7am and 9am, then rain likely after 9am. Snow level 6700 feet rising to 7600 feet in the afternoon. Mostly cloudy, with a high near 50. Light south southwest wind. Chance of precipitation is 70%. Little or no snow accumulation expected.

Saturday Night: Showers likely, mainly before 4am. Patchy fog. Snow level 8000 feet lowering to 7400 feet after midnight . Otherwise, mostly cloudy, with a low around 33. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Sunday: Showers, mainly after 10am. Patchy fog before 10am. Snow level 6900 feet. High near 50. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Sunday Night: Showers likely, mainly before 10pm. Patchy fog after 10pm. Snow level 6400 feet. Otherwise, mostly cloudy, with a low around 30. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Monday: A 40 percent chance of showers. Patchy fog before 10am. Snow level 5800 feet rising to 6400 feet in the afternoon. Otherwise, partly sunny, with a high near 51.

Monday Night: Mostly clear, with a low around 27.

Tuesday: Mostly sunny, with a high near 55.

Tuesday Night: A chance of rain before 1am, then rain likely, possibly mixed with snow. Snow level 6500 feet lowering to 5700 feet after midnight . Mostly cloudy, with a low around 31.

Wednesday: Rain and snow. Mostly cloudy, with a high near 44.

Wednesday Night: Snow likely. Mostly cloudy, with a low around 25.

Thursday: A chance of snow. Partly sunny, with a high near 46.

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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

Weather Topic: What are Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

Next Topic: Drizzle

Cumulus clouds are fluffy and textured with rounded tops, and may have flat bottoms. The border of a cumulus cloud is clearly defined, and can have the appearance of cotton or cauliflower.

Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall, becoming cumulus congestus and possibly the even taller cumulonimbus clouds. When cumulus clouds become taller, they have a greater chance of producing precipitation.

Next Topic: Drizzle