Forecast Details for Cathlamet, WA

Recent Locations: Belfry, KY Brookhaven, PA Cathlamet, WA

Today: Showers and possibly a thunderstorm. Snow level 1800 feet. High near 48. West wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight: Showers and thunderstorms likely before 9pm, then a slight chance of showers between 9pm and 10pm. Patchy fog after 5am. Patchy frost between midnight and 3am. Snow level 1900 feet. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 36. West wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday: A 40 percent chance of showers, mainly after 11am. Partly sunny, with a high near 55. Calm wind becoming west 5 to 9 mph in the afternoon.

Thursday Night: A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 40. West wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 20 mph.

Friday: Partly sunny, with a high near 59. Calm wind.

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

Saturday: A 30 percent chance of rain after 11am. Mostly cloudy, with a high near 65.

Saturday Night: Rain likely. Mostly cloudy, with a low around 48.

Sunday: Rain likely. Mostly cloudy, with a high near 66.

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

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

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

Tuesday: A chance of rain. Partly sunny, with a high near 65.

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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 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