Forecast Details for Shell Rock, IA

Recent Locations: Mapleton, OR Springville, AL Shell Rock, IA

Today: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after noon. High near 50. East wind 9 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight: Showers and thunderstorms before 1am, then a chance of showers between 1am and 3am. Low around 35. Breezy, with an east wind 14 to 16 mph becoming west in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Saturday: A slight chance of rain showers before 10am, then a slight chance of snow showers between 10am and 11am, then a slight chance of rain showers after 11am. Mostly cloudy, with a high near 45. Windy, with a west wind 18 to 25 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.

Saturday Night: Mostly cloudy, with a low around 31. Windy, with a west northwest wind 15 to 22 mph, with gusts as high as 30 mph.

Sunday: Mostly sunny, with a high near 54. Breezy, with a west northwest wind 13 to 17 mph, with gusts as high as 23 mph.

Sunday Night: Partly cloudy, with a low around 32.

Monday: Mostly sunny, with a high near 47. Windy.

Monday Night: Mostly clear, with a low around 22. Blustery.

Tuesday: Mostly sunny, with a high near 47. Breezy.

Tuesday Night: A chance of rain and snow showers. Mostly cloudy, with a low around 36. Windy. Chance of precipitation is 40%.

Wednesday: A 30 percent chance of showers. Partly sunny, with a high near 68. Windy.

Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 43. Windy.

Thursday: A 50 percent chance of showers. Mostly cloudy, with a high near 57. Windy.

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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 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