Forecast Details for Alden, IA

Recent Locations: Navesink, NJ Brashear, TX Alden, IA

Overnight: Mostly cloudy, with a low around 36. North northeast wind around 15 mph, with gusts as high as 21 mph.

Wednesday: A 30 percent chance of showers, mainly after 5pm. Mostly cloudy, with a high near 51. Breezy, with an east wind 14 to 20 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.

Wednesday Night: Showers, mainly after 7pm. Low around 37. Windy, with an east wind 18 to 22 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

Thursday: Showers and possibly a thunderstorm. High near 58. Breezy, with an east wind 16 to 20 mph becoming west southwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Thursday Night: Mostly cloudy, with a low around 33. Breezy, with a west wind 13 to 18 mph becoming north 7 to 12 mph after midnight. Winds could gust as high as 23 mph.

Friday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 58. Breezy. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Friday Night: Showers likely and possibly a thunderstorm before 10pm, then showers likely between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 35. Breezy. Chance of precipitation is 70%.

Saturday: A 20 percent chance of showers. Mostly cloudy, with a high near 43. Windy.

Saturday Night: Mostly cloudy, with a low around 27. Windy.

Sunday: Sunny, with a high near 50. Breezy.

Sunday Night: Mostly clear, with a low around 32.

Monday: Partly sunny, with a high near 56.

Monday Night: Mostly cloudy, with a low around 29.

Tuesday: Mostly sunny, with a high near 51.

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Current U.S. National Radar--Current

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North America Water Vapor (Moisture)

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Weather Topic: What is Precipitation?

Home - Education - Precipitation - Precipitation

Next Topic: Rain

Precipitation can refer to many different forms of water that may fall from clouds. Precipitation occurs after a cloud has become saturated to the point where its water particles are more dense than the air below the cloud.

In most cases, precipitation will reach the ground, but it is not uncommon for precipitation to evaporate before it reaches the earth's surface. When precipitation evaporates before it contacts the ground it is called Virga. Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog and mist are not considered precipitation because the water vapor which constitutes them isn't dense enough to fall to the ground.

Next Topic: Rain

Weather Topic: What are Shelf Clouds?

Home - Education - Cloud Types - Shelf Clouds

Shelf Clouds Next Topic: Sleet

A shelf cloud is similar to a wall cloud, but forms at the front of a storm cloud, instead of at the rear, where wall clouds form.

A shelf cloud is caused by a series of events set into motion by the advancing storm; first, cool air settles along the ground where precipitation has just fallen. As the cool air is brought in, the warmer air is displaced, and rises above it, because it is less dense. When the warmer air reaches the bottom of the storm cloud, it begins to cool again, and the resulting condensation is a visible shelf cloud.

Next Topic: Sleet