Forecast Details for Sioux City, IA

Recent Locations: Newhall, CA   Annapolis, MD   Sioux City, IA  
Current Alerts for Sioux City, IA: Red Flag Warning Wind Advisory
Today: Sunny, with a high near 61. Breezy, with a west wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 40 mph.
Tonight: Partly cloudy, with a low around 27. North northwest wind 5 to 15 mph becoming northeast after midnight. Winds could gust as high as 20 mph.
Thursday: A 40 percent chance of snow. Mostly cloudy, with a high near 38. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph. New snow accumulation of around 2 inches.
Thursday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 16. Northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Friday: Sunny, with a high near 31. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Friday Night: Partly cloudy, with a low around 11. North northwest wind around 5 mph.
Saturday: A 20 percent chance of snow before noon. Partly sunny, with a high near 32.
Saturday Night: Partly cloudy, with a low around 10.
Sunday: Sunny, with a high near 31.
Sunday Night: Partly cloudy, with a low around 6.
Monday: Mostly sunny, with a high near 32.
Monday Night: Mostly clear, with a low around 17.
Tuesday: Mostly sunny, with a high near 51.

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Current U.S. National Radar--Current

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Current U.S. National Radar

National Weather Forecast--Current

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Today's National Weather Map

National Weather Forecast for Tomorrow

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Tomorrows National Weather Map

North America Water Vapor (Moisture)

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North American Water Vapor Map

Weather Topic: What are Cirrocumulus Clouds?

Home - Education - Cloud Types - Cirrocumulus Clouds

Cirrocumulus Clouds Next Topic: Cirrostratus Clouds

Cirrocumulus clouds form at high altitudes (usually around 5 km) and have distinguishing characteristics displayed in a fine layer of small cloud patches. These small cloud patches are sometimes referred to as "cloudlets" in relation to the whole cloud formation.

Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the water droplets in the cloud freeze into ice crystals and the cloud becomes a cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud formations generally pass rapidly.

Next Topic: Cirrostratus Clouds

Weather Topic: What are Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

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

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