Forecast Details for Flagstaff, AZ

Recent Locations: Amorita, OK Wrightsville Beach, NC Flagstaff, AZ

Tonight: Mostly cloudy, with a low around 54. West wind 3 to 6 mph.

Thursday: Showers and thunderstorms likely, mainly before 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 84. Southwest wind 6 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.

Thursday Night: Showers likely and possibly a thunderstorm before 11pm, then a chance of showers and thunderstorms between 11pm and 5am, then a chance of showers after 5am. Mostly cloudy, with a low around 51. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.

Friday: Showers and thunderstorms likely, mainly between 11am and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 79. Southwest wind 5 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 70%.

Friday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 5am. Partly cloudy, with a low around 50. West wind around 6 mph becoming calm. Chance of precipitation is 50%.

Saturday: A 40 percent chance of showers and thunderstorms, mainly after 11am. Mostly sunny, with a high near 78. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 20 mph.

Saturday Night: A 30 percent chance of showers and thunderstorms before 11pm. Mostly clear, with a low around 50. Southwest wind around 5 mph becoming calm in the evening.

Sunday: A 30 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 81. Calm wind becoming south around 6 mph in the morning. Winds could gust as high as 17 mph.

Sunday Night: A 10 percent chance of showers and thunderstorms before 11pm. Mostly clear, with a low around 52. Light southwest wind.

Monday: A 30 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 84. Calm wind becoming south around 6 mph in the morning. Winds could gust as high as 17 mph.

Monday Night: A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 54. Calm wind becoming west around 5 mph.

Tuesday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. Calm wind becoming east around 6 mph in the morning. Winds could gust as high as 16 mph.

Tuesday Night: A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 55. Calm wind becoming west around 5 mph.

Wednesday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Calm wind becoming east around 6 mph in the morning. Winds could gust as high as 15 mph.

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North America Water Vapor (Moisture)

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Weather Topic: What is Condensation?

Home - Education - Precipitation - Condensation

Next Topic: Contrails

Condensation is the process which creates clouds, and therefore it is a crucial process in the water cycle. Condensation is the change of matter from a state of gas into a state of liquid, and it happens because water molecules release heat into the atmosphere and become organized into a more closely packed structure, what we might see as water droplets.

Water is always present in the air around us as a vapor, but it's too small for us to see. When water undergoes the process of condensation it becomes organized into visible water droplets. You've probably seen condensation happen before on the surface of a cold drink!

Next Topic: Contrails

Weather Topic: What are Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

Next Topic: Cumulus Clouds