Weather Alert in Iowa

Recent Locations: Bailey, MS   Harlan, IA  

Flood Watch issued August 9 at 2:39AM CDT until August 11 at 7:00AM CDT by NWS La Crosse WI

AREAS AFFECTED: Clayton; Crawford; Richland; Grant

DESCRIPTION: * WHAT...Flooding caused by excessive rainfall continues to be possible. Current forecasts call for 3-5 inches of rainfall through Monday. * WHERE...Portions of northeast Iowa, including the following county, Clayton and southwest Wisconsin, including the following counties, Crawford, Grant and Richland. * WHEN...From this afternoon through Monday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Multiple rounds of thunderstorms and heavy rain are possible from Saturday afternoon into Monday morning. - http://www.weather.gov/safety/flood

INSTRUCTION: You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

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Weather Topic: What is Condensation?

Home - Education - Precipitation - Condensation

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

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