Weather Alert in Iowa

Recent Locations: Clarinda, IA   Oak Forest, IL  

Flood Watch issued June 26 at 10:37AM CDT until June 29 at 3:00AM CDT by NWS La Crosse WI

AREAS AFFECTED: Floyd

DESCRIPTION: ...The Flood Watch continues for the following rivers in Iowa... Cedar River at Charles City affecting Floyd County. * WHAT...Flooding is possible. * WHERE...Cedar River at Charles City. * WHEN...From Saturday morning to early Sunday morning. * IMPACTS...At 12.0 feet, Barricading of streets begins, and the intersection of Riverside and North Illinois Streets may be flooded. Cable pedestrian bridge is closed. * ADDITIONAL DETAILS... - At 10:30 AM CDT Thursday the stage was 4.7 feet. - Forecast...Flood stage may be reached late Saturday morning. - Flood stage is 12.0 feet. - http://www.weather.gov/safety/flood

INSTRUCTION: If you are in the watch area, remain alert to possible flooding. Additional river and weather information is available at www.weather.gov/lacrosse. The next statement will be issued this evening by 1045 PM CDT.

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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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