Weather Alert in Iowa
Flood Watch issued June 26 at 10:09AM CDT until June 30 at 11:31PM CDT by NWS Des Moines IA
AREAS AFFECTED: Black Hawk
DESCRIPTION: ...The National Weather Service in Des Moines IA has issued a Flood Watch for the following rivers in Iowa... Cedar River at Cedar Falls affecting Black Hawk county. Cedar River at Waterloo affecting Black Hawk county. Winnebago River at Mason City affecting Cerro Gordo, Worth and Floyd counties. Shell Rock River at Shell Rock affecting Bremer, Black Hawk and Butler counties. Raccoon River at Des Moines Fleur Dr affecting Polk County. North Raccoon River near Perry affecting Dallas County. * WHAT...Flooding is possible. * WHERE...The Cedar River at Waterloo, or from the Waterloo-Cedar Falls city limits to Spring Creek near La Porte City. * WHEN...From Sunday morning to late Monday evening. * IMPACTS...At 13.0 feet, Many storm sewers are closed along Black Hawk Creek and the Cedar River. The Fletcher Ave levee gates are closed. * ADDITIONAL DETAILS... - At 9:00 AM CDT Thursday the stage was 8.6 feet. - Forecast...Flood stage may be reached Sunday morning. - Flood stage is 13.0 feet.
INSTRUCTION: For the latest waterway observations and forecasts refer to weather.gov/desmoines/water. River forecasts include observed precipitation plus forecast precipitation over the next 24 hours.
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Weather Topic: What is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
Weather Topic: What are Stratus Clouds?
Home - Education - Cloud Types - Stratus Clouds
Next Topic: Wall Clouds
Stratus clouds are similar to altostratus clouds, but form at a
lower altitude and are identified by their fog-like appearance, lacking the
distinguishing features of most clouds.
Stratus clouds are wider than most clouds, and their base has a smooth, uniform
look which is lighter in color than a nimbostratus cloud.
The presence of a stratus cloud indicates the possibility of minor precipitation,
such as drizzle, but heavier precipitation does not typically arrive in the form
of a stratus cloud.
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