Weather Alert in Iowa
Red Flag Warning issued March 26 at 9:56PM CDT until March 27 at 9:00PM CDT by NWS Des Moines IA
AREAS AFFECTED: Crawford; Carroll; Greene; Audubon; Guthrie; Dallas; Polk; Cass; Adair; Madison; Warren; Adams; Union; Clarke; Lucas; Taylor; Ringgold; Decatur; Wayne
DESCRIPTION: ...Critical Fire Weather Conditions Expected Friday and Saturday... .Breezy northwest winds, along with cured fuels and low RH values in the 20s, especially over southwest to west central Iowa Friday afternoon to evening will lead to critical fire weather conditions. Saturday will feature even gustier winds, along with lower RH values, warming temperatures and dry fuels will lead to continued critical fire weather conditions. Burning is not recommended. * AFFECTED AREA...Parts of southwest to west central Iowa. * WIND...For Friday, Northwest winds at 10-15 mph, gusting to 20-30 mph. For Saturday, Southwest winds at 20-25 mph, gusting to 30-40 mph. * HUMIDITY...For Friday, minimum values of 20-25 percent. For Saturday, minimum values of around 15 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended.
INSTRUCTION: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.
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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.
Next Topic: Wall Clouds
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