Weather Alert in Iowa
Special Weather Statement issued May 9 at 4:46AM CDT by NWS Sioux Falls SD
AREAS AFFECTED: Lyon; Lincoln; Lyon; Murray; Cottonwood; Nobles; Jackson; Pipestone; Rock; Beadle; Kingsbury; Brookings; Jerauld; Sanborn; Miner; Lake; Moody; Brule; Aurora; Davison; Hanson; McCook; Minnehaha; Douglas; Hutchinson; Turner; Lincoln
DESCRIPTION: Warm and very dry conditions are expected this afternoon, with humidity levels as low as 15 to 25 percent. Coupled with breezy west to northwest winds gusting up to 20-25 mph, fire danger conditions may reach near critical levels. Fire danger will be greatest in localized areas where grasses are still receptive to fire starts and spread. Isolated to scattered light showers during the late afternoon and evening will also bring a potential for isolated gusts up to 40 to 50 mph. This could result in erratic fire behavior. Check with local officials before attempting any outdoor burning today.
INSTRUCTION: N/A
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North America Water Vapor (Moisture)
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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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