Weather Alert in Iowa
Winter Weather Advisory issued February 19 at 2:49AM CST until February 20 at 6:00AM CST by NWS Quad Cities IA IL
AREAS AFFECTED: Buchanan; Delaware; Dubuque; Benton; Linn; Jones
DESCRIPTION: * WHAT...Snow, blowing snow and some drifting is expected. Total snow accumulations between 3 and 5 inches. Localized totals up to 6 inches are possible. Winds gusting as high as 35 mph. * WHERE...Portions of east central and northeast Iowa. * WHEN...From 6 PM this evening to 6 AM CST Friday. * IMPACTS...Plan on slippery road conditions, blowing snow and minor drifting of snow. * ADDITIONAL DETAILS...There remains the potential for higher snowfall totals in this advisory. Uncertainty in where the snow band may set up remains and a last minute upgrade to a Winter Storm Warning cannot be ruled out. Snow will initially melt on area roadways before accumulating. The highest snowfall totals will be on grassy surfaces.
INSTRUCTION: Slow down and use caution while traveling. the latest road conditions are available at 511ia.org or by calling 511.
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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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