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 are Fractus Clouds?
Home - Education - Cloud Types - Fractus Clouds
Next Topic: Freezing Rain
A fractus cloud (scud) is a fragmented, tattered cloud which has
likely been sheared off of another cloud. They are accessory clouds, meaning they
develop from parent clouds, and are named in a way which describes the original
cloud which contained them.
Fractus clouds which have originated from cumulus clouds are referred to as
cumulus fractus, while fractus clouds which have originated from stratus clouds
are referred to as stratus fractus. Under certain conditions a fractus cloud might
merge with another cloud, or develop into a cumulus cloud, but usually a
fractus cloud seen by itself will dissipate rapidly.
They are often observed on the leading and trailing edges of storm clouds,
and are a display of wind activity.
Next Topic: Freezing Rain
Weather Topic: What is Graupel?
Home - Education - Precipitation - Graupel
Next Topic: Hail
Graupel is a form of precipitation that is created by atmospheric conditions
which cause supercooled water droplets to contact snow crystals and freeze to
their surface.
Sometimes known as soft hail or snow pellets, graupel is delicate and easily
destroyed by touch. Whereas hail usually falls during severe weather, graupel
doesn't require such conditions to form, and can form in mild precipitation
similar to situations which produce snowfall.
Next Topic: Hail
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