Weather Alert in Iowa
Winter Weather Advisory issued February 20 at 2:40AM CST until February 20 at 9:00AM CST by NWS La Crosse WI
AREAS AFFECTED: Mitchell; Winona; Fillmore; Trempealeau; Jackson
DESCRIPTION: ...MODERATE TO HEAVY SNOW EARLY THIS MORNING... .A winter storm is impacting the region early this morning and gradually winds down later this morning. The band of heaviest snow amounts is expected to be 30 to 40 miles at most. There will be a very sharp cutoff in amounts on the northwest side of the snow band with impacts varying greatly in the span of just a few miles. Road conditions will deteriorate quickly in the band of heavy snow with slippery to hazardous travel conditions expected. * WHAT...Snow with accumulations up to 3 inches. Winds gusting as high as 35 mph. * WHERE...In Iowa, Mitchell County. In Minnesota, Fillmore and Winona Counties. In Wisconsin, Jackson and Trempealeau Counties. * WHEN...Until 9 AM CST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Friday morning commute. * ADDITIONAL DETAILS...There will be a sharp cutoff in snow amounts across the advisory with the northwestward sections of counties in the advisory possibly getting little to no snow.
INSTRUCTION: Slow down and use caution while traveling. In Iowa, visit 511ia.org for road conditions. In Minnesota, visit 511mn.org for road conditions. In Wisconsin, visit 511wi.gov for road conditions.
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Weather Topic: What are Cirrostratus Clouds?
Home - Education - Cloud Types - Cirrostratus Clouds
Next Topic: Cirrus Clouds
Cirrostratus clouds are high, thin clouds that form above
20,000 feet and are made mostly of ice crystals. They sometimes look like giant
feathers, horse tails, or curls of hair in the sky.
These clouds are pushed by the jet stream and can move at high speeds reaching
100 mph.
What do they indicate?
They indicate that a precipitation is likely within 24 hours.
Next Topic: Cirrus Clouds
Weather Topic: What is Condensation?
Home - Education - Precipitation - Condensation
Next Topic: Contrails
Condensation is the process which creates clouds, and therefore
it is a crucial process in the water cycle.
Condensation is the change of matter from a state of gas into a state of liquid,
and it happens because water molecules release heat into the atmosphere and
become organized into a more closely packed structure, what we might see as
water droplets.
Water is always present in the air around us as a vapor, but it's too small for
us to see. When water undergoes the process of condensation it becomes organized
into visible water droplets. You've probably seen condensation happen before on the
surface of a cold drink!
Next Topic: Contrails
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