Weather Alert in Minnesota
Winter Weather Advisory issued February 27 at 2:49AM CST until February 28 at 6:00PM CST by NWS Twin Cities/Chanhassen MN
AREAS AFFECTED: Brown; Nicollet; Le Sueur; Blue Earth; Waseca; Steele; Freeborn
DESCRIPTION: ...A PERIOD OF HEAVY SNOW ON SATURDAY... .A band of heavy snow with rates of an inch per hour are likely Saturday. This band could have sudden drops in visibility as those traveling enter into it. The rate of the snowfall is the primary risk with snow totals more in the 1 to 4 inch range. * WHAT...Snow expected. Total snow accumulations between 1 and 4 inches. * WHERE...Blue Earth, Brown, Freeborn, Le Sueur, Nicollet, Steele, and Waseca Counties. * WHEN...From 6 AM to 6 PM CST Saturday. * IMPACTS...Plan on slippery road conditions.
INSTRUCTION: Slow down and use caution while traveling. Call 5 1 1 or visit 511mn.org for road conditions.
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Weather Topic: What are Cirrus Clouds?
Home - Education - Cloud Types - Cirrus Clouds
Next Topic: Condensation
Cirrus clouds are high-level clouds that occur above 20,000 feet
and are composed mainly of ice crystals.
They are thin and wispy in appearance.
What do they indicate?
They are often the first sign of an approaching storm.
Next Topic: Condensation
Weather Topic: What are Contrails?
Home - Education - Cloud Types - Contrails
Next Topic: Cumulonimbus Clouds
A contrail is an artificial cloud, created by the passing of an
aircraft.
Contrails form because water vapor in the exhaust of aircraft engines is suspended
in the air under certain temperatures and humidity conditions. These contrails
are called exhaust contrails.
Another type of contrail can form due to a temporary reduction in air pressure
moving over the plane's surface, causing condensation.
These are called aerodynamic contrails.
When you can see your breath on a cold day, it is also because of condensation.
The reason contrails last longer than the condensation from your breath is
because the water in contrails freezes into ice particles.
Next Topic: Cumulonimbus Clouds
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