Weather Alert in Minnesota
Winter Weather Advisory issued February 19 at 2:19AM CST until February 19 at 8:00AM CST by NWS Twin Cities/Chanhassen MN
AREAS AFFECTED: Wright; Hennepin; Ramsey; Washington; McLeod; Carver; Scott; Dakota; St. Croix; Pierce; Dunn
DESCRIPTION: ...CONTINUED LIGHT SNOW TONING AND SNOW COVERED ROADS WILL LEAD TO A SLOW COMMUTE THURSDAY MORNING... .Snow will slowly diminish through the rest of tonight from Morris and Alexandria, east into the Twin Cities and far western Wisconsin. Additional snow accumulations will be up to 1 inch, though the light snow will result in continue snow covered roads in Thursday morning, which will result in a slow commute Thursday morning. * WHAT...Snow. Additional snow accumulations up to one inch. * WHERE...In Minnesota, McLeod, Wright, Carver, Dakota, Hennepin, Ramsey, Scott, and Washington Counties. In Wisconsin, Dunn, Pierce, and St. Croix Counties. * WHEN...Until 8 AM CST this morning. * IMPACTS...Snow covered roads will lead to hazardous conditions impacting the Thursday morning commute.
INSTRUCTION: Slow down and use caution while traveling. In Minnesota, call 5 1 1 or visit 511mn.org for road conditions. In Wisconsin, call 5 1 1 or visit 511wi.gov for road conditions.
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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
Weather Topic: What are Cumulus Clouds?
Home - Education - Cloud Types - Cumulus Clouds
Next Topic: Drizzle
Cumulus clouds are fluffy and textured with rounded tops, and
may have flat bottoms. The border of a cumulus cloud
is clearly defined, and can have the appearance of cotton or cauliflower.
Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall,
becoming cumulus congestus and possibly the even taller cumulonimbus clouds.
When cumulus clouds become taller, they have a greater chance of producing precipitation.
Next Topic: Drizzle
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