Weather Alert in Minnesota
Winter Storm Watch issued March 13 at 2:27AM CDT until March 15 at 7:00PM CDT by NWS Twin Cities/Chanhassen MN
AREAS AFFECTED: Douglas; Todd
DESCRIPTION: ...DANGEROUS WINTER STORM LIKELY TO BRING EXTREME SNOW ACCUMULATIONS AND GUSTY WINDS... ...TRAVEL MAY BECOME IMPOSSIBLE LATE SATURDAY NIGHT AND SUNDAY... .A major winter storm will move across the Upper Midwest late Saturday into Sunday. Model guidance continues to illustrate a remarkable precipitation footprint across the region which will yield heavy snow accumulations on the order of 1 to 2 feet. Totals across portions of western and central Wisconsin could exceed 2 feet. The combination of heavy snow and gusty winds will reduce visibility and create periods of blizzard conditions on Sunday across western and southern Minnesota. Travel is expected to become very difficult or impossible late Saturday night and Sunday. In addition, the amount of water in the snowpack will make it wet and very heavy, leading to the potential for infrastructure damage and a health hazard for those shoveling. * WHAT...Heavy snow and blowing snow possible. Total snow accumulations between 6 and 12 inches possible. Winds could gust as high as 40 mph. * WHERE...Todd and Douglas Counties. * WHEN...From Saturday evening through Sunday evening. * IMPACTS...Travel could be very difficult. Widespread blowing snow could significantly reduce visibility.
INSTRUCTION: Monitor the latest forecasts for updates on this situation.
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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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