Weather Alert in South Dakota
Winter Storm Warning issued March 14 at 12:26AM CDT until March 15 at 1:00AM CDT by NWS Aberdeen SD
AREAS AFFECTED: McPherson; Brown; Edmunds
DESCRIPTION: * WHAT...For the Winter Storm Warning, heavy snow and widespread blowing snow expected. Winds gusting as high as 40 mph. For the Blizzard Warning, blizzard conditions expected. Total snow accumulations for the event will be between 6 to 10 inches. Winds gusting as high as 50 mph. * WHERE...Edmunds, McPherson, and Brown Counties. * WHEN...For the Winter Storm Warning, from 1 PM this afternoon to 1 AM CDT Sunday. For the Blizzard Warning, from 1 AM to 7 PM CDT Sunday. * IMPACTS...Travel could be very difficult. Whiteout conditions will make travel extremely dangerous or impossible. Gusty winds could bring down tree branches.
INSTRUCTION: If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1. Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions can be obtained by calling 5 1 1.
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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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