Weather Alert in Maine
Winter Storm Warning issued February 20 at 1:10PM EST until February 21 at 7:00AM EST by NWS Gray ME
AREAS AFFECTED: Interior York; Southern Grafton; Southern Carroll; Sullivan; Merrimack; Belknap; Strafford; Cheshire; Western And Central Hillsborough
DESCRIPTION: * WHAT...Heavy snow. Total snow accumulations between 5 and 8 inches. * WHERE...Portions of southwest Maine and central, northern, and southern New Hampshire. * WHEN...Until 7 AM EST Saturday. * IMPACTS...A snowstorm will bring plowable snow to the region with a period of moderate travel impacts expected. Periods of moderate snow and low visibility will be the biggest hazards. The potential exists for snowbands that will bring periods of locally heavy snowfall, which will lead to rapid snow accumulations and extremely dangerous travel conditions. The hazardous conditions will impact the Friday evening commute.
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 going to newengland511.org
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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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