Weather Alert in Maine
Winter Storm Watch issued February 21 at 12:45PM EST until February 24 at 4:00AM EST by NWS Caribou ME
AREAS AFFECTED: Southern Penobscot; Interior Hancock; Central Washington; Coastal Hancock; Coastal Washington; Northern Washington
DESCRIPTION: * WHAT...Heavy snow and blowing snow possible. Total snow accumulations greater than 6 inches possible, the highest totals will be in Downeast Maine. Winds could gust as high as 45 mph. * WHERE...Portions of Coastal DownEast, Far Eastern, Interior DownEast, and Penobscot Valley Maine * WHEN...From Monday morning through late Monday night. * IMPACTS...Visibilities may drop below one quarter mile due to falling and blowing snow. Whiteout conditions are possible and may make travel treacherous and potentially life-threatening. Travel could be very difficult. The hazardous conditions could impact the Monday morning and evening commutes.
INSTRUCTION: A Winter Storm Watch means there is potential for significant snow, sleet or ice accumulations that may impact travel. Continue to monitor the latest forecasts.
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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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