Weather Alert in Maine
Winter Storm Warning issued February 22 at 12:51PM EST until February 23 at 10:00PM EST by NWS Gray ME
AREAS AFFECTED: Interior York; Southern Carroll; Merrimack; Belknap; Strafford; Cheshire; Western And Central Hillsborough
DESCRIPTION: * WHAT...Heavy snow expected. Total snow accumulations between 5 and 13 inches. Winds gusting as high as 45 mph. * WHERE...Portions of southwest Maine and central, northern, and southern New Hampshire. * WHEN...From midnight tonight to 10 PM EST Monday. * 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 Monday evening commute will be impacted. Strong gusty winds are expected with the snowstorm. The winds will combine with the dry snow to create dangerous blowing and drifting of snow. Localized periods of near zero visibility in open areas will lead to hazardous travel conditions. Gusty winds will blow around unsecured objects and break some tree limbs. The power outage threat is limited.
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 Persons should consider delaying all travel. Motorists should use extreme caution if travel is absolutely necessary.
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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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