Weather Alert in New York
Winter Weather Advisory issued February 20 at 1:30AM EST until February 21 at 10:00AM EST by NWS Burlington VT
AREAS AFFECTED: Northern Franklin; Southeastern St. Lawrence; Southwestern St. Lawrence; Grand Isle; Western Franklin; Orleans; Essex; Western Chittenden; Lamoille; Caledonia; Washington; Western Addison; Western Rutland; Eastern Franklin; Eastern Chittenden
DESCRIPTION: * WHAT...Snow expected. Total snow accumulations between 3 and 7 inches. * WHERE...Portions of northern New York and Vermont. * WHEN...From 10 AM this morning to 10 AM EST Saturday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Friday evening commute. * ADDITIONAL DETAILS...Sections of the Northeast Kingdom are less likely to see snow arrive by the evening commute. Travel impacts are less likely across this area. Initially wet snow and 1"/hr rates are possible this evening before trending lighter. Isolated power outages could occur.
INSTRUCTION: Slow down and use caution while traveling. For the latest on road conditions in Vermont, visit https://newengland511.org and for New York, visit https://511ny.org.
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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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