Weather Alert in New York
Lake Effect Snow Warning issued March 16 at 1:54PM EDT until March 17 at 8:00PM EDT by NWS Buffalo NY
AREAS AFFECTED: Jefferson; Lewis
DESCRIPTION: * WHAT...Heavy lake effect snow expected. Total snow accumulations 6 to 12 inches in the most persistent bands across the Tug Hill Plateau, with 3 to 5 inches elsewhere. Winds gusting as high as 45 mph will produce blowing and drifting snow late tonight through Tuesday. There may be a brief period of sleet and freezing rain during the transition to snow this evening, with ice accumulations of up to a tenth of an inch in some areas. * WHERE...Jefferson and Lewis Counties. * WHEN...From 9 PM this evening to 8 PM EDT Tuesday. * IMPACTS...Travel will be difficult with snow covered roads and poor visibility. The hazardous conditions will impact the Tuesday morning and evening commutes. Gusty winds will down tree branches and cause isolated power outages. * ADDITIONAL DETAILS...A rapid drop in temperatures late this evening may produce very icy conditions on untreated roads, sidewalks, and parking lots.
INSTRUCTION: Heavy snow will fall in relatively narrow bands. If traveling, be prepared for rapidly changing road conditions and visibilities. Submit snow reports through our website or social media.
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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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