Weather Alert in New Hampshire
Winter Weather Advisory issued March 5 at 1:36PM EST until March 6 at 1:00PM EST by NWS Gray ME
AREAS AFFECTED: Cheshire; Eastern Hillsborough; Interior Rockingham; Coastal Rockingham; Western And Central Hillsborough
DESCRIPTION: * WHAT...Mixed precipitation expected. Total snow and sleet accumulations between 2 and 4 inches and ice accumulations around one tenth of an inch. * WHERE...Western and Central Hillsborough, Cheshire, Coastal Rockingham, Eastern Hillsborough, and Interior Rockingham Counties. * WHEN...From 6 PM this evening to 1 PM EST Friday. * IMPACTS...Difficult travel conditions are possible due to slippery road conditions. This is especially true on untreated side roads. The hazardous conditions could impact the Friday morning commute. * ADDITIONAL DETAILS...Precipitation will likely begin as sleet or freezing rain and turn to snow within a few hours of onset. Snow may be briefly moderate to heavy at times.
INSTRUCTION: Slow down and use caution while traveling. The latest road conditions can be obtained by going to newengland511.org Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.
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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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