Weather Alert in New Hampshire
Winter Weather Advisory issued April 4 at 1:46PM EDT until April 5 at 10:00AM EDT by NWS Gray ME
AREAS AFFECTED: Northern Grafton; Northern Carroll
DESCRIPTION: * WHAT...Mixed precipitation expected. Total sleet accumulations around one tenth of an inch, and ice accumulations up to one tenth of an inch. Winds gusting as high as 40 mph. * WHERE...Northern Carroll and Northern Grafton Counties. * WHEN...From midnight tonight to 10 AM EDT Sunday. * IMPACTS...A period of mixed precipitation is expected with air temperatures remaining below freezing. Expect slippery road conditions and avoid travel if possible. Even light snowfall amounts can accumulate on roads and cause dangerous driving conditions due to snow covered roads.
INSTRUCTION: Slow down and use caution while traveling. The latest road conditions can be obtained by going to newengland511.org
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North America Water Vapor (Moisture)
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Weather Topic: What is Condensation?
Home - Education - Precipitation - Condensation
Next Topic: Contrails
Condensation is the process which creates clouds, and therefore
it is a crucial process in the water cycle.
Condensation is the change of matter from a state of gas into a state of liquid,
and it happens because water molecules release heat into the atmosphere and
become organized into a more closely packed structure, what we might see as
water droplets.
Water is always present in the air around us as a vapor, but it's too small for
us to see. When water undergoes the process of condensation it becomes organized
into visible water droplets. You've probably seen condensation happen before on the
surface of a cold drink!
Next Topic: Contrails
Weather Topic: What are Cumulonimbus Clouds?
Home - Education - Cloud Types - Cumulonimbus Clouds
Next Topic: Cumulus Clouds
The final form taken by a growing cumulus cloud is the
cumulonimbus cloud, which is very tall and dense.
The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although
most commonly they stop growing at an altitude of 6 km.
Even small cumulonimbus clouds appear very large in comparison to other cloud types.
They can signal the approach of stormy weather, such as thunderstorms or blizzards.
Next Topic: Cumulus Clouds
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