Weather Alert in North Carolina
Special Weather Statement issued February 26 at 10:38PM EST by NWS Blacksburg VA
AREAS AFFECTED: Surry; Stokes; Rockingham; Caswell; Yadkin; Patrick; Henry; Pittsylvania; Halifax
DESCRIPTION: Areas of dense fog will continue to develop across the VA/NC border this evening, with KDAN and KMTV already having reported 1/4 and 1/2 mile visibility respectively this evening. If you encounter dense fog while driving, turn on your low beam headlights, slow down, and keep your distance from other vehicles.
INSTRUCTION: N/A
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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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