Weather Alert in Arizona
Dust Advisory issued August 25 at 6:12PM MST until August 25 at 7:00PM MST by NWS Phoenix AZ
AREAS AFFECTED: Maricopa, AZ
DESCRIPTION: The National Weather Service in Phoenix has issued a * Dust Advisory for... Maricopa County in south central Arizona... * Until 700 PM MST. * At 612 PM MST, a wall of dust was along a line extending from near Table Mountain to near Cave Creek to 6 miles north of Deer Valley Airport, moving north at 25 mph. HAZARD...Less than one mile visibility with strong wind in excess of 50 mph. SOURCE...Doppler radar. IMPACT...Hazardous travel. * This includes AZ Interstate 17 between mile markers 225 and 241. Locations impacted include... New River, Cave Creek, Camp Creek, Black Canyon City Trailhead, Horseshoe Reservoir, Lake Pleasant, Anthem, and Seven Springs.
INSTRUCTION: Blowing dust brings reduced visibility, leading to dangerous driving conditions. If driving, avoid blowing dust if possible. If caught in dense blowing dust, pull off the road, turn off your lights and keep your foot off the brake.
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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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