Weather Alert in Arizona
Dust Storm Warning issued August 25 at 4:41PM MST until August 25 at 5:45PM MST by NWS Phoenix AZ
AREAS AFFECTED: Maricopa, AZ; Pinal, AZ
DESCRIPTION: The National Weather Service in Phoenix has issued a * Dust Storm Warning for... Maricopa County in south central Arizona... Pinal County in southeastern Arizona... * Until 545 PM MST. * At 441 PM MST, a wall of dust was along a line extending from near Freeman to near Olberg to near Magma, moving northwest at 30 mph. HAZARD...Near zero visibility with strong wind in excess of 50 mph. SOURCE...Trained weather spotters. IMPACT...Dangerous life-threatening travel. * This includes the following highways... AZ Interstate 10 between mile markers 129 and 178. AZ Interstate 17 between mile markers 195 and 202. AZ Route 51 between mile markers 1 and 3. Locations impacted include... Phoenix, Mesa, Chandler, Gilbert, Tempe, Avondale, Goodyear, Apache Junction, Tolleson, Laveen, Cashion, East Mesa, Gold Canyon, Sun Lakes, and Maricopa.
INSTRUCTION: Dust storms lead to dangerous driving conditions with visibility reduced to near zero. If driving, avoid dust storms if possible. If caught in one, pull off the road, turn off your lights and keep your foot off the brake.
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Weather Topic: What are Altostratus Clouds?
Home - Education - Cloud Types - Altostratus Clouds
Next Topic: Cirrocumulus Clouds
Altostratus clouds form at mid to high-level altitudes
(between 2 and 7 km) and are created by a warm, stable air mass which causes
water vapor
to condense as it rise through the atmosphere. Usually altostratus clouds are
featureless sheets characterized by a uniform color.
In some cases, wind punching through the cloud formation may give it a waved
appearance, called altostratus undulatus. Altostratus clouds
are commonly seen with other cloud formations accompanying them.
Next Topic: Cirrocumulus Clouds
Weather Topic: What are Cirrostratus Clouds?
Home - Education - Cloud Types - Cirrostratus Clouds
Next Topic: Cirrus Clouds
Cirrostratus clouds are high, thin clouds that form above
20,000 feet and are made mostly of ice crystals. They sometimes look like giant
feathers, horse tails, or curls of hair in the sky.
These clouds are pushed by the jet stream and can move at high speeds reaching
100 mph.
What do they indicate?
They indicate that a precipitation is likely within 24 hours.
Next Topic: Cirrus Clouds
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