Weather Alert in Arizona
Dust Advisory issued September 2 at 5:27PM MST until September 2 at 6:30PM MST by NWS Tucson AZ
AREAS AFFECTED: Pinal, AZ
DESCRIPTION: The National Weather Service in Tucson has issued a * Dust Advisory for... Central Pinal County in southeastern Arizona... * Until 630 PM MST. * At 527 PM MST, an area of blowing dust was located 11 miles northeast of Picacho Peak State Park, moving northeast at 10 mph. HAZARD...Less than three miles visibility. SOURCE...Detected by National Weather Service meteorologists. IMPACT...Hazardous travel. * Locations impacted include... Oracle, Eloy, Saddlebrooke Ranch, Kearny, Picacho, Chui-Chu, Picacho Peak State Park, Red Rock, Cactus Forest, Shopishk, Kelvin and East Chui-Chu. This includes the following highways... Route 79 between mile markers 95 and 128. Route 87 between mile markers 116 and 124. Route 77 between mile markers 97 and 111. Route 177 between mile markers 141 and 158. Interstate 10 between mile markers 205 and 229.
INSTRUCTION: Motorists should not drive into an area of blowing dust. PULL ASIDE STAY ALIVE!
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Weather Topic: What is Hail?
Home - Education - Precipitation - Hail
Next Topic: Hole Punch Clouds
Hail is a form of precipitation which is recognized by large solid balls or
clumps of ice. Hail is created by thunderstorm clouds with strong updrafts of wind.
As the hailstones remain in the updraft, ice is deposited onto them until their
weight becomes heavy enough for them to fall to the earth's surface.
Hail storms can cause significant damage to crops, aircrafts, and man-made structures,
despite the fact that the duration is usually less than ten minutes.
Next Topic: Hole Punch Clouds
Weather Topic: What are Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Nimbostratus Clouds
A mammatus cloud is a cloud with a unique feature which resembles
a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly
in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form
under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds
warn that severe weather is close.
Next Topic: Nimbostratus Clouds
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