Extreme Heat Warning

until FRI 8:00 PM MST, Aguila Valley, Northwest Pinal County, Northwest Valley, Globe/Miami, South Mountain/Ahwatukee, Scottsdale/Paradise Valley, East Valley, North Phoenix/Glendale, Gila Bend, Tonopah Desert, Superior, Central Phoenix, Rio Verde/Salt River, Southeast Valley/Queen Creek, Cave Creek/New River, Dripping Springs, West Pinal County, Apache Junction/Gold Canyon, San Carlos, Sonoran Desert Natl Monument, Fountain Hills/East Mesa, Tonto Basin, Buckeye/Avondale, Deer Valley

Extreme Heat Warning

from THU 10:00 AM MST until FRI 9:00 PM MST, Tucson Metro Area including Tucson/Green Valley/Marana/Vail, Upper San Pedro River Valley including Sierra Vista/Benson, Upper Gila River and Aravaipa Valleys including Clifton/Safford, Western Pima County including Ajo/Organ Pipe Cactus National Monument, South Central Pinal County including Eloy/Picacho Peak State Park, Upper Santa Cruz River and Altar Valleys including Nogales, Tohono O'odham Nation including Sells, Eastern Cochise County below 5000 ft including Douglas/Wilcox, Southeast Pinal County including Kearny/Mammoth/Oracle

Red Flag Warning

from THU 11:00 AM MST until FRI 11:00 PM MST, Northwest Deserts/Northwest Plateau, Lake Mead NRA/Colorado River-AZ side

Extreme Heat Warning

until FRI 7:00 PM MST, Grand Canyon Country

Extreme Heat Warning

until THU 10:00 PM MST, Lake Havasu and Fort Mohave, Northwest Deserts, Lake Mead National Recreation Area

Fire Weather Watch

from FRI 9:00 AM MDT until SAT 9:00 PM MDT, Black Mesa Area, Chinle Valley, Chuska Mountains and Defiance Plateau, Northeast Plateaus and Mesas South of Hwy 264, Northeast Plateaus and Mesas Hwy 264 Northward

Fire Weather Watch

from FRI 8:00 AM MST until SAT 8:00 PM MST, Little Colorado River Valley in Navajo County, Coconino Plateau, Little Colorado River Valley in Coconino County, Western Mogollon Rim, Little Colorado River Valley in Apache County, Eastern Mogollon Rim, White Mountains, Yavapai County Mountains

Why a new study says you should avoid crowds

Evidence is mounting coronavirus could spread through air. A new study investigated airborne particles, known as aerosols and their role in disseminating COVID-19. Dr. Oz has the details.

Posted May 4, 2020 10:03am MST

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