Weather Alerts for Arizona

Recent Locations: Phoenix Sky Harbor International Airport, AZ

1. Blowing Dust Advisory for: Upper Gila River and Aravaipa Valleys including Clifton/Safford

2. Blowing Dust Advisory for: Upper San Pedro River Valley including Sierra Vista/Benson; Eastern Cochise County Below 5000 Feet including Douglas/Willcox

3. Dust Storm Warning for: Cochise, AZ

4. Dust Storm Warning for: Pima, AZ; Santa Cruz, AZ

5. Extreme Heat Warning for: Aguila Valley; Tonopah Desert; Gila Bend; Northwest Pinal County; West Pinal County; Sonoran Desert Natl Monument

6. Extreme Heat Warning for: Cave Creek/New River; New River Mesa; Rio Verde/Salt River; Fountain Hills/East Mesa; Superior; Apache Junction/Gold Canyon; Tonto Basin; San Carlos; Dripping Springs; Globe/Miami

7. Extreme Heat Warning for: Grand Canyon Country

8. Extreme Heat Warning for: Northwest Valley; Buckeye/Avondale; Deer Valley; Central Phoenix; North Phoenix/Glendale; Scottsdale/Paradise Valley; East Valley; South Mountain/Ahwatukee; Southeast Valley/Queen Creek

9. Extreme Heat Warning for: Parker Valley; Kofa; Yuma; Central La Paz; Southeast Yuma County; Gila River Valley; Imperial County Southwest; Imperial County Southeast; Imperial County West; Imperial Valley; Palo Verde Valley; Chuckwalla Valley

10. Extreme Heat Warning for: Upper Gila River and Aravaipa Valleys including Clifton/Safford

11. Extreme Heat Warning for: Western Pima County Including Ajo/Organ Pipe Cactus National Monument; Tohono O'odham Nation including Sells; Tucson Metro Area including Tucson/Green Valley/Marana/Vail; South Central Pinal County including Eloy/Picacho Peak State Park; Southeast Pinal County including Kearny/Mammoth/Oracle

12. Special Weather Statement for: Little Colorado River Valley in Navajo County; Little Colorado River Valley in Apache County; Northeast Plateaus and Mesas South of Hwy 264

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Current U.S. National Radar--Current

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National Weather Forecast--Current

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National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

Weather Topic: What are Altocumulus Clouds?

Home - Education - Cloud Types - Altocumulus Clouds

Next Topic: Altostratus Clouds

Similar to cirrocumulus clouds, altocumulus clouds are characterized by cloud patches. They are distinguished by larger cloudlets than cirrocumulus clouds but are still smaller than stratocumulus clouds.

Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km) and may resemble, at times, the shape of a flying saucer. These uncommon formations, called altocumulus lenticularis, are created by uplift in the atmosphere and are most often seen in close proximity to mountains.

Next Topic: Altostratus Clouds

Weather Topic: What are Cirrocumulus Clouds?

Home - Education - Cloud Types - Cirrocumulus Clouds

Next Topic: Cirrostratus Clouds

Cirrocumulus clouds form at high altitudes (usually around 5 km) and have distinguishing characteristics displayed in a fine layer of small cloud patches. These small cloud patches are sometimes referred to as "cloudlets" in relation to the whole cloud formation.

Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the water droplets in the cloud freeze into ice crystals and the cloud becomes a cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud formations generally pass rapidly.

Next Topic: Cirrostratus Clouds