Weather Alerts for Arizona

Recent Locations: Ruidoso, NM Tekoa, WA Glendale, 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 Advisory for: Pima, AZ; Santa Cruz, AZ

4. Dust Storm Warning for: Cochise, AZ

5. Dust Storm Warning for: Cochise, AZ

6. Dust Storm Warning for: Cochise, AZ

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

8. 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

9. Extreme Heat Warning for: Grand Canyon Country

10. 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

11. 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

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

13. 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

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Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

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 Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

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

Weather Topic: What is Drizzle?

Home - Education - Precipitation - Drizzle

Drizzle Next Topic: Evaporation

Drizzle is precipitation in the form of water droplets which are smaller than raindrops.

Drizzle is characterized by fine, gently falling droplets and typically does not impact human habitation in a negative way. The exception to this is freezing drizzle, a condition where drizzle freezes immediately upon reaching earth's surface. Freezing drizzle is still less dangerous than freezing rain, but can potentially result in hazardous road conditions.

Next Topic: Evaporation