Weather Warnings for Arizona

Issued by the National Weather Service

Current watches, warnings, and advisories for Arizona
Alerts Updated: August 12, 2026, 12:00 am  UTC


Severe Thunderstorm Warning issued August 11 at 4:39PM MST until August 11 at 5:30PM MST by NWS Tucson AZ

Summary: SVRTWC The National Weather Service in Tucson has issued a * Severe Thunderstorm Warning for... Central Greenlee County in southeastern Arizona... * Until 530 PM MST. * At 439 PM MST, a severe thunderstorm was located 13 miles northeast of Clifton, moving west at 5 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Morenci. This includes the following highways... Route 78 between mile markers 172 and 173. Route 191 between mile markers 166 and 204.
Severity:  Severe    Effective:  August 11, 2026, 4:39 pm      Expires:  August 11, 2026, 5:30 pm
Area:  Greenlee, AZ


Flash Flood Warning issued August 11 at 4:37PM MST until August 11 at 7:30PM MST by NWS Flagstaff AZ

Summary: FFWFGZ The National Weather Service in Flagstaff has issued a * Flash Flood Warning for... Gila County in east central Arizona... Navajo County in north central Arizona... * Until 730 PM MST. * At 437 PM MST, Doppler radar indicated thunderstorms producing heavy rain across the warned area including the Carrizo Creek and Corduroy Creek drainages near Carrizo. Between 0.75 and 1.75 inches of rain have fallen. Additional rainfall amounts of 0.25 to 0.5 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of creeks and streams, normally dry washes, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... Carrizo. This includes the following highways... Highway 60 between mile markers 313 and 322. State Route 73 between mile markers 311 and 315. This includes the following creeks, washes and rivers... Turkey Canyon, Carrizo Creek and Corduroy Creek.
Severity:  Severe    Effective:  August 11, 2026, 4:37 pm      Expires:  August 11, 2026, 7:30 pm
Area:  Gila, AZ; Navajo, AZ


Flood Advisory issued August 11 at 4:07PM MST until August 11 at 5:15PM MST by NWS Flagstaff AZ

Summary: * WHAT...Flooding caused by excessive rainfall continues. * WHERE...Flagstaff area in Coconino County in north central Arizona... * WHEN...Until 515 PM MST. * IMPACTS...Minor flooding in creeks and normally dry washes is imminent or occurring. Some streets and low-water crossings may become impassable. * ADDITIONAL DETAILS... - At 403 PM MST, Doppler radar indicated that rainfall intensity in the Flagstaff area has decreased. Heavy rain earlier this afternoon is leading to minor flooding. Between 0.75 and 1.5 inches of rain have fallen. - This includes the following creeks, washes and rivers... Schultz Creek, Clay Avenue Wash. Additional rainfall amounts of 0.15 to 0.25 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Flagstaff, Northern Arizona University, Country Club, Sunnyside, Railroad Springs, Downtown Flagstaff, Fort Valley, Cheshire, Coconino Estates, Mt Elden Estates, Mt. Elden, Dry Lake Hills, Schultz Pass, East Flagstaff, Riordan Mansion State Historic Park and Cheshire Park. - This includes the following highways... Interstate 40 between mile markers 194 and 200. Route 66 between mile markers 193 and 200. Highway 180 between mile markers 217 and 220. This includes the following recreation areas andcampgrounds... Buffalo Park, McPherson Park, Bushmaster Park, Woody Mountain Campground, Thorpe Park and Wheeler Park. - Additional information is available at weather.gov/flagstaff.
Severity:  Minor    Effective:  August 11, 2026, 4:07 pm      Expires:  August 11, 2026, 5:15 pm
Area:  Coconino, AZ


Flood Watch issued August 11 at 10:21AM MST until August 11 at 11:00PM MST by NWS Tucson AZ

Summary: * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Eastern Pima county including the Tucson Metro Area, Santa Cruz, Cochise Counties and the valleys of Graham and Greenlee Counties. * WHEN...From 2 PM MST this afternoon through 11 PM MST this evening. * IMPACTS...Excessive rainfall runoff may result in flash flooding of normally dry washes, roadway dips and other low-lying areas. * ADDITIONAL DETAILS... - Scattered to numerous thunderstorms are expected this afternoon into this evening. Rainfall rates in excess of 1 inch per hour are expected, with the stronger storms capable of producing total rainfall amounts between 1 to 3 inches. - Http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  August 11, 2026, 10:21 am      Expires:  August 11, 2026, 11:00 pm
Area:  Upper Santa Cruz River and Altar Valleys including Nogales; Tucson Metro Area including Tucson/Green Valley/Marana/Vail; Upper San Pedro River Valley including Sierra Vista/Benson; Eastern Cochise County Below 5000 Feet including Douglas/Willcox; Upper Gila River and Aravaipa Valleys including Clifton/Safford; Galiuro and Pinaleno Mountains including Mount Graham; Chiricahua Mountains including Chiricahua National Monument; Dragoon/Mule/Huachuca and Santa Rita Mountains including Bisbee/Canelo Hills/Madera Canyon; Santa Catalina and Rincon Mountains including Mount Lemmon/Summerhaven


Flood Watch issued August 11 at 10:21AM MST until August 11 at 11:00PM MST by NWS Tucson AZ

Summary: * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Central Pima county including the Tohono O'odham nation and Southeast Pinal county. * WHEN...From 2 PM MST this afternoon through 11 PM MST this evening. * IMPACTS...Excessive rainfall runoff may result in flash flooding of normally dry washes, roadway dips and other low-lying areas. * ADDITIONAL DETAILS... - Scattered to numerous thunderstorms are expected this afternoon into this evening. Rainfall rates in excess of 1 inch per hour are expected, with the stronger storms capable of producing total rainfall amounts between 1 to 3 inches. - Http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  August 11, 2026, 10:21 am      Expires:  August 11, 2026, 11:00 pm
Area:  Tohono O'odham Nation including Sells; South Central Pinal County including Eloy/Picacho Peak State Park; Southeast Pinal County including Kearny/Mammoth/Oracle; Baboquivari Mountains including Kitt Peak


Air Quality Alert issued August 11 at 9:36AM MST by NWS Phoenix AZ

Summary: AQAPSR The Arizona Department of Environmental Quality (ADEQ) has issued an Ozone High Pollution Advisory for Pinal County today. This means that forecast weather conditions combined with existing ozone levels are expected to result in local maximum 8-hour ozone concentrations that pose a health risk. Adverse health effects increase as air quality deteriorates. Ozone is an air contaminant which can cause breathing difficulties for children, older adults, as well as persons with respiratory problems. A decrease in physical activity is recommended. You are urged to car pool, telecommute or use mass transit. The use of gasoline-powered equipment should be reduced or done late in the day. For details on this High Pollution Advisory, visit the ADEQ internet site at www.azdeq.gov/forecast/WestPinal or call 602-771-2300.
Severity:  Unknown    Effective:  August 11, 2026, 9:36 am      Expires:  August 11, 2026, 9:00 pm
Area:  Pinal, AZ


Air Quality Alert issued August 10 at 9:56AM MST by NWS Phoenix AZ

Summary: AQAPSR The Arizona Department of Environmental Quality (ADEQ) has issued an Ozone High Pollution Advisory for the Phoenix Metro Area today through Tuesday. This means that forecast weather conditions combined with existing ozone levels are expected to result in local maximum 8-hour ozone concentrations that pose a health risk. Adverse health effects increase as air quality deteriorates. Ozone is an air contaminant which can cause breathing difficulties for children, older adults, as well as persons with respiratory problems. A decrease in physical activity is recommended. You are urged to car pool, telecommute or use mass transit. The use of gasoline-powered equipment should be reduced or done late in the day. For details on this High Pollution Advisory, visit the ADEQ internet site at www.azdeq.gov/forecast/phoenix or call 602-771-2300.
Severity:  Unknown    Effective:  August 10, 2026, 9:56 am      Expires:  August 11, 2026, 9:00 pm
Area:  Maricopa, AZ