
What Does AQI Mean? How to Read Air Quality Levels
The Air Quality Index turns pollution data into a simple number and color that can help you decide when to adjust outdoor plans.
A Weather Alert has been issued for a nearby area. While your current location is outside of the impacted area, please stay alert and monitor weather conditions. # SUMMARY -------------------- The National Weather Service in Tucson has extended the - Flash Flood Warning for... Northwestern Cochise County in southeastern Arizona... Southwestern Graham County in southeastern Arizona... Eastern Pima County in southeastern Arizona... Southeastern Pinal County in southeastern Arizona... Northeastern Santa Cruz County in southeastern Arizona... - Until 530 PM MST. - At 348 PM MST, Doppler radar and automated rain gauges indicated 1 to 2 inches of rain had fallen across eastern Pima county earlier today, with another round of light to moderate showers will move through over the next 90 minutes. Rainfall runoff on already saturated soils will result in swift water runoff...resulting in a persisting threat for flash flooding. Flash flooding of small streams like Sabino, Rincon and Tanque Verde Creeks will persist into the early evening. # DETAILS -------------------- HAZARD Flash flooding caused by heavy rain. SOURCE Radar and automated gauges. IMPACT Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE Tucson, Sahuarita, Green Valley, Oracle, Mammoth, Tubac, Davis-Monthan Air Force Base, Tanque Verde, Vail, Corona De Tucson, South Tucson, San Manuel, East Sahuarita, San Xavier Community, Sonoita, Mount Lemmon/Summerhaven, Saguaro National Park East, Sabino Canyon Recreation Area and Catalina Foothills. THIS INCLUDES THE FOLLOWING FLASH FLOOD PRONE LOCATIONS Harrison Rd at Pantano Wash, Agua Caliente Wash from Soldier Trl to Fort Lowell, Country Club Rd at Franco Wash, Wentworth Rd at Tanque Verde Wash, Tanque Verde Loop Rd at Tanque Verde Wash, Old Spanish Trl at Rincon Creek, Houghton Rd from I-10 & Sahuarita Rd, Santa Clara Ave at El Vado Wash, Escalante Rd at Atterbury Wash, River Rd at San Pedro River, Sahuarita Rd west of Wilmot Rd, Alamo Wash between Speedway and Grant, Andrada Rd east of Wentworth Rd, Camino Loma Alta at Rincon Creek, Drexel Rd east of Alvernon Way, Freeman Rd between Broadway and Old Spanish Trail, Limberlost Rd from Soilder Trail to Homestead Ave, Old Spanish Trail at Jeremy Wash, Old Vail COnnection Rd at Franco Wash, Calle Rinconada Rd from Andrada Rd to Sahuarita Rd and Snyder Rd from Kolb Rd to Sabino Canyon Rd. THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES Sheep Camp Wash, West Branch Santa Cruz River, Agua Verde Creek, Sonoita Creek, Stratton Wash, Redfield Canyon, Santa Cruz River, Sycamore Creek, Soza Wash, San Pedro River, Peñitas Wash, Oak Creek, Paddys River, Old Junction Wash, Aravaipa Creek, Fourmile Creek, Long Hollow, Papalote Wash, Oro, Cañada del, Guijas Wash, Las, Bird Canyon, Turkey Creek, Deer Creek, Klondyke Wash, Fortynine Wash, Rattlesnake Creek, Sabino Creek, Saucito Wash, Mud Spring Canyon, Cienega Creek, Apache Canyon, Arivaca Creek, Coyote Wash, Teran Wash, Sutherland Wash, Buehman Canyon, Chico, Arroyo, Esperero Wash, Redrock Creek, Josephine Canyon, Gibb Wash, Gardner Canyon, Chimney Rock Creek, Rincon Creek, Hot Springs Canyon, Squaw Creek, Rillito River, Bolas Blancas Wash, Mescal Arroyo, Paige Creek, Sopori Wash, Alder Wash, Pantano Wash, Bollen Wash, Ventana Canyon Wash, Bear Creek, Tanque Verde Wash, Agua Caliente Wash, Demetrie Wash, Martinez Wash, Ash Creek and Box Canyon Wash. ISSUED AT Sunday, November 1, 2026 at 3:48 PM MST ISSUED BY National Weather Service Tucson AZ HEADER BULLETIN - EAS ACTIVATION REQUESTED | Flash Flood Warning # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.
# HEADLINE -------------------- FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT # DETAILS -------------------- WHAT Flooding caused by excessive rainfall continues to be possible. WHERE A portion of Southeast Arizona, including the following areas, Baboquivari Mountains, Catalina and Rincon Mountains, Galiuro and Pinaleno Mountains, South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, Upper Santa Cruz River Valley/Altar Valley and White Mountains of Graham and Greenlee Counties. WHEN Through late tonight. IMPACTS Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. ADDITIONAL DETAILS - A strong weather system approaching the area will bring widespread showers today. Moderate to locally heavy rainfall with rainfall totals 0.5 to 1.25 inches possible in the valleys and 1 to 3 inches possible in the mountains. - http://www.weather.gov/safety/flood ISSUED AT Sunday, November 1, 2026 at 3:12 PM MST ISSUED BY National Weather Service Tucson AZ HEADER Flood Watch # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. # AREAS AFFECTED -------------------- Tucson Metro Area, Baboquivari Mountains, Catalina and Rincon Mountains, Galiuro and Pinaleno Mountains, South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Upper Gila River Valley, Upper Santa Cruz River Valley/Altar Valley, White Mountains of Graham and Greenlee Counties Including the cities of Picacho Peak State Park, Kitt Peak, Mount Graham, Summerhaven, Vail, Hannagan Meadow, Mammoth, Sells, Tucson, Green Valley, Nogales, Clifton, Safford, Marana, Mount Lemmon, and Oracle
There is a Marginal Severe Storm Risk for your location. Continue reading for today's outlook from the National Weather Service's Storm Prediction Center. -------------------- National Severe Storm Outlook THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF CENTRAL/EASTERN NEW MEXICO INTO THE OKLAHOMA/TEXAS PANHANDLES SUMMARY Thunderstorms capable of producing scattered severe/damaging winds and a few tornadoes will become a concern across much of New Mexico into the southern/central High Plains from late this afternoon through tonight. Isolated severe gusts and perhaps a tornado may also occur with convection across parts of Arizona this afternoon and evening. 20z Update No changes are needed this outlook cycle. Regional radar shows a broad area of precipitation continuing to overspread much of Arizona, associated with the lead short-wave trough. Thus far, this convective activity has remained sub-severe, though some enhancement in reflectivity and lightning activity is starting to occur along the leading edge in southeast AZ. The downstream airmass across portions of New Mexico has remained relatively clear, allowing for modest destabilization (500-1000 J/kg of MUCAPE) amid ample deep-layer shear. Given these observational trends, the expectation for a broken/low-topped line of thunderstorms emerging across eastern AZ into western/central NM by 20-00Z remains on track. In the wake of this activity, some clearing can be noted in southwest Arizona where a pocket of 500 J/kg of MLCAPE has emerged. An isolated severe wind and tornado threat remains possible if storms are able to redevelop in this region.

The Air Quality Index turns pollution data into a simple number and color that can help you decide when to adjust outdoor plans.










