Air Quality Alert issued August 4 at 10:04AM MST by NWS Phoenix AZ
Issue date: 2026-08-04T17:04+00:00
AQAPSR The Arizona Department of Environmental Quality (ADEQ) has issued a PM-10 High Pollution Advisory for Pinal County Tuesday. An episode of strong and gusty winds is forecast to generate widespread blowing dust that may result in local PM-10 concentrations that pose a health risk. Adverse health effects increase as air quality deteriorates. Coarse particulate matter - also known as PM-10 - is an air contaminant that can aggravate heart and lung disease conditions, especially in older adults, children, and those with asthma. A decrease in physical activity is recommended. Consolidate your travel, stabilize loose soils, slow down or avoid travel on dirt roads, reduce or eliminate fireplace use, and avoid using gas-powered lawn equipment. For details on this High Pollution Advisory, visit the ADEQ internet site at www.azdeq.gov/forecast/WestPinal or call 602-771-2300.
Flood Watch issued August 4 at 8:04AM MST until August 4 at 11:00PM MST by NWS Tucson AZ
Issue date: 2026-08-04T15:04+00:00
* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Cochise County, Santa Cruz County, Sasabe and Arivaca, and Southeast Pima County. * WHEN...From 3 PM MST this afternoon through 11 PM this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Area creeks and streams are running high and could flood with more heavy rain. * ADDITIONAL DETAILS... - Expect another round of strong to severe thunderstorms with widespread heavy rainfall across south central Arizona. One inch per hour rainfall rates will be likely with isolated areas seeing 1-3 inches total. Portions of the Watch area received 1"-2" of rain yesterday, so this combined with heavy rainfall today will lead to excessive runoff and result in flash flooding. - http://www.weather.gov/safety/flood
Blowing Dust Advisory issued August 4 at 1:41AM MST until August 4 at 8:00PM MST by NWS Tucson AZ
Issue date: 2026-08-04T08:41+00:00
* WHAT...Visibility between one-quarter and one mile in blowing dust from thunderstorms developing after 2 pm can be expected. * WHERE...Chiricahua Mountains, Dragoon and Mule and Huachuca and Santa Rita Mountains, Eastern Cochise County below 5000 feet, Galiuro and Pinaleno Mountains, Upper Gila River Valley, and Upper San Pedro River Valley. * WHEN...From 2 PM this afternoon to 8 PM MST this evening. * IMPACTS...Hazardous driving conditions due to reduced visibility.
