Fold up and stash that lawn furniture. High winds and blowing dust that moved through the Phoenix area Monday night may make a return appearance for a second night on Tuesday, prompting warnings for people with unsecured items outdoors to take precautions.
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Monday’s storms produced wind gusts in excess of 40 miles per hour and locally reduced visibility to less than 2 miles in some areas, conditions that left parts of the city shrouded in dust as darkness fell. Drivers negotiating the roadways encountered markedly diminished sight lines while gusts churned through neighborhoods and across major corridors.
Drivers pass a gas station at night as dust and strong winds blow through Phoenix, visibly reducing roadway visibility during the dust storm.
The event on Monday night included sweeping corridors of airborne dust that moved through suburbs and open areas, creating the kind of dense, low-lying walls of dust that can briefly transform the skyline and make travel more difficult. Forecasters and reports described gusts topping 40 mph and visibility dropping below two miles in isolated pockets as the storms passed.
A massive dust wall (haboob) moves over Phoenix suburbs — the kind of sweeping dust event forecasters say could return for a second consecutive night.
City residents were advised to secure outdoor items as the threat of another night of high winds and dust loomed. The succinct advisory to "fold up and stash that lawn furniture" underscored the immediate, practical step homeowners and renters could take to reduce the risk of loose objects being carried by gusts. The same conditions that lift dust into the air — strong, gusty winds across exposed surfaces — also increase the likelihood that patio chairs, umbrellas and other lightweight items will be displaced.
The expectation of a second consecutive night of windy, dusty conditions came after the initial round of dust storms passed through. Officials and those tracking the situation noted the persistence of the wind pattern into the next overnight period, with the possibility that the same broad area of gusty winds and reduced visibility could affect parts of the Phoenix metro once more on Tuesday night.
For residents and motorists, the sequence — a night of intense gusts and blowing dust followed by the potential for another night of similar conditions — emphasized the need for immediate precautions and awareness of changing visibility on the roads. The short-term forecast called for another overnight window during which winds could again raise dust and temporarily limit visibility in stretches of the metro area.
In sum: Phoenix experienced dust storms Monday night with gusts above 40 mph and visibility falling below 2 miles in places, and similar conditions could return the following night. The simple, repeated instruction for those with outdoor furniture or unsecured belongings was to fold up and put those items away until the threat of high winds and blowing dust had passed.
The Monday night dust storm was rated a rare Category 5 on Arizona State University's Phoenix Dust Storm Scale, only the fifth such event in the past 16 years. It lasted 15 hours with peak dust concentrations exceeding 6,000 μg/m³ — the second-highest ever recorded in the Valley — according to ASU researchers.
The National Weather Service in Phoenix issued a Dust Advisory for Maricopa County that was allowed to expire at 11:46 PM MST on Monday, August 3, 2026, noting the blowing dust had dissipated though areas of low visibility could persist; the NWS reiterates standard safety guidance for motorists during dust events—pull off the roadway if visibility collapses, turn off lights, set the emergency brake, and avoid travel if possible.
Arizona State University’s PHX‑DUST monitoring framework draws on roughly 22 air‑monitoring sites across the Valley and classifies events using maximum hourly PM10 values, the number of stations exceeding a 500 μg/m3 threshold, duration, and wind; ASU’s published materials show the most extreme event in their archive occurred July 5, 2011, with an hourly PM10 peak of about 6,348 μg/m3.