PHOENIX — Monsoon storms pushed through the Valley overnight and into Thursday morning, bringing heavy downpours, frequent lightning, and high winds.
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Here are the latest updates on this weather event:
10:50 a.m.
Meteorologist Jorge torres says last night's East Valley dust storm officially ranks as a Category 2 with a peak dust concentration of 2,714 μg/m3.
Rain arrived right behind it and cleared the air.
7 a.m.
About 3,500 SRP customers are still without power in the Valley, while about 555 Valley APS customers are still without power.
5 a.m., Thursday
SRP says more than 7,000 customers are still without power in the Phoenix area.
APS is reporting fewer than 1,000 customers are still in the dark in the Phoenix area.
10:40 p.m.
SRP says more than 16,000 customers without power at this point because of the storms. That is a drop from the max of 23,000 without electricity at the highest point.
APS is reporting almost 10,000 customers in the dark as the storms move through.
10:25 p.m.
SRP reports almost 19,000 customers without power at this point because of the monsoon storms. That is a drop from the max of 23,000 without electricity at the highest point.
APS is reporting over 12,000 customers in the dark as the storms move through.
10:05 p.m.
SRP continues to report over 23,000 customers without power at this point because of the monsoon storms.
APS is now reporting about 2,900 customers in the dark as the storms move through.
9:55 p.m.
SRP is reporting over 23,000 customers without power at this point because of the monsoon storms.
APS is not reporting a significant number of outages at this point.
9:50 p.m.
Severe Thunderstorm Warning including Phoenix AZ, Mesa AZ and Chandler AZ until 10:30 PM MST pic.twitter.com/0OvhsRp4JW
— NWS Phoenix (@NWSPhoenix) August 20, 2026
9:45 p.m.
*Hazardous driving conditions are ongoing!*
— Arizona DOT (@ArizonaDOT) August 20, 2026
NEVER drive into a dust storm! If you are already on the road when a dust storm occurs, remember to Pull Aside, Stay Alive. https://t.co/UthBXcnjMX https://t.co/H5JDE9UUpU
9:25 p.m.
19 August 2026 9:20 PM MST: Strong winds and blowing dust are moving towards the southeast valley, with thunderstorms developing behind the outflow. A Dust Storm Warning has been issued for southeastern portions of the Metro area. Hazardous driving conditions are ongoing! #azwx pic.twitter.com/XI8Xd1TIxT
— NWS Phoenix (@NWSPhoenix) August 20, 2026
9:15 p.m.
A dust storm warning is in effect until 10:15 PM MST for I-10, I-17, US-60 near Phoenix--Mesa, AZ. pic.twitter.com/tX5TEtSjnr
— NWS Phoenix (@NWSPhoenix) August 20, 2026
9:05 p.m.
Severe Thunderstorm Warning including Chandler AZ, Gilbert AZ and Apache Junction AZ until 9:45 PM MST pic.twitter.com/zGG6WWHezJ
— NWS Phoenix (@NWSPhoenix) August 20, 2026
8:10 p.m.
19 August 2026 8:05 PM MST: A couple outflow boundaries are pushing towards the Greater Phoenix Area. Additional storms are forming behind these boundaries in a few places. Continue to monitor for alerts this evening! #azwx pic.twitter.com/BjkQ1MVDhV
— NWS Phoenix (@NWSPhoenix) August 20, 2026
2:45 p.m.
A severe thunderstorm watch has been issued for parts of Arizona until 11 PM MST pic.twitter.com/xD8rTnKQKf
— NWS Phoenix (@NWSPhoenix) August 19, 2026
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