PHOENIX -- Monsoon 2014 brought a massive wall of dust into the Valley from the south Friday evening.
The dust storm grew to an estimated 50 miles wide and 3,000 feet tall, leaving a Dust Storm Warning from the National Weather Service in effect until 7 p.m.
The affected area included Phoenix, Coolidge, Casa Grande, Sacaton and portions of Interstate 10 between Phoenix and Casa Grande.
Motorists were urged to pull off the roadways due to reduced visibility.
The dust storm also affected some air travel. Sky Harbor International Airport said flights were still arriving and departing Friday evening, but FlightAware.com showed that all Phoenix-bound flights were held at their origins until 8 p.m. because of the low visibility.
Temperatures dropped as the winds picked up, with gusts reported at 45 mph, bringing some relief from the record-breaking heat earlier this week.
Isolated thunderstorms followed the dust in the East Valley, and gusty winds continued across the Phoenix metro area.
There were no reports of major damage from the storm, but SRP reported that about 10,000 customers had lost power. Power is expected to be restored by 10 p.m.
We have about 10,500 customers without power from tonight's storm. Thx for your patience if your power is out; crews working to restore ASAP— Salt River Project (@SRPconnect) July 26, 2014
Dust storm Warning for metro Phoenix until 7pm— Royal Norman (@royalnorman) July 25, 2014
Thanks to viewer Amanda Morrison in Case Grande, view of the dust coming in. pic.twitter.com/3vrOzcNcTg— 3TV News Desk (@3tvnewsdesk) July 25, 2014
Washes flooded in Apache Junction. Exercise caution. Thanks to 3TV Viewer Nancy W for picture pic.twitter.com/eM8FX48VKz— Royal Norman (@royalnorman) July 26, 2014