Dust Storm in Ahwatukee | 0:36
A dust storm moves through Ahwatukee in the evening on Aug. 27, 2017. David Kadlubowski/azcentral.com
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How a NASA mission is learning to predict monsoons | 1:24
NASA’S Global Precipitation Measurement mission is gathering data in hopes of one day being able to forecast the breaks and surges of North America’s monsoon season.
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Phoenix Zoo cleans up after monsoon damage hits | 0:44
Kerri Baumann talks about the zoo closing for clean-up after a large monsoon hit and damaged many trees and some awnings the night before.
Patrick Breen/The Republic
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APS hurries to repair downed power poles on Shea Boulevard | 1:19
Arizona Public Service crews rush to repair or replace downed power poles along Shea Boulevard at 40th Street on Aug. 4, 2017, after a massive storm snapped the wooden poles in half. Tom Tingle/azcentral.com
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Power lines down on Shea Boulevard from massive storm | 1:07
Arizona Public Service workers repair downed power lines along Shea Boulevard near 39th Street Aug. 4, 2017, after a massive storm moved through the area the night before. Tom Tingle/azcentral.com
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Storm downs power lines in Phoenix | 0:38
Power lines are down on Shea Boulevard and 40th Street after a monsoon storm in Phoenix on Aug. 3, 2017. Rob Schumacher/azcentral.com
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Rains blow manhole covers at Sky Harbor | 0:24
Monsoon rains blow manhole covers at Terminal 4 in Phoenix Sky Harbor. Cheryl Evans/azcentral.com
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Monsoon storm in north Phoenix | 0:30
Views of the Monsoon storm in north Phoenix. Rob Schumacher/azcentral.com
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Storm damage outside Phoenix library branch | 0:32
Storm damage outside of Saguaro branch of Phoenix Library, 46th street south of Thomas Road, on Thursday, Aug. 4.
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Storm drops rain on Chandler | 0:30
Rain falls in Chandler during a monsoon storm on Aug. 3, 2017. Matt Self/azcentral.com
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Rain falls in Tempe | 0:25
Rain falls in Tempe on Aug. 3, 2017. Karina Bland/azcentral.com
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Rain pours at Desert Botanical Garden | 0:27
A storm shuts down the trails at the Desert Botanical Garden on Aug. 3, 2017. Zachary Hansen/azcentral.com
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Storm damage in east Phoenix | 0:23
Uprooted and damaged trees along 46th Street, south of Thomas Road, on Aug. 4.
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Toppled tree after monsoon storm | 0:08
A tree fell into the road at Thunderbird and Cave Creek roads during a storm on Aug. 3, 2017. Richard Obert/azcentral.com
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Heavy rain in downtown Phoenix | 0:28
Heavy rain falls in downtown Phoenix on Thursday, Aug. 3, 2017. Nick Oza/azcentral
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Double rainbow after storm moves through | 0:37
A double rainbow appears after a storm moves through metro Phoenix on Aug. 3, 2017.
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Driving in rainstorm in north Phoenix | 0:46
Driving in a rainstorm on East Cactus Road in north Phoenix on Aug. 3, 2017. Rob Schumacher/azcentral.com
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Light rain in Chandler | 0:12
Slow motion video of rain droplets in Chandler, Arizona on Aug. 1, 2017.
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Manhole cover blown at Phoenix airport | 0:14
Water erupts out of a manhole at Sky Harbor International Airport during a storm on Aug. 3, 2017. Michael Chow/azcentral.com
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Driver gets stuck on flooded street | 0:40
A woman who drove past a “road closed” sign on Citrus Road, just south of Interstate 10 in Goodyear, gets stuck in the mud and has to abandon her car after heavy rains soaked the Valley on July 24, 2017. Tom Tingle/azcentral.com
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Mesa Fire and Medical rescue in Apache Junction | 1:24
Mesa Fire and Medical crews rescued a stranded motorist in Apache Junction on July 24, 2017. Mesa Fire and Medical Department
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Apache Junction flooding | 0:40
Floodwaters race past the Apache Junction Police Department. Robert E. Wheeler Jr./Special for azcentral.com
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Monsoon weather in downtown phoenix | 0:17
People walk across the crosswalk at the start of a monsoon storm in downtown phoenix on July 29, 2017.
Mike Meister/The Republic
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Rain in Phoenix | 0:59
Rain falls in Phoenix on July 24, 2017. Nick Oza/azcentral.com
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Flooded street in Apache Junction | 0:09
Flooding in Apache Junction on S. Ocotillo Road. Robert Geist/azcentral.com
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San Tan Heights flooding | 0:53
Water running through the San Tan Heights subdivision off Hunt Highway in San Tan Valley on July 24, 2017. Robert Anglen/azcentral.com
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Wash floods in San Tan Valley | 0:21
Flooding in a wash in the San Tan Heights subdivision in San Tan Valley on July 24, 2017. Robert Anglen/azcentral.com
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Water rescue Mesa | 0:32
Mesa firefighters conduct a water rescue on Monday, July 24, 2017. (Mesa Fire and Medical Department)
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Rain and rushing water in east Mesa | 1:32
Water rushes along 64th Street just north of University Drive in east Mesa on Monday, July 24, 2017. (Wendy Killeen/The Republic)
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Ensenada Park in east Mesa | 0:52
Heavy rains create a large pool of water in Mesa’s Ensenada Park on July 24, 2017. Wendy Killeen/azcentral.com
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Rain soaks Mesa neighborhood | 0:42
Rainfall soaks 64th Street in Mesa on July 24, 2017. Wendy Killeen/azcentral.com
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Dust storm moves toward the Phoenix area | 0:25
A dust storm moves toward the Valley on July 23, 2017.
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Monsoon storm in Phoenix | 0:17
Rain near Seventh Street and Glendale Avenue in Phoenix on July 21, 2017. Lindsey Collom/azcentral.com
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Pouring rain at Power and Brown roads in east Mesa July 20, 2017 | 0:50
Lightning is flashing and rain is soaking east Mesa near Power and Brown roads Thursday night, July 20, 2017. Wendy Killeen/azcentral.com
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Riding out a monsoon windstorm in Phoenix | 0:23
A peach-faced lovebird rides out a monsoon windstorm in a mesquite tree in Phoenix on July 14, 2017. Rob Schumacher/azcentral.com
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Images from Friday’s Phoenix-area storm | 1:12
Images from the storm on July 14, 2017.
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Monsoon storm approaches in far West Valley | 0:35
An approaching monsoon storm near Surprise and Waddell kicks up a lot of dust on July 14, 2017. April Morganroth/azcentral.com
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Time-lapse of monsoon storm thunderhead building over Carefree | 2:40
Azcentral.com photographer Rob Schumacher shot this beautiful time-lapse video of monsoon storm thunderhead building over Carefree.
Rob Schumacher/The Republic
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Time-lapse view of monsoon storm from Broadway curve in Phoenix | 0:40
Azcentral.com photographer David Kadlubowski shot this beautiful time-lapse video of a monsoon storm in Phoenix.
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Storm downs tree in Gold Canyon | 0:14
A tree that fell over during a storm on July 10, 2017, is disposed of in Gold Canyon. Loren Townsley/azcentral.com
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Watch a dust storm move across the East Valley | 0:27
A dust storm moves across the East Valley during a monsoon storm July 10, 2017.
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Monsoon rains hit far West Valley | 10:24
A microburst drops some rain near Waddell on July 10, 2017.
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Clouds form over Mount Lemmon | 0:33
Meteorologists’ video of storm clouds as they form and evaporate and reform and evaporate over Mount Lemmon on Aug. 17, 2006. Video shot by Joseph Zehnder; Weldon B. Johnson/azcentral.com
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Downtown Phoenix, July 15, 2017 | 0:11
Newspaper stands are knocked over as a thunderstorm makes it’s way through Phoenix.
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Surprise/Waddell monsoon storm | 1:26
Wind and rain start to pick up in Northwest Valley.
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Dust Storm in Ahwatukee
How a NASA mission is learning to predict monsoons
Phoenix Zoo cleans up after monsoon damage hits
APS hurries to repair downed power poles on Shea Boulevard
Power lines down on Shea Boulevard from massive storm
Storm downs power lines in Phoenix
Rains blow manhole covers at Sky Harbor
Monsoon storm in north Phoenix
Storm damage outside Phoenix library branch
Storm drops rain on Chandler
Rain falls in Tempe
Rain pours at Desert Botanical Garden
Storm damage in east Phoenix
Toppled tree after monsoon storm
Heavy rain in downtown Phoenix
Double rainbow after storm moves through
Driving in rainstorm in north Phoenix
Light rain in Chandler
Manhole cover blown at Phoenix airport
Driver gets stuck on flooded street
Mesa Fire and Medical rescue in Apache Junction
Apache Junction flooding
Monsoon weather in downtown phoenix
Rain in Phoenix
Flooded street in Apache Junction
San Tan Heights flooding
Wash floods in San Tan Valley
Water rescue Mesa
Rain and rushing water in east Mesa
Ensenada Park in east Mesa
Rain soaks Mesa neighborhood
Dust storm moves toward the Phoenix area
Monsoon storm in Phoenix
Pouring rain at Power and Brown roads in east Mesa July 20, 2017
Riding out a monsoon windstorm in Phoenix
Images from Friday’s Phoenix-area storm
Monsoon storm approaches in far West Valley
Time-lapse of monsoon storm thunderhead building over Carefree
Time-lapse view of monsoon storm from Broadway curve in Phoenix
Storm downs tree in Gold Canyon
Watch a dust storm move across the East Valley
Monsoon rains hit far West Valley
Clouds form over Mount Lemmon
Downtown Phoenix, July 15, 2017
Surprise/Waddell monsoon storm
Monsoon storms building east of Phoenix were beginning to move into the far East Valley on Friday evening and could move through much of the metro area as the night progresses, bringing heavy rain, gusty winds, blowing dust and lots of lightning.
The National Weather Service in Phoenix tweeted out satellite images just before 7 p.m. showing a broad band of storms east of the Valley, moving in a west and northwest direction.
A flash flood warning was issued for Apache Junction and Gold Canyon until 11 p.m. Friday, as heavy rains were reported in those areas and east Mesa.
Streets already were flooding in some areas., the Apache Junction police tweeted:
The weather service earlier had predicted increasing chances of storms into the evening.
Also, flash-flood watches have been extended in other areas of the state.
A flash-flood watch issued late Thursday has been extended through Saturday at 5 p.m. for western Yavapai and western Coconino counties. This warning includes Supai Village and the Grand Canyon.
Increasing moisture will bring to these areas northward-moving showers and thunderstorms that are capable of producing 2 inches of rain an hour, according to the National Weather Service.
Justin Johndrow, a meteorologist with the National Weather Service in Flagstaff, said a watch is issued when there is a possibility of flash flooding but covers a much larger and less-specific area than a flash-flood warning does.
“It doesn’t mean that flooding has developed or is imminent; in those situations, we will issue a flash-flood warning,” Johndrow said.
National Weather Service meteorologist Mark O’Malley said that while not every area will see rain Friday evening, most areas were expected to see wind, dust and lightning.
There is a slight chance of showers Saturday morning in Phoenix, but O’Malley said the majority of the weather should hit Friday night.
He said some sun will peek through Friday and temperatures will likely still be in the 90s, but they are expected to cool down a bit Saturday.
“Tomorrow should be a nice, cloudy, cooler day for the beginning of September,” O’Malley said.
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