Monsoon moisture triggers more AZ storms - Fox29 WFLX TV, West Palm Beach, Florida-

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Monsoon moisture triggers more AZ storms

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Our news helicopter captured a dust storm blanketing Casa Grande early Tuesday afternoon. (Source: CBS 5 News) Our news helicopter captured a dust storm blanketing Casa Grande early Tuesday afternoon. (Source: CBS 5 News)
Tuesday's storms dumped heavy rain and sparked some power outages for APS customers. (Source: CBS 5 News) Tuesday's storms dumped heavy rain and sparked some power outages for APS customers. (Source: CBS 5 News)
Damage from Sunday night's storm was seen at Davis-Monthan Air Force Base in southern Arizona. (Source: Davis-Monthan AFB) Damage from Sunday night's storm was seen at Davis-Monthan Air Force Base in southern Arizona. (Source: Davis-Monthan AFB)
Rain came down in buckets in East Mesa just after 2 p.m. (Source: Diane Kirkpatrick) Rain came down in buckets in East Mesa just after 2 p.m. (Source: Diane Kirkpatrick)
The past few days have been quite active and Tuesday was no exception. (Source: CBS 5 News) The past few days have been quite active and Tuesday was no exception. (Source: CBS 5 News)
PHOENIX (CBS5) -

A new round of storms flared up Tuesday afternoon amid a strong surge of monsoon moisture dumping heavy rain and sparking power outages.  

"With plenty of moisture in the air and light winds to steer the storms, slow-moving heavy downpours could result in localized flooding," said CBS 5 Chief Meteorologist Chris Dunn.

He added the storms were affecting "only localized pockets in the area."

Central Maricopa County had been under a flash flood warning for several hours. Among the target areas were Scottsdale, Mesa and Fountain Hills.

Dunn said a foot of water was seen flowing in the Indian Bend wash.

Arizona Public Service said it had about 1,800 customers without power due to a downed line. The boundaries stretched from Peoria south to Dunlap and Mountain View to Cave Creek. Power was fully restored just before 5 p.m.

At around 4:30 p.m., authorities at Phoenix Sky Harbor International Airport said there was a 15-minute delay for departures and arrivals.

A blowing dust advisory that had been in effect until 5 p.m. for Phoenix, Scottsdale and Mesa was allowed to expire, Dunn said.

"Not everyone will see the storms," Dunn said. "They will tend to set up in select areas, so drenching downpours for some, a mainly dry but still humid day for others."

Earlier in the afternoon, Gila Bend was under a blowing dust advisory for a time for winds gusting between 20 and 30 mph.   

Over the noon hour, a strong thunderstorm was reported near San Tan Mountain Park. The storm carried wind gusts of up to 50 mph.

In Superior, there were reports of 6-inch deep flood waters inundating Main Street. Flooding was also reported on Highway 60 east of Superior.  

The past few days have been quite active, dominated by the presence of a monsoon surge of moisture interacting with unstable air.

On Sunday night, severe winds and heavy rain damaged several buildings at Davis-Monthan Air Force Base. A lightweight F-16 fighter aircraft flipped onto another F-16. The steel cable tie-downs used to secure the aircraft to the desert floor snapped as a result of the gusting winds associated with the storm.

Dunn said drier air will start to move in on Wednesday, bringing calmer weather for the end of the week.

Copyright 2014 CBS 5 (KPHO Broadcasting Corporation). All rights reserved.

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