Flash flood watch in effect for much of AZ - WFSB 3 Connecticut

UPDATE

Flash flood watch in effect for much of AZ

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There was a water rescue in Wickenburg on  Monday night. (Source: Shawn Kline, cbs5az.com) There was a water rescue in Wickenburg on Monday night. (Source: Shawn Kline, cbs5az.com)
PHOENIX (CBS5) -

A flash flood watch is in effect through Tuesday evening for the majority of Arizona.

Rain and thunderstorms will be developing across the Valley this morning as a low pressure system moving from the west will help pull up moisture from the south.

Still it's unsure whether the Valley will be left with any rain, CBS 5 meteorologist Katie Baker said.

There could be a few lingering showers or rainstorms on Wednesday before the moist air gets completely scoured out, Baker said.

That means Thursday and Friday will bring sunny skies with lower humidity levels, Baker said.  It's not quite the end of the monsoon, but it is another break in the action.

A storm in the southwest Valley played havoc with power and in Wickenburg, where a water rescue was necessary.

Power lines were downed by strong winds near Broadway and Miller roads in Buckeye on Monday night.

Arizona Public Service crews were still working to repair the downed lines Tuesday morning, but a spokesperson said there were no reports of residents without power.

In Wickenburg, emergency workers helped safely rescue a mother, her 6-month-old baby and two other small children from their home.

The flash flood watch was still in effect for Maricopa County early Tuesday, and Monday evening volunteers helped fill sand bags at Fire Station 57 in south Phoenix.

Firefighters said the sand was free, but if residents needed more than 10 bags,  they need to bring their own bags and a shovel to fill them with.

Humidity increased statewide as a low pressure system swung in from California on Monday.

"The ingredients will come together for another round of widespread storms overnight Monday night into Tuesday," CBS 5 Chief Meteorologist Chris Dunn said.

"While it's difficult to pinpoint the exact timing and location of these storms, I think the most likely time frame for the Valley is mid-to-late morning Tuesday," he added.

Flooding of urban areas and normally dry washes is likely.

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

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