Hot, dry in Arizona with no sign of monsoon...yet

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by Kim Quintero

Bio | Email | Follow: @kimquintero

azfamily.com

Posted on June 22, 2013 at 5:30 PM

Updated Saturday, Jun 22 at 5:40 PM

PHOENIX -- Our weather pattern across the Valley of the Sun has seen little change for the past several days, and that seasonably hot, dry trend will continue into part two of the weekend.

A ridge of high pressure to our southeast is keeping temperatures close to normal for this time of year. In Phoenix on Sunday, the morning low should dip down to around 77 with an afternoon high of 106. Expect an encore performance both Monday and Tuesday.

Meanwhile, a trough of low pressure responsible for last week’s gusty winds across Northern Arizona has shifted out of the Pacific Northwest in a northeasterly direction towards Canada, allowing winds to die down into Sunday. Behind this system, a stronger trough of low pressure is moving into Northern California. We’re anticipating winds to kick up once again Monday across Northern Arizona. We very well could see Red Flag Warnings for critical fire weather issued then.

By midweek, the ridge of high pressure to our southeast will shift west into the Four Corners region. This ridge will force temperatures to soar from 110 to around 115 across most Valley communities from Wednesday through Saturday. We could see Excessive Heat Warnings issued at some point by the National Weather Service during this time frame.

As of now, the extended period looks thunderstorm-free, despite being more than a week into monsoon season thanks to a dry air mass flowing from the southwest, which is not conducive for thunderstorm development.

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