Phoenix weather: Quiet weather kicks off Monday, strong storms to follow


by Kim Quintero

Bio | Email | Follow: @kimquintero

Posted on July 15, 2013 at 8:03 AM

Updated Monday, Jul 15 at 8:21 AM

PHOENIX -- It was another warm and humid start to the day. Temps Monday morning kicked off in the upper 80s and low 90s across the Valley with dew points in the low 60s.

Monday should be mostly sunny and dry for almost all of the Valley. We have a very marginal chance of an isolated shower or storm after 4 p.m. We’re forecasting a high this afternoon in Phoenix of 109.

Our mountains will see scattered thunderstorms developing late morning and early afternoon.

We’ve got our best chance for storms late day Tuesday through Wednesday, and potentially lasting through the rest of the week as an unusual area of low pressure tracks into Arizona from the east. This will reinforce our monsoon moisture and instability in the atmosphere. All in all, our threats will be heavy rainfall, gusty winds, blowing dust and localized hail from any cells that do develop.

Temperatures will drastically cool, too, although humidity will be high. We’re  forecasting a high Tuesday of only 102, with temps hovering around 100 for the remainder of the week.

We do have a threat of severe weather for our central mountains Tuesday, stretching from Flagstaff into Sedona, Payson and Show Low. Here, we could see hail up to 1 inch in diameter, heavy rain and flash flooding from any severe storms that do develop.

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