Phoenix weather: Big rain possible this weekend

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by Kim Quintero

Bio | Email | Follow: @kimquintero

azfamily.com

Posted on August 22, 2013 at 8:39 AM

Updated Monday, Aug 26 at 12:27 PM

PHOENIX -- Many of the rain-deprived who call the desert home are hoping early indications of a wet weekend come to fruition.

Forecasting models show monsoon moisture is expected to increase across Arizona Saturday afternoon. Meanwhile, the National Hurricane Center is giving a cluster of thunderstorms south of Baja California a 90 percent chance of developing into a tropical system within the next two days before drifting north. These two ingredients are expected to bring copious amounts of rain throughout most of Arizona, including the Valley, through the first half of next week.

It’s hard to pinpoint when the bulk of the rain will fall, but as of now, forecasting models indicate Sunday will be the wettest day as a trough sweeps through the area.

Temperatures are also expected to cool dramatically across the Valley. Afternoon highs should top out from the mid 90s to right around the century mark this weekend.

For now, we’re looking at a low grade monsoon through Friday. Isolated storms are expected to develop first in the higher terrain and east of Phoenix Thursday afternoon. The Valley will keep a small chance of a stray shower or storm through the evening hours. Thursday’s afternoon high in Phoenix is expected to hit 104 with an overnight low of 85.

Friday’s storm pattern should see little change with a high in Phoenix of 106.

Get the latest forecast for your neighborhood

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