Phoenix weather: Weak system brings slight chance of rain to Ariz.

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by Kim Quintero

Bio | Email | Follow: @kimquintero

azfamily.com

Posted on December 11, 2013 at 5:23 PM

Updated Wednesday, Dec 11 at 5:40 PM

PHOENIX -- The warmer temperatures will be halted by the end of the week as a weak system brings the chance of rain to the forecast.

An area of low pressure off the coast of California is set to sweep through Arizona Thursday. The Valley will have a 10 to 20 percent chance of rain between noon and 9 p.m. Thursday. Any locations that see the isolated shower activity will likely only get trace rain totals at best. Mountain locations that receive rain will see totals of up to .10 inches. The higher elevations may get up to an inch of snow through Thursday night.

After the system moves out, high pressure will start to build into the region from the west. Our warming trend will be halted through Saturday before that ridge shifts more inland and to the east.

Thursday morning, look for Valley lows to dip to the 40s. We're forecasting a high in Phoenix of 70 degrees Thursday. Northwesterly flow in the wake of that weak low pressure system will bring Phoenix’s high back down to 66 on Friday and 68 on Saturday. The low to mid-70s will return Sunday and through the first half of next week. We should not see any freezing overnight low temperatures during this time frame.

 

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