PHOENIX (KSAZ) - The valley is expected to receive several storms this week bringing cooler high temperatures and rain throughout the week.
Forecasters with the National Weather Service say the first storm is passing through California and should reach Arizona Monday evening.
Officials estimate the valley could receive up to 1.5 to 1.75 inches of rain this week, with higher totals possible north and east of the valley.
Light showers are expected to continue on Tuesday, but a wet system will bring almost a 100 percent chance of rain in the valley by midnight.
Cloudy skies & some light showers today, with another wet system coming tonight. Rain chances near 100% in Phoenix by midnight! #azwx— NWS Phoenix (@NWSPhoenix) January 5, 2016
Authorities want to remind motorists that these storms can cause flash flooding in low lying areas and washes, motorists should use caution. ADOT officials are constantly monitoring the roadways in anticipation of any problems.
The rainfall has caused minimal damage in the valley, but it knocked out power near Scottsdale and Shea Boulevard for several hours on Wednesday morning.
Power is back on & roads are open on Scottsdale and Shea! Only light out is Gold Dust Ave. officer directing traffic pic.twitter.com/2jFetJa1bo— Courtney Griffin (@CourtneyGFox10) January 6, 2016
Winter weather advisory issued for Arizona high country
FLAGSTAFF, Ariz. (AP) -- The latest winter storm moving across Arizona this week is expected to drop snow in the state's northern and eastern high country late Tuesday and early Wednesday.
A winter weather advisory issued by the National Weather Service will be in effect from 2 p.m. Tuesday to noon Wednesday above 6,000 feet elevation.
The advisory area includes Grand Canyon Village, Flagstaff and Show Low.
Snow accumulations are expected to generally range from 3 to 8 inches with locally heavier amounts, including 5 to 9 inches in Flagstaff.
Motorists are advised to expect snow-packed roads, especially during Wednesday morning's commute.
Forecasters expect a brief lull in storm activity late Wednesday before another storm arrives early Thursday.
The Flagstaff school district delayed school openings by two hours Tuesday due to road conditions.