VALLEYWIDE -- A flood watch for southwestern Arizona, including the Phoenix metro area, kicked in at 5 a.m., and will remain in effect until tomorrow morning.
Scattered showers started Thursday night and picked up, becoming a steady rain, overnight. And Mother Nature has more in store.
That steady fall has not only made roadways slick, it has started filling washes throughout the Valley.
By 9:15 a.m., Sky Harbor had already received 1.5 inches of rain.
Some flooding has been reported in Mesa, where more than an inch of rain has come down.
In the West Valley, Loop 303 was closed between Peoria Avenue and Camelback Road after storm water runoff flooded a work zone. The Arizona Department of Transportation said it was reopened at about 2:30 p.m.
Forecasters say Maricopa, Pinal and Gila counties should be prepared as flooding of city streets is possible.
We could see up to 2 inches of rain across the Valley by early morning Saturday. Some areas of the Valley, especially northern and eastern portions, could see even more rain than that.
This storm is shaping up to bring us the biggest rain of the year.
So far this year, the biggest rainfall total at Phoenix Sky Harbor International Airport was on Jan. 26 and 27 when we got 1.34 inches of rain. The next closest is July 19-21 when we got .98 of an inch.
Rain stays in the forecast through Sunday. Temperatures are expected to be even cooler, making for a damp and chilly pre-Thanksgiving weekend.
In the high country, the snow is coming down. Forecasters have issued a winter weather advisory for parts of northern Arizona. Snow is expected across the Kaibab Plateau.