State Route 89A at Oak Creek on Tuesday, Jan. 3, 2023.(Screenshot via ADOT Webcam) (Screenshot via ADOT Webcam) (Screenshot via ADOT Webcam) (Screenshot via ADOT Webcam)

PHOENIX – A winter weather advisory was in effect in the Flagstaff area until 5 p.m. Tuesday, with 3 to 6 inches of snow expected to fall, the National Weather Service said.

“It looks like it will wind down by this evening for most people,” Benji Johnson, a meteorologist in the Flagstaff bureau, told KTAR News 92.3 FM.

Flagstaff already had 11.2 inches of snow drop down Monday, while nearby Bellemont had almost 10 inches.

Driving conditions along Interstates 17 and 40 in the region have been problematic because of low visibility, snow and ice, Johnson said.

“There were already accidents on I-17 between Munds Park and Rim Rock,” he said. “I would expect those conditions to deteriorate as the day continues.

Melting snow will cause issues, too.

“We have quite a bit of snow on the ground … [then] we’ll get melting and refreezing that will happen day to day, night to night,” Johnson said.

Snow runoff could wind up in streams, elevate water flow and fill dry washes, where drivers have crossed into floodwaters, he said.

“If you can, avoid travel, that’s the best-case scenario,” Johnson said.

Elevated water flow could continue into the foreseeable future as snow melts out of the high country, but the snowpack melt won’t be rapid, he said, despite rising temperatures later this week.

After a predicted high Tuesday of 34 degrees, numbers go up. Wednesday’s high jumps to 39 degrees, followed by 43 degrees Thursday and 40 degrees Friday.

KTAR News 92.3 FM’s Jim Cross contributed to this report.