PHOENIX (3TV/CBS 5/AP) - State officials say that two major highways have reopened in northern Arizona’s high country because of heavy snowfall from a powerful winter storm.

[WATCH: Snowbound in Flagstaff]

I-40 alternate route

This ADOT map show the suggested alternate route for drivers on westbound I-14 near Seligman where the Interstate is closed.

The westbound lanes of Interstate 40 have reopened near Seligman, according to the Arizona Department of Transportation. Drivers should still expect extreme delays on I-40 from Flagstaff to US 93 due to icy, winter weather.

If you encounter a snowplow, do not pass the plow and leave plenty of space between your vehicle and the plow. If you are approaching an oncoming snowplow, slow down and give the plow extra room.

The State Route 87 from Payson to Winslow has reopened in both directions after being closed due to snow. The roadway is still potentially slick and caution should be used.

The closure of State Route 89-A north of Sedona has also been lifted as of Saturday afternoon. ADOT officials have also lifted the closure on State Route 260 closed between Star Valley and Heber.

[FORECAST: Winter Storm Warnings for the holiday weekend]

The Coconino National Forest is closing all forest roads in the Mogollon Rim Ranger District on Wednesday evening. That includes all roads near Highway 87, plus roads down Lake Mary Road. Roads on Highway 260 West will be shut down in the district. The roads north of milepost 308 will remain open, which means that the Pinyon Pine Christmas tree area at milepost 310 will also be open. But the winter storm may make the highway too dangerous to drive on. 

[LATEST: Traffic conditions]

The National Weather Service said Flagstaff received up to 8 to 12 feet of snow from the storm Friday.

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