PHOENIX (KPHO/KTVK) –Heavy snowfall has made northern Arizona highways slippery and slow, and forced some schools to go on delayed schedules for Tuesday.

Karin Eberhard, district relations coordinator for the Flagstaff Unified School District, said the district is anticipating a two-hour delay on Tuesday. However, Eberhard said, that could change to a snow cancellation depending on overnight snowfall and road conditions in the morning. Eberhard encouraged residents to consult www.fusd1.org for changes to the school schedule.

Students in Munds Park, Kachina Village and Mountainaire should use alternative bus stops.

In addition, Blue Ridge Unified School District will be closed Tuesday for all students and staff due to hazardous winter conditions and extreme ice on many of the roads.

The Show Low School District will operate on a two-hour delay Tuesday, Sequoia School will operate on a two-hour delay, St. Anthony Catholic School will operate on a two-hour delay and Mountain Christian School will operate on a one-hour delay.

Students in the Flagstaff Unified School District and the Williams Unified School District enjoyed a snow day Monday due to the winter weather conditions.

Schools in the Prescott Unified School District will operate on a two-hour delayed schedule Tuesday. The schools were on a two-hour delay Monday, mainly due to the ability of buses to get through safely, Superintendent Joe Howard said in a message to parents.

Officials at Northern Arizona University said Monday’s finals went on as scheduled.

[Photos: Arizona rain and snow (Dec. 14, 2015)]

Flagstaff received more than 6 inches of snow on Monday.

The National Weather Service in Flagstaff said to expect very cold temperatures across northern Arizona through Thursday morning.

The Arizona Department of Transportation is warning drivers to expect snow on highways and to watch for icy spots on roads. There were reports of patchy ice on state Route 87 near Sunflower, halfway between Payson and Fountain Hills around 7:30 a.m. Tuesday

ADOT received reports of vehicles stuck in snow on southbound I-17 south of Munds Park on Monday. Plows were sent to the area to clear the snow. Moderate to heavy snow impacted I-17 from Munds Park to Camp Verde through Monday evening.

Rain moved into the Valley Monday morning, but dried out in the afternoon. However, freezing temperatures were forecast for the next several nights.

A freeze warning is in effect for lower Arizona deserts on Wednesday morning, according to the National Weather Service in Phoenix. The temperature will dip down to 34 degrees in Phoenix with colder deserts getting into the low to mid-20s.

A view of Flagstaff on Tuesday morning (Source: KPHO/KTVK)A view of Flagstaff on Tuesday morning (Source: KPHO/KTVK)

Snow on the ground in Prescott on Tuesday morning (Source: KPHO/KTVK)Snow on the ground in Prescott on Tuesday morning (Source: KPHO/KTVK)

Cordes Lakes (Source: Dave Carter)Cordes Lakes (Source: Dave Carter)

Trucks stuck at I-40 exit 163 heading to Love's Travel Stop. (Source: Leslie Stevens)Trucks stuck at I-40 exit 163 heading to Love’s Travel Stop. (Source: Leslie Stevens)

Snow at Northern Arizona University (Source: Facebook/Austin Turner)Snow at Northern Arizona University (Source: Facebook/Austin Turner)

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