Update, Sunday, 1:30 p.m.: Snow accumulations could reach 10 inches before it stops falling at 4 a.m. Monday, according to the National Weather Service. Between 6-10 inches is now predicted. The 36 hour total snowfall accumulations from Saturday evening through early Monday morning will range from 8-14 inches.
A wind chill warning remains in effect from 7 a.m. Monday to 1 a.m Wednesday. Wind chills will drop to between 20 and 30 below zero during the day Monday as temperatures fall below zero, according to NWS.
Saturday, 7:30 p.m.: The National Weather Service (NWS) has issued a winter storm warning for Oakland County through 10 p.m. Sunday, Jan. 5. The warning area also includes the counties of St. Clair, Livingston, Macomb and Washtenaw.
Snowfall amounts will range from 1-3 inches by daybreak Sunday, according to NWS.
"The heaviest snow is expected to occur from Sunday afternoon into early evening when snowfall rates of 1-inch per hour will be possible. Storm total accumulations of 6 - 12 inches are forecast by the time snow tapers off on Sunday night," states the report.
Temperatures drop dramatically
"The coldest air to affect southeast Michigan in several years will then surge into the area on Monday in the wake of this storm," according to NWS. "This bitterly cold arctic air mass will bring dangerously cold wind chills through the first part of the upcoming week."
The low Monday night is expected to be 11 degrees below zero.
Royal Oak Schools Superintendent Shawn Lewis-Lakin released a notice telling parents he promises to use the best information available to make the best decision on whether or not to cancel school on Monday.
"Snow, ice, wind, and temperature are all variables that are a part of the decision making process. The amount of snow matters, but wind speed and temperature (e.g. when temperatures impact the effectiveness of salt to melt snow) also play into the decision," Lewis-Lakin said.
As a general rule, school closings are considered when temperatures are -20 to -25 degrees, but the decision can be impacted by when such lows are anticipated and for how long they are expected to last, he said.
Should emergency closings arise, Royal Oak Patch will share that information as it becomes available.