12:15 p.m. Crews have pre-treated bridges, overpasses and interchanges on the state's turnpikes in preparation for snow Tuesday.
An Oklahoma Turnpike Authority spokesman said crews will be out beginning Monday evening and continuing through the night.
The Oklahoma Turnpike Authority has more than 35,000 tons of salt on hand along 97 spreaders and 119 plows to clear the highways of snow.
11:15 a.m. With a 90 percent chance of snow on Christmas Day, state Transportation Department officials are getting ready to work on roadways, spokesman Cody Boyd said. The department has 550 trucks statewide, 60 of those in Oklahoma City can spread sand and salt on slick spots. About 1,000 workers are on standby if needed on Christmas Day, Boyd said. They will work as long as needed, he said.
In Oklahoma City, the new Interstate 40 Crosstown will be easier to manage in the event of snow because it is not elevated and has wider shoulders for snowplows to pile any snow if needed, Boyd said.
Oklahoma Gas & Electric Co. officials are ready to active an incident command system, spokeswoman Kathleen O'Shea said. This would deploy crews to any areas of power outages.
“We've been tracking this and are getting updates from the weather service,” O'Shea said. “At this point we're still watching and waiting.”
Forrest Mitchell, a meteorologist in the National Weather Service in Norman, said a short period of freezing rain or sleet is expected before the snowfall in central Oklahoma. Roadways will be slick before snow starts just after midnight, he said.
“We're going to try to arrange it so Santa Claus can make his rounds before the snow starts,” Mitchell said.
9:15 a.m. Oklahoma City street crews will have 33 trucks ready to spread salt mixtures on icy roads, overpasses and bridges on Christmas Day, spokeswoman Kristy Yager said. Crews are loading trucks with salt Monday morning and heading toward bridges and overpasses. It will take about five hours for 12 trucks to cover city bridges and overpasses, she said. The city crews have 621 miles to cover. Snowplows can be attached to some trucks. Drifts are expected Tuesday. Crews will be on standby at midnight, Yager said.
“Our trucks are ready. We will do what we can,” she said.
5:45 a.m. Up to 7 inches of snow are possible on Christmas Day in Oklahoma City, the National Weather Service reports Monday morning.
A winter storm warning has been issued for central Oklahoma Monday. The warning takes effect at midnight Monday and lasts until midnight Tuesday.
There is a chance for rain, snow and sleet early Tuesday with a temperature around 24 degrees.
Oklahoma City street crews will begin treating overpasses and bridges with a salt mixture beginning at 10 a.m. Monday, according to a tweet from city spokeswoman Kristy Yager Monday morning. Trucks are being loaded and will cover spots that could get icy citywide.
Snow is expected to taper off Tuesday night, but areas of blowing snow could reduce visibility with temperatures dropping to a low of 10 degrees.
A winter storm warning issued Monday morning states snow will develop between midnight Monday and 9 a.m. Tuesday with heavy snow during the day. Areas from Lawton to Oklahoma City may have an extended period of sleet before the sleet changes to snow, making roads slick and hazardous. Drifts could make east and west roads packed with snow and impassable.
With gusts of wind up to 45 mph whiteout conditions will make travel difficult, the weather service reports.
The Oklahoma City forecast is as follows:
Monday: Partly sunny with a high near 39. North, northeast wind 9 to 11 mph.
Monday night: A slight chance of rain before midnight then a chance of sleet. Mostly cloudy with a low around 26. North, northeast wind 10 to 16 mph with gusts as high as 23 mph. Chance of precipitation is 50 percent. New sleet accumulation of less than a half inch possible.
Christmas Day: Sleet before 9 a.m. then snow. Temperature falling to around 21 by 5 p.m. North wind 16 to 24 mph with gusts as high as 33 mph. Chance of precipitation is 100 percent. New snow and sleet accumulation of 5 to 9 inches possible.
Tuesday night: A 20 percent chance of snow before midnight. Mostly cloudy with a low around 12. Wind chill values as low as -6. North, northwest wind 16 to 22 mph with gusts as high as 31 mph.
Wednesday: Mostly sunny with a high near 22. North, northwest wind 10 to 16 mph becoming east in the afternoon. Winds could gust as high as 23 mph.
Wednesday night Mostly cloudy with a low around 15.
Thursday: Mostly cloudy with a high near 37.
Thursday night: Mostly cloudy with a low around 22.
Friday: A slight chance of rain and snow. Cloudy with a high near 39. Chance of precipitation is 20 percent.
Friday night: Mostly cloudy with a low around 22.
Saturday: Sunny with a high near 40.
Saturday night: Partly cloudy with a low around 26.
Sunday: Partly sunny with a high near 43.