Temperatures dipped into the teens overnight as central Oklahomans switch out of Christmas mode and begin preparing for New Year's events.

Temperatures dipped into the teens overnight as central Oklahomans switch out of Christmas mode and begin preparing for New Year's events.

The region appears to have finally settled into more traditional wintery conditions, with gauges reading lows in the teens and twenties and highs in the thirties and forties this week.

According to the National Weather Service (NWS), at weather.gov, many Oklahoma counties — including Pottawatomie — a hazardous weather outlook has been issued for portions of northern, western, central and southern Oklahoma, as well as western north Texas.

A low of 19 was expected for Tuesday night/Wednesday morning, with drier air spreading well south of the Red River — quashing a previous advisory of freezing drizzle.

From today through Monday, cold temperatures and very low wind chills are possible this weekend into early next week. There is also a low chance of winter precipitation on Saturday, the alert read.

Counties affected by the advisory include: Harper, Woods, Alfalfa, Grant, Kay, Ellis, Woodward, Major, Garfield, Noble, Roger Mills, Dewey, Custer, Blaine, Kingfisher, Logan, Payne, Beckham, Washita, Caddo, Canadian, Oklahoma, Lincoln, Grady, McClain, Cleveland, Pottawatomie, Seminole, Hughes, Harmon, Greer, Kiowa, Jackson, Tillman, Comanche, Stephens, Garvin, Murray, Pontotoc, Coal, Cotton, Jefferson, Carter, Johnston, Atoka, Love, Marshall, Bryan, Hardeman, Foard, Wilbarger, Wichita, Knox, Baylor, Archer and Clay.

National weather

The NWS reports bitterly cold temperatures and wind chills are affecting the northern Plains, upper Midwest and Northeast through today. Meanwhile, heavy lake effect snowfall will continue, especially near Lakes Erie and Ontario. Unsettled conditions will also persist in the Pacific Northwest with rain or a wintry mix at lower elevations and locally heavy mountain snowfall.

As a strong Pacific front approaches the Pacific Northwest today, moisture will increase across the area. However, expect a dramatic increase in moisture by Thursday as the front begins moving into the region. This will allow snow to spread across the higher elevations of the Cascades and northern Plains — with pockets of freezing rain possible in the lower elevations in western Washington and Oregon. Lighter amounts

of snowfall accumulations are expected today with steady increase Thursday. The heaviest snow will occur beyond the short-term period.

As westerly winds move across the Great Lakes region, cold air will travel over the lakes and give way to heavy lake effect snow downwind of the lakes. As an Arctic high pressure shifts toward the Great Lakes Thursday, conditions become less favorable for heavy lake effect

snow — however, some snow could continue to linger.

Showers will continue across the western Gulf Coast as southerly flow from a warm front transports moisture from the Gulf of Mexico into the region.

As the frontal wave progresses eastward today, most of the precipitation will also shift toward the central Gulf Coast. Precipitation will continue across the Southeast and the southern portions of South Carolina. However, with a shallow cold air mass in place — mixed precipitation and/or freezing rain could occur in parts of central Georgia to southeastern South Carolina.