TULSA - UPDATE: The National Weather Service has extended a Winter Weather Advisory to several more counties, including Tulsa.
The advisory expires at 9:00 p.m. Friday evening.
Counties under a Winter Weather Advisory in our area include: Pawnee, Washington, Osage, Craig, Nowata, Creek, Wagoner, Rogers, Mayes, and Delaware.
"Additional wintry precipitation has developed across western and central Oklahoma this afternoon, and was moving east," the NWS bulletin reads.
Bitter cold is a sure-fire bet for Green Country beginning late Thursday afternoon, the only question is if the precipitation will stop before it turns to sleet, ice or snow.
Tulsa's right on the dividing line for ice or snow on most computer models, according to Steve Piltz with the National Weather Service.
"So far we've been kind of holding with the idea that Tulsa would be on the edge of this with better chances to the west and north of the Tulsa metro area, but still close enough that we need to watch," Piltz said. "There's still some computer models out there that would suggest this is a more significant ice storm for a larger portion of Oklahoma."
The NWS issued a Winter Weather Advisory which begins at midnight Thursday into Friday and ends at midnight Friday into Saturday.
It covers Creek, Pawnee, Osage, Washington, Nowata, and Craig Counties.
An advisory is the first level in a three-tiered system.
Level two would be a watch, level three, a warning.
"If we go to a watch or a warning, that means a more serious impacts, and that means more serious preparation is required," Piltz explained.
It's possible more advisories, watches or warnings could get posted over the weekend.
"There's another shot of moisture that comes into cold air late in the weekend, the first part of Monday," Piltz said.
KRMG has its Storm Center fully staffed to deploy in the event of dangerous weather.
Text the word "weather" (without the quotes) to 95920 to get text alerts any time severe weather threatens.