Upper-air disturbance brings slight chance of white Christmas

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by STEVE MCCAULEY

WFAA

Posted on December 18, 2012 at 1:04 PM

Updated Tuesday, Dec 18 at 1:09 PM

DALLAS - Could it be a white Christmas?

While the forecast originally indicated an unusually warm Christmas day in North Texas, a small upper-air disturbance in Alaska brought a small chance of change.

The disturbance rapidly intensified between Monday and Tuesday and will soon make a hard right-hand turn toward the West Coast. The data Tuesday afternoon suggested it will evolve into a major winter storm by next week. However, there are conflicts as to when and where the storm will hit the Oklahoma, Texas areas.

One thing has remained the same with the expected outlook, the storm will likely pass just north of the Dallas-Fort Worth area, perhaps after sundown on Christmas day. Oklahoma will likely take the brunt of the storm as the area to the north of the track gets the heaviest precipitation.

However, some data tracks the storm south of the Dallas-Fort Worth area the day after Christmas, but this appears less likely.

Stay tuned because If the projected path of the storm is off by just 10 miles Tuesday, it could be over 100 miles off by next Tuesday, which could have an enormous impact on where the rain-snow line falls.

 

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