Winter Pattern Setting Up To Begin December Around WNC
A below normal cold spell appears to be setting up for the Southeast to begin December, and that will at least bring very cold temperatures and high winds. Some wintry weather could be the subject of conversation as well, but this is still the long range so many we focus on large temperature swings. I am focused currently on all global models showing some form of cut off or strong front making it way out of Canada, and bringing bitter cold to the area. How cold exactly remains to be seen, but all global models show an active stream moving in from the North. With high pressure building in the Four Corners Region, that will force the Southern Jet more on a Southern pattern. As that high beats moisture down, it could collide with one of these strong cold fronts that will be moving through. Below you can see what comes to fruition when those type of atmospheric conditions set up.
What The Models Show
Below you can see what the most recent models showed during the early December time frame. Yes this is still 7 days out, but that is not too early to discuss the impending cold that could be moving in.
GFS:
European:
Mild/Wet For Thanksgiving
Below you can see the temperature spread from the overnight European model. This really illustrates how mild it will be on Thanksgiving and as you can see there is a chance for rainfall early in the morning on Thursday.
The GFS is also showing this rainfall, so it would be wise to prepare for smoking that Turkey in the rain if you are starting it early . Looking below I have the most recent GFS in motion. There is still some uncertainty as to how much rainfall to expect, but most models do show at least a chance. I will monitor this close and share more information when necessary. Check back for another update soon on the upcoming cold front. I will update regularly as it approaches.