More Cold Canadian Air Coming
But Not as Bitter as What We Had Earlier This Month
You can expect two new surges of cold Canadian air to sweep into Middle Tennessee this week, although neither will be as bitter as what we experienced earlier this month.
The first cold front sweeps in late today and tonight, dropping temperatures into the upper 20s overnight, and producing a
measurable snow along the Cumberland Plateau. Right now it looks like around an inch of snow will likely fall along the higher elevations over the east, with a dusting possible between the Plateau counties and the I-65 corridor. Only flurries are expected elsewhere.
A Winter Weather Advisory for snow is in effect for the Cumberland Plateau from midnight tonight through 6pm Wednesday.
Freezing temperatures are expected throughout the day on Wednesday along the Cumberland Plateau, with the high
temperature at Crossville forecast to only reach 31 degrees. A high of 34 degrees is forecast for Nashville.
Temperatures will warm briefly on Thursday, ahead of the next cold surge, with highs Thursday forecast to range from the upper 30s along the Cumberland Plateau to the middle and upper 40s elsewhere.
The next cold front sweeps across the Mid State Thursday night, dropping temperatures back into the 20s. Another shot of snow is possible, especially across northern and eastern parts of the area Thursday night and Friday, as well as some light accumulations (especially along the climatologically-preferred Cumberland Plateau).
Wind chills late Thursday night and Friday morning are expected to drop to between 10 and 15 degrees.
Things don't warm up very much on Friday, as the cold air continues to overspread the area. Indeed, it looks like a pretty raw day, even into the afternoon, as temperatures get no higher than the lower 30s and wind chills hover in the lower and middle 20s. Lows in the teens are forecast for Friday night, with highs on Saturday in the middle to upper 30s.
Temperatures finally climb back to more seasonable levels late next weekend and early next week, with highs pushing back into the 40s. However, our general weather pattern doesn't change much, and there are indications of another cold air dump possibly surging southward out of Canada, into Middle Tennessee, sometime between the 20th and the 22nd.
Below, is the Climate Prediction Center's latest 8 to 14 day temperature outlook, for the period January 21 - 27, which shows a wide swath of below normal temperatures over the eastern United States (including Middle Tennessee). So, stay tuned...