Much colder air entrenched deep into the South, accumulating snowfall is occurring across northern Georgia this morning to as far south as Atlanta:
Northern Georgia near Ringgold on I-75 (Courtesy Georgia Department of Transportation):
Note the whitened grass in at this location in Atlanta (cam courtesy of CBS 46 Atlanta).
I-85 in Atlanta.....notice dusting of snow on the pines & the snow falling (cam courtesy of CBS 46 Atlanta).
Dusting of snow developing on trees near downtown (cam courtesy of CBS 46 Atlanta):
0.3-1.1" of snow has been reported so far over the viewing area.
Wave of steadier snow has exited, but some snow showers & squalls are developing in Illinois with shortwave.
Note how the relative humidity in the Snow Growth Zone is +80% & that the SGZ layer is deep over central Illinois.
This shows conditions favorable for crystal & good flake production for any snow showers.
Some fog & freezing drizzle are also possible.
Additional accumulations of less than 1" are possible through this evening to tonight.
Due to the scattered, convective nature of the snow showers (like summer-time showers, t'storms), local accumulations will vary. It will be a situation of one place gets an additional trace & 5 miles away there is 0.9" or 1", while another 5 miles away is 0.2".
Snow, sleet & some freezing rain should overspread the area in the late morning-midday time frame Sunday.
It should go to all rain by late afternoon to evening as temperatures rise to 35-39.
A quick 1-2" of snow/ice is possible north along & north of US 24.
South of there, it will be a sharp cut-off to only dusting/trace amounts & brief thin coatings of ice.
It is still a rather tricky forecast on exact duration of the snow & ice before going to rain. This could affect totals of any snow or ice, so stay tuned.
What we thought could happen is showing up on some model solutions now: Clipper & southern storm system merger with potential snow & ice getting into our area Wednesday-Thursday.
It looks more like Wednesday night-Thursday when this would occur & even lasting to early Friday morning with snow to ice to snow with strong gusty winds up to 40 mph from the east, then northeast.
Potential is there for impactful wintry weather, though there are many uncertainties. We will monitor closely.
Bitterly cold air will follow with potentially the coldest air of the fall & winter so far.
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