Snow is mainly on the front end of the fast moving system and temps near or above freezing should help limit travel problems to a minimum outside the mountains once temps start to rise further later today I.E. snow on roads will melt after it stops falling.
It’s snow then snow/rain then changing to just rain in most areas of Metro Atlanta. More rain than snow for most of us but a quick accumulation mainly North of I-20 but more so North of I-285 before it transitions to mostly rain after 12 Noon, except far NE suburbs.
And precip only lasts a few hours in most places regardless of type.
Temperatures in Metro Atlanta do not go below freezing again until tonight sometime between Midnight and 7am so no big ice jam or anything like that.
Be sure to check back in case things change and listen to 95.5 WSB Radio for weather updates and traffic and road updates.
Keep in mind it can snow at surface temperatures as high as 39 if the air dry enough or the snow falls at a fast enough rate, but if the air is at or above 32F it will have trouble sticking on roads most of the time.
The thermodynamic diagram vertical profile of the atmosphere predicted by high resolution model shows as usual we are close to having problems so it could go the other way, but probably not. Note temps near or above freezing actually warm a little a few hundred to thousands of feet before dropping below 32 again by 5,000 feet:
HIGHEST PROBABILITY OF some “real LASTING snow impacts” in these areas give or take 25 miles or so in any direction:
NATIONAL WEATHER SERVICE ATLANTA OFFICE BULLETINS (Winter Storm Warning in pink, Winter Weather Advisory in purple):
SURFACE WEATHER CHART MID-DAY:
MOST of what I wrote in previous blog is still valid, PLEASE READ THAT when your’e done here so I don’t have to repeat myself here. Thank you.
SOME MODEL MAPS:
FROM THE ATLANTA NWS:
THE ATLANTA NATIONAL WEATHER SERVICE OFFICE SNOW FORECAST ESTIMATE:
For more listen to 95.5 WSB and download the WSB Radio APP
REMEMBER... those lines above are best estimate not written in stone, there will be some variation where they can end up further South or North, typically by at least 23 miles.
One of my favorite techniques to find the most intense snowfall rates is mid-level atmospheric frontogenetic forcing (upward vertical motions maximized) this are in the light orange but especially in the purple circled areas from tropicaltidbits 700mb NAM model charts: