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1/16-1/17 Event OBS


BullCityWx

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9 minutes ago, CummingGaSnow said:

I just have a bad feeling for my area. Radar upstream in AL looks to go to my south and everything to my west is diminishing as it moves east. I'm thinking my current sprinkling of snow is all I will get. Maybe I'm wrong though. BTW what does the Hrrr have for low temps in my area?

yeah...you are sort of in between where the band falls apart and reenergizes. Who knows where that back edge really is but i think you will be fine. 

hrrr has a sharp temp contrast you area.  mid 20s in hall county with mid teens in atlanta. might be a bit high/ lanier influenced though. 3km nam shows mid to upper teens it looks like. 

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2 minutes ago, burrel2 said:

down to 42.3/33 on my work weather station next to lake Hartwell. Honestly, the temps have dropped a lot faster than I expected. Hrrr keeps me at 42 from 9pm until 3 am... but my temp is still steadily dropping at the moment.

that sounds way off unless there is some unusual temp anomaly in Oconee/Pickens/Anderson areas

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59 minutes ago, CummingGaSnow said:

I just have a bad feeling for my area. Radar upstream in AL looks to go to my south and everything to my west is diminishing as it moves east. I'm thinking my current sprinkling of snow is all I will get. Maybe I'm wrong though. BTW what does the Hrrr have for low temps in my area?

The SW flow has definitemy helped this event.  The radar echoes are moving WSW-ENE and although I think your area when I checked the map may be on the NW fringe of things I wouldn’t be surprised if you had over one inch 

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i know this isn't our area but since i mentioned western tn temps...how about this. 

Area Forecast Discussion
National Weather Service Memphis TN
638 PM CST Tue Jan 16 2018

.UPDATE...

Update to add light snow showers along and downwind of Kentucky
Lake and Tennessee River.

&&

.DISCUSSION...

A another very cold night is in store for the Mid South as an
upper level shortwave rotates across the region and surface high
pressure builds in from the west. It appears that conditions will
again be favorable for lake/river effect snow along and downwind
of Kentucky Lake/Tennessee River. It appears that as winds shift
north-northeast later this evening will set up a favorable fetch
along the lake/river. Latest high resolution HRRR soundings
suggest a moist layer will develop between 1.5-2.0kft beneath an
inversion. This moisture layer is well within the prime dendritic
snow growth zone. In addition, the temperature difference between
the water temperature and air temperature should create near dry
adiabatic lapse rates through this moisture profile. Light
accumulations will be possible along and downwind of the best
fetch along the lake/river system. This may also occur along
smaller lakes across eastern sections of the forecast area.

Further west, there is a smaller potential for this set up along
the Mississippi River. Although winds and lift are not as
impressive, therefore will leave it out of the forecast for now.
Increased low level clouds will be possible and a few snow
flurries cannot be completely ruled out.
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