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Wintry January 21-23 2025

Building off some of the things I mentioned earlier

mcd0053.png

Mesoscale Discussion 0053
NWS Storm Prediction Center Norman OK
0801 PM CST Tue Jan 21 2025

Areas affected...central and eastern portions of the Carolinas

Concerning...Heavy snow

Valid 220201Z - 220700Z

SUMMARY...Moderate to heavy snow should gradually become widespread
through early tonight across portions of the central and eastern
Carolinas.

DISCUSSION...700 mb warm-air and moisture advection are increasing
over central and eastern parts of the Carolinas with the approach of
a pronounced 500 mb trough that is traversing the central
Appalachians. Beneath the 700 mb moistening, strong surface-850 mb
cold-air advection is contributing to further saturation and
sensible cooling of the column to support a predominance of snow,
which is currently being indicated by surface observations on a
widespread basis. Ahead of the upper trough, 700 mb frontogenesis is
intensifying, which should support increased snowfall rates. As
such, in addition to the transition to snow, 0.5-1.0 inch/hour
snowfall rates may develop over the next couple of hours, as also
suggested by some of the latest high-resolution guidance runs.

..Squitieri.. 01/22/2025

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...AKQ...MHX...RAH...ILM...CHS...CAE...GSP...

LAT...LON 31968072 32388112 33088159 33798169 34438124 35427983
35787825 36017695 36227604 35877554 35337562 34927650
34557721 34057805 33607881 32857959 32288042 31968072
 
Well, this is turning into a frustrating night in Tallahassee. A beautiful burst of snow when precip started around 5 p.m. was a bit of a false signal.

Since then it has been a mix of sleet and freezing rain. Snow has been reported less than 10 miles to my north and west, but has not returned here.

Meanwhile, power outages have begun in Tallahassee -- 2,000 down now .. sure to grow.

The RAP is insisting on a changeover to snow imminently but the HRRR has now ominously flipped to sleet remaining the precip of choice for virtually the entire duration of the storm, which would obviously be hugely disappointing.

Anyway, long way to go, but ready to see some cotton balls.

Current conditions: IP/ZR mix, 30.6 F.
 
View attachment 166634

Mesoscale Discussion 0053
NWS Storm Prediction Center Norman OK
0801 PM CST Tue Jan 21 2025

Areas affected...central and eastern portions of the Carolinas

Concerning...Heavy snow

Valid 220201Z - 220700Z

SUMMARY...Moderate to heavy snow should gradually become widespread
through early tonight across portions of the central and eastern
Carolinas.

DISCUSSION...700 mb warm-air and moisture advection are increasing
over central and eastern parts of the Carolinas with the approach of
a pronounced 500 mb trough that is traversing the central
Appalachians. Beneath the 700 mb moistening, strong surface-850 mb
cold-air advection is contributing to further saturation and
sensible cooling of the column to support a predominance of snow,
which is currently being indicated by surface observations on a
widespread basis. Ahead of the upper trough, 700 mb frontogenesis is
intensifying, which should support increased snowfall rates. As
such, in addition to the transition to snow, 0.5-1.0 inch/hour
snowfall rates may develop over the next couple of hours, as also
suggested by some of the latest high-resolution guidance runs.

..Squitieri.. 01/22/2025

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...AKQ...MHX...RAH...ILM...CHS...CAE...GSP...
I believe this is what Webber was alluding to a couple hours ago.
 
The snow tonight is reflecting like it’s almost little pieces of diamond dust
Noticing that in the lights, too. I think it’s so high ratio / dry.

Just got done walking the dog for an hour and a half. Doggie got a long walk because I wanted to be out there, too lol!
 
rates really picking up now!
View attachment 166645
Is that Charlotte? Based on radar on thought you guys were basicallly done!

If radar can be believed I think it’s going to stop here in the next 30-60 minutes but I’ll hold out hope for a pivot or back building hah. We definitely have at least an inch and maybe edging past 1.5”? Not sure, I’ll measure after it’s over if I can find a good spot, probably.
 
Is that Charlotte? Based on radar on thought you guys were basicallly done!

If radar can be believed I think it’s going to stop here in the next 30-60 minutes but I’ll hold out hope for a pivot or back building hah. We definitely have at least an inch and maybe edging past 1.5”? Not sure, I’ll measure after it’s over if I can find a good spot, probably.
Chased to parents in Hartsville
 
All done here. Under an inch but still nice. Maybe one day we will get another 6 inch storm. It’s been 11 years.
It’s still ripping here. Heaviest of the night. Quickly closing on an inch. If it just finished for you I’ve got about 15 minutes to get there
 
Also, NWS Raleigh is reporting 1.1" at their office with 0.06" of liquid at nearby RDU. That'd be 18:1 ratio, rounded.
I’ve only seen one snow with a higher ratio in NC - 1/23/03. Officially 8” at KCLT with .18 liquid equivalent.
 
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