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Wintry Jan 15-16 Winter Storm Discussion & Obs

Special weather statement put out by FFC.

Dade-Walker-Catoosa-Whitfield-Murray-Chattooga-Gordon-Floyd-
Bartow-Cherokee-Forsyth-Polk-Paulding-Cobb-North Fulton-Gwinnett-
Barrow-Clarke-Oconee-Oglethorpe-Wilkes-Haralson-Carroll-Douglas-
South Fulton-DeKalb-Rockdale-Walton-Newton-Morgan-Greene-
Taliaferro-Heard-Coweta-Fayette-Clayton-Henry-
340 AM EST Fri Jan 14 2022


...SNOW AND ICE ACCUMULATIONS LIKELY OVER NORTH GEORGIA SATURDAY
NIGHT AND SUNDAY...

...BLACK ICE LIKELY SUNDAY NIGHT AND MONDAY MORNING...

A strong upper level storm system will combine with very cold
temperatures aloft and near the ground to produce wintry
precipitation this weekend.

The rain will begin mixing with and changing to snow after
midnight on Saturday night and switch to mainly snow over far
northeast Georgia with a mix of rain, freezing rain, sleet and
snow over the rest of north Georgia during the day Sunday. Light
snow or snow flurries will be ending from west to east Sunday
evening.

The heaviest snow will fall on Sunday over far northeast Georgia,
where a Winter Storm Watch is in effect and up to 6 inches of
snow is expected with higher amounts possible at elevations above
2000 feet. Elsewhere across north Georgia north of I-20, up to 2
inches of sleet and snow and up to two-tenths (0.20) of an inch of
ice will be possible. South of I-20, there may be some snow or
sleet mixed with the rain but little to no accumulation is
expected.


After the precipitation clears out Sunday night, temperatures
will fall into the 20s and any remaining liquid runoff from
earlier precipitation will likely freeze on roadways across north
Georgia. These icy spots will persist well into Monday morning.
 
Woke up to see what we have and doesn’t look like anything has really changed. Starting with the 12z run we’re starting to get much more in the 12K NAMs range more so I’ll be paying more attention to the hi res stuff a lot more today.
 
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I tell you what, we make fun of the ICON but that is probably one of the best visualizations of snow totals that I’ve seen and matches up well with our local Mets and GSPs thinking. You are probably sitting somewhere around 2-5” around DT Spartanburg but you get anywhere close to 85 and it shoots up to 4-6” and everything along and north is 6”+. Matches up really well in my opinion.
 
View attachment 105350
View attachment 105351
I tell you what, we make fun of the ICON but that is probably one of the best visualizations of snow totals that I’ve seen and matches up well with our local Mets and GSPs thinking. You are probably sitting somewhere around 2-5” around DT Spartanburg but you get anywhere close to 85 and it shoots up to 4-6” and everything along and north is 6”+. Matches up really well in my opinion.

The ICON really beefed up the front end dump versus last run....

icon_asnow_seus_fh57_trend.gif
 
Winter Storm Watch for central NC:

Winter Storm Watch​

URGENT - WINTER WEATHER MESSAGE
National Weather Service Raleigh NC
307 AM EST Fri Jan 14 2022

NCZ009-010-025-026-040-041-073>077-083>086-088-141700-
/O.NEW.KRAH.WS.A.0001.220116T0500Z-220117T0500Z/
Vance-Warren-Durham-Franklin-Chatham-Wake-Stanly-Montgomery-Moore-
Lee-Harnett-Anson-Richmond-Scotland-Hoke-Cumberland-
Including the cities of Henderson, Kittrell, Warrenton, Norlina,
Durham, Rougemont, Louisburg, Franklinton, Siler City, Pittsboro,
Raleigh, Cary, Apex, Wake Forest, Knightdale, Albemarle, Troy,
Southern Pines, Pinehurst, Aberdeen, Carthage, Sanford,
Lillington, Angier, Buies Creek, Erwin, Dunn, Wadesboro, Polkton,
Rockingham, Ellerbe, Laurinburg, Camp Mackall, Wagram, Raeford,
Fayetteville, Spring Lake, and Hope Mills
307 AM EST Fri Jan 14 2022

...WINTER STORM WATCH IN EFFECT FROM LATE SATURDAY NIGHT THROUGH
SUNDAY EVENING...

* WHAT...Heavy mixed precipitation possible. Total snow
accumulations of up to two inches and ice accumulations of up
to three tenths of an inch possible.

* WHERE...Portions of central North Carolina.

* WHEN...From late Saturday night through Sunday evening.

* IMPACTS...Power outages and tree damage are likely due to the
ice. Travel could be nearly impossible.

* ADDITIONAL DETAILS...A mix of snow, sleet, and freezing rain is
forecast, although locations southeast of US 1 will likely
change over to rain Sunday afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$
aaaa1.jpg
 
Here's the watch discussion for areas west of the zone discussed above:

Winter Storm Watch​

URGENT - WINTER WEATHER MESSAGE
National Weather Service Raleigh NC
307 AM EST Fri Jan 14 2022

NCZ007-008-021>024-038-039-141700-
/O.NEW.KRAH.WS.A.0001.220116T0500Z-220117T0500Z/
Person-Granville-Forsyth-Guilford-Alamance-Orange-Davidson-
Randolph-
Including the cities of Roxboro, Oxford, Creedmoor,
Winston-Salem, Greensboro, High Point, Burlington, Graham,
Mebane, Hillsborough, Chapel Hill, Carrboro, Lexington,
Thomasville, Asheboro, and Archdale
307 AM EST Fri Jan 14 2022

...WINTER STORM WATCH IN EFFECT FROM LATE SATURDAY NIGHT THROUGH
SUNDAY EVENING...

* WHAT...Heavy mixed precipitation possible. Total snow
accumulations of 2 to 4 inches and ice accumulations of one
tenth to three tenths of an inch possible.

* WHERE...Portions of central North Carolina.

* WHEN...From late Saturday night through Sunday evening.

* IMPACTS...Power outages and tree damage are likely due to the
ice. Travel could be nearly impossible.

* ADDITIONAL DETAILS...Precipitation will initially begin as snow
before changing to a mix of snow, sleet, and freezing rain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$
 
Nam 3km has around temps at 34/35 in central Alabama on the backside of the Low pressure. Anybody that knows. Does nam have a temperature bias of any means. With the dense cold air we're dealing with. Any shift in a few degrees colder will result in some people receiving a good chunk of snow, to almost zilch.
 
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