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Wintry Jan 23-27 Winter Storm Obs

Just poured here for like a minute or two at 30.5°, but it’s just regular rain, despite it supposed to be ZR.
 
27.7° and sleet with some freezing rain just started again. Looks like quick burst, with another one on radar moving from SW to NE through Atlanta and headed this way.

All eyes on the big line of heavy precip to the west, and what our temps are when it gets here early afternoon. If we hold below freezing here, the impacts are going to accelerate.

—30—
 
Regarding the 925 layer. This from the NWS RDU discussion.

If the cold nose maintains ice nucleation, even as cold nose
temperatures warm to minus 6-8C this afternoon, then additional
sleet and less complex crystal habits may further delay a changeover
to freezing rain and ultimately yield additional, light frozen
accumulation at the expense of freezing rain.
 
CaryWx said:
Regarding the 925 layer. This from the NWS RDU discussion.

If the cold nose maintains ice nucleation, even as cold nose
temperatures warm to minus 6-8C this afternoon, then additional
sleet and less complex crystal habits may further delay a changeover
to freezing rain and ultimately yield additional, light frozen
accumulation at the expense of freezing rain.
Click to expand...

Think it’s been so long since we had a true mega CAD that it even surprised the NWS pros. This is as powerful as I can ever remember. Made it to 14 last night.


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btw temp is still dropping here. have just reached a new low of 24.8 (was 25.6 an hour ago) on my elevated station (12 feet) . 2 meter sensor is 25.5. Athens has just reached a new low of 26. Temps are 21 at greenwood so wouldn't surprise me to to drop a little bit more before solar insolation does it's thing.
 
jackendrickwx said:
interested to see if we can mist/drizzle ZR during the lull in widespread precip. I am not fully sold on that final band being very efficient in ZR production
Click to expand...
Gonna be a good case study bc idk if I’ve ever seen anything like that anywhere. Either way it still looks like .1” hour precip rates there at the end
 
Jimmy Hypocracy said:
It’s crazy because this idea was being thrown around a day or two ago. Scorching temps above but so cold most of us sleeted all night
Click to expand...
And that is what has helped us in staying away from those damaging ice totals thank goodness and keep the lights on(Afternoon round notwithstanding)

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iGRXY said:
Something interesting is you can see those strands of precip in west Alabama and Georgia start building in as soon as they get to Atlanta. Likely from increased elevation aiding in lift and this is where the WAA meets the CAD dome helping precip to blossom
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Yea we’re not done. 1/2 inch ice totals still on the table, imo.
 
bud006 said:
27.7° and sleet with some freezing rain just started again. Looks like quick burst, with another one on radar moving from SW to NE through Atlanta and headed this way.

All eyes on the big line of heavy precip to the west, and what our temps are when it gets here early afternoon. If we hold below freezing here, the impacts are going to accelerate.

—30—
Click to expand...
I was wondering if those yellow cores in those showers was sleet. hrrr keeps cold 925mb temps down to the ne burbs into the afternoon so sleet looks like a possibility in those heavier showers until then.

2pm.png
 
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