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Everything posted by HKY_WX
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February 19-20 Major Winter Storm Threat
HKY_WX replied to NorthHillsWx's topic in Southeastern States
Euro here in southern Franklin County is prob 4-6 snow/sleet and then a 1/2" of ice... -
February 19-20 Major Winter Storm Threat
HKY_WX replied to NorthHillsWx's topic in Southeastern States
Now that we have some trials over the past 2 months, the canadian, icon, and nam have been pretty worthless past 48 hours. I would stick to paying attention to the gfs/euro combo. The HRR will also be usueful inside of 48. -
February 19-20 Major Winter Storm Threat
HKY_WX replied to NorthHillsWx's topic in Southeastern States
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February 19-20 Major Winter Storm Threat
HKY_WX replied to NorthHillsWx's topic in Southeastern States
A miller A to Miller A/B hybrid seems most likely. We're basically seeing a stj vort slide over the southern tier which spawns the original SLP. That is then captured by the polar jet wave which turns it up the coast into a Kocin type SECS event for the northeast. The parent HP location plus this eventuality to me favors some mix of snow/sleet/zr. Not a pure zr storm, except for those straddling the edge. -
Looks like the weekly planner on TWC in the late 90s https://x.com/chazzzwx/status/1890545541278294248?s=09
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Euro is just a classic 80s/90s type nc north event. Big mixed bag in NC piedmont with the mid Atantic getting a big snow. A Parent HP over the dakotas has actually produced some of our more classic ice events. The parent HP that far west favors a long duration overruning setup. The trough axis tends to be a bit too far west for pure snow. I am concerned with the euro keying in one such large ice accretion this far out. Haven't seen that in many years for NC.
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It's a bit far out to narrow that down. The parent high is a bit too far west to funnel a Wedge way south. But if the wave itself trends more suppressed then it will be a snowier solution (aka colder aloft). Too many variables at this point.
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The ice threat is legit this go around. HP is str8 outta Compton (Siberia).
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Ugh we got a ton of line trees here
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Not saying it's wrong this time (a clock is right twice/day), but I wouldn't put any credence in that chitty icon model. It's horrible in general.
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The patten is there. The details will irons themselves out in time
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32.9 here west of Franklinton with rain. Ugh
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To piggy back off of this from Jan. This is the first mid-range look I've seen since Jan that is enticing. Doesn't get much better. Weak PV lob over SE Canada. Virtually obliterated PV due to the large -AO and Greenland block. If it pans out around Feb 21st, i'll count that as a correct call from 23 days out ;).
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1 week later you can see the results. This is a normal lag time between higher heights building in over the Poles and a pattern change over the CONUS. So we may have a window from roughly Feb 21 - Mid March where we could squeak out another event. We shall see.
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So next 2 weeks look very warm. AO/NAO are headed up and the PV is going to strengthen. This will allow the central/eastern CONUS to warm significantly vs January. That said, there are signals the 2nd half of February will be a transitionary period to perhaps a colder March in the east. See below for the 12z Euro extended 5h heights and the GEFS AO forecast.
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Euro weeklies and extended ensembles show we'll be fighting a SE ridge in February. The PV looks to strengthen. This will result in a +AO/NAO which will bottle up the cold air in Canada. There are some hints of the PNA going positive in Mid-February which could help out. It will likely be a Month of Ups/Downs. It does show some CONUS wide Cold air in starting up in early March.
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I mentioned this setup on Sunday. It looks like a real shot of a legit CAD setup. But it's not worth getting too invested in till we get closer.
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Cheers fellas. To NW trends! 20250121_201636.mp4
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1/4" 19* light snow here west of Franklinton NC
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Heavy dandruff here in Franklinton
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My first obs from the deep south snowstorm is we got no hot water. Frozen pipes here. The joy of bitter cold.
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Following up with a totals map. I think we'll continue to see a slow trend NW with the precip shield up until gametime on the models for the reasons I suggested above. Timing will be important tomorrow in NC as temperatures will be below freezing and anything that falls will start to impact the evening commute immediately.
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I'll post one later tonight
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