You should be good by 5:30. Could easily be delays but my guess is runways will easily be plowed and open by late afternoom. Deicing and arrival delays could mess with the schedule but outright cancellations are unlikely...unless a deathband sets up...
One thing i want to at least point out is the big totals on the mesos or icon require upper level energy to perform as it moves through. I've seen many short term disappointments with that not materializing in time to match up with the progs. Not saying i think that's going to happen but it's something nobody should overlook.
Just hug the icon and nams until something better comes along. We're in chips fall mode anyway. Jackpot tbd means not known until the event is over. These progressions are twisty turney. No model will nail exact placement of best banding/dynamics.
Virga streaming in. If you use the cod nexrad site, once the hole over klwx fills in it means onset it imminent for the burbs. Western folks will already be reporting by then. There's going to be hours and hours of virga through late afternoon
I'm always very skeptical of nam qpf output. Temps are usually pretty good but i've seen more than my share of qpf busts. That said, i'm hugging the 12k until it implodes
Soundings at 18z look pretty good. Before onset the column is saturated down to 925mb. Surface winds are out of the south turning se then e. Def going to be hallucinations but one of the nice things about waa precip like this is moisture in the mids is steady streaming in well before onset. Clippers are the worst with "wasting snow"
Alright folks. Locked and loaded with few if any worries. Hope the southern folks get more snow than ice. Ground is frozen and ready to get dumped on. Streets in the western zones will cave with the first flakes.
*measure honestly. No slant sticks or "eyeballing a foot".