In all seriousness, that was a pretty abrupt amplification of the southern stream on the 12z models. You can see snow developing much further into the midwest.
Lots of emotions and disappointment over the b team last nignt. Looks like everything is on track. Im a big fan of the rgem/ecmwf combo. Its pretty deadly. Ecmwf was definitely a tick nw regardless of the final qpf output.
Oh and the ssw was effective. Enjoy your cold lol.
Major change from 00z was a faster and more amplified southern shortwave with less confluence ahead over NE. Also the northern stream shortwave kicker did come in a bit faster like the other 12z models..so the storm ended a bit sooner than earlier runs.
Id say you can add an additional 3 to 6 inches of fluff sunday from niagara to oswego counties that wont be caught well by the ecmwf qpf progs. This isnt a super ideal lake enhancement scenario however since the storm doesnt track in quebec and throw lots of low level rh over the lakes as it departs.
Gem kinda does the same as the gfs. Faster slightly beefier southern shortwave gets farther north initially but then get shunted east faster as the northern stream shortwave kicks it east.
You can see weak lift through the column area here with a relative max near -8c/800mb. Its where methods like max t in profile and kuchera fall short. They only take into account temperatures, not rh or omega.