Chicago Storm

It appears there were 5 brief tornadoes in total. Very brief event too, impacting only a very small portion of the state.

Had a brief bout of 0.25" hail here as well with the TS.

First TS of the year here at ORD.

one of the biggest december torches we’ve seen in years. .

Christmas Day 1982 had a high of 64. .

A bit late, but some Christmas Eve/Day temperature stats for Chicago, after the cold over the holiday. This Christmas Eve featured a tie for 6th coldest high temp and a tie for 11th coldest low temp on record. Christmas Day featured the 7th coldest high temp on record, and an honorable mention of a tie for 17th coldest low temperature on record (2). Christmas Eve Record Coldest High Temps: 1983: -11 1872: 5 1878: 8 2000: 11 2004: 12 2022: 14 1989: 14 1892: 15 1990: 16 1920: 16 Christmas Eve Record Coldest Low Temps: 1983: -25 1872: -23 1878: -9 1989: -6 1951: -5 1924: -4 1992: -3 2013: -2 2004: -2 2000: -2 2022: -1 1897: -1 Christmas Day Record Cold High Temps: 1983: -5 1985: 2 1924: 6 1996: 9 1902: 10 1892: 10 2022: 14 1977: 15 1899: 15 1879: 15 1878: 15

Peak dew points in the low to mid 50's today. Solid stuff.

ORD topped out at 59 today, which was just a few degrees shy of the record high for the date of 63, set in 1984.

The June 13th Chicago metro supercell is probably the only noteworthy local event of the year in my book.

Kicking this thread off early for 2023, with one or more opportunities coming up for the southern portion of the sub-forum...though greatest chances will inevitably be further south.

Ended up with a few tenths of snowfall accumulation at home, and a T at ORD. dampening duster confirmed.

A little more this now... While we have been cold in the wake of the pre-Christmas storm system, the next pattern change has already been underway on the large scale. After being in the COD for quite a while, the MJO is on the move through low amplitude phases of 4-5-6-7, through the first 1/3rd of January. At this time of year a majority of those phases are warmer phases, but given the low amplitude, the effect will not be as great as otherwise possible with a high amplitude push. Also what is changing is that we are seeing the larger scale blocking and teleconnection pattern breaking down. The significant -AO/-NAO has finally been crumbling, and the -EPO push is fading as well. We are now transitioning into more of a +AO/+NAO/+EPO pattern, with a PNA that will be in flux. Another thing to mention is the SPV is on the move, after being anchored in the N Canada/Greenland area for a while, it will slide back to the other side of the pole in the vicinity of the Russia/Arctic Coast for a while. All in all, temperatures will be a mix of cool/mild to end of December and continue through the first 1/3rd of January, with things being more mild than not. The weather pattern should be fairly active across the CONUS, but with mostly rainer threats for most (Not all) of the sub-forum. Best chances for snow will be across the NW/N portion of the sub-forum, or if a thread the needle scenario can occur elsewhere. There are some hints that things may attempt to change a bit for mid-month, but those signals are still a while off.

dampening duster. .

A few clips from ORD today. There were a few instances where it was worse than what is shown. There have also been a countless amount of 'snow-nadoes' out on the field today. A few to several more inches of snow, and we definitely would have had a high chance of blizzard conditions.

This is more of a poor attempt at a Pacific hybrid, than a clipper. The wave/storm system originates from a large trough coming into the west coast of Canada and the Pac NW.

you're telling that to someone who has a past history doing some light tolling on this forum himself. am i really going to take the time to go back and bump about 50 posts? probably not. we have palm root ball killing cold to focus on right now.

Barely was able to tack on another 0.2”, so the final snowfall total at ORD for this event now stands at 1.3”. .

The temp has slipped below zero, to -1 at ORD. We'll see whether or not it stays below zero for Friday as a whole.

Haven't had a chance to put out much in the way of thoughts regarding the final 1/3rd of December, but a quick glance at ENS guidance will tell you all you need to know... We transition from current cold period, to a mix of cool/mild for next week, and likely into early January as well. If you're looking for a quality snow pattern, good luck...You'll need to bank on thread the needle opportunities, even into early January.

Snowfall total of 1.1" at ORD so far as of 0z, and likely the final total with snow about to wrap up.

South end of the airport, off Irving.

1/2SM SN FZFG DRSN here at ORD currently.

if that's going to come to fruition, we're going to need a lot more snow. so i'd say it's pretty unlikely right now, unless something changes pretty quickly.

and it's going to stay the record, too.