RogueWaves

These secondary spin-ups are notoriously ill handled. Not surprising in the least really

What? No vid for here comes the (white) rain again??

CPC on the threat towards next weekend: Detailed SummaryFor Sunday November 17 - Thursday November 21: WPC Days 3-7 U.S. HazardsFor Friday November 22 - Thursday November 28: Ensemble solutions from the GEFS and ECENS both depict a deep mid-level trough with an associated surface low over the Great Lakes region at the outset of week-2. This system is the product of strong lee cyclogenesis which is expected to bring hazardous weather to the Great Plains during week-1. Model consensus favors the surface low to become occluded and stall early in week-2, lingering over the Great Lakes for several days. Model guidance has consistently indicated this to be a potent storm system with significant potential to generate a variety of hazardous weather conditions spread out over much of the U.S. east of the Rockies.Ensemble and deterministic model solutions continue to favor an occluded low pressure system to settle over Ontario during the week-2 period, resulting in a prolonged period of westerly to northwesterly surface flow over the Great Lakes, which are at or near record high surface temperatures. Cold air aloft results in very steep lapse rates, further contributing to favorable lake-effect snow conditions. Consensus among models is for this favorable setup to be at its strongest for Nov 22-23, therefore a moderate risk for heavy snow is posted for portions of the Great Lakes most prone to lake-effect snow, while a broader slight risk of heavy snow is posted for the Great Lakes, much of the Ohio Valley, and portions of the Central Appalachians and Northeast U.S. for Nov 22-26. Surface temperatures are forecast to be near freezing, this increases uncertainty regarding snow totals with rain likely mixing with snow at times, and may make for sloppy conditions across the lake effect snow belts. With a concurrent enhanced potential for high winds the potential for excessive snow accumulations might be further reduced, but instead is replaced with a potential for blizzard conditions.

I want a blocky pattern cut-off spinner over the Lakes mid-winter Feb '85 style.

Had frozen puddles all day. Another step taken towards winter.

Sad. Hit 19.9 here and NOT coldest of the season.

It can, especially on the heels of four straight AN seasons for ORD. Smart $$ would've been betting against 11-12 going big, let alone snow-maggedon that was the going hype from many sources.

It's that guy that rarely reports. I don't think he's on here tbh. Shocking that because I left, Canton out-snowed mby, lol

Snow on snow (drifts) for me up here. Way to ring in the springtime!

Deedler's article stated that in his opinion, the depth likely peaked at 28" sometime in the early hours on the 5th or 6th, but then the SLP curved sharply north running up over KLAN (which didn't exist yet ofc), turning the snowstorm into a +RN event in Detroit dropping the depth by the time they took their official measurements at 7 am.

Back when pigs flew

I am about 4 miles north.

Not THAT much. I was in Marshall nearly 20 yrs (02-21), then Metro Detroit 2.5 yrs. I could stay here just fine and hopefully will. Middle of the Mitt and basically everything within a few hrs drive (or less).

New Years Eve. Yeah, surprisingly good score for DTW. Big month here as well with 31.7"

I guess now that I left Canton, it decided to snow there again. Ofc

Solid snow this evening making for another dicey commute. X-way was the worst. Estimating 2-3 inches fell right around 31-32F. Nice to see b4 the warm RN up next. This was a fun stretch considering the ENSO backdrop.

That's what I arrived home in. Had to stop by the super market and noticed everybody was letting their cars just run and wipers on delay so they didn't have to have a frozen windshield to deal with when they came out. I joined the party and left mine running too. First time for that. So glad I did.

APX mentioned we are getting EC style system during this Nino with up to 4"/hr rates with help from Huron. I had 2+/hr here and look to be easily at 8" so far. Backside fluff will likely be the lesser 1/3 of the total, same as with the Tue-Wed system.

Huh?? Not over here.

DTX mentioned that temps aloft may end up 1-2 degrees Celsius lower than expected. It may be just enough to help in some marginal scenarios.

Perhaps Detroit proper got screwed a bit which seems common with the stronger storms tracking near there, but other areas west in The Mitt were pummeled.

1917-18 was an historic cold and snowy winter for the OHV/S. Lakes. I think there was a substantial snow pack already when that hit. Much like the 78 bliz, impacts were magnified across SMI and OH. And just like 78, it wasn't forecast to bomb-out to Huron, but to take a more typical path eastward. It also may be one, if not the first storm where rescuing stranded motorists (yes in their state of the art Model T's) was a modern day phenomenon that made newspaper articles.

Jan 12, 1918 bombed-out from the Gulf states to Huron as well.

Apparently, the first in that historic series of storms hit right at the end of December '78 as seen by the nice snow cover left on New Years Day 1979. Can't help but notice the similarities with what is happening in this unfolding pattern. The "Blizzard of '79" hit 1/13-14 and was further east so that SEMI was included in the nice accumulations.

Anyone that can explain this new (to me) phenomenon I bolded, please feel free to enlighten. GRR 4) Ensemble solutions, particularly the ECWMF Ensemble (ECE), indicate potential for explosive cyclogenesis as the surface low tracks toward the Ohio Valley. The ECE mean MSLP has dropped to 980 mb, which would imply that several ensemble member solutions feature minimum pressures significantly less than that. Not surprisingly, we are now seeing Shift of Tails (SoT) values in the ECE approaching 2 or greater over parts of Lower Michigan. This means that there are several ensemble member solutions behaving as extreme outliers relative to ECE model climatology. This also emphasizes strong positional sensitivity to the forecast when dealing with what could be a very deep surface low setting up somewhere.