Stormchaserchuck1

So the +PNA/+NAO is going to lead to a -PNA that is going to lead to a -NAO, that is going to lead back to a +PNA?

Here's my deck, tonight, after the combined 2 storms. https://ibb.co/zsFGc67

Stratosphere warmings have happened lately with a SE ridge in the +time to downwell, since 15-16.. Jan 22-28 NAO analogs show the +NAO coming is partially because of timing with the Strat warming (waxes and wanes). Beyond then, Feb has been severely impacted by the a La Nina global base state.. it's the decadal cycle.

I give it a "B" It could have been powdry and windy/blowing snow.. 7" on the ground in an arctic airmass is awesome though.

`15-16 storm had such a high precip content though, and it was gone in a week with mild temps. I will much rather take these 20s/10s arctic days.

I have 7" on the ground. It doesn't melt here like other places, because I am in the deep woods. Really beautiful night out, almost full moon in the sky. 3.6" with this one.

And go outside and be in it! Because it's going to melt next week.

1"/hr?

Yeah it was fun.. there are 74"+ reports coming out near Buffalo. All you need is a strong -NAO or -EPO arctic airmass. If we go into a La Nina next Winter in the heart of this -PDO or whatever it is, it might be a good Winter to go north at some point. Going out on the frozen ice mounds on the lake was fun too, in the heavy wind.

Might have to go to Buffalo and chase sometime

12z GEFS LR is pretty ugly.. here we go with that +PNA that everyone had in February.. I thought it might have troubles this year. Subsurface ENSO has also dipped below 0 in the zone I have found has the highest PNA correlation.. so we'll see.. Euro model, both seasonal and weeklies have been head of the pact showing a strong +PNA February. In the final analysis, they might just rely on El Nino a little too much.

I measured 3.5".

According to the CPC, it's been a Strong +NAO Winter. I don't really get that because look at Greenland, and even a little cold pocket over the Azores https://ibb.co/WW5kVPZ Yet December came in at +1.94, and January according to their predictions forward should come in around ~+1.00. Pretty huge discrepancy there https://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/norm.nao.monthly.b5001.current.ascii.table

Have you found that Mountain Torque actually does that though? I once calculated all the +EAMT events and found no strong correlation to the current and future pattern. Pressure over the Himalaya's was easy to read/record too, on the satellite data going back to 1948. They said that it correlates to 10mb warming, but I even got a weak signal there too.

Unbelievable that that's even on the table with +NAO as strong as it is. I haven't been saying to PSU that the NAO should be positive for us to see snow, I've said that the Pacific correlating, and in many cases more than evening it out (on both sides of the index), is interesting, and could result in better winter patterns going forward in this state since the NAO has almost as strong of a precip correlation as a temperature correlation here on the EC. (I'm not predicting snow or ice with the 25th storm).

We should get 3-4".. Hrr looks pretty impressive, still snowing at 4pm. Interesting to see if they do better than the global models here in the short range.

Another 3" Hrr run for northern MD. It went a little north around DC vs 02z.

Global models still behind short range models for snow totals.. GFS has 1-2", and the NAM was near the same, but Hrr and RAP have been impressive many runs in a row.. 3-4". The Global models hold back is why I think NWS isn't issuing WSW's.

That's a +3SD +NAO on the 18z GEFS hr 168. It connects with the lower part of the measurement in Europe and the US, too. Just impressive.. we haven't had much of that strength since 1997 (0 +analogs for the exact dates, Jan 22-28, since 1997).

I don't know.. this mid-Winter is doing a pretty good job with cold. I think we just really that much underestimate the PNA.. When it's positive, cold air seems to be no problem.

Cold water is starting to breach the central-subsurface region https://ibb.co/VBXkpzz Believe it or not, but this central region correlates most to PNA, so if we start seeing below average there it could favor more -PNA conditions going forward. Interesting because the surface is still in Strong-Nino territory, subsurface index is about -0.1 right now. Late last Winter we had +subsurface and a weak Nina at the subsurface, and we saw a very -PNA February, so the relative difference correlation that I estimate to be true didn't hold up.. so it should be interesting to see what happens this Feb/March with the opposite relative condition occurring this year (neg subsurface, +El Nino surface).

I might go with an above average March. 3/3 roll forwards support it so far.. plus the SOI is like +25 lately 18 Jan 2024 1011.14 1002.35 19.70 2.12 -2.79 17 Jan 2024 1011.11 1000.95 26.15 1.47 -3.26 16 Jan 2024 1011.57 1000.25 31.61 0.63 -3.72 15 Jan 2024 1012.37 1001.05 31.61 -0.18 -4.22 14 Jan 2024 1012.57 1002.35 26.43 -0.84 -4.63 13 Jan 2024 1012.32 1002.65 23.84

The +PNA has really improved on medium range models over the past few days, and the long range.. looking at next 15 days, we have a pretty good Pacific for the whole period.. This is a pattern change from what we were seeing in Dec and early January. I'm just afraid the indices waxes and wanes lately, so far in this El Nino

It's new snow coming. I like it because it uses upper air temps to assess accurate ratios.

0z Hrr has a good strip of 4"+ through central MD on snow depth! I wonder if they are narrowing in on that it was the same area that got hit hardest by the last storm..