GaWx

This jibes with my response 3 posts above yours to Jeff B.’s implied false connection of the current developing super-Nino to increased very intense heat in the E US based on his Tweet. Only the summer of 1991 was hot overall in the E US as I said, which is essentially agreed with by your lists. I’m referring to Poughkeepsie’s 102 on 7/19/1991. None of the other developing super-Ninos prior to 2026-7 are on any of your 4 lists.

I don’t agree at all with Jeff B. implying a connection of super-Nino and the current E US heatwave. The mean temp in July (and also in summer as a whole) comes out close to normal rather than hot in the E US when averaging RONI based super strong El Niños. Hardly any were hot. 1957, 65, 72, and 97 were slightly cool. 1982 and 2015 were NN. Only 1991 was hot. That’s just 1 of the 7! That’s enough for me to say that the upcoming super-El Nino in combo with GW is not the direct cause for the current E US heatwave as Jeff said. GW, by itself, obviously favors hotter heatwaves than when the Earth was cooler. But the supposed super-El Nino piece of this, itself, correlating to E US summer heat does not compute to me at all. I also don’t at all agree with Jeff calling this one of the most expansive U.S. heatwaves. That’s simply not true. Intense in the VA to Boston corridor? Yes. But not one of the most expansive U.S. heatwaves.

Thank you, but I don’t think I’m going to do July. I’m currently too busy to take enough time to analyze the data (forecast and historic) well.

Thanks, Don. I’ll reiterate that I was referring to only E US rather than all of the U.S. mean temps (especially in July) and that I didn’t even consider 2023 because it was only borderline moderate/strong on a RONI basis with a peak of only +1.49. So, 2015, with its heatwave in the Pacific NW (nowhere close to the E US) and 2023 not being nearly strong enough to count as super-Nino per the now official (per NOAA) RONI basis don’t even count for me against super El Niño E US heat. And even if 2023 were counted, its heat was most concentrated in the SW/SC rather than E US.

I’ll reiterate that I thought Chris Martz looked really bad due to saying “it’s called summer” and for saying “heat dome” wasn’t the correct term. However, I also said Jeff B. was wrong for calling the current/upcoming US heatwave one of the most expansive in history. Here again is Chris’ post responding to Jeff: But I forgot to earlier mention this: The mean temp in July (and also in summer as a whole) comes out close to normal rather than hot in the E US when averaging RONI based super strong El Niños. See image below. Hardly any were hot. 1957, 65, 72, and 97 were slightly cool. 1982 and 2015 were NN. Only 1991 was hot. That’s just 1 of the 7! That’s enough for me to say that the upcoming super-El Nino in combo with GW is not the direct cause for the current E US heatwave as Jeff said. GW, by itself, obviously favors hotter heatwaves than when the Earth was cooler. But the supposed super-El Nino piece of this, itself, correlating to E US heat does not compute to me at all. Thus whereas I thought Chris’ post was terrible, I also think Jeff’s was pretty bad, itself. @donsutherland1

As bad as it will be in much of the SE, consider that the NYC forecasted low for July 4th is a very oppressive 81 F!

Thanks. Looking forward to your update. Per the following source (AMSR2), the current Arctic ice area is now getting pretty low with it a bit lower than 2020 and 2016, ~0.5 million sq km lower than 2024, and ~0.4 million sq km lower than the 2013-24 mean. Do you know anything about the reliability of this source?

The CFS AAM forecast at the site I follow just updated for the first time in 6 days: Prior run there is 0Z of 6/25: strongest multi week mean I’ve ever seen/saved with it way up at a mean of +2.8 to +3.3 July 8th to end of run, which is July 29th: Brand new run (0Z of 7/1): still a very strong +AAM but not surprisingly no longer to the near record breaking levels of the 0Z 6/25 run as mean is ~+2.5 on July 8th instead of +2.8, mean then has a near term peak of ~+2.65 on July 12th-13th, and then it’s mainly low to mid +2s July 14-29th instead of +2.8 to +3.3:

Thanks, Chris. I believe that would make the most up to date relative ENSO anomalies ~0.6C cooler than 1981-2010 anomalies in June. Is that incorrect?

Please post July ‘26 obs from your area as well as current wx events/obs in July for other areas. It’s going to be quite hot with some records possibly being threatened especially in NC during the first part of the month. @buckeyefan1please pin this. Thank you.

Relative ENSO region anomalies are currently ~0.5 C cooler than 1991-2020 anomalies and likely ~0.6 to 0.7C cooler than 1981-2010 anomalies.

Note that this is based on very outdated 1981-2010 climo. If instead it were using relative climo, that skinny La Niña tongue wouldn’t be as skinny since it would be compared to much more up to date warmer climo taking into account avg. warming of global tropical waters from GW. For the same reason, the surrounding tropical waters’ anomalies there wouldn’t be as warm.

My total rainfall in June was ~5.35”.

It’s official. The DMI daily mean Arctic temp N of 80N, with the help of a +AO, never made it up to freezing in June! The previous latest to first get to freezing was June 20th, set in 2013. The June 30th # was -0.25C. Let’s see whether it gets above 0C on July 1st: @Stormchaserchuck1

If we stick to just high end moderate/strong/super Nino fall/winter peak with +QBO Dec, Dec was warm in all 5: 1957, 1982, 87, 94, 2015. Therefore, I think warm Dec is notably climo favored as of now. 1997 is neutral QBO, not +QBO. So, it doesn’t need to be considered.