aspen wrote:Teban54 wrote:aspen wrote:Andy’s saying the dry air pattern is similar to 2022. The big question is: why? What did we miss about 2024 that led to this 2022-like dry air pattern?
[xpost] https://x.com/AndyHazelton/status/1826704821891879165[/xpost]
Ultimately, just because two years both seem dry on August 22 doesn't mean the underlying causes are the same. By that argument, you could have compared every such year to 2013. And I don't think "Andy said so" is sufficient, either -- even more so because the last time he said this about 10 days ago, someone on Storm2K posted a detailed analysis that showed 2024's patterns were the complete opposite of 2022.
I remember someone posted his pre-Dorian tweet where he thought we’d go the rest of August 2019 without a single NA formation. So yeah he doesn’t always nail his assessments, but I found his comparison of the dry air in the eastern MDR in 2022 and 2024 interesting.
And yeah we’re not seeing the same wave-breaking as 2022. As far as we can tell at this point, most issues with 2024’s muted TCG and delayed switch-flip are due to the overactive AEJ/monsoon. But this is another instance of a negative factor that wasn’t picked up during the pre-season indicators timeframe, even though there may have been hints towards the strength of the AEJ in the spring model runs. And the delayed switch in combination with the factors destroying most waves does give off an implication that we may be missing something else. There’s always at least a few curveballs in forecasting a hurricane season; this seems to be a particularly challenging and confusing year.
Also it’s still kind of funny how 2022 has basically become 2013 2.0.
I was going to mention this earlier because of Andy's post. It certainly seems that a 2022 repeat may be in the works in terms of a very hostile Atlantic through peak season. It also very well could join 2023 as the only seasons that the Atlantic was well above normal SST's wise that didn't yield a active/hyperactive hurricane season. I think it is becoming more and more clear at this point that this hurricane season is not going to come close to expectations from even top forecasting agencies and that they will very likely be facing backlash here soon sad as it is. And that just isn't in terms of named storms, I'm talking every metric.
Yes, I recall vividly that dry air intrusions like the ones we are seeing now were what made ACWB such a thorn in the side of the Atlantic in 2022. This year it is happening not because of ACWB, but because of three things...1.) Strong AEJ being too far north ejecting more dust into the tropical Atlantic, 2.) AEJ being too strong, and 3.) a synoptic pattern set up over Europe that further promotes a easterly flow across the Sahara pushing more dust over the tropical Atlantic.
Yes, the ITCZ will move south and the AEJ weakens going forward most likely, but the ridging looks to stay firmly in place across Europe for the foreseeable future. With that said, it's no wonder the models don't show anything developing out there even into early September. They aren't missing genesis, they are accurately depicting a horribly hostile environment even into peak season very similar to 2022.
IMO, the hyperactive hurricane season ship has sailed and the above average ship is leaving the port. Beryl could very well have been a stray and will go down as one of the biggest anomalies in the history of the Atlantic basin not only because of it happening so early, but because of the hurricane season it is looking to precede that may leave many scratching their heads for years to come.
I'll end though with yes, it only takes one. 2022 still had Ian. We already have had Beryl, Debby and Ernesto, so it has already been a high impact season for sure. Just goes to show that because a quiet season is a quiet season doesn't mean it still can't be horrendous. Hopefully we go the rest of the season unscathed but we shall see, only time will tell.