GaWx

0Z CMC: 0Z JMA: 0Z UKMET like the 12Z and 18Z is well offshore.

0Z GFS has the coastal directly affecting the OB rather substantially. The 0Z Icon is similar to recent runs a bit further offshore than this GFS.

What are your thoughts about the horrible 2023 FL Keys bleaching event caused by prolonged record hot SSTs in the low 90s? Key West buoy hit an amazing 92.8F during the late afternoon of 8/2/23! Several of us here followed this disaster and posted about it: The devastation there was amplified by the persistent heat as measured by the amazingly high DHW: Two species were nearly wiped out! The good news though is that they saved genetic material from them thank goodness: However, even these coral species are not entirely lost. During the heat wave, scientists saved about 150 genotypes, a.k.a. genetic material, of elkhorn coral and 250 genotypes of staghorn. They’re stored in biobanks at the Mote laboratory and The Reef Institute in West Palm Beach, Florida. The material will be used to propagate and reintroduce staghorn and elkhorn corals once conditions are more favorable. https://www.sierraclub.org/sierra/two-florida-coral-species-were-nearly-wiped-out-heat-wave

Ike is the only on the list not a MH at landfall. However, that’s a technicality because it was at the high end of cat 2 and it was also gigantic in size! I wonder how high the surge was for these devastating hurricanes in comparison: -Sea Islands of 1893 -Galveston H of 1900

Isn’t 1938 also about a very high storm surge?

18Z UKMET is even further away from the E coast than the 12Z! So, as of now, the UKMET is by a good margin the least threatening for a close pass of the E coast!

The 18Z GFS came well W and is thus the most threatening GFS run yet by far to the E coast with it only 200 miles ESE of Hatteras as its closest! Also, the 18Z Icon has come back W a bit from the 12Z, which itself was less threatening than its 0Z that was coming into the SE. Back to 12Z, the JMA has it for its first time and hits much of the SE solidly with this with much of the Carolinas and S VA getting a very beneficial 2”+ of rain the next 8 days:

18Z GFS is the most threatening GFS yet to the E coast by far with it only 200 miles ESE of Hatteras as its closest! Also, the 18Z Icon has come back W a bit from the 12Z, which itself was less threatening than its 0Z that was coming into the SE. The 12Z JMA has it for its first time and hits the SE US pretty potently with a very beneficial 2”+ for much of the Carolinas and S VA! Edit: 18Z UKMET is even further away from the E coast than the 12Z! So, as of now, the UKMET is by a good margin the least threatening for a close pass of the E coast!

The NAO is higher on today’s GEFS mean vs that of two days ago: two days ago: peaking 10/15 at +1.0 and then dropping to -1 Today peaks not til 10/19 and with that being up at +1.3 and then drops only to -0.7 followed by a quick bounce that gets back up to -0.2 on 10/27 vs it still being down at -0.9 on 10/27 two days ago @Stormchaserchuck1

The 12Z Euro still has the E coast storm next week. So, currently the 12Z run non-AI main global models with it are the CMC (its first time) and the Euro (3rd time in a row at 0Z/12Z as 6Z/18Z have yet to have it, which I could tell because 144 hours was far out enough to tell). Also, the 12Z Euro AIFS still has it.

My stance has been and still is: -whereas CC/AGW has its clearly detrimental effects and thus I’m not happy about it (plus I selfishly prefer cold over warmth way down here in the deep SE), its effects aren’t all bad and that’s naturally largely being ignored by the extreme doomsayers. I‘m referring mainly to the increased greening of the globe that has occurred and also the reduced number of deaths from cold, which has killed many more than heat per organizations that compile the stats even though the balance could change if it gets hot enough, of course -there very well could be some negative feedback loops that aren’t being modeled well as regards how much warmer it will ultimately get, which if true would mean that the worst case scenarios aren’t realistic

Full rundown of 12Z main global non-AI for the possible E coast storm next week excluding the not yet released Euro: The 12Z UKMET, after 3 full runs in a row with an E coast “tropical cyclone”, has no TC and not even an E coast storm as the non-tropical low forms well offshore (300 miles) and then moves out NE from there to just NW of Bermuda. 12z Icon is much further offshore than its 0Z with little E coast effect. 12Z GFS is a bit closer (similar to the 0Z) but like for the 0Z the low still is far enough out to have little effect on the E coast as it then moves out. OTOH, the 12Z CMC is its first run with effects on the E coast with it getting caught 300 miles SE of the Carolinas and then then coming back WSW to Jacksonville on 10/23. That’s now an extreme outlier pending what the 12Z Euro shows. Edit: 12Z Euro and Euro-AI still have it.

Full rundown of 12Z main global non-AI for the possible E coast storm next week excluding the not yet released Euro: The 12Z UKMET, after 3 full runs in a row with an E coast “tropical cyclone”, has no TC and not even an E coast storm as the non-tropical low forms well offshore (300 miles) and then moves out NE from there to just NW of Bermuda. 12z Icon is much further offshore than its 0Z with little E coast effect. 12Z GFS is a bit closer (similar to the 0Z) but like for the 0Z the low still is far enough out to have little effect on the E coast as it then moves out. OTOH, the 12Z CMC is its first run with effects on the E coast with it getting caught 300 miles SE of the Carolinas and then then coming back WSW to Jacksonville on 10/23. That’s now an extreme outlier pending that the 12Z Euro shows.

No CMC has had any storm close enough to the E coast to have much, if any, effect on the E coast. The Euro has had 2 with it (12Z yest and 0Z today) with interestingly all of the shorter runs in between (6Z/18Z), which go out far enough to tell, having no E coast storm. OTOH, the UKMET’s last 3 full runs have had it and the newest (6Z) suggests it would also have it based on the last map (hour 66). The first Icon with it any effect was yesterday’s 12Z with the 18Z at least a close call. The 0Z was by far the most ominous with it coming back W at the end. It also had it but then the 6Z had it further offshore though it’s hard to tell if it would have come back close enough to have much effect in the NE. I’m guessing no. It appears based on hour 162 that the 12Z Icon won’t have much effect on even the OB. Edit: confirmed

Or it could be both depending on one’s location, of course. The NC Outer Banks could have large effects with most of the rest of the SE being beautiful.