WxWatcher007

Gale-force winds extend outward up to 160 miles (260 km) from the center. A sustained wind of 71 mph (114 km/h) with a gust to 86 mph (138 km/h) was recently reported by a station on Terceira Island in the central Azores at an elevation of 884 feet (269 m). Closer to sea level, a wind gust to 58 mph (93 km/h) was measured at Ponta Furada on Faial Islan

That was all time horrific. Makes me sick even thinking about it.

Pig ridge stretching from International Falls to Iceland?

I think it’s still worth plenty of caution to look too much into intensity guidance given the lack of a center. We do know there will be a favorable environment window early, followed by likely hostile conditions. But how much that impacts Imelda will depend on how structurally sound any inner core is.

Maybe. This is a pretty anomalous ridge for this time of year I think.

I'm still a bit skeptical of such a strong ridge, but if that is the case we will need to watch if future Imelda is able to get back offshore. If so, the guidance seems to believe some sort of regeneration is possible, and with that ridge rolling east that would probably lead to something running up the coast either inland or just offshore. Fantasy range but something to monitor.

That is an impressive ridge on the GFS that stops future Imelda’s northward progress right in its tracks.

Hammering home the point that—for anyone lurking—even with the trend from the Euro and GFS, there is still a **high** amount of uncertainty on eventual track and intensity. Nothing is locked in yet.

First time all season this thread has been hot lol

Not sure if it’d happen today as the 2pm TWO didn’t mention it, but maybe at 11pm and almost certainly tomorrow given it’s proximity to the islands.

This could really be a prolific rainmaker if it gets trapped under the ridge.

Only in New England.

I think regardless of track there’s going to be a flood risk maybe up to the Mid-Atlantic given the upper level setup. Hopefully not to this extent though.

This is more long range speculation, but I do wonder if there’s a chance of remnants or something if the vorticity gets pushed back OTS after the original landfall. 00z euro and 12z gfs hint at it, but obviously that’s weenie range.

I was just going to post—no surprise being just over 100 hours out but the GEFS essentially follow the op but with more of a NC threat. Everything is still on the table but I’m not convinced this hooks well into SC. I think that’s an unusual track climatologically speaking.

Some of the second tier models still have a binary interaction that pulls future Imelda away, but with the Euro/GFS/AI models aligning at least right now that increases the risk to the coast substantially imo. Still, any one solution is far from guaranteed.

Yup building ridge to the north just traps it. Of course, that’s the furthest out and least confident part of the forecast.

There will be a window for significant intensification but idk how long it’ll be open for. You have near record warmth near the Bahamas and critically this should establish a nice outflow channel with a ULAC over the region and cutoff to the west. It’ll be in near ideal conditions. However, nearing the coast southerly shear could impart dry air and the immediate coastline has cooler SSTs. Folks should remember that major EC strikes are rare. Since 1990 it’s only been Andrew ‘92, Fran ‘96, and Jeanne ‘04.

Not surprising but quite a shift.

Reposting here.

I now believe that Invest 94L is a bona fide threat to the U.S. East Coast. Still, there is enormous uncertainty regarding the intensity and track of what is likely to become Imelda in the coming days. First, let's take a look at Humberto, which will play a critical role in the track of 94L. Although still sheared with the center likely west of the deeper convection, this tropical storm is on a clear organizing trend. The spacing between Humberto and 94L has been a point of discussion for days now. How close these two get will determine whether there will be a binary interaction. The GFS, which after sniffing out the potential for TC development in the SW Atlantic then kind of got lost in trying to consolidate the two waves, has clearly trended toward the Euro--to the extent you can with this much uncertainty in the setup. These are the last 5 GFS runs. Note how the trend has been two-fold. First, there is the obvious change that makes 94L stronger. That decreases the likelihood that it is absorbed by Humberto and given an escape route OTS. The second change is the spacing. It's subtle, but can be seen easily. A stronger and more organized 94L would likely have the outflow necessary to keep Humberto at bay. On the Euro, you see a similar trend with regard to spacing. Note how the escape routes of 1) Humberto and 2) NW flow in New England and SE Canada are blocked. These are the last 3 runs--not including this morning's 06z op run which continues the trend. The spacing difference is more than enough here to limit the impact of Humberto. Are we guaranteed a SE coast hit? Not at all. There are a lot of nuances remaining, including how quickly Humberto intensifies and its forward speed, the amplitude of the ridge and how it develops, and the amplitude of the cutoff over the CONUS. It is very clear, however, that 94L is poised to develop, and it poses a risk to at least the SE coast with regard to a direct hit, with possible impacts further north depending on track.

I wouldn't look at the verbatim output seriously yet. Look at the upper level pattern.

For New England, this one looks gone for now for a direct strike. The only "hope" would be what the 00z Euro showed and some sort of regeneration in the long range as the ridge rolls east. Or something like the EPS this hits the Carolina coast first but continues to be dragged northward with a more robust ECONUS cutoff. Even under that scenario, idk if we see a real EC runner and obviously the further inland the weaker it becomes. Though that would probably create a big rain setup. This is absolutely a legit threat for the southeast though. Fujiwhara is rare in the Atlantic for a reason, and even though Humberto is likely to become a major you look at 94L this morning and that's not a system that's just going to get absorbed. It may very well get going quickly once it can develop a LLC on the other side of Hispaniola.

No surprise but officially expected to become our next major now. Tropical Storm Humberto Discussion Number 2 NWS National Hurricane Center Miami FL AL082025 1100 PM AST Wed Sep 24 2025 The cloud pattern of Humberto has changed little in organization over the past several hours. Some rudimentary convective banding features are evident but the cold cloud tops are rather fragmented at this time. Upper-level outflow is being restricted over the western portion of the circulation, at least partially due to the outflow from disturbance 94L located near Puerto Rico. The current intensity estimate is set at 40 kt in agreement with a recently received scatterometer pass. The storm center is not yet very well-defined so the initial motion is a rather uncertain 300/10 kt. Over the next few days, Humberto should be steered generally west-northwestward to northwestward on the southwestern side of a subtropical mid-level high pressure area. The steering scenario for the tropical cyclone will likely become more complicated in 2-3 days due to the interaction with the developing system 94L to the west. The official forecast track is quite similar to the previous one, and roughly in the middle of the guidance. However, due to the likely complications in the evolution of the steering flow, there is lower than normal confidence in this track forecast. Global models suggest that there will be some relaxation in westerly vertical wind shear over Humberto in the coming days. This, along with very warm ocean waters and a moist mid-level air mass, should lead to strengthening. The system will probably become a hurricane in a couple of days, and then strengthen into a major hurricane. The official intensity forecast is in reasonable agreement with the simple and corrected model consensus, including the latest FSU Superensemble forecast. FORECAST POSITIONS AND MAX WINDS INIT 25/0300Z 20.7N 55.8W 40 KT 45 MPH 12H 25/1200Z 21.4N 56.7W 45 KT 50 MPH 24H 26/0000Z 21.9N 57.3W 50 KT 60 MPH 36H 26/1200Z 22.4N 57.9W 55 KT 65 MPH 48H 27/0000Z 22.9N 58.8W 60 KT 70 MPH 60H 27/1200Z 23.4N 60.1W 70 KT 80 MPH 72H 28/0000Z 24.0N 62.0W 85 KT 100 MPH 96H 29/0000Z 26.3N 66.0W 100 KT 115 MPH 120H 30/0000Z 30.1N 68.9W 100 KT 115 MPH $$ Forecaster Pasch/Blake