cptcatz Posted yesterday at 04:48 PM Share Posted yesterday at 04:48 PM What a season! It's September 19 and a new weak tropical depression near the Azores is getting all the hype. 2 Link to comment Share on other sites More sharing options...
Boston Bulldog Posted yesterday at 07:37 PM Share Posted yesterday at 07:37 PM Bursting convection over the center, I think we have Fay at 5pm. Regardless of final intensity, these systems in the subtropics can be quite well organized and aesthetic looking if they get their act together Link to comment Share on other sites More sharing options...
yoda Posted 23 hours ago Share Posted 23 hours ago 1 hour ago, Boston Bulldog said: Bursting convection over the center, I think we have Fay at 5pm. Regardless of final intensity, these systems in the subtropics can be quite well organized and aesthetic looking if they get their act together Not yet Tropical Depression Six Discussion Number 2 NWS National Hurricane Center Miami FL AL062026 900 PM GMT Sat Sep 19 2026 A new burst of convection has formed over the depression, that mostly covers the center of the system. However, the bulk of the convection is still on the northern side of the cyclone at this time, implying that some wind shear is still affecting it. The most recent TAFB Dvorak fix was T2.0/30 kt, which is the same as the previous cycle. Therefore, the initial intensity remains at 30 kt for this advisory. Tropical Depression Six is still moving slowly, but has started to show a bit more motion towards the north-northeast. The cyclone should move more northeastward for roughly the next 36 h as a trough to the north weakens a low- to mid-level ridge to the northeast. Following this, at around 48 h, the ridge should build back towards the west, which in turn will force the cyclone to move southwestward for the rest of the forecast period. The current NHC forecast track is very similar to the previous forecast track with small adjustments to the track and speed, and remains in good agreement with HCCA and GDMI. The cyclone should move into a slightly more favorable environment, between two areas of intense shear, and so there a good chance for intensification to occur for the next day or so. After 36 h, the system should move into an area of higher shear as the previously mentioned trough moves closer. This should lead to a gradual weakening of the system. The depression is expected to become a post-tropical remnant low around 72 h, and then dissipate around 120 h. There is still some uncertainty in the forecast of when the cyclone will become post-tropical and then dissipate, as both could possibly occur sooner than what is currently forecast. The new NHC intensity forecast is still in the middle of the guidance envelope, and is closely align with HCCA and just under GDMI for peak intensity. FORECAST POSITIONS AND MAX WINDS INIT 19/2100Z 32.9N 33.4W 30 KT 35 MPH 12H 20/0600Z 33.3N 33.2W 40 KT 45 MPH 24H 20/1800Z 33.8N 32.9W 45 KT 50 MPH 36H 21/0600Z 33.7N 32.4W 40 KT 45 MPH 48H 21/1800Z 32.9N 32.5W 35 KT 40 MPH 60H 22/0600Z 31.7N 33.4W 30 KT 35 MPH 72H 22/1800Z 30.5N 34.8W 25 KT 30 MPH...POST-TROP/REMNT LOW 96H 23/1800Z 28.6N 38.3W 20 KT 25 MPH...POST-TROP/REMNT LOW 120H 24/1800Z...DISSIPATED $$ Forecaster Katz/Berg 1 Link to comment Share on other sites More sharing options...
vortex95 Posted 22 hours ago Share Posted 22 hours ago 10 hours ago, NorthHillsWx said: It was almost like NHC was just hoping it would go away so they didn’t have to classify it As much as they would not admit, sometimes that is a factor. Here is something similar. Recall the system S of New England Jan 2023? That was a hurricane, but they blew it off operationally. Yes, a few months later they included it as a 60 kt STS, but not operationally declaring it when it was clear what it was? So that suggests that if they can get away w/ not doing it operationally, and just let post-season analysis "deal w/ it," they will. Another motivation could have been that a hurricane close to the East Coast "out of blue" in Jan? The public and media would freak and perhaps they did not want to deal w/ all that, but again, we should not be summarily constrained by policy or social/political factors when it comes to operational meteorology and calling things for what they are. And this ended up impacting marine Canada, so it was not a "fish storm." And put it this way, we've seen far worse looking systems declared/called a TC. So where is the meteorological consistency here? Loop here: https://x.com/WxTca/status/1615532584016162822 Sfc and SST analysis https://x.com/burgwx/status/1615099242728628231 That is a clear eye and quite deep convection for Jan. I got T4.5 on it (77 kt) using Dvorak. Now granted, SSTs were 21-23 C, so that means less efficient mixing down of winds aloft, but still 65 kt is likely here. Notice when it approached Sable Island crossing a very sharp SST gradient, it actually looked best! The center passed just W of Sable island which recorded sustained winds of 49 kt. That was over much cooler SSTs, so again, when it was farther SW over 21-23 C, 65 kt would be easy. This is not armchair quarterbacking, nitpicking, or a borderline TC situation. This system's nature was obvious and screaming at you, and the model fcsts handled its ET to T transition warm seclusion very well), so this was not a "surprise." Like I have said, call wx phenomena for what they are in real-time. The atmosphere doesn't care about human-imposed rules or what we think, it does what it does, and we all look at the same data, so by doing this, you prevent push back/calling out/criticism to yourself! And I see on this forum, ppl sometimes say, "I can't believe it hasn't been declared yet" or "it obviously stronger (weaker) than that!" That's not just random complaints/musings all the time, many times such statements and observations have merit or are true! loop.mp4 2 Link to comment Share on other sites More sharing options...
vortex95 Posted 21 hours ago Share Posted 21 hours ago Talk about threading the needle. That anticyclonic cirrus shear plume is right on the doorstep of the core, and yet no shearing of the convection over the core. One thing about seasons like this, the TCs are often small. TD6 exemplifies this. At first glance in vacuum, you look at the EIR image below of the Atlantic, and go, "where is it?!" Areas of convection exists sig larger than TD6 here! Link to comment Share on other sites More sharing options...
vortex95 Posted 19 hours ago Share Posted 19 hours ago I spoke too soon. Strong anticyclonic shear is disrupting the core in the last few hr and the circulation getting elongated again. I would be surprised if they upgrade it to a TS at 03z, unless they get a good ASCAT or SAR pass showing TS-force winds. Link to comment Share on other sites More sharing options...
yoda Posted 17 hours ago Share Posted 17 hours ago 1 hour ago, vortex95 said: I spoke too soon. Strong anticyclonic shear is disrupting the core in the last few hr and the circulation getting elongated again. I would be surprised if they upgrade it to a TS at 03z, unless they get a good ASCAT or SAR pass showing TS-force winds. Got close... but the ASCAT denied the upgrade Tropical Depression Six Discussion Number 3 NWS National Hurricane Center Miami FL AL062026 300 AM GMT Sun Sep 20 2026 The convective organization of the depression has increased somewhat since the last advisory, with multiple convective bands in the northern semicircle. This increase is reflected in the various subjective and objective satellite intensity estimates now suggesting the cyclone has reached tropical storm strength. However, an ASCAT-C overpass showed maximum winds near 30 kt. Based mainly on that the initial intensity will remain 30 kt. Cirrus cloud motion indicate that an upper-level cyclonic shear axis is located near or just south of the center, with very strong upper-level westerly flow over the southern part of the low-level circulation. The initial motion is 020/4 kt. The depression is in an area of weak steering currents between a low- to mid-level ridge to the east and a deep-layer mid-latitude trough to the northwest. During the next couple of days, the southern portion of this trough is expected to weaken, with a low- to mid-level ridge developing to the west and northwest of the tropical cyclone. This should result in the cyclone stopping its north-northeastward motion and turning toward the southwest. A general southwestward motion is then likely until the system dissipates. The track guidance has shifted a bit westward after 36 h, and the new forecast track is also nudged a bit west of the previous track. The dynamical models are forecasting a small upper-level low to develop along the cyclonic shear axis near or south of the tropical depression during the next 12 h or so. This is likely create a less hostile shear environment around the depression that should allow some intensification. After 24 h, the models are in good agreement that strong upper-level northerly or northwesterly winds will move over the cyclone, creating strong shear and causing weakening. While the models forecast the shear to diminish after 48-60 h, the cyclone or its remnants will be in an area of dry air and subsidence that cause cause the convection to dissipate. The new intensity forecast shows the depression becoming a tropical storm for a day or so, followed by weakening to a remnant low between 60-72 h. Based on the dynamical models, the remnant low is forecast to weaken to a trough between 96-120 h. FORECAST POSITIONS AND MAX WINDS INIT 20/0300Z 33.3N 33.2W 30 KT 35 MPH 12H 20/1200Z 33.8N 33.0W 40 KT 45 MPH 24H 21/0000Z 34.0N 32.5W 45 KT 50 MPH 36H 21/1200Z 33.6N 32.4W 40 KT 45 MPH 48H 22/0000Z 32.7N 32.9W 35 KT 40 MPH 60H 22/1200Z 31.6N 33.9W 30 KT 35 MPH 72H 23/0000Z 30.4N 35.6W 25 KT 30 MPH...POST-TROP/REMNT LOW 96H 24/0000Z 29.0N 39.1W 20 KT 25 MPH...POST-TROP/REMNT LOW 120H 25/0000Z...DISSIPATED $$ Forecaster Beven Link to comment Share on other sites More sharing options...
NorthHillsWx Posted 11 hours ago Share Posted 11 hours ago Fay is born, now expected to peak at 50 kts. Still think there’s an outside chance this storm can approach hurricane intensity. Deep convection has been increasing near the center of the cyclone and in curved bands on its north side over the past several hours. The latest satellite intensity estimates have also increased and range from 35 to 47 kt. Considering these data and the ASCAT pass from last night, the initial wind speed is nudged up to 40 kt. This makes the system Tropical Storm Fay. The storm is quite compact, with its tropical-storm-force winds estimated to extent only about 40 n mi from the center and the associated convection extends about 100-150 n mi across. The combination of relatively moist air and baroclinic enhancements from an approaching mid- to upper-level trough should cause Fay to gain some more strength during the next 12 to 24 hours. However, the trough is expected to lift out on Monday, and an increase in shear and intrusions of dry air should end the opportunity for strengthening and cause weakening by that time. Fay will likely become a remnant low on Tuesday and dissipate by the end of the week as it is expected to remain in unfavorable environmental conditions. The NHC intensity forecast is a little higher than the previous one, and lies near the high end of the guidance in the short term given the improvement in the storm's organization and expected baroclinic support. Fay is drifting to the north-northeast, with the latest initial motion estimated to be 020/4 kt. This general motion should continue for about 24 hours. However, a low- to mid-level ridge is anticipated to build to the north of the storm on Monday, and that should cause Fay to turn southwestward and gradually accelerate in that direction during the early and middle portions of the week. The NHC track forecast is similar to the previous one and near a blend of the HCCA, GDMI, and TVCN aids. FORECAST POSITIONS AND MAX WINDS INIT 20/0900Z 33.7N 33.1W 40 KT 45 MPH 12H 20/1800Z 34.1N 32.8W 50 KT 60 MPH 24H 21/0600Z 34.0N 32.3W 45 KT 50 MPH 36H 21/1800Z 33.3N 32.4W 40 KT 45 MPH 48H 22/0600Z 32.0N 33.3W 35 KT 40 MPH 60H 22/1800Z 31.0N 34.8W 30 KT 35 MPH...POST-TROP/REMNT LOW 72H 23/0600Z 30.1N 36.5W 30 KT 35 MPH...POST-TROP/REMNT LOW 96H 24/0600Z 28.9N 40.0W 25 KT 30 MPH...POST-TROP/REMNT LOW 120H 25/0600Z...DISSIPATED 2 Link to comment Share on other sites More sharing options...
Windspeed Posted 7 hours ago Share Posted 7 hours ago Fay is perfectly located in a bubble of favorablility surrounded by chaos. If it's going to make a run at hurricane intensity, it needs to do it fast. It's going to get decapitated on Monday. How much strengthening it can do by tonight remains to be seen, but convection continues to blossom, and the small vortex looks nice and stacked with the low-level and mid-level circulations for now. Baroclinic enhancement combined with warm SSTs and a cold-pool aloft would support a short period of rapid intensification if encroaching shear and dry air can hold off until Monday morning. The limited potential is there to end the hurricane drought, but Fay needs to do its thing pretty much immediately. Being in the middle of nowhere without recon to sample and only ASCAT means we will literally need to see an eye form most likely to increase the odds of an upgrade. Being such a tiny vortex, remote sensing techniques might just as well miss / fail to detect any short-lived wind intensity estimate around its tiny core to support a Category 1.EDIT: I flirted with making a thread, but Fay is no threat to land and will dissipate within a few days. Other than the meteorological significance for the 2026 season, not much else discussion-wise would matter. We may as well just leave Fay's discussion in the main thread here for that purpose alone. 4 Link to comment Share on other sites More sharing options...
NorthHillsWx Posted 7 hours ago Share Posted 7 hours ago 5 minutes ago, Windspeed said: Fay is perfectly located in a bubble of favorablility surrounded by chaos. If it's going to make a run at hurricane intensity, it needs to do it fast. It's going to get decapitated on Monday. How much strengthening it can do by tonight remains to be seen, but convection continues to blossom, and the small vortex looks nice and stacked with the low-level and mid-level circulations for now. Baroclinic enhancement combined with warm SSTs and a cold-pool aloft would support a short period of rapid intensification if encroaching shear and dry air can hold off until Monday morning. The limited potential is there to end the hurricane drought, but Fay needs to do its thing pretty much immediately. Being in the middle of nowhere without recon to sample and only ASCAT means we will literally need to see an eye form most likely to increase the odds of an upgrade. Being such a tiny vortex, remote sensing techniques might just as well miss / fail to detect any short-lived wind intensity estimate around its tiny core to support a Category 1. These storms tend to surprise you when they form under the conditions highlighted in your post. Would not be the first time a system south of the azores was dismissed only to pop an eye and surprise everyone. Agreed on the upgrade here, would almost have to acquire the eye for an upgrade as it is going to be extremely challenging to get a well timed ASCAT this afternoon when it peaks 3 Link to comment Share on other sites More sharing options...
NorthHillsWx Posted 7 hours ago Share Posted 7 hours ago Looking at satellite trends this is easily our best chance to break the hurricane drought of 2026 1 Link to comment Share on other sites More sharing options...
WxWatcher007 Posted 5 hours ago Share Posted 5 hours ago Thought about a thread too but will keep discussion here. I think a mod could always move these posts to a thread for posterity if Fay pulls off something crazy. It's a very narrow window but as y'all stated it's in one of where it can take off. That'd obviously be fantastic for my peak season forecast. Tropical Storm Fay Discussion Number 5 NWS National Hurricane Center Miami FL AL062026 300 PM GMT Sun Sep 20 2026 Deep convection continues to build near the center of Fay over the last several hours. The current objective intensity estimates from UW-CIMSS are in the range of 39-52 kt, and the most recent TAFB Dvorak fix was a T3.0/45 kt. In addition, there was an ASCAT pass that showed a peak wind vector of 43 kt. Given the uncertainties due to undersampling, the initial intensity for the storm has been raised to 50 kt. The cyclone continues to remain very compact with its tropical-storm-force winds estimated to extend out to about 40 n mi. Both a relatively moist environment and positive interactions with an approaching mid- to upper-level trough should allow Fay to further intensify for the next 12 to 24 hours. After the trough lifts on Monday, the increase in wind shear and dry air should lead to a gradual weakening of the cyclone. The current NHC forecast calls for Fay to become a post-tropical remnant low by Tuesday and then dissipate by the end of the week. The official intensity forecast is a little higher than the model guidance in the short term to account for the storm's structure being more improved and the expected baroclinic support from the trough. This small system could approach hurricane strength later today or tonight. Fay is slowly moving off to the northeast, with the initial motion estimated around 010/5 kt. This general motion should continue for the rest of the day. However, a low- to mid-level ridge is expected to build to the north of the storm by Monday, which will cause Fay to turn southwestward and gradually accelerate in that direction over the course of the forecast period. The current NHC track forecast is similiar to the previous track forecast with a few minor adjustments and remains in good agreement with HCCA and GDMI. FORECAST POSITIONS AND MAX WINDS INIT 20/1500Z 34.1N 33.0W 50 KT 60 MPH 12H 21/0000Z 34.3N 32.6W 60 KT 70 MPH 24H 21/1200Z 33.9N 32.4W 50 KT 60 MPH 36H 22/0000Z 32.9N 32.9W 45 KT 50 MPH 48H 22/1200Z 31.7N 34.2W 35 KT 40 MPH 60H 23/0000Z 30.6N 35.9W 30 KT 35 MPH...POST-TROP/REMNT LOW 72H 23/1200Z 29.8N 37.7W 25 KT 30 MPH...POST-TROP/REMNT LOW 96H 24/1200Z 28.8N 41.1W 25 KT 30 MPH...POST-TROP/REMNT LOW 120H 25/1200Z...DISSIPATED $$ Forecaster Katz/Pasch Link to comment Share on other sites More sharing options...
WxWatcher007 Posted 1 hour ago Share Posted 1 hour ago I had to do a double take to make sure I had the right storm. Clearly making a run now. Another deep burst may be enough to get over the top. Link to comment Share on other sites More sharing options...
NorthHillsWx Posted 1 hour ago Share Posted 1 hour ago 29 minutes ago, WxWatcher007 said: I had to do a double take to make sure I had the right storm. Clearly making a run now. Another deep burst may be enough to get over the top. I think our hurricane-less streak is ending at 5 pm Link to comment Share on other sites More sharing options...
NorthHillsWx Posted 59 minutes ago Share Posted 59 minutes ago Last few frames of satellite look like an eye feature is forming. Very likely close to hurricane strength at the moment and still time to strengthen 1 1 Link to comment Share on other sites More sharing options...
MANDA Posted 44 minutes ago Share Posted 44 minutes ago 12 minutes ago, NorthHillsWx said: Last few frames of satellite look like an eye feature is forming. Very likely close to hurricane strength at the moment and still time to strengthen Agreed. This is very close. Amazing we've had to wait until 9/21 and then have it happen out of the deep tropics at 34N and 33W. Pretty fitting for this season. Regardless the hurricane free streak should break with Fay. Link to comment Share on other sites More sharing options...
WxWatcher007 Posted 37 minutes ago Share Posted 37 minutes ago Link to comment Share on other sites More sharing options...
Boston Bulldog Posted 27 minutes ago Share Posted 27 minutes ago Looks great under the hood and from space. Fay will be a hurricane, if not by 5pm then certainly by 11pm 1 Link to comment Share on other sites More sharing options...
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