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GaWx

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  1. For a good portion of the SE US, the thread linked below covers the near unanimous model prog for the development of a complex storm system this weekend in the NE Caribbean to SW Atlantic corridor. The models then move it NW toward the SE coast next week underneath a strong E US H5 to surface ridge. It could impact part of the SE as early as Election Day, especially near the coast and with highest chance of having significant impact that early in FL. Thus, inclement weather, which often has a noticeable effect on turnout even with just mundane systems, could turn out to be a major factor for certain SE US races, especially in FL. The system as depicted would very likely be subtropical and/or tropical at various timeframes:
  2. The models are pretty much unanimous on a complex storm system forming this weekend in the NE Caribbean or the SW Atlantic, which could then move NW to the SE US next week per model consensus. Subtropical and/or tropical cyclone development is very possible, if not likely. Thus, this could conceivably have a significant effect on SE US weather, especially near the Atlantic coast, on Election Day. This is from the 2PM TWO: 1. Southwestern Atlantic: A complex, non-tropical area of low pressure is expected to develop this weekend over the northeastern Caribbean Sea or the southwestern Atlantic. Some slow subtropical or tropical development of this system is possible afterward while it moves generally northward to northwestward through early next week. * Formation chance through 48 hours...low...near 0 percent. * Formation chance through 5 days...low...20 percent.
  3. 11/2/2022 is the first day on record with two hurricane designations on the same day in November. There have been only two other years on record with two simultaneous hurricanes in November: 1932 and 2001. But 2001's/1932's November hurricanes were designated three/four days apart. The latest date for two simultaneous hurricanes on record is November 10th, set in 1932. Next latest is November 5th, set in 2001.
  4. Update based on the near 100% expectation that Lisa will end up having significant land impacts: For the years 1995-2022, there have been 14 La Niña seasons. Out of these 14, only two had no significant western basin land impacts from TCs with TCG 10/22+: 1995 and 2000. The precursor to Wanda in 2021 (Invest 94L starting off NC) was very strong (winds over 100 mph in Mass.) and thus was counted. The last 10 La Niña seasons in a row (back to 2005) have fallen into this late impact category.
  5. BULLETIN Tropical Storm Lisa Advisory Number 6 NWS National Hurricane Center Miami FL AL152022 1100 PM EDT Mon Oct 31 2022 ...LISA FORECAST TO STRENGTHEN AS IT APPROACHES CENTRAL AMERICA... ...HURRICANE WATCH REMAINS IN EFFECT FOR BELIZE AND THE BAY ISLANDS OF HONDURAS... SUMMARY OF 1100 PM EDT...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...15.6N 79.1W ABOUT 290 MI...470 KM SSE OF GRAND CAYMAN ABOUT 615 MI...990 KM E OF BELIZE CITY MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...1002 MB...29.59 INCHES Tropical Storm Lisa Discussion Number 6 NWS National Hurricane Center Miami FL AL152022 1100 PM EDT Mon Oct 31 2022 Lisa is gradually becoming better organized with the associated convection deepening and expanding around the center. However, the system still lacks banding features. The Air Force Hurricane Hunters are currently investigating Lisa and so far have found flight-level winds as high as 46 kt and peak SFMR winds of about 35 kt. This data supports maintaining the initial intensity of 40 kt. The tropical storm is moving westward at about 10 kt. The track forecast reasoning seems fairly straightforward. A low- to mid-level ridge situated to the north of Lisa is expected to build westward. This pattern should keep the storm on a steady westward path, bringing the core of the cyclone near or just north of the Bay Islands of Honduras late Tuesday night/early Wednesday and across Belize by late Wednesday. The models are in fairly good agreement through landfall, and the NHC track forecast is very similar to the previous one during the next couple of days. After landfall, the models diverge with some solutions showing a northwest track and others a southwest motion. The NHC track forecast continues to split the difference, and it is a touch south of the previous one to be a little closer to the various consensus models. The environmental conditions appear relatively favorable for Lisa to strengthen during the next 36 to 48 hours. SSTs are quite warm beneath the cyclone and the vertical wind shear is expected to be low to moderate. There is some dry air near the system, however, which might slow the rate of intensification. The NHC intensity forecast follows the trend of the consensus models and continues to show Lisa becoming a hurricane when it is over the Gulf of Honduras early Wednesday, and it is expected to maintain that intensity when it makes landfall. Rapid weakening is expected after the system moves inland, and even though the forecast shows a 96-h point, it is certainty possible that Lisa could have dissipated by then. Key Messages: 1. Hurricane conditions are possible in the Bay Islands of Honduras early Wednesday and along the coast of Belize by Wednesday afternoon, where a Hurricane Watch is in effect. 2. Tropical storm conditions are expected along portions of the north coast of Honduras, where a Tropical Storm Warning has been issued. A Tropical Storm Watch is in effect for the remainder of the coast of Honduras, the Caribbean coast of Guatemala, and the southeastern Yucatan Peninsula of Mexico, where tropical storm conditions are possible. 3. Localized flash flooding is expected across portions of the eastern Yucatan Peninsula, Belize, and northern Honduras, including the Bay Islands, starting late Tuesday continuing through Thursday. 4. There is potential for a dangerous storm surge near where the core of Lisa crosses the coast of Belize. FORECAST POSITIONS AND MAX WINDS INIT 01/0300Z 15.6N 79.1W 40 KT 45 MPH 12H 01/1200Z 16.0N 81.3W 45 KT 50 MPH 24H 02/0000Z 16.4N 83.9W 55 KT 65 MPH 36H 02/1200Z 16.8N 86.3W 65 KT 75 MPH 48H 03/0000Z 16.9N 88.3W 65 KT 75 MPH...INLAND 60H 03/1200Z 16.8N 89.8W 40 KT 45 MPH...INLAND 72H 04/0000Z 16.8N 91.2W 25 KT 30 MPH...POST-TROP/REMNT LOW 96H 05/0000Z 17.0N 93.5W 20 KT 25 MPH...POST-TROP/REMNT LOW 120H 06/0000Z...DISSIPATED $$ Forecaster Cangialosi
  6. BULLETIN Tropical Storm Lisa Advisory Number 4 NWS National Hurricane Center Miami FL AL152022 1100 AM EDT Mon Oct 31 2022 ...DISTURBANCE BECOMES TROPICAL STORM LISA IN THE CENTRAL CARIBBEAN SEA... ...EXPECTED TO GRADUALLY STRENGTHEN OVER THE NEXT FEW DAYS... SUMMARY OF 1100 AM EDT...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...15.5N 77.3W ABOUT 175 MI...285 KM S OF KINGSTON JAMAICA ABOUT 365 MI...590 KM SE OF GRAND CAYMAN MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...1003 MB...29.62 INCHES ------------------------- Tropical Storm Lisa Discussion Number 4 NWS National Hurricane Center Miami FL AL152022 1100 AM EDT Mon Oct 31 2022 GOES-16 1-minute visible imagery indicates that the low-level circulation of the system has closed off again, although the system is still a bit elongated north-to-south. Westerly shear has caused the center to be exposed to the west and north of the primary convective banding features. NOAA Hurricane Hunter tail Doppler radar data also show that the low is tilted southeastward with height, a reflection of the current shear. Still, the plane had numerous SFMR values of around 35 kt, and dropsonde data showed the pressure has dropped to 1003 mb. These values are sufficient to call the system a tropical storm with an initial wind speed of 35 kt. After a dip southward overnight, Lisa is moving westward again at about 12 kt. The storm should move westward to west-northwestward for the next day or two under a mid-level ridge to the north. As the ridge intensifies in a few days, Lisa is likely to move westward, or possibly a little south-of-west, while it approaches Belize. Model guidance remains in very good agreement, and only a small southward adjustment was made to the previous forecast. Lisa should encounter more conducive atmospheric and oceanic conditions for the next few days, with increasing mid-level humidities and generally lower shear. The storm will likely still have some bouts with drier air infiltrating in the northwestern quadrant of the circulation, but the diminishing shear should lessen the impact of this factor. Thus slow intensification is shown for the next few days, consistent with the interpolated previous forecast. It should be noted that the new NHC forecast is on the high side of the guidance for this cycle, with a notable decrease of the forecast intensity in many of the models. The official forecast is lower than the previous one, owing to the model trend, but it is preferable to wait another cycle to make any larger changes after the model suite ingests the plentiful aircraft data for the 12 UTC suite. Key Messages: 1. Tropical storm conditions are possible on Jamaica today. 2. Interests along the coast of Central America, especially near Belize and the Yucatan Peninsula of Mexico, should monitor the progress of this system. Additional watches and warnings will likely be required by late today. FORECAST POSITIONS AND MAX WINDS INIT 31/1500Z 15.5N 77.3W 35 KT 40 MPH 12H 01/0000Z 15.8N 79.0W 40 KT 45 MPH 24H 01/1200Z 16.3N 81.4W 45 KT 50 MPH 36H 02/0000Z 16.8N 83.9W 50 KT 60 MPH 48H 02/1200Z 17.1N 86.3W 55 KT 65 MPH 60H 03/0000Z 17.1N 88.2W 65 KT 75 MPH 72H 03/1200Z 16.7N 90.0W 40 KT 45 MPH...INLAND 96H 04/1200Z...DISSIPATED
  7. BULLETIN Potential Tropical Cyclone Fifteen Advisory Number 2 NWS National Hurricane Center Miami FL AL152022 1100 PM EDT Sun Oct 30 2022 ...NOAA HURRICANE HUNTER AIRCRAFT REPORTS LITTLE CHANGE IN THE DISTURBANCE... SUMMARY OF 1100 PM EDT...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...15.8N 74.9W ABOUT 195 MI...315 KM SE OF KINGSTON JAMAICA ABOUT 480 MI...770 KM ESE OF GRAND CAYMAN MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...W OR 280 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...1005 MB...29.68 INCHES Potential Tropical Cyclone Fifteen Discussion Number 2 NWS National Hurricane Center Miami FL AL152022 1100 PM EDT Sun Oct 30 2022 Satellite imagery and data from a NOAA Hurricane Hunter aircraft indicate there has been little change in the structure of the disturbance this evening. Satellite imagery shows that the low-level center is apparent in satellite imagery between two areas of disorganized convection to the northwest of a loosely-curved convective band. The aircraft data shows that the circulation at 460 mb is located to the southeast of the surface center and is not well defined at that level. Dropsondes to the northeast of the center showed surface winds of 30 kt, and drops near the center suggest the central pressure is near 1005 mb. Based on these data, the initial intensity remains 35 kt. The estimated initial motion is a little to the left of the previous advisory, 280/10 kt. A general westward to west-northwestward motion is expected during the next 48 h or so due to the presence of a westward moving mid-level ridge north of the center. After that time, the ridge should build a little faster toward the west and southwest, resulting in a south of west motion as the system approaches Belize or the Yucatan Peninsula of Mexico just after 72 h. The forecast guidance has shifted southward through 60 h, and the new forecast track is nudged in that direction. However, the new track lies to the north of the various consensus models. It should be noted that the the forecast track could undergo some additional adjustments until the circulation center becomes better defined. A combination of the current disorganized structure, moderate west-northwesterly shear, and weakly convergent upper-level flow should limit intensification for the next 12-24 h. However, the system is still expected to become a tropical storm in about 12 h when the convection increases during the diurnal maximum. After 24 h, increased upper-level divergence, decreased shear, and better organization should allow a faster development rate, and the system is expected to steadily strengthen. The new intensity forecast follows the previous forecast in calling for the system to become a hurricane before landfall in Belize or the Yucatan Peninsula, with a forecast peak intensity of 70 kt being near the upper edge of the intensity guidance. No changes to the current watches are required at this time. A Tropical Storm Warning may be necessary for Jamaica Monday morning depending on the evolution of the track and the 34-kt wind radii. Key Messages: 1. Tropical storm conditions are possible within the Tropical Storm Watch areas beginning Monday for Jamaica and on Tuesday for Grand Cayman Island. 2. Interests along the coast of Central America, especially near Belize and the Yucatan Peninsula of Mexico, should monitor the progress of this system. Additional watches and warnings will likely be required early this week. FORECAST POSITIONS AND MAX WINDS INIT 31/0300Z 15.8N 74.9W 35 KT 40 MPH...POTENTIAL TROP CYCLONE 12H 31/1200Z 16.0N 76.4W 35 KT 40 MPH...TROPICAL CYCLONE 24H 01/0000Z 16.3N 78.4W 40 KT 45 MPH 36H 01/1200Z 16.7N 80.6W 45 KT 50 MPH 48H 02/0000Z 17.1N 83.1W 55 KT 65 MPH 60H 02/1200Z 17.3N 85.4W 65 KT 75 MPH 72H 03/0000Z 17.1N 87.4W 70 KT 80 MPH 96H 04/0000Z 16.0N 91.0W 30 KT 35 MPH...INLAND 120H 05/0000Z...DISSIPATED $$ Forecaster Beven
  8. From what I've read, the northern burbs of Atlanta are largely near or nearing peak already here in late October. I don't think it has occurred this early in many years. This of course is due to the chilly late Sep to mid Oct. Back in much of the 1980s, there were some years that peaked there this early. But in most years since, the peak has been in early to mid Nov.
  9. BULLETIN Potential Tropical Cyclone Fifteen Advisory Number 1 NWS National Hurricane Center Miami FL AL152022 500 PM EDT Sun Oct 30 2022 ...ADVISORIES INITIATED ON POTENTIAL TROPICAL CYCLONE FIFTEEN... ...TROPICAL STORM WATCHES ISSUED FOR JAMAICA AND GRAND CAYMAN ISLAND... SUMMARY OF 500 PM EDT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...15.7N 73.6W ABOUT 265 MI...425 KM SE OF KINGSTON JAMAICA ABOUT 560 MI...900 KM ESE OF GRAND CAYMAN MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...WNW OR 290 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...1005 MB...29.68 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of Jamaica has issued a Tropical Storm Watch for the island of Jamaica. The government of the Cayman Islands has issued a Tropical Storm Watch for Grand Cayman Island. -------------------------- Potential Tropical Cyclone Fifteen Discussion Number 1 NWS National Hurricane Center Miami FL AL152022 500 PM EDT Sun Oct 30 2022 This morning we were fortunate to have concurrent NOAA and Air Force Reserve Hurricane Hunter missions, which provided a wealth of flight-level, Tail Doppler Radar, and dropsonde data over the system in the central Caribbean Sea. The data indicated that a well-defined, while somewhat broad, circulation had formed with a minimum pressure of 1005 mb. A combination of SFMR winds and surface dropsonde data also suggested that the system had 35-kt winds in its northern semicircle. With that said, the satellite presentation of the system currently lacks sufficient convective organization to be considered a tropical cyclone. However, given the well-defined center and tropical-storm-force winds, there is significant risk for tropical storm conditions in the near future in portions of Jamaica and Grand Cayman Island. With the expectation that this system will likely become a tropical storm soon, advisories have been initiated on Potential Tropical Cyclone Fifteen. The estimated motion of the disturbance is off to the west-northwest at 290/9 kt. This general motion is forecast to continue for the next day or so, as an expansive mid-level ridge is currently centered north of the system and expected to move westward with the cyclone. Toward the end of the forecast period, the ridge may nose further westward as a deep-layer trough becomes established well to the the northeast, which could result in a south of due west motion when the system approaches the coast of Belize. Landfall is expected between the 72- and 96-hour forecast points. The initial NHC track forecast is roughly a blend of the latest GFS and ECMWF guidance, which is also quite close to the HCCA and TCVA consensus aids. Based on the current structure, it may take a bit longer for the convection to become sufficently organized to allow the formation of a tropical cyclone, but this is forecast to occur at some point tonight, likely during the typical diurnal maximum. After deep convection become better established, environmental conditions appear to be conducive for further intensification, especially in the 24-48 hour period when the vertical wind shear is expected to be lowest (5-15 kt) as the system traverses 29-30 C sea-surface temperatures. Mid-level relative humidity is quite low (55-60 percent), but given the relatively low shear, this may act to keep the system's structure small with a constricted radius of maximum winds. The initial intensity forecast after 24 hours closely follows the latest HCCA and ICON intensity guidance, making the system a Category 1 hurricane in 60-72 hours. The system should weaken quickly over land and is forecast to dissipate before day 5. Based on the latest forecast, the government of Jamaica has issued a Tropical Storm Watch for Jamaica, and the government in the Cayman Islands has issued a Tropical Storm Watch for Grand Cayman Island. Key Messages: 1. Tropical storm conditions are possible within the Tropical Storm Watch areas beginning Monday for Jamaica and on Tuesday for Grand Cayman Island. 2. Interests along the coast of Central America, especially near Belize, should monitor the progress of this system. Additional watches and warnings will likely be required early this week. FORECAST POSITIONS AND MAX WINDS INIT 30/2100Z 15.7N 73.6W 35 KT 40 MPH...POTENTIAL TROP CYCLONE 12H 31/0600Z 16.0N 74.9W 35 KT 40 MPH...TROPICAL CYCLONE 24H 31/1800Z 16.3N 76.6W 40 KT 45 MPH 36H 01/0600Z 16.7N 78.8W 50 KT 60 MPH 48H 01/1800Z 17.2N 81.3W 60 KT 70 MPH 60H 02/0600Z 17.5N 83.6W 65 KT 75 MPH 72H 02/1800Z 17.4N 85.7W 70 KT 80 MPH 96H 03/1800Z 16.4N 89.5W 35 KT 40 MPH...INLAND 120H 04/1800Z...DISSIPATED $$ Forecaster Papin/Cangialosi
  10. The first advisory on this will be issued at 5PM AST as PTC 15. It currently is still tilted due to shear.
  11. 8AM 8/30 TWO says better organized and could be a major flooding rainfall threat, which may be bad news for some areas and would imho make it thread worthy: 1. Central Caribbean: A broad area of low pressure over the central Caribbean Sea continues to produce disorganized showers and thunderstorms. However, overnight satellite wind data suggest the circulation is gradually becoming better defined. Environmental conditions are forecast to be conducive for additional development, and a tropical depression is likely to form in the next couple of days while the system moves west-northwestward at 10 to 15 mph over the central and northwestern Caribbean Sea. Interests in Jamaica should monitor the progress of this system. NOAA and Air Force Reserve Hurricane Hunter aircraft will be investigating the system this morning. Regardless of development, locally heavy rainfall is possible over portions of the Lesser Antilles, the Virgin Islands, Puerto Rico, Hispaniola, and Jamaica during the next couple of days. * Formation chance through 48 hours...high...70 percent. * Formation chance through 5 days...high...80 percent.
  12. I thought you were exaggerating for comic effect but by golly I think I counted 8, myself! I can trace two of them to the possible 11/3 SW Caribbean genesis, itself, (which I do think may need to be watched) with one of those becoming a cat 2 H in the Leewards.
  13. For the 3rd-4th day in a row, the 12Z model consensus (every model actually including ensembles) has a potential Invest 96-L with a new sfc low forming in the SW Caribbean on 11/3. Most of the models keep it weak though the Icon gets it a bit stronger further NW. The 12Z GFS as usual has the wildest solution with it having a H hitting Jamaica, Cuba, Bahamas, and Daytona Beach. 18Z GFS takes the weak low that forms in the SW Caribbean on 11/3 and has a similar solution to the 12Z except that it hits Bermuda instead of Daytona Beach for the final landfall shown on the run. Taking with a gigantic grain because it is the GFS. Regardless of what the GFS shows, all models are still showing a weak low forming on 11/3 in the SW Caribbean, which would probably need to be watched as that is the most climo favored location in the entire basin in early November. I think I'll withhold comment on the 0Z GFS for now.
  14. Meanwhile, the model consensus based on the latest runs of each model (12Z, 6Z, 0Z) continues to suggest a weak low in the SW Caribbean ~November 3rd. This is not Invest 95L. (Future 96L??) This includes the 12Z runs of the ICON, CMC, GFS, Euro, and UKMET. The GFS is another run that does a "wrong way Lenny" with it as it takes it ENE to near W PR. Take that with a huge grain, of course.
  15. Please start the 95L thread if you think it is worthy. I personally think that the 70% chance of TD+ within 5 days for this is too high considering mostly unimpressive model consensus and think it is more like 40% as of now: ZCZC MIATWOAT ALL TTAA00 KNHC DDHHMM Tropical Weather Outlook NWS National Hurricane Center Miami FL 200 PM EDT Fri Oct 28 2022 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: 1. Eastern Caribbean: A broad area of low pressure over the eastern Caribbean Sea continues to produce a large area of disorganized showers and thunderstorms extending from the Windward Islands west-northwestward for several hundred miles. Environmental conditions are forecast to be conducive for gradual development over the next few days, and a tropical depression is likely to form this weekend or early next week while the disturbance moves slowly westward or west-northwestward over the central Caribbean Sea. Regardless of development, locally heavy rainfall is possible over portions of the Lesser Antilles, the Virgin Islands, and Puerto Rico through this weekend. * Formation chance through 48 hours...low...30 percent. * Formation chance through 5 days...high...70 percent.
  16. That's an interesting point. However, also keep in mind that none of 1954, 1915, 1908, and 1892 had a preceding strong El Nino.
  17. After pretty much being on its own having had nearly a week's worth of runs showing almost all hurricanes at peak in the E or C Caribbean, the 12Z GFS has no more than a TD to possibly low end TS from this on the entire run! That's pretty bad imho though it was fortunately pretty predictable due to doing this kind of thing on its own at times in the past. And now this run could turn out to be too weak! Edit: The 12Z EPS retains the idea of a possible 2nd TC (if the initial Car mandarin low actually has TCG) in or near the SW Caribbean in early November. Edit: Regarding the "mandarined" low, the Happy Hour GFS more than likely is not even showing a TD with at most a weak TD for a short period. Too funny!
  18. Regarding your linked article: 1. I don't think that the current triple dip La Nina is all that notable from a climate perspective. Per both the NOAA ONI table that goes back to 1950 and Eric Webb's ENSO SSTA table that goes back earlier, there were these triple dipping cold ENSO periods: A) 1892-3, 93-4, 94-5 B)1908-9, 09-10, 10-1 C) 1915-6, 16-7, 17-8 D) ASO of 1954, OND of 55, JAS of 56 E) 1973-4, 74-5, 75-6 F) 1983-4, 84-5, 85-6 G) 1998-9, 1999-2000, 2000-1 H) 2020-1, 21-2, 22-3 So, other than the longer period between the triple dips of the 1910s and 1950s, these have occurred 7-22 years apart since the late 1800s. The current one started 22 years after the start of the prior one. So, I don't see it being that notable that we're now in a triple dip as it was kind of due. 2. The same article refers to a cooling trend between 1979 and 2020 in much of the E Pacific off of S.A. Well, 2020 was the start of the current triple dip La Niña. And 1979 was going into a weak El Niño. So, if this is merely based on the difference between 1979 and 2020, then obviously it was notably cooler in 2020 than in 1979 off of S.A. That isn't due to a longer term trend but rather due to a short term cooling in 2020 due to La Niña as the image below shows. What if the ending point had been during the super El Niño of 2015 instead of 2020? The trend from 1979 off of S.A. would have been warmer rather than cooler. https://www.webberweather.com/ensemble-oceanic-nino-index.html https://origin.cpc.ncep.noaa.gov/products/analysis_monitoring/ensostuff/ONI_v5.php
  19. In addition to the potential that this first TC forms in the central Caribbean in a few days, the model consensus is suggesting that a 2nd TC may form in or near the SW Caribbean during the first few days of November. That includes the 0Z UKMET and yesterday's 12Z UKMET in addition to other models like the Euro, ICON, and GFS. The EPS, GEFS, and GEPS also are suggesting this has a good chance to occur. So, as crazy as it sounds, don't be surprised if we get both Lisa and Martin form in the Caribbean next week.
  20. The 12Z Euro has a weak closed low form in the C Car, the first run doing that. Prior runs have had no more than a very weak low and that in the W Car. Let's see if this is the start of a trend on the Euro.
  21. 0Z GFS: no TCG until the C Car. Much more reasonable. Edit: But then it forms a 2nd one behind it in the C Car that goes east lol. I'm not counting this part as reasonable lmao.
  22. The 12Z Euro and UKMET continue with no TCG at all. However, they both have weak lows in the SW Car day 6+ that will need to be watched for potential TCG due to more favorable conditions, considering what the 12Z CMC and ICON as well as yesterday's 12Z JMA show, noting that climo favors that area over all others, La Nina climo, and recent decades of increased activity late in the season: Oct 21-31 geneses: (add two more to this in the W Car for 2016-21) Nov 1-10 geneses:
  23. For some reason, Tidbits doesn't have either the 0Z or 6Z GFS. But I later found them at Pivotal and Weathernerds. I have a lot of doubt that the GFS, ICON, and CMC are actually developing the same wave. What do others think? Based on what it has done many times in the recent past (~25 runs in a row in mid May in the W Car for example that turned out to be nothing), I still think the GFS is drunk with its E Car TCG into a H while still in the E Car. I'm also considering climo as well as the Euro and UKMET not having an E Car TCG. Looking closely at the 0Z UKMET maps, all it has is a very weak low (1012 mb) at the ABC Islands (12N, 69W) at hour 84 (a far different scenario vs the GFS) that then moves westward with no TCG into the far SW Car. It finally develops some in the far SW Car while still moving westward and ends up at 1007 mb at hour 168 near 11N, 82W (150 miles E of the Nicaragua/Costa Rica border). I'm still sticking with a C or W Car TCG, if there is any, by early to mid next week and expect no more than a weak low in the E Car preceding that possibility later this week that moves westward just N of SA.
  24. Sound familiar? Back in mid May, there were something like 25 GFS runs in a row with W Caribbean TCG that lead to modeled H landfalls in many cases while other models were mainly quiet. Then about a week after the first run with it, the GFS dropped it and never was heard from about this timeframe again. I think that's likely what's happening now with its E Car TCG. I suspect it will at some point throw in the towel on E Car TCG. Perhaps then it will change to a much more reasonable C or W Car TCG. Even the 0Z CMC has TCG in the C Car.
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