{"id": "1220828936421474306", "title": "Tropical Cyclone Discussion", "adv_date": "2026-10-22T03:00:00Z", "msg": "219\nWTNT45 KNHC 220256\nTCDAT5\n \nSubtropical Storm Josephine Discussion Number   2\nNWS National Hurricane Center Miami FL       AL102026\n1100 PM AST Wed Oct 21 2026\n \nConvection associated with Josephine has waned this evening. The \nlatest satellite images show shallow to moderate convection in bands \nover the northern and western portions of the circulation. Despite \nits degraded satellite structure, partial scatterometer data show \nJosephine is still a powerful storm with a large radius of maximum \nwind and an asymmetric wind field. A band of 45-50 kt winds wraps \naround the northwest side of the system. Since the entire wind field \nwas not sampled, the initial intensity is held at a possibly \ngenerous 55 kt for this advisory.\n \nRecent satellite fixes indicate Josephine is now moving slowly\nnorth-northeastward (015/5 kt). The storm is expected to accelerate\nto the northeast and east-northeast tomorrow as an upper-level\ntrough amplifies over the Canadian Maritimes and the northeastern\nUnited States. Then, the low should become caught in mid-latitude\nwesterlies and move eastward on Friday and into the weekend, with\nthe center passing to the south of Newfoundland late Friday and\nFriday night. The track model guidance remains tightly clustered,\nand the NHC forecast is very similar to the previous one, generally\nfalling between the corrected consensus (HCCA) and a simple average\nof the GFS/ECMWF models (GFEX).\n \nJosephine is unlikely to remain subtropical for long since the storm\nwill encounter much cooler waters and stronger shear over the next\n12-24 hours. However, the global models favor some near-term\nstrengthening driven mostly by baroclinic processes and positive\ninteraction with the approaching trough. This forecast shows\nJosephine becoming a hurricane-force, extratropical cyclone in 24 h,\nthough it could lose subtropical characteristics even sooner.\nGradual weakening is predicted beginning on Friday, and the updated\nforecast shows Josephine becoming absorbed by 96 h within a larger,\nextratropical low over the North Atlantic. Given the subtropical\nnature of this storm, the NHC intensity forecast continues to favor\na blend of the GFS and ECMWF models.\n \nSince the coastal wind hazards with this system have been covered\nfor the last several days through non-tropical products issued by\nlocal National Weather Service offices, these products will remain\nin effect until the threat diminishes and the system moves farther\naway from the U.S. coast.\n \n \nFORECAST POSITIONS AND MAX WINDS\n \nINIT  22/0300Z 37.7N  69.4W   55 KT  65 MPH...SUBTROPICAL\n 12H  22/1200Z 38.8N  67.9W   60 KT  70 MPH...SUBTROPICAL\n 24H  23/0000Z 40.3N  64.4W   65 KT  75 MPH...POST-TROP/EXTRATROP\n 36H  23/1200Z 42.2N  59.6W   65 KT  75 MPH...POST-TROP/EXTRATROP\n 48H  24/0000Z 43.5N  55.7W   55 KT  65 MPH...POST-TROP/EXTRATROP\n 60H  24/1200Z 44.1N  52.8W   50 KT  60 MPH...POST-TROP/EXTRATROP\n 72H  25/0000Z 44.1N  48.1W   45 KT  50 MPH...POST-TROP/EXTRATROP\n 96H  26/0000Z...DISSIPATED\n \n"}