{"id": "1220966479379496962", "title": "Tropical Cyclone Discussion", "adv_date": "2026-10-22T15:00:00Z", "msg": "980\nWTNT45 KNHC 221436\nTCDAT5\n \nSubtropical Storm Josephine Discussion Number   4\nNWS National Hurricane Center Miami FL       AL102026\n1100 AM AST Thu Oct 22 2026\n\nSatellite imagery this morning indicates that an area of convection \nhas developed to the north of the center of Josephine, although the \nconvective curvature is less than it was last night.  Just- received \nscatterometer data suggests the convective cluster is near or just \nwest of a developing frontal boundary. Satellite intensity estimates \nhave changed little since the previous advisory, and the \nscatterometer shows winds near 50 kt west of the center. The initial \nintensity remains 55 kt based on a subtropical cyclone intensity \nestimate from TAFB and the possibility of the scatterometer \nundersampling the maximum wind.\n\nThe initial motion is northeastward or 040/10 kt.  GOES RGB airmass \nimagery shows a mid- to upper-level trough extending from eastern \nCanada southwestward into the northeastern US, and Josephine should \naccelerate northeastward during the next 12-24 h as this trough \namplifies and approaches the cyclone. After 24 h or so, Josephine \nshould turn more eastward as it becomes embedded in the mid- \nlatitude westerlies. On the forecast track, the center of Josephine \nwill move away from the New England states today and pass south of \nNova Scotia and Newfoundland tonight and Saturday. The guidance is \nagain tightly clustered, and the new forecast track is similar to \nthe previous forecast.\n\nThe interaction between Josephine and the aforementioned trough \nshould cause the cyclone to develop fronts and become extratropical \nduring the next 12 h, and the scatterometer data suggests this \nprocess is already underway. However, intensification is expected \nduring this transition and Josephine will become a hurricane-force \nextratropical low later tonight and on Friday. The dynamical models \nare in good agreement that the cyclone should steadily weaken after \n24 h, and they forecast Josephine to dissipate between 72 and 96 h \nas it is absorbed by a new low pressure area developing to its \nnortheast. The new intensity forecast is based mainly on the global \nphysical models and it has only minor adjustments from the last \nforecast.  The wind radii forecasts have also been revised based on \nthe global model forecasts.\n \nSince the coastal wind hazards associated with this system have been\ncovered for the last several days through non-tropical products\nissued by local National Weather Service offices, those products\nwill remain in effect until the threat diminishes and Josephine\nmoves farther away from the U.S. coast over the next day or so.\n \n \nFORECAST POSITIONS AND MAX WINDS\n \nINIT  22/1500Z 39.2N  67.3W   55 KT  65 MPH\n 12H  23/0000Z 40.5N  64.6W   65 KT  75 MPH...POST-TROP/EXTRATROP\n 24H  23/1200Z 42.3N  60.2W   65 KT  75 MPH...POST-TROP/EXTRATROP\n 36H  24/0000Z 43.4N  56.9W   60 KT  70 MPH...POST-TROP/EXTRATROP\n 48H  24/1200Z 43.7N  54.3W   55 KT  65 MPH...POST-TROP/EXTRATROP\n 60H  25/0000Z 43.9N  50.4W   50 KT  60 MPH...POST-TROP/EXTRATROP\n 72H  25/1200Z 43.6N  45.2W   45 KT  50 MPH...POST-TROP/EXTRATROP\n 96H  26/1200Z...DISSIPATED\n \n"}