🌀 Alpha · Tropical Storm · 70 mph
Subtropical Storm Alpha was the first subtropical cyclone ever observed to make landfall in mainland Portugal. The twenty-second tropical or subtropical cyclone and twenty-first named storm of the extremely active and record-breaking 2020 Atlantic hurricane season, Alpha originated from a large non-tropical low that was first monitored by the National Hurricane Center on 15 September. Initially not anticipated to transition into a tropical cyclone, the low gradually tracked south-southeastward for several days with little development. By early on 17 September, the low had separated from its frontal features and exhibited sufficient organization to be classified as a subtropical cyclone, as it approached the Iberian Peninsula, becoming a subtropical storm around that time. Alpha then made landfall just south of Figueira da Foz, Portugal during the evening of 18 September, then rapidly weakened as it moved over the mountainous terrain of Northeastern Portugal. The system degenerated into a remnant low on 19 September, when it was last noted. Tropical Storm: peak winds of 70 mph (60 knots), lowest pressure 992 mb. September 14 – September 19, 2020. Landfall: September 18 at 50 mph, 40.0°N 8.9°W. Accumulated cyclone energy: 0.0. Wiki link Track: NOAA National Hurricane Center, HURDAT2 best track AL242020 (public domain).