LIVE satellite images and tracking maps of Subtropical Storm Alpha 2020. Current wind speed 45mph. Max 50mph.
Radar data from Portugal indicated that Alpha made landfall at about 18:30 UTC with a fairly impressive spiral band signature. It is estimated that the winds were 45 knots at landfall, and a sustained 10-minute wind of 39 knots was recorded at Sao Pedro de Noel. The minimum central pressure is analyzed at 996 mb at landfall due to a 999 mb value at Monte Real with a 31-knots sustained wind. Since these data were recorded, the radar presentation has deteriorated, and satellite imagery suggests the small cyclone could be de-coupling from its mid-level center. The winds are assumed to have come down, with a current estimate of 40 knots. The small cyclone should continue to move northeastward at about 15 knots for the next 12-24 hours before dissipating over northern Spain or the Bay of Biscay. No significant changes are required to the forecast for track or intensity.
Additional information on the hazards from this system can be found in products from the Portuguese Institute for Sea and Atmosphere at https://www.ipma.pt.
Information provided by NHC.