I’m afraid the hopes for a Christmas celebration in port were dashed away by a weather cell that disturbed the Trade Winds.
This Low pressure cell squeezed between the Central Atlantic High and the High off the Atlantic coast is leaving a wind less region as it moves away to the NE.
David, crew and Musetta have been sailing in what is known as "The prevailing Trade Winds".These winds out of the East blowing to the west generally between the 30th and 10th degrees of Latitude are said to be the result of global air circulation called "The Ferrel cell", theorized by William Ferrel (1817–1891). These winds, unlike those of Hadley Cells or Polar Cells are weak due to a lack of strong heat or sinking energy source. These weaker winds blow for days yet can be disrupted by moving cold fronts like the Low pressure near Musetta.
To seek a breeze, Musetta must venture further south extending their course a bit. Or if resources permit utilize their iron genny.