Artemis I - L-4 Forecast

As Hurricane Fiona races northward, a trailing band of convergence between Fiona and an upper-level trough settles southward into Florida today. This ‘back-door front’ will push through the Space Coast late this afternoon, producing some isolated showers and bringing gusty northeasterly winds. The boundary should continue south of the Spaceport Saturday as high pressure builds in, allowing winds to diminish. On Sunday, the boundary will push back northward ahead of a likely strengthening tropical system in the western Caribbean, gradually shifting shower activity closer to the Spaceport. The weather begins to further deteriorate Monday into Tuesday, as a possible hurricane shifts into the northwest Caribbean Sea. The official forecast from the National Hurricane Center tracks the possible hurricane over western Cuba early Tuesday, with the storm entering the eastern gulf near the Florida Keys mid-day Tuesday. Deep tropical moisture will spill across the Spaceport Tuesday, with widespread cloud cover and scattered showers likely during the launch window. As a result, our primary concerns will be the Cumulus Cloud Rule, Surface Electric Fields Rule, and the Flight Through Precipitation constraint.