Artemis I - L-3 Days

An unsettled weather pattern will continue across Central Florida through Saturday as a weak trough to the north keeps predominant steering flow out of the south-southwest. This will favor stormy afternoons and evenings as the sea breeze collision favors the east coast. As usual, showers and storms will decrease overnight. On Sunday, a pattern shift back to south-southeast flow is expected, which should decrease the coverage of the showers and thunderstorms along the Space Coast. This flow regime will remain in place for the opening of the initial launch window Monday morning. While the overall lightning threat seems low, this onshore flow regime will promote scattered showers across the Atlantic waters through the launch window. As a result, the primary weather concerns for a Monday morning attempt will be the Cumulus Cloud Rule, Surface Electric Fields Rule, and the Flight Through Precipitation constraint.