NASA Crew-7 - L-2 Forecast

An upper level disturbance is sliding southwest across the state this morning as the surface high move off the coast of the northeastern US continues to push a boundary down the east coast. Today will bring an increase in the chance for showers as this boundary moves into North Florida late today, especially as east-northeast flow increases. There is more model support for this boundary stalling out closer to the Spaceport late Thursday, which would leave additional moisture and lift in the vicinity for Atlantic shower development heading into the primary launch window early Friday morning. This activity still looks to be in the form of low topped onshore moving showers as the air aloft remains fairly dry. This limits the threat for storms, making the Cumulus Cloud Rule the main weather concern with occasional elevations in the electric field with the few that can make it taller. The boundary washes out on Friday, with high pressure behind it weakening across the state. Without the boundary, weakening east-northeast flow and drier than normal conditions will continue to bring a small threat for Atlantic showers into the weekend, though lower than Friday morning. The primary weather concern for the backup windows early Saturday and Sunday mornings will remain the Cumulus Cloud Rule.