CFT - L-1 Day

A large area of high pressure, currently centered near the North Carolina coast, will move eastward and be well offshore by the launch window. For Sunday, expect windspeeds to decrease a few knots and low-level cloudiness to increase slightly as compared to Saturday. Dry mid-levels and a moderately strong inversion should prevent significant vertical cloud development, but a few cumulus clouds may pose a flight through concern. By the backup day, ridging over the spaceport should keep winds light and cloud cover low. The sea breeze may trigger an isolated shower or thunderstorm around the launch window, but a relatively dry atmosphere should limit the threat. Most convective development appears likely to occur after the window and inland of the spaceport. For the backup day, the weather risk remains low with the Cumulus Cloud Rule being the primary concern.