GSAT-20 - L-1 Day

High pressure will be just off the coast in the Atlantic by the launch window, bringing mostly clear skies and light onshore winds. Abundant dry air will exist above the very lowest levels, so there is very little concern for any violations due to clouds. The high will only move slightly farther to the east by Tuesday, so little change in forecast conditions is expected for the backup window ahead of the next approaching front midweek.