Zaragoza looks unusable due to clouds and a chance of storms...
Well, Apparently the system in the Caribbean has gained a closed Circulation now from Surface reports, and winds, and convection, but close to land. Its just a sign even a Day before a Space Shuttle Launch, a system can form. Watch the tropics closely this year.
98.36% chance of favorable weather at KSC for launch... Sunday looks fine now too - stormy weather not starting until Monday.