Possible Clues:

• A good thing, only when healthy
• Lucky it being nothing more than a grand
• Less than a storm at sea? That's lucky
• Fortunate, a short time before, also
• Fortunate very recently too
• Not too heavy a sea? That's fortunate
• Fair since spring, which is fortunate
• A good thing to get from fair: a balloon
• The sea seems to be quite calm, fortunately
• Nothing more than a dandy? That's a relief!