PROVIDENCE, R.I. — A wet and blustery storm along the East Coast made driving hazardous and tangled up hundreds of flights Wednesday but didn't cause the all-out gridlock many Thanksgiving travelers had feared. Many travelers marveled at how orderly and anxiety-free the airports were during what is typically one of the busiest days of the year. One big question lingered in New York: Will high winds ground Snoopy and the other giant cartoon-character balloons at the Macy's parade on Thanksgiving Day?