Tropical Storm Dolly finally formed yesterday out of the disturbance we've been following across the tropical Atlantic. It's speeding along at almost 25 mph, heading for an increasingly hostile atmospheric environment as it approaches the northeastern Caribbean islands tomorrow. The system is surrounded by Saharan dust and dry air cover, which is choking off Dolly's moisture. In addition, the mid- to upper-level winds blowing across the system have not allowed the thunderst