Features December 2010 Issue
Hail in Clear Air
The 25-mile rule for thunderstorms is far from perfect, but as long as itís smooth and youíre in clear air, how bad could it be?
Our flight from Potomac Airfield in Friendly, Md.. to Dublin, Va., (to pick up a new puppy) would take about an hour and a quarter, despite steady headwinds paralleling the Blue Ridge mountains. The only minor wrinkle came from two small cells approximately 10 miles north of our destination. The cells were staggered, traveling west to east across our route at 27 knots, with tops at 43,000 feet and 28,000 feet, respectively.