Originally Posted by
FE Hoppy
Ive had standing waves in the middle of the south atlantic coming off the Andes so 10 minutes is not at all "too Long".
I agree, I've had them starting a good 100 miles EAST of DEN and continue until well past GJT, so a good 20 min. One of them even threw us right in the barber pole, certainly enough to make you pay attention.