The folks at Hazon found this cool aerial photo of the dust storm that temporarily suspended the Hazon-Arava Israel ride on its last day.
The photos are taken from an airplane at 8000 feet, around Beer Sheva, about 90 miles north of where we were riding.
The storm itself came from Sinai and covered the entire Negev. The height of the sand-wall was about 4000 feet, and moved at 38 miles-per-hour.
I can't testify that the winds where we were reached that speed, but I can say it was the toughest headwind I ever tried to ride into!