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air mass seperation

air mass seperation

Near Chelan, Washington

I think there is an air mass changed on the eastern slope of the Washington's Cascades created a distinctive cloud formation. It was very strong wind at all altitude on friday...over 110 knots at 30,000 feet. We leveled out at FL370 and ended up FL390 (Flight Level 39000) for smooth ride

Nikon D300
1/640s f/10.0 at 18.0mm full exif

other sizes: small medium original
Wim Ensie06-Dec-2009 19:38
Beautiful and interesting picture