6:15:16 AM And now the clouds begin. They will continue halfway across the country (you'll want to click through quickly). Can I find a weather map or satellite image for this day and time? I'm sure GOES is archived somewhere, but I'm not online right now, so I'm not sure where. The clouds were remarkably high (usually there are no clouds up in the lower stratosphere where planes fly). But there wasn't much turbulence because the atmosphere is relatively stable in the stratosphere because of the temperature profile.