Originally Posted by SaturnV
The meteorology is dynamic, and I don't believe I've seen a mapping of the atmospheric conditions existing at the time that LH and IB were on the track post ORARO.
You have it here below for a 45 minutes window.
As we can see, the system was pretty similar for LH, AF447 and IB.
Now, I could also take the liberty to place a 55000 feet CB for any of those flights.
The meteorology is dynamic and that's why a deviation 10 miles to the left can be only 3 miles 20 minutes later or 30 miles to the right another further 12 minutes.