+x Tim Dawson - 9/2/2025 8:49:06 AMI used the word and, indicating that I believe it to be a combination of the two. A bank of fog, for instance, can easily have a straight-ish edge as it rolls along the sea or elsewhere. The resolution of the product is fairly coarse so what appears as a straight line (in pixels) would of course not be that straight in reality.The coverage of Flyable Conditions is most of Europe; if you zoom out you can see the edges. There is currently no such thing as "no data" areas inside that coverage.Please refer to the user manual if you want more information on the Flyable Conditions feature and how we recommend you use it.