@dougmac2 MS Edge is not very good Internet browser, and it is not supported by Windy. Consider please using Chrome/Firefox/Safari the latest version.

@DougMac2 It is because you put negative speed (-2 kt) for your airplane. [image: 1593416542691-1485a4fe-2f07-46fd-95ea-8748ade8b5d5-%CE%B5%CE%B9%CE%BA%CF%8C%CE%BD%CE%B1.png] Airplanes do not fly backwards (exept on Cobra maneuver! :) ).

@DougMac2 The weather visualisation along a straight line is available with the Distance & planning feature, in the left Menu of the desktop version, not in the app. [image: 1584434935314-capture-d-e-cran-2020-03-17-a-09.46.02.png] This tool is also called Route planner as explained here: https://community.windy.com/topic/9596/how-to-use-a-route-planner More simply: Activate Distance & planning Place 2 points on the map Select your distance units Choose your vehicle (Car, or other) Select North up [image: 1584436615416-capture-d-e-cran-2020-03-17-a-10.07.50.png]