That's probably something we can try.
The thing is that different model report different things.
I think that EC has all of model elevation, actual elevation and sfc temp while GFS only has actual? elevation.
I have chosen to use the model elevation when available because what's below probably do not make a lot of sense ?
There is a discrepancy between the levels available with the dataLoader and on the site. 1000h is available with the dataLoader, which I took the liberty to represent as 100m on Windy UI (perhaps better to just leave it out). 250h also not available in dataLoader, as @vicb said earlier.
Hi Peter. I am working on a flight planner, that you might find useful. The plugin calculates ground speed, from your IAS and Wind speed at your chosen alt, and determines the corrected ETE.
Can I ask: What is your airspeed ? (74kph). What are your waypoints?
Hi. tested it now and works.
Wait for plugin to load, then close left pane.
Right click screen (or longpress) for context menu.
In left pane a list of airspaces should appear.
Click to show country airspace.
You can open a number of countries, but too many will slow down plugin.
I use the sfc temp +3 degree for now as an approx - probably too much in the morning or when the cloud cover is important.
The surface temperature reported by the model does not seem to work better (I may want to give it an another try later).
Does it answer your question or is the question more about the temperature gradient ?