Hi ! All 
i have Fsx, and the addon Acceleration ! If you want to add a new metar for the meteo, without to create a new station, then it's possible. The syntaxe is not easy for to understand (look the sdk). But, look my syntaxe with the FSXME, by custom Action. I start at LFML (Marseille/Provence). You must to have "NIL" !!!! the end of the syntaxe is the temperature at the altitude. Look well the extensions with "&". You can to test ths syntaxe in your mission.
SimVar METAR NIL GLOB " 31808KT&D0LG 31107KT&A1502LG 31803KT&A2569NG 0402&B0&D379 7CB009&CB001FLMR000L 4CI109&CI001FNMN000T 14/12 Q1010 @@@ 50 12 311 7 | 85 08 318 3 | 120 01 318 3 | 140 -03 318 3 | 180 -05 318 3 | 220 -015 318 3 |"
Bests regards
sorry for my language, i am french
i have Fsx, and the addon Acceleration ! If you want to add a new metar for the meteo, without to create a new station, then it's possible. The syntaxe is not easy for to understand (look the sdk). But, look my syntaxe with the FSXME, by custom Action. I start at LFML (Marseille/Provence). You must to have "NIL" !!!! the end of the syntaxe is the temperature at the altitude. Look well the extensions with "&". You can to test ths syntaxe in your mission.
SimVar METAR NIL GLOB " 31808KT&D0LG 31107KT&A1502LG 31803KT&A2569NG 0402&B0&D379 7CB009&CB001FLMR000L 4CI109&CI001FNMN000T 14/12 Q1010 @@@ 50 12 311 7 | 85 08 318 3 | 120 01 318 3 | 140 -03 318 3 | 180 -05 318 3 | 220 -015 318 3 |"
Bests regards
sorry for my language, i am french



