Closed mgoberfield closed 4 years ago
I agree that making directionOfMotion nil and speedOfMotion zero for STNR phenomenon in airmet-A6-1a-TS.xml is not as intuitive as leaving them out as the latter is also what the TAC template in Annex 3 is telling. So we may want to put a few words in the guidance and also amend the example.
Please see #187
From Annex 3![stnry](https://user-images.githubusercontent.com/7852621/64716325-2e610480-d490-11e9-90e8-a0148a092443.png)
Currently, AIRMET/SIGMET direction is nillable. Direction and speed are both optional. However, this is inconsistent with how stationary Tropical Cyclones are represented in TCA![tc](https://user-images.githubusercontent.com/7852621/64717485-6d905500-d492-11e9-8fd6-a1333a96c4f7.png)