you're right, the data I posted (and the man page I wrote) refers to the standard output of the AAG Solo weather station, while on the other hand, Ekos needs the parameters you listed.
The driver is quite flexible though: you can feed in the Ekos parameters any key/value coming from any weather station. For example you can feed 'rain' into 'temperature' (just doesn't make sense).
My suggestion was to put at first numeric value only: no 'forecast= Stormy, much rain' as it could break the parser. 

A further example of this 'flexibility': my weather station doesn't provide forecast values, so I feed in the 'forecast' (ekos side) the 'safe' (0|1) key/value from my weather station and set thresholds accordingly. Thus when the weather is unsafe it triggers obs shutdown.  

I do not know which among all parameters the 'Weather' (in the weather tab) is linked to. It could be 'forecast'.
 

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