I’ve just included another parameter for you to configure your Metar Alerts: Crosswind.
The crosswind considered at the computation is that at the runway with least crosswind, if there is more than one runway.
You can see how to configure this new alert parameter in the original Metar Alerts post.
I really hope you enjoy getting an email whenever the crosswind at our favorite airport goes above your personal limit. Let me know how you use it!