Hi!
Mine is working perfectly. Have you tried to test with a message by clicking in the test tab?
Here is a picture of my setting. It is in french for part of it but it indicate that if the wind is superior to 50 km/hr do send a message.
I erased all other lines except the ones below since I only want the wind advisory:
WeatherCat Rule 'N$' triggered at t$.
Windspeed: W$
Also make sure that in pref tab, e-mail tab, you did input the right info. Again, there are tabs to test your info.
Hope this can help.
Cheers.