I also set up alerts and get several wind alerts each day with no value. Wind speed is set for 50MPH. I guess I need to contact customer no support.
I have the same problem. It sends me high wind warnings 4-5 times a day when the wind speed is dead calm to maybe 5 MPH. I wrote LCX support and got a "we made some changes a week or two ago to fix that" reply. That is when I started using Alerts. I wrote them back and said it is still broken and have not had a reply.
I had to shut the wind alert off, since it was driving me nuts with SMS texts to my smartphone.
This sux, as high winds in my neighborhood means there is a 48" tree trunk though your living room ceiling in the immediate future... Or at the very least a week long power outage from trees falling across power lines.