I live in Queenstown, New Zealand. We have a lake, one branch south of where I live runs North South between two mountain ranges. We are inland, even so, we experience from time-to-time strong southerly winds. This morning as you will see from the enclosed screen shots, there was no southerly gradient or strong winds around Queenstown. However, there was a strong southerly wind that started not long before the screen shots were taken. I did not expect the strong wind when I left for my morning walk. I used Windy.com to see if I could see a reason, and yes, I saw it. A shallow low to the NW and a weak ridge to the SE (see screenshots). I would have been amazed if Windy.com had picked up the local effect (strong southerly). Had I not been a strong weather enthusiast for nearly my whole life, I might of concluded that Windy.com was not working very well and this might be a conclusion some people arrive at for their places.