Not bad...too small though, for me.....Here is a link to WindyTV, which sounds stupid, but is actually a good tool for people like myself. (amateur) I set up wind field in this link for 2000 ft, but you can pretty much go from sea level to 10 miles up,using aircraft data.
User controls are to the right. Triple dot panel opens up layering options. Site is fun to use and pull back for large view of various regions of the world and large scale systems. It "appears" accurate,but I really have no idea....seems to match local conditions though.