It's always tough creating a good description when a player wants to use magic sight and there isn't anything to see. I don't like to have to tell them "nothing odd about the winds" after they go through the effort of a making a dice pool and rolling.
Looking for flavor on describing the winds, I opened up my Realms of Sorcery book from the previous edition. On page 35 is a diagram with the 8 winds. I printed this out to keep on the table for when a wizard uses magical sight. I copied this page, and use it thusly:
The diagram is tidily broken up into a circular diagram with 3 "stages" deep into each wind. By default, a token is placed on the middle level of each spoke. If a wind is deficient in an area, I move the token inwards. If the wind is pervasive in an area, I move the token outwards. If the wind is absent, the token is removed. This gave the wizard a very accurate visual that I could supplement with descriptions.
Because the winds of Azyr were pervasive, that token was placed in the outside row. Because the players were in an urban environment, I opted to pull the Ghur and Gyran winds in towards the center.
It is a tool I will definitely use again. I imagine arbitrarily shifting some winds in or out creates some great opportunities for the players to investigate -- whether it helps the task at hand or serves to segue way into a red herring or side quest, It also keeps the names of all of the winds visual on the board at all times to help immersion -- but can be covered up by relevant material until the caster actively turns on his sight.
Just thought I'd share. I'm excited about how this tool turned out.