(Insert number here) Club Wind?

[Tifosinumerouno]

I am playing in a scramble later today, and it's supposed to be fairly windy. Sustained winds of 16-18 mph. My question is: How does one determine how much extra club to take in the wind? I just sorta wing it most of the time, but if there were a more scientific way to make that sort of decision. For example, it someone had created a chart, it could look like this: a 7mph wind is 1 club, 12 mph is 2 clubs, 18 mph is 3, etc. Of course, I'm speaking of hitting into the wind, but hitting with the wind could be helpful, as well.

I found this app http://itunes.apple.com/app/wind-caddy/id378310125?mt=8 while searching earlier, and didn't know if anyone had used it or had any success. Thanks for any input or advice!

[Harmonious]

I would guess that the app is illegal in tournament play, just like GPS units that measure anything more than distances.

Figure 1 club for every 8 mph or so, going into the wind.  A little less, going with the wind.  But since you rarely have a direct wind, it's all about feel.