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Probable GOLF Instruction
Lower scores by making better choices on the course. New golf technology; more distance.
Applied physics & math to improve golf. Free golf tips based on the latest scientific research.

Golf Wind -- How does the wind affect the golf ball?

The speed of the wind varies with height above the ground. A golfer is able to measure the speed of the wind at ground level. The golf ball moves from the ground at a higher points where the wind speed is greater. The higher the ball moves, the greater the wind speed. The physics of fluid motion models how the speed changes with height. It is well understood. Unfortunately, the wind changes (gusts) and thus adds uncertainty to the golfer's measurement of wind speed and direction.

Above is a graph showing the path of 3 different drives. The shortest represents hitting into a 5 mph wind (about 240 yds). The longest represents hitting with a 5 mph wind (about 260 yds). The middle length drive is with no wind (about 255 yds). A 5 mph wind is very minimal, thus the effect is low, yet significant. Note as well the different trajectories created by the wind.

Wind Caddy App

From the team that brought you the top selling app Wind Meter, GoingApps is happy to introduce Wind Caddy. Wind Caddy helps the golfer always select the right club for the conditions. Wind Caddy works by collecting 4 inputs and recommending a club and correct Aim for the hole based on a proprietary algorithm developed by professional Golf Caddy and avid golfer Ken Tannar of www.probablegolfinstruction.com.

Wind Caddy will advise you on aim, distance and club so that you can play the wind successfully. It takes the guess work out of club selection.

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Below is a graph showing the path of 3 different drives, similar to the one above, except the wind speed is 20 mph.

Note that into the wind the drive flies 200 yds, with no wind it flies 250 yds and with the wind, it flies 275 yds. The effect of the wind is much more significant when hitting into it than when hitting with it. Hitting into the wind actually causes the ball to balloon higher into the air.

Of course the effect of the wind depends on your ball trajectory. Players that hit the ball higher have their shots more greatly effected. That's why better players tend to hit knock-down shots when playing in the wind. As well, how far a player hits his/her various clubs will have an effect of how many more or less yards the wind will provide.

Even the best players in the world have a tough time with the wind. Wind speed is hard to read and wind gusting makes it tough to predict the effect on the golf ball, and to commit to the shot. The average score in the first 4 rounds of the 2009 Bob Hope Classic was 67.0 (there was very little wind). The wind picked up in the 5th and final round and the average score was 70.4, which is 3.4 shots higher. The wind really makes it difficult for all of us, even the pros.

I provide two services to golfers who are interested in determining how the wind will affect their shots. If you'd like to purchase these services, click the Order Services option.

1. You can immediately a copy "Reading & Playing the Wind" by following the order link below. I'll explain how you can easily measure the wind's speed (without using any kind of electronic device) and how much each 1 yard per second of wind will affect your various club ranges. The only guessing for you will be determining if the wind's speed is in fact constant.

I've also recently updated the report to include how to compensate for crosswinds and partial crosswinds. It'll take much of the guesswork out of picking the right club for the shot.

Remember, it's highly unlikely you'll ever hit a good shot if you are doubting what club to hit. Using my wind tips, you'll be able to quantify the number of yards the wind will likely affect your shot. As your confidence grows with you being able to predict the effect, the more committed you will become to your shots, the better you'll hit them, and the lower you will score.

The cost of the report is only $15.99. ORDER Here.

Unless the wind is blowing really hard, you don't need to change your swing; you just need to change your club. You need to choose the right club and have confidence in hitting it. My tips will make this a reality.

2. You can provide me with yardages for each club in your bag. I'll input your values into a program I have written, and send you a template which will outline how different speed winds will change the real yardages for each club. The service is only $15.99. You can order it here.

See and order all or my products at my golf product order page.

The Science of Meteorology online Learn some basic meteorology from StuffInTheAir.com

Wind & the Golf Ball

Every golfer knows that if you are playing a shot into the wind, you must hit more club. If you're playing a shot with the wind, you must hit less club. Even professionals have a difficult time playing in the wind. The average score in a tournament is always higher when it is windy.

The amount of club to hit depends on the speed and direction of the wind as well as the spin and trajectory of the ball. The higher your ball flight, the more your shot will be affected. The more spin you put on the ball, the higher will be its trajectory.

A golfer needs to measure the speed of the wind and determine how much that speed will affect his/her shot. Since the trajectory of a golf ball is well understood, one can model it and determine the effects of the wind. I have determined how much the wind affects the distance a shot travels and I have developed a very simple procedure for determining the speed of the wind.

Order the document in which I'll teach you the procedure here for only $15.99.