That is one of the biggest myths that weight lifting stunts growth.
The only way to stunt growth when you lift is if you actually drop the weight on top of yourself and damage the growth plate.
If you use correct form and technique there is no harm at all, especially for a 16 year old.
The amount of force impacting the spine generated from landing after a jump is far greater than the force generated from a max effort squat.
Lifting while young will actually benefit growth, it forces the bones to adapt to the load get thicker store more calcium etc. May aid growth and goes a long way to helping ward off bone disorders late in life
"Reasons why youth should avoid maximal or near-maximal lifts
Growth plates are the areas on bones that affect how tall people grow. Doing maximal and near-maximal lifts can cause damage to young people's growth plates. Children have a higher risk of growth plate injury than adults."
Dreger, RW. Strength training considerations for youth. Fitness Informer Winter 2005;10-12.
"Until they reach physical and skeletal maturity, preadolescents and adolescents should avoid power lifting, body building, and maximal lifts."
April 11, 2008 — The American Academy of Pediatrics (AAP)