Here's a link to the AMS thread. I hope I don't get roasted too badly whistle

http://www.whitneyzone.com/wz/ubbthreads.php/topics/36642#Post36642



Quote:
Acute mountain sickness is caused by reduced air pressure and lower oxygen levels at high altitudes.

source: http://www.nlm.nih.gov/medlineplus/ency/article/000133.htm
It seems logical (to me anyway) that a storm moving in would increase the likelihood of AMS.