Goboeing From United States of America, joined Jun 2000, 2801 posts, RR: 14
Reply 1, posted (11 years 4 months 1 week 2 days 2 hours ago) and read 2523 times:
SWAP actually stands for Severe Weather Avoidance Plan. If a line of storms is rendering several parallel airways useless, departures at an airport are stopped in that direction and this is an example of SWAP in action. Better to keep the planes waiting on the ground then having separation problems in the air and holding patterns everywhere.