I had a colony swarm 3 times (that I know of) last summer, but not in one day. Usually swarms are a day or two apart, as virgins emerge.
Those look like good-sized swarms in your pics. Maybe 5 to 6 lbs (15-to-20 thousand bees).
Get yourself some swarm traps! Give your bees a bit of time for the virgin queen to mate, return, and start laying eggs. Did you see many swarm cells in your hive?