well if it's coming in 3's - I've been at 3 open water tris this year - 2 as an official, one as a competitor (Windsor this Sunday)
all 3 have turned into duathlons - 1st was water was too cold; 2nd was sea was too rough; and now Windsor have pulled the swim due to too much water (flow is too strong and lots of debris)
so you lot should be fine at Outlaw!