Volunteer reported: It extended the length of my 100+ foot beach and my neighbor's to the south, while I did not investigate further a neighbor to the north reported the lake looked green. It extended a good 15' or more offshore, tangled up in massive amounts of the grassy weeds that now roll in to my beach daily. It looked to me like "pre-hab", not a full on bloom, appreciating it's hard to tell visually. Certainly one would not consider getting into the water. An hour or so after I took the pics a breeze came up and dispersed, by noon no evidence.