Harmful Algal Bloom Report

Bloom Code 25-3430-B1

Where

Water Body Cayuga Lake
Latitude and Longitude 42.473567, -76.530272
Segment Lakeshore Segment Southwest 2: Cass Park to Glenwood Point
County Tompkins
Extent Large Localized: The HAB is in a small area, but affects many properties, along a large segment of the shoreline, or in a specific region of the waterbody.

When

Bloom Reported July 15, 2025 04:30 PM
Bloom Sampled July 15, 2025 04:30 PM
Microscopic Examination

Bloom Description

Volunteer Reports: The HAB is moving south from the adjacent zone to the north 3288. Sunny and windless all day. Had checked earlier at 12:30 PM and seemed like a bloom was incipient as there were clearly cyanobacteria beginning to gather on the surface but not clearly defined bloom. The are also a lot of "junk" on the surface now, including what may be black clumps and a few white ones.