Harmful Algal Bloom Report

Bloom Code 25-3400-B22

Where

Water Body Cayuga Lake
Latitude and Longitude 42.76613, -76.7366
Segment Open Water 3: Cayuga Lake Mid-South
County Cayuga
Extent Widespread or Lake-wide: The HAB is as far as you can see, and seems to affect the entire waterbody, or most or all of the shoreline.

When

Bloom Reported October 27, 2025 10:00 AM
Bloom Sampled
Microscopic Examination

Bloom Description

Volunteer reported: Observed from the MV Teal as we were riding north to store the boat for the winter in Cayuga. We encountered the bloom in the middle of the lake for about a half mile or so. It may have been more widespread, but we traveled through it in a few minutes. Then we were out of it. Extensive area covered, lots of algal green streaks.