Harmful Algal Bloom Report

Bloom Code 25-3476-B8
Where
Water Body Cayuga Lake
Latitude and Longitude 42.6702192, -76.7112704
Segment Lakeshore Segment Northwest 1: Sheldrake Point to Deans Cove
County Seneca
Extent Large Localized
When
Bloom Reported October 23, 2025 11:00 AM
Bloom Sampled October 23, 2025 11:00 AM
Microscopic Examination
Map
Bloom Description

Volunteer reported: 51 degrees; wind SW 6 mph. Otherwise lake very clear. Brief rain storm previous night. HAB seems to be especially clumped around leaves in water. HAB still persisting 4 hours after first spotted. *Updated 10/24/25 to add: Volunteer reports the HAB is still present. Air temp ~ 40F.