Harmful Algal Bloom (HAB) Event Information
Bloom Code 25-3435-B13
Where
Water Body Cayuga Lake
Latitude and Longitude 42.54584, -76.5953
Segment Lakeshore Segment Southwest 7: Taughannock Falls State Park
County Tompkins
Extent Large Localized
When
Bloom Reported September 24, 2025 10:05 AM
Bloom Sampled September 24, 2025 10:05 AM
Microscopic Examination
What
Bloom Genera [1]
Microscopy Present Dominant

Bloom Chemistry
[1] Genera - plural of genus, a category of classification in biology that ranks between the family level and the species level. Because there are many different species of bacteria that are difficult to distinguish, it is more useful to classify bacteria by genus rather than species.
[2] Microcystin
Map of HAB event
Bloom Description

Volunteer Reports: I also observed a bloom at the boat launch area and along the inlet under the bridge. Outside of the marina, the water was rougher, saw no blooms, but it seemed to continue in the quieter water at the swimming beach area. A light HAB was all along the swimming beach at Taughannock Falls SP. My pictures don't show it well because it was fairly thin and a motorboat wake stirred up the water and scattered it before I could take the photo of the larger area.

Weather
Weather
Wind speed
Wind direction
Water Temp
Air Temp