Harmful Algal Bloom (HAB) Event Information
Bloom Code 25-3410-B3
Where
Water Body Cayuga Lake
Latitude and Longitude 42.7177, -76.70857
Segment Lakeshore Segment Northeast 9: Long Point State Park
County Cayuga
Extent Widespread
When
Bloom Reported September 15, 2025 01:00 PM
Bloom Sampled September 15, 2025 01:00 PM
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: HABs widespread. Very calm wind conditions. Seems like HABs is covering the lake clear to the north.

Weather
Weather Sunny
Wind speed
Wind direction
Water Temp
Air Temp