Harmful Algal Bloom (HAB) Event Information
Bloom Code 25-3406-B7
Where
Water Body Cayuga Lake
Latitude and Longitude 42.78554, -76.71655
Segment Lakeshore Segment Northeast 5: Frontenac Park to Ellis Point
County Cayuga
Extent Widespread
When
Bloom Reported October 12, 2025 01:35 PM
Bloom Sampled October 14, 2025 01:35 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 reported: Nothing unusual. Lake temps are cooling, not really swimmable anymore. Foam streaks on a windy day appeared last week.

Weather
Weather
Wind speed
Wind direction
Water Temp
Air Temp