Harmful Algal Bloom (HAB) Event Information
Bloom Code 25-3431-B2
Where
Water Body Cayuga Lake
Latitude and Longitude 42.48079, -76.53262
Segment Lakeshore Segment Southwest 2: Cass Park to Glenwood Point
County Tompkins
Extent Small Localized (few properties)
When
Bloom Reported July 09, 2025 04:00 PM
Bloom Sampled July 09, 2025 04:00 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: Bloom extended into zone to the north. It was fairly calm with a gentle north wind. By 530 the Bloom had dissipated. Part of western shoreline bloom event.

Weather
Weather
Wind speed
Wind direction
Water Temp
Air Temp