Harmful Algal Bloom (HAB) Event Information
Bloom Code 25-3490-B1
Where
Water Body Cayuga Lake
Latitude and Longitude 42.5076, -76.5451
Segment Lakeshore Segment Southwest 4: Glenwood Point to Crowbar Point
County Tompkins
Extent Small Localized (few properties)
When
Bloom Reported September 17, 2025 06:00 PM
Bloom Sampled September 17, 2025 06:00 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 reported: very light and dusty, disbursed

Weather
Weather Sunny
Wind speed
Wind direction
Water Temp
Air Temp