Harmful Algal Bloom (HAB) Event Information
Bloom Code 25-3430-B4
Where
Water Body Cayuga Lake
Latitude and Longitude 42.463657, -81.530272
Segment Lakeshore Segment Southwest 2: Cass Park to Glenwood Point
County
Extent Widespread
When
Bloom Reported September 24, 2025 02:30 PM
Bloom Sampled September 24, 2025 02:30 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: The HAB appears to be all along the SW shore. Partly Cloudy, Air Temp in low 70s F, calm wind and water. According to my neighbor, the bloom has appeared to occur at least all day today and perhaps began yesterday

Weather
Weather
Wind speed
Wind direction
Water Temp
Air Temp