Lake Erie Bloom Position Forecast

These movies show the modeled bloom position from the date of satellite imagery as of 2024-07-11 to a minimum of 96 hours from time of the model run, using water current data from the Lake Erie Operational Forecast System (LEOFS). Potential for bloom movement is forecast in 3-dimensions using a hydrodynamic model with the satellite imagery. The modeled output does not contain clouds. Black coloring indicates the absence of chlorophyll and grey indicates area with no data. Water temperature and winds (in magenta) are the averages for the western basin from the model.

Surface concentration of the bloom, which is likely to be experienced by boaters.

Total bloom biomass--all the bloom, both surface and subsurface.

Archived Forecasts

View or download the archived mp4 files of past forecasts.

NOTE: The concentration predicted by the bloom position forecast is for guidance only, and may not represent the actual bloom condition in Lake Erie.