Lake Erie Bloom Position Forecast

This map models bloom position from date of satellite imagery as of 2021-07-25 to a minimum of 96 hours from time of the model run, using water currents 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 gray color indicates area with no data. Water temperature and winds (in magenta) are the averages for the western basin from the model.

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.