Lake Erie Operational Forecast System 

The Lake Erie Operational Forecast System (LEOFS) is a NOAA automated model-based prediction system aimed at providing improved predictions (guidance) of water levels, water currents and water temperatures in Lake Erie, and the other Great Lakes for the commercial, recreation, and emergency response communities. LEOFS generates hourly nowcast guidance (analyses) and four times daily forecast guidance (out to 30 hours) of total water level, current speed and direction, and water temperature for each of the Great Lakes. The LEOFS predictions will enable users to increase the margin of safety and maximize the efficiency of commerce throughout the Great Lakes.

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