At the Cape Elizabeth OCNMS mooring in 42 meters of water (~47°N), the forecasts predicted the onset of hypoxic conditions (<2 mg oxygen / L) very closely to what was observed. The April forecast predicted hypoxia for more than 8 consecutive days beginning on July 2, while the January forecast predicted hypoxia beginning on July 4. This location observed hypoxia beginning on July 2. The forecast predicted the location would remain hypoxic and develop anoxia in late July through mid-October. The observations show that this location probably remained hypoxic but likely never went anoxic.

Oxygen forecasts compared to the Cape Elizabeth 42-meter station observations.