U.S. National COVID Wastewater Forecast

Holt-Winters exponential smoothing model with 52-week seasonality. Select training start and cut-off dates to see the forecast vs actuals.

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Training Start Date: | Forecast Cut-off Date:

weeks of training data

Drag the gray (upper) slider to set the training start date and the blue (lower) slider to set the cut-off date; training always spans at least 104 weeks. The upper 50% confidence interval region is bounded at an activity level of 30.

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