Update to Weather Forecast Ingest Frequency

As of July 19, 2024 the frequency with which HydroForecast short-term (ST-3), incorporates NOAA’s High-Resolution Rapid Refresh (HRRR) and Global Forecast System (GFS) weather forecast data has been updated. The update allows ST-3 forecasts to take advantage of more up-to-date weather forecast data, improving peak flow timing, especially for rises in flow that result from fast moving weather events. 

Now, HRRR is incorporated into ST-3 forecasts every two hours and GFS data every six hours. Previously, weather forecast information was incorporated into the model twice per day, at the inflow forecast issue time (see support doc on When forecasts are issued for more information).