1. Retention period change - Only the most recent 31 days of OFS output files will be available on CO-OPS THREDDS.
2. File structure changes - To improve THREDDS performance related to file access and data aggregation
All model nowcast and forecast information is based on a hydrodynamic model and should be considered as computer-generated nowcast and forecast guidance.
Water Level Forecast Guidance
This water level animation was created from the latest CBOFS forecast guidance in the Chesapeake Bay. The forecast is for the next 48 hours of water levels as simulated by CBOFS when it is forced by forecast products from National Weather Service's 4km North American Model (NAM4) and the Global operational Real-Time Ocean Forecast System (RTOFS).