National Weather Service on Instagram: "Among the most critical NWS Ocean Prediction Center (OPC) forecasts supporting maritime safety preparedness are OPC’s High Seas and Offshore Waters Forecasts! High Seas Forecasts, issued 4x daily and two days in advance for transoceanic ships, whereas Offshore Waters Forecasts cover ~20–250 nautical miles off the U.S. East and West coasts released 4x per day with wind and wave forecasts 5 days in advance, guiding fishing and coastal vessels and protecting

National Weather Service on Instagram: "With World Maritime Day around the corner, we recognize the NOAA NWS Ocean Prediction Center (OPC) for its constant commitment to enhancing maritime safety. Most are familiar with hurricanes and tropical storms, but not many consider the threats from “extratropical” cyclones, like Nor’easters, and other critical threats to mariners on the open ocean. Once upon a time, the Beaufort Scale - the recognized measurement of windspeed intensity - listed “Violent