The legacy OPC website URL https://www.opc.ncep.noaa.gov permanently redirects to https://ocean.weather.gov. On or after July 9, 2019 the old URL will not work. Users must use https://ocean.weather.gov to access the OPC website. More information is available at https://www.weather.gov/media/notification/scn19-10opc_terminate.pdf.

Graphical Forecast Verification

Step 1: Select the Charts:   Display the   With the  Hour Forecast   

Step 2: Select the Times*:  Atlantic Surface Analysis Valid:          48 Hour Forecast Valid: 
Step 3: Choose the Resolution:   Standard Large XL
Step 4:
Displaying the Atlantic Surface Analysis Valid: 00Z Jan 01 1970analysis image Displaying the 48 Hour Forecast Valid: 00Z Jan 03 1970forecast image

*NOTE: Ensure the valid times on the charts match each other. Either the 48-hour or 96-hour forecasts can be verified by using the drop down menu to select a similar valid date and time.