A rule of thumb widely applied is if you pay for it, it is not allowed, even if it is just repackaged NOAA data. They are still doing work for you preparing a targeted report, and saving you effort.
Saildocs works really well, is free, and covers pretty much all the NOAA products. You can also set up a subscription so that various reports and GRIBS are mailed to you every day or twice a day or whatever.