Not sure how up-to-date your charts are, whether they're electronic or paper?
The companies listed below have programs that'll help you stay current.
Garmin provides map updates directly to your electronic devices.
Joining Club Jeppesen makes updating your charts easy, automatic and economical.
Daily Freshest Data updates downloadable free for a year, online.
Provide OceanGrafix with your chart number and they will send an email notification whenever a new edition of your chart is created by NOAA.