For the county warning areas boundaries, https://www.weather.gov/gis/CWABounds.

For the public forecast zones, https://www.weather.gov/gis/PublicZones.

For coastal marine, https://www.weather.gov/gis/MarineZones.

The above are .zip files. Extract to a folder that you can reference. For example, I, from time to time, still use UIView32, which
has a specific NWS folder. My shapefiles are kept there and when I point my APRSIS32 to that folder for its use, there they are.

No fuss, no muss.

73,
Glenn-KF0ED