National Weather Service United States Department of Commerce

 

Overview of Coastal, Offshore and High Seas Marine Zones

 

Detailed view of the Marine Zones and access to forecasts.
Detailed view of the Offshore Zones and access to forecasts.

Shapefile Type: Polygon

Data source: Coastline derived from US Counties

Naming convention: mzddmmyy (coastal marine zones), ozddmmyy (offshore zones), hzddmmyy (high seas zones)  where ddmmyy = day-month-year

NWS Specifications: NWSI 10-302

Description: The NWS issues marine forecasts, watches, warnings and advisories for a set of defined zone for offshore and coastal waters of the U.S.

 

Description Valid date Data Download # Records MD5SUM Documentation
Coastal Marine Zones
Including the Great Lakes
05 December 2017 mz05de17.zip 500 FA965DFE11B22DE017068A1A6F169F10 Change History Metadata
Offshore Marine Zones 1 April 2014 oz01ap14.zip 80 741F0832EB0F56065536E78986DAACD0 Change History Metadata
High Seas Marine Zones 30 June 2017 hz30jn17.zip 6 BAB06AE4FDBB224F361AD78977E7637C Change History Metadata

 

Shapefile Attributes:

Field Name Type width,dec Description
ID character 6 Marine Zone Identifier
WFO character 3 Assigned WFO (Office Identifier)
GL_WFO character 3 Great lakes WFO responsible for Open Lake Forecastts
NAME character 250 Name of Marine Zone
AJOIN0 character 5 Not Used
AJOIN1 character 5 Not Used
LON numeric 10,5 Longitude of Centroid [decimal degrees]
LAT numeric 9,5 Latitude of Centroid [decimal degrees]