National Weather Service United States Department of Commerce

Marine Point Forecasts

Latitude/Longitude Entry
decimal degrees (i.e. 42.134) or
deg min sec (i.e. 42 23 34)
Use (-) for South and West

Marine Point Forecasts are a forecast for a specific point. Also provided on the point forecast pages are the "Forecast at a Glance" feature, and links to the "Hourly Weather Graph" and other data of local interest

Not yet available and/or may only be available experimentally in the areas of Alaska, Micronesia, Samoa, offshore, high seas, Canada, etc.....(a zone forecast may be returned in some of these cases...a zone forecast may also be returned when point data is temporarily unavailable)


A National Weather Service "Marine Point Forecast" refers to a text forecast for a single point generated from a forecaster-generated gridded data set known as the National Digital Forecast Database (NDFD) also used to produce graphics. The NDFD is used as the basis for the majority of local public and marine forecasts and is in the process of being further expanded to the offshore and high seas areas.

In actuality, the "point" is a single small rectangle which represents the resolution of the computer forecast models which is typically 2.5 by 2.5 kilometers.

Please Note: Being a forecast for a single point, the point forecast is very specific and mariners should also be aware of weather conditions in the surrounding area. Forecast information for the surrounding area can be found within the zone forecast and the NDFD graphics. Be aware, the forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.

The map interface and web form above may also be used to obtain point forecasts for land.

These marine point forecasts are also available via the maps found at the relevant forecast office. At the majority of offices clicking on the map will link to the zone forecast and then allow further zooming to the point of interest whereas on the Great Lakes, the first link is directly to a point forecast with the further option to link to the associated zone forecast which includes that point. As a further option, click on links below for interactive maps providing zone/point marine forecasts

Mobile, AL
Eureka, CA
San Francisco, CA
Los Angeles, CA
San Diego, CA
Jacksonville, FL
Key West, FL
Melbourne, FL
Miami, FL
Tallahassee, FL
Tampa Bay Area, FL
Honolulu, HI
Chicago, IL
Northern Indiana, IN
Lake Charles, LA
New Orleans, LA
Boston, MA
Caribou, ME
Portland, ME
Detroit, MI
Gaylord, MI
Grand Rapids, MI
Marquette, MI
Duluth, MN
Morehead City, NC
Wilmington, NC
Buffalo, NY
New York City, NY
Cleveland, OH
Portland, OR
Medford, OR
Philadelphia, PA
Puerto Rico/V.I.
Charleston, SC
Brownsville, TX
Corpus Christi, TX
Houston, TX
Sterling, VA
Wakefield, VA
Seattle, WA
Green Bay, WI
Milwaukee, WI

Tiyan, Guam

A number of users have inquired about the addition of air and water temperature and other items of interest to the marine point forecast pages which are currently only available for select areas. Be aware air temperature and other parameters such as precipitation potential are viewable by clicking on the "Hourly Weather Graph" in the "Additional Forecasts and Information" table at the bottom right corner of each point forecast.