Nearshore Marine Zone Forecasts by the Green Bay, WI Forecast Office
(Click on the area of interest)
NEARSHORE MARINE FORECAST which includes all these zones
SPECIAL MARINE WARNING(s) and
MARINE WEATHER STATEMENT(s)
for these zones
MARINE WEATHER MESSAGE
for these zones
OPEN LAKE FORECAST for LAKE MICHIGAN
(ALL ZONES) (BY ZONES) (SYNOPSIS/MAFOR ONLY)
NDFD MARINE GRAPHICS
for these zones from which the text forecasts are generated
Great Lakes Marine Weather Portal - Includes point forecasts
Great Lakes Water Level Data
Great Lakes nearshore forecasts are subdivided by zone, each identified by text description and a Universal
Generic Code (UGC). The different colors used in the map above have no meaning and are only intended to assist in differentiating the zones.
Great Lakes nearshore marine forecasts are issued throughout the boating season, typically beginning
around April 1 and ending around December 31, dependent on ice conditions on the entrances to
each individual lake. During periods of climatological extremes leading to erratic ice coverage patterns
(shifting of ice edge, late/early freeze, etc.), and based on customer needs, nearshore forecasts
may be issued throughout the winter to support the National Weather Service mission of protecting life and
property on the waters of the Great Lakes.
These forecasts are also available via e-mail
NOTICE - Check time and date of forecasts. Linked data may not represent the latest forecast. The Internet is not part of the National Weather Service's operational data stream and should never be relied upon as a means to obtain the latest forecast and warning data. Become familiar with and use other means such as NOAA Weather Radio to obtain the latest forecasts and warnings. Please read our DISCLAIMER
Visit the Green Bay, WI Forecast Office which provides links to additional products as well as regionally focused information such as point-specific marine forecasts, predicted tides and buoy observations.
Text Interface Version of this page.