Gusty winds are expected from portions of the Mid-Atlantic into the Northeast through the night following the system that brought rain to the area. An atmospheric river will move into the Northwest late today into Saturday bringing moderate to heavy rainfall, mountain snow, windy conditions, and high surf to the area over the weekend. Read More >
![]() Few people are affected more by weather than the mariner. An unexpected change in winds, seas, or visibility can reduce the efficiency of marine operations and threaten the safety of a vessel and its crew. The National Weather Service (NWS), a part of the National Oceanic and Atmospheric Administration (NOAA), provides marine warnings and forecasts to serve all mariners who use the waters for livelihood or recreation. The National Weather Service Chicago office is responsible for the Nearshore Marine forecast for the Illinois and Indiana shores. We also issue warnings for short-term events like thunderstorms for the southwestern portion of Lake Michigan. Links: Marine Forecast and Hazard Products:
Lake Michigan Data and Observations:
Great Lakes Data, Observations, and Forecasts:
Water Safety:
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