A stationary front will produce thunderstorms and heavy rainfall that could lead to local flooding across the Florida Peninsula through midweek. A strong Pacific storm will bring unsettled weather to much of the Western U.S. through Thursday. Heavy rainfall may result in isolated flash flooding near burn scars and sensitive terrain. Isolated dry thunderstorms may lead to fire starts. 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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