Active Weather Alerts
Dense Fog Advisory
Issued: 2:28 AM Jun. 10, 2026 – National Weather Service
...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT WEDNESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM TO 9 PM CDT WEDNESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to one quarter mile or less. For the Small Craft Advisory, southwest winds to 25 kt expected. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...For the Dense Fog Advisory, until 7 AM CDT Wednesday. For the Small Craft Advisory, from 2 PM to 9 PM CDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. &&
Small Craft Advisory
Issued: 2:28 AM Jun. 10, 2026 – National Weather Service
...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT WEDNESDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM TO 9 PM CDT WEDNESDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to one quarter mile or less. For the Small Craft Advisory, southwest winds to 25 kt expected. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...For the Dense Fog Advisory, until 7 AM CDT Wednesday. For the Small Craft Advisory, from 2 PM to 9 PM CDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. &&
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