Watches, Warnings & Advisories
2 products found for Marine Zone: LMZ742
Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE National Weather Service Chicago IL 954 PM CST Sat Feb 21 2026 LMZ740>743-221200- /O.CON.KLOT.SC.Y.0022.260222T0900Z-260224T0900Z/ Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 954 PM CST Sat Feb 21 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 AM SUNDAY TO 3 AM CST TUESDAY... * WHAT...Northwest winds to 30 kt and significant waves to 11 ft occasionally to 14 ft expected. Occasional 35 kt gales are possible Sunday night. * WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet Harbor IL to Gary IN. * WHEN...From 3 AM Sunday to 3 AM CST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
Hazardous Weather Outlook
Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 252 PM CST Sat Feb 21 2026 LMZ740>745-222100- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 252 PM CST Sat Feb 21 2026 This Hazardous Weather Outlook is for portions of the Illinois nearshore waters of Lake Michigan and the Indiana nearshore waters of Lake Michigan. .DAY ONE...Tonight. Weather hazards expected... Hazardous conditions for small craft. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Sunday night and Monday... Gale force winds and very hazardous waves. Elevated Freezing Spray Risk. Tuesday through Thursday... Hazardous conditions for small craft are likely. $$ Carlaw Visit us at www.weather.gov/chicago