FQCN13 CWTO 171426 MARINE FORECASTS FOR THE CANADIAN PORTION OF THE GREAT LAKES AND THE ONTARIO PORTION OF THE ST. LAWRENCE RIVER ISSUED BY ENVIRONMENT CANADA AT 10:30 A.M. EDT FRIDAY 17 APRIL 2026 FOR TODAY TONIGHT AND SATURDAY. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 6:30 P.M. EDT. FOG IMPLIES VISIBILITY LESS THAN 1 MILE. WINDS ARE FOR OFFSHORE AREAS. NEARSHORE WINDS MAY VARY CONSIDERABLY DUE TO SHORELINE EFFECTS. WESTERN LAKE SUPERIOR. WIND SOUTHEAST 20 KNOTS INCREASING TO SOUTHEAST 30 THIS AFTERNOON THEN DIMINISHING TO NORTHWEST 25 NEAR MIDNIGHT. WIND BACKING TO WEST 25 NEAR NOON SATURDAY THEN VEERING TO NORTHWEST 25 SATURDAY EVENING. SCATTERED SHOWERS THIS MORNING. SHOWERS AND FOG PATCHES TONIGHT WITH A RISK OF THUNDERSTORMS BECOMING SCATTERED FLURRIES OR SCATTERED SHOWERS AND ENDING SATURDAY MORNING. SCATTERED FLURRIES SATURDAY EVENING. EASTERN LAKE SUPERIOR. WIND SOUTHEAST 20 KNOTS INCREASING TO SOUTHEAST 30 THIS AFTERNOON THEN BECOMING NORTHWEST 30 LATE OVERNIGHT. WIND BACKING TO WEST 30 SATURDAY AFTERNOON THEN VEERING TO NORTHWEST 25 SATURDAY EVENING. SCATTERED SHOWERS THIS MORNING. SHOWERS AND FOG PATCHES BEGINNING THIS EVENING WITH A RISK OF THUNDERSTORMS BECOMING SCATTERED FLURRIES OR SCATTERED SHOWERS SATURDAY MORNING AND ENDING NEAR NOON SATURDAY. SCATTERED FLURRIES SATURDAY EVENING. WHITEFISH BAY. WIND SOUTHEAST 15 KNOTS INCREASING TO SOUTHEAST 20 THIS AFTERNOON THEN BECOMING NORTHWEST 20 EARLY SATURDAY MORNING. WIND INCREASING TO NORTHWEST 30 NEAR NOON SATURDAY THEN BACKING TO WEST 25 SATURDAY EVENING. SHOWERS OR SCATTERED FLURRIES BEGINNING NEAR MIDNIGHT WITH A RISK OF THUNDERSTORMS BECOMING SCATTERED FLURRIES SATURDAY AFTERNOON. FOG PATCHES FORMING NEAR MIDNIGHT AND DISSIPATING SATURDAY MORNING. NORTHERN LAKE HURON. WIND SOUTHEAST 10 KNOTS INCREASING TO SOUTHEAST 15 EARLY THIS EVENING AND TO SOUTH 25 NEAR MIDNIGHT. WIND INCREASING TO NORTHWEST 30 NEAR NOON SATURDAY THEN DIMINISHING TO NORTHWEST 20 SATURDAY EVENING. SHOWERS SATURDAY WITH A RISK OF THUNDERSTORMS BECOMING SCATTERED FLURRIES OR SCATTERED SHOWERS. FOG PATCHES DISSIPATING SATURDAY AFTERNOON. SOUTHERN LAKE HURON. WIND LIGHT INCREASING TO SOUTHEAST 15 KNOTS EARLY THIS EVENING AND TO SOUTHEAST 25 NEAR MIDNIGHT. WIND VEERING TO SOUTH 25 EARLY SATURDAY MORNING THEN TO WEST 20 NEAR NOON SATURDAY. SHOWERS SATURDAY WITH A RISK OF THUNDERSTORMS. FOG PATCHES DISSIPATING EARLY THIS EVENING. FOG PATCHES FORMING NEAR MIDNIGHT AND DISSIPATING SATURDAY AFTERNOON. NORTHERN GEORGIAN BAY. WIND NORTHEAST 10 KNOTS BECOMING LIGHT NEAR NOON THEN INCREASING TO SOUTHEAST 15 THIS EVENING. WIND INCREASING TO SOUTHEAST 25 LATE OVERNIGHT THEN BECOMING WEST 25 NEAR NOON SATURDAY. WIND VEERING TO NORTHWEST 20 SATURDAY EVENING. SHOWERS SATURDAY WITH A RISK OF THUNDERSTORMS. FOG PATCHES DISSIPATING SATURDAY EVENING. SOUTHERN GEORGIAN BAY. WIND LIGHT INCREASING TO SOUTHEAST 20 KNOTS THIS EVENING AND TO SOUTHEAST 25 LATE OVERNIGHT. WIND VEERING TO SOUTH 20 SATURDAY MORNING THEN TO WEST 20 SATURDAY AFTERNOON. WIND VEERING TO NORTHWEST 15 SATURDAY EVENING. SHOWERS SATURDAY WITH A RISK OF THUNDERSTORMS. FOG PATCHES DISSIPATING SATURDAY EVENING. LAKE ST. CLAIR. WIND LIGHT BECOMING SOUTHEAST 10 KNOTS THIS AFTERNOON THEN INCREASING TO SOUTHEAST 15 NEAR MIDNIGHT. WIND VEERING TO SOUTH 20 EARLY SATURDAY MORNING THEN TO SOUTHWEST 20 NEAR NOON SATURDAY. WIND VEERING TO NORTHWEST 20 SATURDAY EVENING. SHOWERS SATURDAY WITH A RISK OF THUNDERSTORMS. FOG PATCHES DISSIPATING NEAR NOON. FOG PATCHES FORMING NEAR MIDNIGHT AND DISSIPATING SATURDAY AFTERNOON. WESTERN LAKE ERIE. WIND LIGHT BECOMING EAST 10 KNOTS THIS AFTERNOON THEN INCREASING TO SOUTHEAST 15 THIS EVENING. WIND VEERING TO SOUTH 20 LATE OVERNIGHT THEN TO SOUTHWEST 25 SATURDAY MORNING. WIND VEERING TO WEST 20 SATURDAY AFTERNOON THEN TO NORTHWEST 20 SATURDAY EVENING. SHOWERS SATURDAY WITH A RISK OF THUNDERSTORMS. FOG PATCHES DISSIPATING NEAR NOON. FOG PATCHES FORMING NEAR MIDNIGHT AND DISSIPATING SATURDAY AFTERNOON. EASTERN LAKE ERIE. WIND LIGHT BECOMING EAST 10 KNOTS THIS EVENING THEN INCREASING TO SOUTHEAST 15 LATE OVERNIGHT. WIND VEERING TO SOUTH 20 SATURDAY MORNING THEN TO SOUTHWEST 25 SATURDAY AFTERNOON. SHOWERS SATURDAY WITH A RISK OF THUNDERSTORMS. FOG PATCHES DISSIPATING SATURDAY EVENING. WESTERN LAKE ONTARIO. WIND LIGHT BECOMING EAST 10 KNOTS THIS EVENING THEN INCREASING TO EAST 15 LATE OVERNIGHT. WIND VEERING TO SOUTHEAST 15 SATURDAY MORNING THEN TO SOUTHWEST 20 SATURDAY AFTERNOON. WIND VEERING TO NORTHWEST 15 SATURDAY EVENING. SHOWERS SATURDAY AFTERNOON AND EVENING WITH A RISK OF THUNDERSTORMS. FOG PATCHES DISSIPATING SATURDAY EVENING. EASTERN LAKE ONTARIO. WIND NORTH 10 KNOTS BECOMING LIGHT NEAR NOON THEN INCREASING TO SOUTHEAST 15 LATE OVERNIGHT. WIND INCREASING TO SOUTHEAST 20 SATURDAY MORNING THEN VEERING TO SOUTHWEST 25 SATURDAY EVENING. SHOWERS SATURDAY LATE IN THE DAY WITH A RISK OF THUNDERSTORMS. FOG PATCHES. KINGSTON TO CORNWALL. WIND NORTH 10 KNOTS BECOMING LIGHT NEAR NOON THEN BECOMING SOUTHEAST 10 EARLY SATURDAY MORNING. WIND INCREASING TO SOUTHEAST 15 NEAR NOON SATURDAY THEN VEERING TO SOUTHWEST 15 SATURDAY EVENING. SHOWERS AND FOG PATCHES SATURDAY EVENING WITH A RISK OF THUNDERSTORMS. FOG PATCHES DISSIPATING NEAR NOON. FOG PATCHES FORMING EARLY THIS EVENING AND DISSIPATING NEAR NOON SATURDAY. END