FQCN13 CWTO 210655
MARINE FORECASTS FOR THE CANADIAN PORTION OF THE GREAT LAKES AND THE
ONTARIO PORTION OF THE ST. LAWRENCE RIVER ISSUED BY ENVIRONMENT
CANADA AT 3:00 A.M. EDT MONDAY 21 APRIL 2025 FOR TODAY TONIGHT AND
TUESDAY.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 10:30 A.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 15 KNOTS BACKING TO NORTHEAST 20 EARLY THIS MORNING
 THEN TO NORTH 20 THIS AFTERNOON. WIND BACKING TO NORTHWEST 15 THIS
 EVENING THEN DIMINISHING TO VARIABLE 10 TUESDAY MORNING. SNOW OR
 RAIN ENDING THIS EVENING.

EASTERN LAKE SUPERIOR.
WIND SOUTHEAST 15 KNOTS BACKING TO EAST 20 EARLY THIS MORNING THEN TO
 NORTHEAST 20 NEAR NOON EXCEPT SOUTHEAST 15 OVER EASTERN SECTIONS.
 WIND BECOMING NORTH 20 EARLY THIS EVENING THEN BACKING TO NORTHWEST
 20 LATE THIS EVENING. WIND DIMINISHING TO NORTHWEST 15 TUESDAY
 MORNING AND TO VARIABLE 10 NEAR NOON TUESDAY. WIND BECOMING LIGHT
 TUESDAY EVENING. SNOW OR RAIN BECOMING RAIN NEAR NOON AND ENDING
 NEAR MIDNIGHT.

WHITEFISH BAY.
WIND SOUTHEAST 15 KNOTS INCREASING TO SOUTHEAST 25 EARLY THIS MORNING
 THEN DIMINISHING TO SOUTHEAST 15 THIS AFTERNOON. WIND DIMINISHING TO
 VARIABLE 10 EARLY THIS EVENING THEN INCREASING TO NORTHWEST 25 LATE
 THIS EVENING. WIND DIMINISHING TO NORTHWEST 15 TUESDAY MORNING AND
 TO NORTHWEST 10 NEAR NOON TUESDAY. WIND BECOMING LIGHT TUESDAY
 EVENING. RAIN WITH A RISK OF THUNDERSTORMS THIS MORNING CHANGING TO
 SCATTERED SHOWERS OR FLURRIES NEAR MIDNIGHT AND ENDING OVERNIGHT.
 FOG PATCHES FORMING THIS AFTERNOON AND DISSIPATING NEAR MIDNIGHT.

NORTHERN LAKE HURON.
WIND SOUTHEAST 20 KNOTS VEERING TO SOUTH 25 THIS AFTERNOON THEN TO
 SOUTHWEST 30 EARLY THIS EVENING. WIND VEERING TO WEST 30 NEAR
 MIDNIGHT THEN DIMINISHING TO NORTHWEST 15 NEAR NOON TUESDAY. WIND
 DIMINISHING TO NORTHWEST 10 TUESDAY EVENING. SHOWERS ENDING THIS
 EVENING WITH A RISK OF THUNDERSTORMS. FOG PATCHES FORMING NEAR NOON
 AND DISSIPATING THIS EVENING.

SOUTHERN LAKE HURON.
WIND SOUTHEAST 20 KNOTS VEERING TO SOUTH 25 THIS AFTERNOON THEN TO
 SOUTHWEST 30 EARLY THIS EVENING. WIND DIMINISHING TO WEST 20 NEAR
 MIDNIGHT AND TO WEST 15 TUESDAY MORNING. WIND DIMINISHING TO
 VARIABLE 10 NEAR NOON TUESDAY. SHOWERS ENDING THIS EVENING WITH A
 RISK OF THUNDERSTORMS. FOG PATCHES FORMING NEAR NOON AND DISSIPATING
 THIS EVENING.

GEORGIAN BAY.
WIND SOUTHEAST 15 KNOTS INCREASING TO SOUTHEAST 25 EARLY THIS MORNING
 AND TO SOUTHEAST 30 LATE THIS MORNING. WIND VEERING TO SOUTH 25 THIS
 AFTERNOON THEN TO SOUTHWEST 25 THIS EVENING. WIND VEERING TO WEST 25
 TUESDAY MORNING THEN DIMINISHING TO WEST 15 TUESDAY AFTERNOON. WIND
 DIMINISHING TO NORTHWEST 10 TUESDAY EVENING. SHOWERS TODAY AND
 TONIGHT. RISK OF THUNDERSTORMS TODAY AND EARLY THIS EVENING. FOG
 PATCHES FORMING THIS AFTERNOON AND DISSIPATING THIS EVENING.

LAKE ST. CLAIR.
WIND EAST 20 KNOTS VEERING TO SOUTHEAST 15 EARLY THIS MORNING THEN TO
 SOUTH 20 LATE THIS MORNING. WIND VEERING TO SOUTHWEST 20 NEAR NOON
 THEN TO WEST 15 THIS EVENING. WIND DIMINISHING TO LIGHT NEAR NOON
 TUESDAY. SHOWERS ENDING THIS AFTERNOON WITH A RISK OF THUNDERSTORMS.

WESTERN LAKE ERIE.
WIND EAST 20 KNOTS VEERING TO SOUTHEAST 15 EARLY THIS MORNING THEN TO
 SOUTHWEST 20 NEAR NOON. WIND VEERING TO WEST 15 THIS EVENING THEN
 DIMINISHING TO SOUTHWEST 10 NEAR NOON TUESDAY. WIND BECOMING LIGHT
 TUESDAY EVENING. SHOWERS ENDING THIS EVENING WITH A RISK OF
 THUNDERSTORMS. FOG PATCHES FORMING EARLY THIS MORNING AND
 DISSIPATING THIS AFTERNOON.

EASTERN LAKE ERIE.
WIND NORTHEAST 20 KNOTS VEERING TO SOUTHEAST 15 EARLY THIS MORNING
 THEN TO SOUTH 20 NEAR NOON. WIND VEERING TO SOUTHWEST 20 THIS
 AFTERNOON THEN DIMINISHING TO SOUTHWEST 15 THIS EVENING. WIND
 DIMINISHING TO LIGHT TUESDAY EVENING. SHOWERS AND FOG PATCHES TODAY
 AND THIS EVENING WITH A RISK OF THUNDERSTORMS.

WESTERN LAKE ONTARIO.
WIND EAST 20 KNOTS INCREASING TO EAST 25 THIS MORNING THEN
 DIMINISHING TO EAST 15 THIS AFTERNOON. WIND BECOMING SOUTHWEST 15
 EARLY THIS EVENING THEN INCREASING TO SOUTHWEST 20 OVERNIGHT. WIND
 DIMINISHING TO LIGHT TUESDAY EVENING. SHOWERS TODAY AND THIS EVENING
 WITH A RISK OF THUNDERSTORMS. FOG PATCHES FORMING THIS AFTERNOON AND
 DISSIPATING OVERNIGHT.

EASTERN LAKE ONTARIO.
WIND EAST 15 KNOTS INCREASING TO EAST 20 THIS MORNING THEN VEERING TO
 SOUTHEAST 15 THIS AFTERNOON. WIND VEERING TO SOUTHWEST 15 EARLY THIS
 EVENING THEN INCREASING TO SOUTHWEST 20 NEAR MIDNIGHT. WIND
 DIMINISHING TO NORTHWEST 10 TUESDAY EVENING. SHOWERS TODAY AND THIS
 EVENING WITH A RISK OF THUNDERSTORMS. FOG PATCHES FORMING THIS
 EVENING AND DISSIPATING NEAR MIDNIGHT.

KINGSTON TO CORNWALL.
WIND LIGHT BECOMING NORTHEAST 10 KNOTS THIS MORNING THEN BECOMING
 SOUTH 10 THIS EVENING. WIND INCREASING TO SOUTHWEST 15 NEAR MIDNIGHT
 THEN DIMINISHING TO SOUTHWEST 10 TUESDAY EVENING. SCATTERED SHOWERS
 THIS AFTERNOON AND TONIGHT WITH A RISK OF THUNDERSTORMS.

END