133
FZUS63 KDTX 170759
GLFSC
LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
359 AM EDT FRI JUL 17 2026
WAVES ARE THE SIGNIFICANT WAVE HEIGHT - THE AVERAGE OF THE HIGHEST
1/3 OF THE WAVE SPECTRUM. OCCASIONAL WAVE HEIGHT IS THE AVERAGE OF
THE HIGHEST 1/10 OF THE WAVE SPECTRUM.
SYNOPSIS
CANADIAN WILDFIRE SMOKE PERSISTS TODAY AMIDST HIGH
PRESSURE INFLUENCE. THE NEXT WEAK LOW PRESSURE SYSTEMS ARRIVE
TODAY BRINGING A ROUND OF SHOWERS AND THUNDERSTORMS LATE IN THE
DAY AND OVERNIGHT. THIS WILL BE FOLLOWED BY A SECONDARY LOW ON
SATURDAY TRACKING ACROSS THE STRAITS INTO NORTHERN LAKE HURON WITH
ADDITIONAL UNSETTLED WEATHER.
LCZ460-171600-
LAKE ST CLAIR-
359 AM EDT FRI JUL 17 2026
..DENSE SMOKE ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON
TODAY
LIGHT AND VARIABLE WINDS BECOMING SOUTHEAST 10 TO 15 KNOTS.
CLOUDY IN THE MORNING BECOMING PARTLY SUNNY. SMOKE. WAVES 2 FEET OR
LESS.
TONIGHT
SOUTH WINDS 10 TO 15 KNOTS VEERING TO THE SOUTHWEST EARLY
IN THE MORNING. PARTLY CLOUDY. SMOKE EARLY IN THE EVENING.. THEN
AREAS OF SMOKE LATE IN THE EVENING. PATCHY SMOKE AFTER MIDNIGHT.
WAVES 2 FEET OR LESS.
SATURDAY
WEST WINDS 15 TO 20 KNOTS. A CHANCE OF THUNDERSTORMS
EARLY IN THE MORNING. A CHANCE OF LIGHT SHOWERS UNTIL LATE
AFTERNOON...THEN SHOWERS AND A CHANCE OF THUNDERSTORMS EARLY IN THE
AFTERNOON. WAVES 1 TO 3 FEET.
SATURDAY NIGHT
NORTH WINDS 15 TO 20 KNOTS DIMINISHING TO 10 TO 15
KNOTS AFTER MIDNIGHT. MOSTLY CLEAR. A CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE EVENING. WAVES 1 TO 3 FEET.
SUNDAY
NORTH WINDS 10 TO 15 KNOTS BECOMING NORTHEAST 5 TO 10
KNOTS IN THE AFTERNOON AND EVENING. CLEAR. WAVES 2 FEET OR LESS.
MONDAY
SOUTH WINDS 15 TO 20 KNOTS. PARTLY CLOUDY. A CHANCE OF
SHOWERS. WAVES 2 FEET OR LESS.
TUESDAY
NORTHWEST WINDS 20 TO 25 KNOTS. SHOWERS AND A CHANCE OF
THUNDERSTORMS. WAVES 1 TO 3 FEET.
DRK
EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/DTX/GLFTABLESC
GRAPHICAL MARINE FORECASTS ARE AVAILABLE AT WEATHER.GOV/GREATLAKES
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