Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 291337
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
937 AM EDT SAT APR 29 2017

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...HIGH PRESSURE...STRENGTHENING TO 30.40 INCHES...WILL
SETTLE INTO THE NORTHERN GREAT LAKES TODAY WHILE A FRONTAL BOUNDARY
LIFTS INTO THE NORTHERN OHIO VALLEY. LOW PRESSURE MOVING THROUGH THE
PLAINS SATURDAY NIGHT AND SUNDAY WILL PUSH THE FRONT NORTHWARD
THROUGH THE CENTRAL GREAT LAKES. THE LOW WILL THEN LIFT ACROSS THE
WESTERN AND NORTHERN GREAT LAKES MONDAY AND MONDAY NIGHT.

LCZ460-292015-
LAKE ST CLAIR-
937 AM EDT SAT APR 29 2017

.REST OF TODAY...NORTHEAST WINDS 15 TO 20 KNOTS. CLOUDY. WAVES 1 TO
3 FEET.
.TONIGHT...NORTHEAST WINDS 15 TO 20 KNOTS. CLOUDY WITH SHOWERS AND
THUNDERSTORMS LIKELY. WAVES 1 TO 3 FEET.
.SUNDAY...EAST WINDS 15 TO 20 KNOTS DIMINISHING TO 10 TO 15 KNOTS IN
THE LATE MORNING AND AFTERNOON. CLOUDY. THUNDERSTORMS LIKELY IN THE
MORNING. SHOWERS LIKELY. A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
WAVES 1 TO 3 FEET.
.SUNDAY NIGHT...EAST WINDS 10 TO 15 KNOTS DIMINISHING TO 5 TO 10
KNOTS LATE IN THE EVENING...THEN BECOMING SOUTHEAST 10 TO 15 KNOTS
AFTER MIDNIGHT. SHOWERS WITH THUNDERSTORMS LIKELY. WAVES 2 FEET OR
LESS.
.MONDAY...SOUTHWEST WINDS 15 TO 20 KNOTS. THUNDERSTORMS LIKELY IN
THE MORNING. SHOWERS. A CHANCE OF THUNDERSTORMS IN THE AFTERNOON AND
EVENING. WAVES 1 TO 3 FEET.
.TUESDAY...WEST WINDS 20 TO 25 KNOTS WITH GUSTS TO 30 KNOTS. MOSTLY
CLOUDY WITH A CHANCE OF LIGHT SHOWERS. WAVES 1 TO 3 FEET. A SMALL
CRAFT ADVISORY MAY BE NEEDED.
.WEDNESDAY...NORTHEAST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY. WAVES 2
FEET OR LESS.

$$

SF

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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