Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 290752 RRA
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
343 AM EDT MON MAY 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...A BROAD AREA OF LOW PRESSURE WILL SLOWLY DRIFT ACROSS
PORTIONS OF NORTHERN ONTARIO THIS WEEK. THIS IS EXPECTED TO RESULT
IN A LONG DURATION OF MODEST WEST TO SOUTHWESTERLY FLOW OVER THE
GREAT LAKES. IT MAY TAKE UNTIL THIS WEEKEND TO SEE A SUBSTANTIAL
SURFACE RIDGE TO BUILD INTO THE CENTRAL GREAT LAKES.

LCZ460-292000-
LAKE ST CLAIR-
343 AM EDT MON MAY 29 2017

.TODAY...SOUTHWEST WINDS 5 TO 10 KNOTS INCREASING TO 10 TO 15 KNOTS
IN THE AFTERNOON. SUNNY IN THE MORNING...THEN PARTLY SUNNY WITH A
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. WAVES 2 FEET
OR LESS.
.TONIGHT...SOUTHWEST WINDS 10 TO 15 KNOTS DIMINISHING TO 5 TO 10
KNOTS IN THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY. A CHANCE OF
SHOWERS AND THUNDERSTORMS EARLY IN THE EVENING...THEN A CHANCE OF
LIGHT SHOWERS LATE IN THE EVENING. WAVES 2 FEET OR LESS.
.TUESDAY...SOUTHWEST WINDS 5 TO 10 KNOTS BECOMING WEST 15 TO 20
KNOTS. PARTLY SUNNY. WAVES 2 FEET OR LESS.
.TUESDAY NIGHT...WEST WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 5 TO
10 KNOTS IN THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY. WAVES 2
FEET OR LESS.
.WEDNESDAY...WEST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY THEN CLEARING.
WAVES 2 FEET OR LESS.
.THURSDAY...SOUTHWEST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES 2 FEET OR LESS.
.FRIDAY...NORTHWEST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. SHOWERS AND
THUNDERSTORMS LIKELY. WAVES 2 FEET OR LESS.

$$

HLO

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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