Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 231348 RRA
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
947 AM EDT THU MAR 23 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 OF 30.70 INCHES WILL BUILD INTO THE MID
ATLANTIC TODAY. A WARM FRONT WILL LIFT INTO THE REGION TONIGHT
BEFORE STALLING OUT ON FRIDAY OVER NORTHERN LAKE HURON. THE FRONTAL
BOUNDARY WILL THEN DROP SOUTH FRIDAY NIGHT INTO SATURDAY, AS HIGH
PRESSURE BUILDS OVER ONTARIO. MEANWHILE...LOW PRESSURE SYSTEM..AT
29.70 INCHES...WILL SLOWLY TRACK NORTHEASTWARD INTO THE MID
MISSISSIPPI RIVER VALLEY THIS WEEKEND.

LCZ460-232000-
LAKE ST CLAIR-
947 AM EDT THU MAR 23 2017

.REST OF TODAY...SOUTHEAST WINDS 5 TO 10 KNOTS INCREASING TO 10 TO
15 KNOTS IN THE AFTERNOON. PARTLY SUNNY. WAVES 2 FEET OR LESS.
.TONIGHT...SOUTH WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY. A CHANCE OF
LIGHT RAIN LATE IN THE EVENING. LIGHT RAIN LIKELY AFTER MIDNIGHT.
WAVES 2 FEET OR LESS.
.FRIDAY...SOUTH WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 15 TO 20
KNOTS IN THE LATE MORNING AND EARLY AFTERNOON...THEN DIMINISHING TO
10 TO 15 KNOTS LATE IN THE AFTERNOON. MOSTLY CLOUDY. RAIN LIKELY
EARLY IN THE MORNING. WAVES 1 TO 3 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KNOTS DIMINISHING TO 5 TO
10 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY WITH A CHANCE OF LIGHT RAIN.
WAVES 2 FEET OR LESS.
.SATURDAY...SOUTHEAST WINDS 5 TO 10 KNOTS BECOMING EAST 10 TO 15
KNOTS IN THE EVENING. LIGHT RAIN. WAVES 2 FEET OR LESS.
.SUNDAY...SOUTHEAST WINDS 10 TO 15 KNOTS. RAIN. WAVES 2 FEET OR
LESS.
.MONDAY...SOUTHWEST WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY WITH A CHANCE
OF RAIN. 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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