Great Lakes Forecast
Issued by NWS

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765
FZUS63 KDTX 211957
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
357 PM EDT TUE MAR 21 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...NEAR 30.70 INCHES...OVER MANITOBA WILL
CONTINUE TO BUILD SOUTHEAST OVER THE GREAT LAKES REGION THROUGH
EARLY THURSDAY MORNING. THE HIGH WILL GRADUALLY WEAKEN TO...30.60
INCHES...DURING THIS PERIOD.

LCZ460-220815-
LAKE ST CLAIR-
357 PM EDT TUE MAR 21 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING...

.TONIGHT...NORTH WINDS 15 TO 25 KNOTS. MOSTLY CLEAR. WAVES 1 TO 3
FEET.
.WEDNESDAY...NORTH WINDS 15 TO 20 KNOTS DIMINISHING TO 5 TO 10
KNOTS. MOSTLY SUNNY. WAVES 2 FEET OR LESS.
.WEDNESDAY NIGHT...NORTHEAST WINDS 5 TO 10 KNOTS IN THE EVENING
BECOMING LIGHT AND VARIABLE. CLEAR. WAVES 2 FEET OR LESS.
.THURSDAY...LIGHT AND VARIABLE WINDS BECOMING SOUTHEAST 5 TO 10
KNOTS IN THE LATE MORNING AND AFTERNOON. MOSTLY SUNNY. WAVES 2 FEET
OR LESS.
.THURSDAY NIGHT...SOUTH WINDS 5 TO 10 KNOTS. PARTLY CLOUDY EARLY IN
THE EVENING. A CHANCE OF LIGHT SNOW IN THE EVENING. A CHANCE OF
LIGHT RAIN AND FREEZING RAIN LATE IN THE EVENING...THEN RAIN AFTER
MIDNIGHT. WAVES 2 FEET OR LESS.
.FRIDAY...SOUTHWEST WINDS 5 TO 10 KNOTS. RAIN EARLY IN THE
MORNING.. THEN A CHANCE OF LIGHT RAIN IN THE LATE MORNING AND EARLY
AFTERNOON. RAIN LIKELY LATE IN THE EVENING. WAVES 2 FEET OR LESS.
.SATURDAY...EAST WINDS 10 TO 15 KNOTS. RAIN. WAVES 2 FEET OR LESS.
.SUNDAY...EAST WINDS 10 TO 15 KNOTS. RAIN. WAVES 2 FEET OR LESS.

$$

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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