Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 220146
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
946 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.

LCZ460-220300-
LAKE ST CLAIR-
946 PM EDT TUE MAR 21 2017

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

.TODAY...WEST WINDS 5 TO 10 KNOTS BECOMING NORTHWEST 10 TO 15 KNOTS.
MOSTLY SUNNY. WAVES 2 FEET OR LESS.
.TONIGHT...NORTH WINDS 15 TO 20 KNOTS. MOSTLY CLEAR. WAVES 2 FEET OR
LESS.
.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...SOUTHEAST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR...THEN
MOSTLY CLOUDY WITH A CHANCE OF LIGHT RAIN...LIGHT FREEZING RAIN AND
SNOW LATE IN THE EVENING. WAVES 2 FEET OR LESS.
.FRIDAY...SOUTHWEST WINDS 5 TO 10 KNOTS. RAIN. WAVES 2 FEET OR LESS.
.SATURDAY...EAST WINDS 10 TO 15 KNOTS. RAIN. WAVES 2 FEET OR LESS.

$$

MR

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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