Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 230155
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
955 PM EDT SUN MAR 22 2015

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...30.40 INCHES...WILL BUILD FROM MANITOBA
INTO LOWER MICHIGAN THROUGH TONIGHT. THIS HIGH WILL EXPAND INTO THE
EASTERN GREAT LAKES MONDAY AND REMAIN NEARLY STATIONARY THROUGH
TUESDAY. A DEEPENING LOW PRESSURE SYSTEM IS FORECAST TO MOVE
ACROSS THE NORTHERN GREAT LAKES WEDNESDAY.

LCZ460-230830-
LAKE ST CLAIR-
955 PM EDT SUN MAR 22 2015

.REST OF TONIGHT...LIGHT AND VARIABLE WINDS...BECOMING NORTH 5 TO
10 KNOTS. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
.MONDAY...NORTHEAST WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY. WAVES NEARLY
CALM.
.MONDAY NIGHT...NORTHEAST WINDS 5 TO 10 KNOTS THROUGH MIDNIGHT...
BECOMING LIGHT AND VARIABLE OVERNIGHT. PARTLY CLOUDY. WAVES NEARLY
CALM.
.TUESDAY...LIGHT AND VARIABLE WINDS...BECOMING EAST 5 TO 10 KNOTS BY
LATE MORNING. MOSTLY SUNNY. WAVES NEARLY CALM.
.TUESDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KNOTS...BECOMING SOUTH
10 TO 15 KNOTS LATE. PARTLY CLOUDY WITH A CHANCE OF LIGHT RAIN AND
SNOW SHOWERS THROUGH MIDNIGHT...THEN MOSTLY CLOUDY WITH LIGHT
SHOWERS LIKELY AFTER MIDNIGHT. WAVES NEARLY CALM.
.WEDNESDAY...SOUTHWEST WINDS 15 TO 20 KNOTS. MOSTLY CLOUDY THROUGH
EARLY AFTERNOON...BECOMING PARTLY CLOUDY. A CHANCE OF LIGHT SHOWERS.
WAVES NEARLY CALM.
.THURSDAY...NORTHWEST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY WITH A
CHANCE OF LIGHT RAIN AND SNOW SHOWERS. WAVES NEARLY CALM.
.FRIDAY...NORTH WINDS 10 TO 15 KNOTS. PARTLY CLOUDY. WAVES NEARLY
CALM.

WAVE HEIGHTS ARE FOR ICE FREE AREAS.

$$

BT

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT
WEATHER.GOV/GREATLAKES (ALL LOWER CASE)



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