Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 290818
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
418 AM EDT SUN MAR 29 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...THE NEXT LOW PRESSURE SYSTEM REMAINS ON TRACK TO MOVE
NORTH OF LAKE SUPERIOR TODAY. SOUTHWEST GALES ARE EXPECTED TO
DEVELOP OVER SAGINAW BAY AND THE OPEN WATERS OF CENTRAL AND NORTHERN
LAKE HURON. THIS WILL PULL WARMER AIR INTO THE REGION INITIALLY
BEFORE THE ASSOCIATED COLD FRONT SWEEPS THROUGH LAKE HURON AND LOWER
MICHIGAN TONIGHT. NORTHWEST WIND WILL THEN BRING COLDER AIR BACK
INTO THE REGION BEFORE THE NEXT WEAK LOW PRESSURE SYSTEM ARRIVES
BY TUESDAY.

LCZ460-292030-
LAKE ST CLAIR-
418 AM EDT SUN MAR 29 2015

.TODAY...SOUTH WINDS 10 TO 15 KNOTS...INCREASING TO 20 TO 25 KNOTS.
MOSTLY SUNNY DURING THE MORNING...THEN INCREASING CLOUDINESS. LIGHT
RAIN AND SNOW SHOWERS LATE. WAVES 2 FEET OR LESS.
.TONIGHT...SOUTHWEST WINDS 20 TO 25 KNOTS...BECOMING WEST 15 TO
20 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY THROUGH MIDNIGHT...BECOMING
PARTLY CLOUDY OVERNIGHT. LIGHT RAIN AND SNOW SHOWERS LIKELY EARLY IN
THE EVENING...THEN A CHANCE OF LIGHT RAIN AND SNOW SHOWERS BY
MIDNIGHT. WAVES 2 FEET OR LESS.
.MONDAY...WEST WINDS 10 TO 15 KNOTS...INCREASING TO 15 TO 20 KNOTS
BY LATE MORNING. PARTLY SUNNY. WAVES 2 FEET OR LESS.
.MONDAY NIGHT...WEST WINDS 5 TO 10 KNOTS...BACKING TO THE SOUTHEAST
AFTER MIDNIGHT. MOSTLY CLOUDY WITH LIGHT RAIN AND SNOW SHOWERS
LIKELY. WAVES 2 FEET OR LESS.
.TUESDAY...EAST WINDS 10 TO 15 KNOTS...BECOMING NORTHEAST 5 TO
10 KNOTS BY MID AFTERNOON. CLOUDY WITH A CHANCE OF LIGHT RAIN AND
SNOW SHOWERS THROUGH EARLY AFTERNOON...THEN PARTLY SUNNY WITH A
CHANCE OF LIGHT SHOWERS BY MID AFTERNOON. PARTLY CLOUDY THROUGH
MIDNIGHT. WAVES 2 FEET OR LESS.
.WEDNESDAY...SOUTH WINDS 10 TO 15 KNOTS. MOSTLY CLEAR. WAVES 2 FEET
OR LESS.
.THURSDAY...WEST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY. A CHANCE OF
LIGHT SHOWERS. WAVES 2 FEET OR LESS.

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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