Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 170759
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
359 AM EDT SUN MAY 17 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...WEAK HIGH PRESSURE...30.10 INCHES...NOW EXTENDING ACROSS
LAKE HURON WILL DRIFT INTO ONTARIO THROUGH THE AFTERNOON.  WARM AND
INCREASINGLY MOIST CONDITIONS UNDER LIGHT WIND WILL CONTINUE TO
SUPPORT FOG AND PERIODIC SHOWERS AND THUNDERSTORMS INTO MONDAY.
STRONG LOW PRESSURE TRACKING INTO THE NORTHERN GREAT LAKES WILL SEND
THE NEXT COLD FRONT ACROSS THE REGION MONDAY EVENING.

LCZ460-172015-
LAKE ST CLAIR-
359 AM EDT SUN MAY 17 2015

.TODAY...LIGHT AND VARIABLE WINDS...BECOMING SOUTHEAST 10 TO
15 KNOTS. MOSTLY CLOUDY. A CHANCE OF LIGHT SHOWERS EARLY...THEN A
CHANCE OF SHOWERS AND THUNDERSTORMS BY LATE MORNING. AREAS OF FOG
EARLY. PATCHY FOG BY LATE MORNING. WAVES 2 FEET OR LESS.
.TONIGHT...SOUTH WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 2 FEET OR LESS.
.MONDAY...SOUTH WINDS 5 TO 10 KNOTS...BECOMING SOUTHWEST 10 TO
15 KNOTS BY LATE MORNING...THEN DIMINISHING TO 5 TO 10 KNOTS LATE.
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS BY MID
AFTERNOON. WAVES 2 FEET OR LESS.
.MONDAY NIGHT...WEST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. A CHANCE OF
LIGHT SHOWERS THROUGH MIDNIGHT. WAVES 2 FEET OR LESS.
.TUESDAY...NORTHWEST WINDS 10 TO 15 KNOTS. MOSTLY SUNNY...BECOMING
PARTLY SUNNY BY MID AFTERNOON...BECOMING MOSTLY CLEAR. WAVES 2 FEET
OR LESS.
.WEDNESDAY...WEST WINDS 10 TO 15 KNOTS. MOSTLY CLEAR. WAVES 2 FEET
OR LESS.
.THURSDAY...WEST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 2 FEET OR
LESS.

$$

MR

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


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