Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 201326
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
923 AM EDT SUN APR 20 2014

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...LOW PRESSURE WILL TRACK FROM HUDSON BAY INTO QUEBEC
TODAY INTO TONIGHT...PUSHING A FRONTAL BOUNDARY SOUTH TO NORTHERN
LAKE HURON. THIS FRONT WILL REMAIN NEARLY STATIONARY UNTIL A SECOND
LOW PRESSURE MOVES INTO THE GREAT LAKES AND DRAWS IT SOUTH MONDAY
NIGHT INTO TUESDAY. HIGH PRESSURE WILL THEN BUILD INTO THE REGION
THROUGH THE MIDDLE OF THE WEEK.

LCZ460-202000-
LAKE ST CLAIR-
923 AM EDT SUN APR 20 2014

.REST OF TODAY...LIGHT AND VARIABLE WINDS...BECOMING SOUTHEAST 5 TO
10 KNOTS BY AFTERNOON. MOSTLY SUNNY. WAVES 2 FEET OR LESS.
.TONIGHT...SOUTH WINDS 5 TO 10 KNOTS IN THE EVENING...BECOMING LIGHT
AND VARIABLE OVERNIGHT. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
.MONDAY...SOUTH WINDS 5 TO 10 KNOTS. A CHANCE OF LIGHT SHOWERS BY
MID AFTERNOON. PARTLY SUNNY. WAVES 2 FEET OR LESS.
.MONDAY NIGHT...SOUTHWEST WINDS 5 TO 10 KNOTS...VEERING TO THE
NORTHWEST AFTER MIDNIGHT. A CHANCE OF SHOWERS AND THUNDERSTORMS
THROUGH MIDNIGHT...THEN LIGHT SHOWERS LIKELY AFTER MIDNIGHT. MOSTLY
CLOUDY. WAVES 2 FEET OR LESS.
.TUESDAY...NORTH WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO 10 KNOTS
THROUGH MIDNIGHT. PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.WEDNESDAY...NORTHEAST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
2 FEET OR LESS.
.THURSDAY...SOUTHEAST WINDS 10 TO 15 KNOTS. A CHANCE OF LIGHT
SHOWERS. PARTLY CLOUDY. WAVES 2 FEET OR LESS.

$$

SC

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






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