Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 221446
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
946 AM EST SAT NOV 22 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...HIGH PRESSURE...MEASURING 30.50 INCHES...WILL SETTLE
OVER THE EASTERN SEABOARD TODAY. LOW PRESSURE...AVERAGING 29.40
INCHES...WILL MEANWHILE MOVE FROM NORTHERN ONTARIO INTO QUEBEC.
STRONG FLOW BETWEEN THESE TWO SYSTEMS WILL CREATE STRONG SOUTHWEST
WINDS OVER THE CENTRAL GREAT LAKES TODAY...WITH DECREASING SPEEDS
TONIGHT AS THE LOW AND THE HIGH BOTH MOVE EAST. ANOTHER LOW PRESSURE
SYSTEM WILL THEN LIFT THROUGH THE GREAT LAKES SUNDAY INTO MONDAY.

LCZ460-222130-
LAKE ST CLAIR-
946 AM EST SAT NOV 22 2014

.REST OF TODAY...SOUTHWEST WINDS 15 TO 20 KNOTS. LIGHT SHOWERS AND
LIGHT FREEZING RAIN LIKELY LATE IN THE MORNING...THEN LIGHT SHOWERS
LIKELY BY AFTERNOON. CLOUDY. WAVES 1 TO 3 FEET.
.TONIGHT...SOUTHWEST WINDS 15 TO 20 KNOTS...DIMINISHING TO 10 TO
15 KNOTS AFTER MIDNIGHT. CLOUDY WITH LIGHT SHOWERS LIKELY. WAVES
1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 10 TO 15 KNOTS. LIGHT SHOWERS LIKELY IN THE
MORNING...THEN A CHANCE OF LIGHT SHOWERS BY AFTERNOON. CLOUDY. WAVES
2 FEET OR LESS.
.SUNDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KNOTS. RAIN. WAVES 2 FEET
OR LESS.
.MONDAY...SOUTH WINDS 15 TO 20 KNOTS...BECOMING SOUTHWEST 20 TO 25
KNOTS WITH GUSTS TO 30 KNOTS BY AFTERNOON. A CHANCE OF LIGHT
SHOWERS...THEN A CHANCE OF LIGHT RAIN AND SNOW SHOWERS BY EVENING.
MOSTLY CLOUDY. WAVES 1 TO 3 FEET. A SMALL CRAFT ADVISORY MAY BE
NEEDED.
.TUESDAY...WEST WINDS 15 TO 20 KNOTS. MOSTLY CLOUDY WITH A CHANCE OF
LIGHT SNOW SHOWERS. WAVES 1 TO 3 FEET.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY. WAVES
2 FEET OR LESS.

$$

HLO

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


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