Great Lakes Forecast
Issued by NWS

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855
FZUS63 KDTX 270248
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
948 PM EST SUN FEB 26 2017

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...29.60 INCHES...WILL PUSH ACROSS LAKE
SUPERIOR INTO ONTARIO PROVINCE DURING THE LATE AFTERNOON AND
EVENING.  A COLD FRONT WILL SETTLE OVER LOWER MICHIGAN TONIGHT AND
DISSIPATE IN FAVOR OF A SURFACE RIDGE OF HIGH PRESSURE MONDAY
AFTERNOON.  THE NEXT LOW PRESSURE SYSTEM WILL BEGIN TO DEEPEN OVER
THE CENTRAL MISSISSIPPI RIVER VALLEY TUESDAY NIGHT BEFORE A
SECONDARY LOW PRESSURE SYSTEM DEEPENS OVER THE GREAT LAKES REGION
WEDNESDAY NIGHT AND THURSDAY.

LCZ460-270900-
LAKE ST CLAIR-
948 PM EST SUN FEB 26 2017

.REST OF TONIGHT...SOUTHWEST WINDS 15 TO 20 KNOTS DIMINISHING TO
10 TO 15 KNOTS EARLY IN THE MORNING. MOSTLY CLEAR. WAVES 1 TO
3 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 15 KNOTS BECOMING SOUTH 5 TO
10 KNOTS IN THE LATE MORNING AND AFTERNOON. PARTLY SUNNY. WAVES
2 FEET OR LESS.
.MONDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY EARLY
IN THE EVENING BECOMING MOSTLY CLOUDY. A CHANCE OF LIGHT RAIN AFTER
MIDNIGHT. WAVES 2 FEET OR LESS.
.TUESDAY...SOUTHEAST WINDS 5 TO 10 KNOTS INCREASING TO 10 TO
15 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON, THEN BECOMING
SOUTH 5 TO 10 KNOTS LATE IN THE AFTERNOON. CLOUDY. A CHANCE OF LIGHT
RAIN IN THE MORNING...THEN A CHANCE OF LIGHT RAIN AND THUNDERSTORMS
IN THE AFTERNOON. WAVES 2 FEET OR LESS.
.TUESDAY NIGHT...SOUTH WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 5 TO
10 KNOTS EARLY IN THE MORNING. RAIN AND A CHANCE OF THUNDERSTORMS.
WAVES 2 FEET OR LESS.
.WEDNESDAY...WEST WINDS 5 TO 10 KNOTS BECOMING NORTHWEST 10 TO
15 KNOTS IN THE AFTERNOON AND EVENING. LIGHT RAIN AND A CHANCE OF
THUNDERSTORMS EARLY IN THE MORNING, THEN LIGHT RAIN. WAVES 2 FEET OR
LESS.
.THURSDAY...NORTH WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY WITH SNOW AND
RAIN LIKELY. WAVES 2 FEET OR LESS.
.FRIDAY...WEST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY. WAVES 2 FEET OR
LESS.

$$

DG

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/DTX/GLFTABLESC

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT
WEATHER.GOV/GREATLAKES



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