Great Lakes Forecast
Issued by NWS

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458
FZUS63 KDTX 270151
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
951 PM EDT WED APR 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 OF 29.30 INCHES OVER THE UPPER MISSISSIPPI
VALLEY WILL TRACK OVER LAKE MICHIGAN TONIGHT AND INTO LOWER MICHIGAN
ON THURSDAY...PULLING A COLD FRONT THROUGH THE AREA. WEAK HIGH
PRESSURE WILL THEN BUILD BACK INTO THE REGION ON FRIDAY.

LCZ460-270815-
LAKE ST CLAIR-
951 PM EDT WED APR 26 2017

.REST OF TONIGHT...SOUTHEAST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY.
WAVES 2 FEET OR LESS.
.THURSDAY...SOUTHEAST WINDS 10 TO 15 KNOTS BECOMING SOUTH 15 TO 20
KNOTS IN THE LATE MORNING AND AFTERNOON. PARTLY SUNNY. A CHANCE OF
SHOWERS AND THUNDERSTORMS EARLY IN THE AFTERNOON. SHOWERS LIKELY AND
A CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON. WAVES 1 TO 3 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 15 KNOTS BECOMING SOUTHWEST 5 TO
10 KNOTS EARLY IN THE MORNING. PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.FRIDAY...SOUTH WINDS 5 TO 10 KNOTS. PARTLY SUNNY. WAVES 2 FEET OR
LESS.
.FRIDAY NIGHT...SOUTH WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY WITH A
CHANCE OF LIGHT SHOWERS. WAVES 2 FEET OR LESS.
.SATURDAY...NORTH WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY. A CHANCE OF
LIGHT SHOWERS. WAVES 2 FEET OR LESS.
.SUNDAY...SOUTHEAST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY WITH SHOWERS
LIKELY. WAVES 2 FEET OR LESS.
.MONDAY...SOUTHWEST WINDS 15 TO 20 KNOTS WITH GUSTS TO 30 KNOTS.
MOSTLY CLOUDY WITH SHOWERS LIKELY. WAVES 1 TO 3 FEET. A SMALL CRAFT
ADVISORY MAY BE NEEDED.

$$

BT

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

GRAPHICAL MARINE FORECASTS ARE AVAILABLE AT WEATHER.GOV/GREATLAKES



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