Great Lakes Forecast
Issued by NWS

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497
FZUS63 KDTX 261354
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
954 AM 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...WEAK RESIDUAL RIDGING WILL REMAIN POSITIONED OVER
SOUTHEAST MICHIGAN TODAY AS LOW PRESSURE OF 29.40 INCHES DEVELOPS
OVER THE GREAT PLAINS AND UPPER MIDWEST. THIS LOW WILL TRACK INTO
LOWER MICHIGAN ON THURSDAY...PULLING A COLD FRONT THROUGH THE AREA.
WEAK HIGH PRESSURE WILL THEN BUILD BACK INTO THE REGION ON FRIDAY.

LCZ460-262000-
LAKE ST CLAIR-
954 AM EDT WED APR 26 2017

.REST OF TODAY...SOUTHEAST WINDS 10 TO 15 KNOTS. PARTLY SUNNY. WAVES
2 FEET OR LESS.
.TONIGHT...SOUTHEAST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY. WAVES 2
FEET OR LESS.
.THURSDAY...SOUTH WINDS 10 TO 15 KNOTS INCREASING TO 15 TO 20 KNOTS
IN THE LATE MORNING AND AFTERNOON. PARTLY SUNNY WITH A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FEET.
.THURSDAY NIGHT...SOUTHWEST WINDS 15 TO 20 KNOTS DIMINISHING TO 5 TO
10 KNOTS. PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS EARLY
IN THE EVENING. WAVES 2 FEET OR LESS.
.FRIDAY...SOUTH WINDS 5 TO 10 KNOTS. PARTLY SUNNY UNTIL LATE
AFTERNOON BECOMING MOSTLY CLOUDY. A CHANCE OF LIGHT SHOWERS LATE IN
THE EVENING. WAVES 2 FEET OR LESS.
.SATURDAY...NORTHEAST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY WITH A
CHANCE OF SHOWERS. WAVES 2 FEET OR LESS.
.SUNDAY...SOUTHEAST WINDS 15 TO 20 KNOTS. CLOUDY WITH SHOWERS
LIKELY. WAVES 2 FEET OR LESS.

$$

MANN

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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