Great Lakes Forecast
Issued by NWS

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086
FZUS63 KDTX 230743
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
342 AM EDT TUE MAY 23 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...AN AREA OF LOW PRESSURE...AVERAGING 29.40
INCHES...NOW POSITIONED OVER THE UPPER MISSISSIPPI VALLEY WILL
STRENGTHEN AS IT MOVES SOUTHEASTWARD AND INTO THE OHIO VALLEY
THROUGH TONIGHT.  THIS LOW WILL LINGER OVER THE NORTHERN OHIO VALLEY
THROUGH WEDNESDAY, BEFORE EXITING TO THE EAST.

LCZ460-232000-
LAKE ST CLAIR-
342 AM EDT TUE MAY 23 2017

.TODAY...SOUTHWEST WINDS 5 TO 10 KNOTS EARLY IN THE MORNING BECOMING
BECOMING SOUTH 5 TO 10 KNOTS IN THE AFTERNOON. MOSTLY CLOUDY. WAVES
2 FEET OR LESS.
.TONIGHT...SOUTHEAST WINDS 5 TO 10 KNOTS THIS EVENING BECOMING EAST
5 TO 10 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY. WAVES 2 FEET OR LESS.
.WEDNESDAY...EAST WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY. A CHANCE OF
LIGHT SHOWERS UNTIL LATE AFTERNOON...THEN A CHANCE OF SHOWERS AND
THUNDERSTORMS LATE IN THE AFTERNOON. WAVES 2 FEET OR LESS.
.WEDNESDAY NIGHT...EAST WINDS 10 TO 15 KNOTS. SHOWERS AND A CHANCE
OF THUNDERSTORMS. WAVES 2 FEET OR LESS.
.THURSDAY...EAST WINDS 10 TO 15 KNOTS DIMINISHING TO 5 TO 10 KNOTS
IN THE AFTERNOON...THEN BACKING TO THE NORTH IN THE EVENING. MOSTLY
CLOUDY. LIGHT SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS EARLY IN
THE MORNING...THEN A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 2
FEET OR LESS.
.FRIDAY...WEST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. A CHANCE OF LIGHT
SHOWERS. WAVES 2 FEET OR LESS.
.SATURDAY...LIGHT AND VARIABLE WINDS. PARTLY CLOUDY. WAVES 2 FEET OR
LESS.

$$

RBP

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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