Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 050142
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
942 PM EDT WED MAY 4 2016

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...29.50 INCHES...EXTENDING FROM SOUTHEAST
MICHIGAN TO NORTHERN OHIO...WILL SLIDE ACROSS OHIO TONIGHT AND
WEAKEN BY THURSDAY MORNING. MODERATE NORTHERLY WIND WILL FOLLOW
OVER LAKE HURON AND LOWER MICHIGAN THROUGH THROUGH THURSDAY BEFORE
WEAK HIGH PRESSURE...29.90 INCHES...SETTLES OVER THE REGION. THIS
WILL PRODUCE FAVORABLE MARINE CONDITIONS FRIDAY BEFORE THE NEXT
COLD FRONT WHICH IS DUE TO ARRIVE LATER SATURDAY INTO SATURDAY
NIGHT. UNSETTLED MARINE CONDITIONS ARE EXPECTED TO LINGER WITH A
SECONDARY FRONT INTO SUNDAY.

LCZ460-050815-
LAKE ST CLAIR-
942 PM EDT WED MAY 4 2016

.REST OF TONIGHT...SOUTHEAST WINDS 10 TO 15 KNOTS...BECOMING EAST
5 TO 10 KNOTS BY MIDNIGHT...THEN BECOMING NORTHEAST 10 TO 15 KNOTS
AFTER MIDNIGHT...INCREASING TO 15 TO 20 KNOTS LATE. MOSTLY CLOUDY
WITH SCATTERED LIGHT SHOWERS THIS EVENING...THEN PARTLY CLOUDY AFTER
MIDNIGHT. WAVES 2 FEET OR LESS.
.THURSDAY...NORTH WINDS 10 TO 15 KNOTS...INCREASING TO 15 TO
20 KNOTS BY EARLY AFTERNOON...THEN DIMINISHING TO 10 TO 15 KNOTS
LATE. MOSTLY SUNNY. WAVES 2 FEET OR LESS.
.THURSDAY NIGHT...NORTH WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS AFTER MIDNIGHT. CLEAR. WAVES 2 FEET OR LESS.
.FRIDAY...NORTH WINDS 5 TO 10 KNOTS. SUNNY. WAVES 2 FEET OR LESS.
.FRIDAY NIGHT...LIGHT AND VARIABLE WINDS...BECOMING SOUTH 5 TO
10 KNOTS AFTER MIDNIGHT. MOSTLY CLEAR. WAVES NEARLY CALM.
.SATURDAY...SOUTH WINDS 5 TO 10 KNOTS...BECOMING WEST 10 TO 15 KNOTS
BY MID AFTERNOON...THEN VEERING TO THE NORTH THROUGH MIDNIGHT.
PARTLY SUNNY WITH SHOWERS AND THUNDERSTORMS LIKELY...THEN PARTLY
CLOUDY THROUGH MIDNIGHT. WAVES 2 FEET OR LESS.
.SUNDAY...NORTHWEST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 2 FEET
OR LESS.
.MONDAY...SOUTHEAST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. A CHANCE OF
LIGHT SHOWERS. WAVES 2 FEET OR LESS.

$$

SC

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


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