Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 092037 RRA
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
336 PM EST MON JAN 9 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...29.40 INCHES...OVER THE CENTRAL PLAINS
TONIGHT WILL STRENGTHEN AS IT APPROACHES THE WESTERN GREAT LAKES ON
TUESDAY. STRONG SOUTHERLY WINDS WILL SETUP ACROSS THE EASTERN GREAT
LAKES ON TUESDAY BEFORE DIMINISHING BY WEDNESDAY AS THE LOW
PRESSURE...29.10 INCHES...MOVES NORTHWARD ACROSS ONTARIO AND
WEAK RIDGING BUILDS INTO THE REGION.

LCZ460-100900-
LAKE ST CLAIR-
336 PM EST MON JAN 9 2017

...GALE WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY
EVENING...

.TONIGHT...SOUTH WINDS 10 TO 15 KNOTS...INCREASING TO 20 TO 25 KNOTS
OVERNIGHT. LIGHT SNOW BY LATE EVENING.
.TUESDAY...SOUTH WINDS 20 TO 25 KNOTS...INCREASING TO 30 KNOTS LATE.
GUSTS TO 35 KNOT GALES. SNOW EARLY...THEN FREEZING RAIN...LIGHT
SLEET AND A CHANCE OF SNOW LATE IN THE MORNING. RAIN.
.TUESDAY NIGHT...SOUTHWEST WINDS TO 30 KNOTS WITH GUSTS TO 35 KNOT
GALES...DIMINISHING TO 15 TO 20 KNOTS OVERNIGHT. CLOUDY WITH A
CHANCE OF LIGHT RAIN EARLY IN THE EVENING...THEN MOSTLY CLOUDY WITH
A CHANCE OF LIGHT RAIN AND SNOW LATE IN THE EVENING. PARTLY CLOUDY
AFTER MIDNIGHT.
.WEDNESDAY...SOUTH WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY. A CHANCE OF
LIGHT RAIN IN THE AFTERNOON.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 15 KNOTS...BECOMING SOUTHWEST
15 TO 20 KNOTS AFTER MIDNIGHT. RAIN LIKELY IN THE EVENING...THEN
RAIN AFTER MIDNIGHT.
.THURSDAY...WEST WINDS 5 TO 10 KNOTS. RAIN IN THE MORNING...THEN
RAIN LIKELY IN THE AFTERNOON.
.FRIDAY...NORTHEAST WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY.
.SATURDAY...NORTHEAST WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY WITH A
CHANCE OF SNOW.

WAVES OMITTED DUE TO ICE COVERAGE.

$$

MR

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/DTX/GLFTABLESC (ALL LOWER CASE)

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



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