Great Lakes Forecast
Issued by NWS

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033
FZUS63 KDTX 142044 RRA
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
343 PM EST TUE FEB 14 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...WILL PUSH EAST OF LAKE
SUPERIOR INTO QUEBEC TUESDAY INTO WEDNESDAY MORNING. AS LOW PRESSURE
MOVES EAST...A MODERATE PRESSURE GRADIENT WILL FORM BEHIND THE
LOW...ALLOWING WIND GUSTS TO PEAK BETWEEN 30 - 35 KTS OVER LAKE
HURON THROUGH WEDNESDAY. HIGH PRESSURE...29.90...WILL THEN START TO
PUSH OVER THE GREAT LAKES REGION THURSDAY...AND WILL TAKE HOLD
HEADING INTO THE WEEKEND.

LCZ460-150900-
LAKE ST CLAIR-
343 PM EST TUE FEB 14 2017

.TONIGHT...WEST WINDS 10 TO 15 KNOTS INCREASING TO 15 TO 20 KNOTS
EARLY IN THE MORNING. PARTLY CLOUDY EARLY IN THE EVENING BECOMING
MOSTLY CLOUDY. A CHANCE OF LIGHT RAIN AND SNOW SHOWERS IN THE
EVENING.
.WEDNESDAY...NORTHWEST WINDS 15 TO 20 KNOTS. MOSTLY CLOUDY. A CHANCE
OF FLURRIES.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY
UNTIL EARLY MORNING BECOMING PARTLY CLOUDY. A CHANCE OF FLURRIES IN
THE EVENING.
.THURSDAY...NORTHWEST WINDS 10 TO 15 KNOTS DIMINISHING TO 5 TO
10 KNOTS IN THE LATE MORNING AND AFTERNOON. PARTLY SUNNY.
.THURSDAY NIGHT...NORTH WINDS 5 TO 10 KNOTS EARLY IN THE EVENING
BECOMING LIGHT AND VARIABLE. PARTLY CLOUDY.
.FRIDAY...LIGHT AND VARIABLE WINDS BECOMING SOUTHEAST 5 TO 10 KNOTS
IN THE AFTERNOON AND EVENING. PARTLY CLOUDY.
.SATURDAY...SOUTHWEST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR.
.SUNDAY...NORTHWEST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR.

WAVES OMITTED DUE TO ICE COVERAGE.

$$

DG

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

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT
WEATHER.GOV/GREATLAKES



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