Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 141438 RRA
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
937 AM 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 SYSTEM...29.40 INCHES...WILL DROP
SOUTHWARD OVER PORTIONS OF ONTARO NORTH OF LAKE SUPERIOR TODAY. AN
ASSOCIATED COLD FRONT WILL THEN PUSH THROUGH LAKE HURON TONIGHT. A
MUCH STRONGER LOW PRESSURE SYSTEM WILL STRENGTHEN NEAR THE ATLANTIC
COASTLINE AND CANADIAN MARITIMES TO 28.60 INCHES BY THURSDAY
EVENING. AT THIS SAME TIME...A RIDGE OF SURFACE HIGH PRESSURE WILL
BUILD INTO THE CENTRAL GREAT LAKES.

LCZ460-142100-
LAKE ST CLAIR-
937 AM EST TUE FEB 14 2017

.REST OF TODAY...SOUTHWEST WINDS 10 TO 15 KNOTS. PARTLY SUNNY.
.TONIGHT...WEST WINDS 10 TO 15 KNOTS INCREASING TO 15 TO 20 KNOTS
EARLY IN THE MORNING. MOSTLY CLOUDY. A CHANCE OF LIGHT SHOWERS IN
THE EVENING. A CHANCE OF LIGHT SNOW SHOWERS UNTIL EARLY MORNING.
.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 AFTERNOON AND EVENING. PARTLY SUNNY BECOMING MOSTLY
SUNNY LATE IN THE AFTERNOON BECOMING PARTLY CLOUDY.
.FRIDAY...SOUTHEAST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY.
.SATURDAY...SOUTHWEST 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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