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NWS Forecast

FZUS63 KDTX 191452 AAA
GLFSC

LAKE ST CLAIR FORECAST...UPDATED
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1052 AM EDT SUN APR 19 2015

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
HIGH PRESSURE...AVERAGING 30.40 INCHES...CENTERED OVER
THE ONTARIO/QUEBEC BORDER WILL SLOWLY DRIFT EASTWARD AS LOW PRESSURE
MOVES INTO THE REGION. THIS LOW...AVERAGING 29.50 INCHES...OVER THE
OHIO VALLEY WILL DEEPEN TO 29.20 INCHES AS IT LIFTS INTO LOWER
MICHIGAN TODAY AND TONIGHT. THIS LOW WILL THEN CONTINUE INTO ONTARIO
ON MONDAY WITH A COLD FRONT SWEEPING EASTWARD ACROSS THE AREA IN ITS
WAKE.

LCZ460-192015-
LAKE ST CLAIR-
1052 AM EDT SUN APR 19 2015

SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING


REST OF TODAY
EAST WINDS 15 TO 20 KNOTS...INCREASING TO 20 TO
25 KNOTS BY EARLY AFTERNOON...THEN DIMINISHING TO 15 TO 20 KNOTS
LATE. A CHANCE OF LIGHT SHOWERS BY LATE MORNING. A CHANCE OF
THUNDERSTORMS THIS AFTERNOON. LIGHT SHOWERS LATE. WAVES 1 TO 3
FEET.

TONIGHT
EAST WINDS 15 TO 20 KNOTS...BECOMING SOUTHEAST 20 TO
25 KNOTS BY MIDNIGHT...THEN DIMINISHING TO 15 TO 20 KNOTS LATE. RAIN
THROUGH MIDNIGHT...THEN LIGHT SHOWERS AFTER MIDNIGHT. LIGHT SHOWERS
LIKELY LATE. RAIN MAY BE HEAVY AT TIMES THROUGH MIDNIGHT. WAVES 1 TO
3 FEET.

MONDAY
SOUTH WINDS 15 TO 20 KNOTS...BECOMING SOUTHWEST 10 TO
15 KNOTS BY LATE MORNING. MOSTLY CLOUDY. A CHANCE OF LIGHT SHOWERS
THROUGH EARLY AFTERNOON. LIGHT SHOWERS LIKELY BY MID AFTERNOON.
WAVES 1 TO 3 FEET.

MONDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY WITH A
CHANCE OF LIGHT SHOWERS. WAVES 2 FEET OR LESS.

TUESDAY
WEST WINDS 15 TO 20 KNOTS...DIMINISHING TO 10 TO 15 KNOTS
THROUGH MIDNIGHT. PARTLY CLOUDY. A CHANCE OF LIGHT SHOWERS. WAVES
1 TO 3 FEET.

WEDNESDAY
WEST WINDS 15 TO 20 KNOTS. PARTLY CLOUDY. A CHANCE OF
LIGHT SHOWERS. WAVES 2 FEET OR LESS.

THURSDAY
NORTHWEST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY. WAVES
2 FEET OR LESS.



DG

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