Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 241945
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
345 PM EDT SUN APR 24 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...HIGH PRESSURE...30.40 INCHES...WILL HOLD STEADY ACROSS
NORTHERN ONTARIO TONIGHT THROUGH TUESDAY. MEANWHILE...LOW PRESSURE
OF 29.40 INCHES...WILL TRACK FROM SOUTH DAKOTA THIS EVENING TO
SOUTHERN MINNESOTA BY MONDAY MORNING. THIS LOW WILL WEAKEN AS IT
MOVES ACROSS LOWER MICHIGAN MONDAY NIGHT. AS THE REMNANT LOW
TRACKS INTO THE EASTERN GREAT LAKES ON TUESDAY...IT WILL DRIVE A
COLD FRONT FROM THE SOUTHERN GREAT LAKES INTO THE OHIO VALLEY.
THIS WILL ALLOW THE HIGH PRESS SYSTEM PARKED OVER NORTHERN ONTARIO
TO EXPAND ACROSS THE GREAT LAKES REGION BY WEDNESDAY.

LCZ460-250800-
LAKE ST CLAIR-
345 PM EDT SUN APR 24 2016

.TONIGHT...EAST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES 2 FEET OR
LESS.
.MONDAY...SOUTHEAST WINDS 5 TO 10 KNOTS...BECOMING SOUTH 10 TO
15 KNOTS BY MID AFTERNOON. PARTLY SUNNY. A CHANCE OF SHOWERS AND
THUNDERSTORMS BY MID AFTERNOON. WAVES 2 FEET OR LESS.
.MONDAY NIGHT...SOUTH WINDS 5 TO 10 KNOTS...VEERING TO THE SOUTHWEST
LATE. MOSTLY CLOUDY WITH SHOWERS AND THUNDERSTORMS LIKELY. WAVES
2 FEET OR LESS.
.TUESDAY...NORTH WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY. A CHANCE OF
DRIZZLE. WAVES 2 FEET OR LESS.
.TUESDAY NIGHT...NORTHEAST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY.
WAVES 2 FEET OR LESS.
.WEDNESDAY...NORTHEAST WINDS 10 TO 15 KNOTS. MOSTLY SUNNY...THEN
MOSTLY CLOUDY WITH A CHANCE OF LIGHT SHOWERS THROUGH MIDNIGHT. WAVES
2 FEET OR LESS.
.THURSDAY...NORTHEAST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY. A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES 2 FEET OR LESS.
.FRIDAY...NORTHEAST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. WAVES 2 FEET
OR LESS.

$$

SC

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



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