Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 291344
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
944 AM EDT SUN MAR 29 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...LOW PRESSURE...DEEPENING TO 29.30 INCHES...WILL TRACK
ACROSS ONTARIO AND NORTHERN MICHIGAN TONIGHT. THIS WILL INCREASE
SOUTHWEST WINDS TO GALE FORCE OVER MUCH OF LAKE HURON TODAY INTO
TONIGHT...WITH NORTHWEST GALES THEN CONTINUING OVER THE NORTHERN
THIRD OF THE LAKE MONDAY. ANOTHER LOW PRESSURE SYSTEM WILL THEN
TRACK ACROSS THE SOUTHERN GREAT LAKES MONDAY NIGHT INTO
TUESDAY...HOWEVER WINDS DO NOT LOOK AS STRONG WITH THIS SECOND
SYSTEM.

LCZ460-292015-
LAKE ST CLAIR-
944 AM EDT SUN MAR 29 2015

.REST OF TODAY...SOUTH WINDS 10 TO 15 KNOTS...INCREASING TO 15 TO
20 KNOTS BY LATE MORNING. MOSTLY SUNNY BY LATE MORNING. LIGHT RAIN
AND SNOW SHOWERS LATE. WAVES 2 FEET OR LESS.
.TONIGHT...SOUTHWEST WINDS 20 TO 25 KNOTS...BECOMING WEST 15 TO
20 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY THROUGH MIDNIGHT...BECOMING
PARTLY CLOUDY OVERNIGHT. LIGHT RAIN AND SNOW SHOWERS LIKELY EARLY IN
THE EVENING...THEN A CHANCE OF LIGHT RAIN AND SNOW SHOWERS BY
MIDNIGHT. WAVES 2 FEET OR LESS.
.MONDAY...WEST WINDS 10 TO 15 KNOTS...INCREASING TO 15 TO 20 KNOTS
BY LATE MORNING. PARTLY SUNNY. WAVES 2 FEET OR LESS.
.MONDAY NIGHT...WEST WINDS 5 TO 10 KNOTS...BACKING TO THE SOUTHEAST
AFTER MIDNIGHT. MOSTLY CLOUDY WITH LIGHT RAIN AND SNOW SHOWERS
LIKELY. WAVES 2 FEET OR LESS.
.TUESDAY...EAST WINDS 10 TO 15 KNOTS...BECOMING NORTHEAST 5 TO
10 KNOTS BY MID AFTERNOON. CLOUDY WITH A CHANCE OF LIGHT RAIN AND
SNOW SHOWERS THROUGH EARLY AFTERNOON...THEN PARTLY SUNNY WITH A
CHANCE OF LIGHT SHOWERS BY MID AFTERNOON. PARTLY CLOUDY THROUGH
MIDNIGHT. WAVES 2 FEET OR LESS.
.WEDNESDAY...SOUTH WINDS 10 TO 15 KNOTS. MOSTLY CLEAR. WAVES 2 FEET
OR LESS.
.THURSDAY...WEST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY. A CHANCE OF
LIGHT SHOWERS. WAVES 2 FEET OR LESS.

WAVE HEIGHTS ARE FOR ICE FREE AREAS.

$$

HLO

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


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