Great Lakes Forecast
Issued by NWS

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000
FZUS63 KDTX 220243
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
943 PM EST FRI NOV 21 2014

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...MEASURING 30.50 INCHES...WILL SHIFT FROM
THE OHIO VALLEY TO THE EASTERN SEABOARD TONIGHT. LOW
PRESSURE...AVERAGING 29.40 INCHES...WILL MEANWHILE MOVE ACROSS
NORTHERN ONTARIO. STRONG FLOW BETWEEN THESE TWO SYSTEMS WILL CREATE
STRONG SOUTHWEST WINDS OVER THE CENTRAL GREAT LAKES TONIGHT INTO
EARLY SATURDAY. ANOTHER LOW PRESSURE SYSTEM WILL THEN LIFT THROUGH
THE GREAT LAKES SUNDAY INTO MONDAY.

LCZ460-220915-
LAKE ST CLAIR-
943 PM EST FRI NOV 21 2014

.REST OF TONIGHT...SOUTHWEST WINDS 10 TO 15 KNOTS...INCREASING TO
15 TO 20 KNOTS THIS EVENING. MOSTLY CLEAR...THEN A CHANCE OF LIGHT
SNOW SHOWERS AND LIGHT SLEET AFTER MIDNIGHT. MOSTLY CLOUDY WITH
LIGHT FREEZING RAIN AND LIGHT SLEET LIKELY LATE. WAVES 1 TO 3 FEET.
.SATURDAY...SOUTHWEST WINDS 15 TO 20 KNOTS. LIGHT FREEZING RAIN
LIKELY EARLY...THEN A CHANCE OF LIGHT SHOWERS. CLOUDY. WAVES 1 TO
3 FEET.
.SATURDAY NIGHT...SOUTHWEST WINDS 15 TO 20 KNOTS...DIMINISHING TO
10 TO 15 KNOTS BY LATE EVENING. A CHANCE OF LIGHT SHOWERS MAINLY
BEFORE MIDNIGHT...THEN LIGHT SHOWERS LIKELY LATE. CLOUDY. WAVES
2 FEET OR LESS.
.SUNDAY...SOUTH WINDS 10 TO 15 KNOTS. A CHANCE OF LIGHT SHOWERS
THROUGH MID AFTERNOON...THEN A CHANCE OF LIGHT RAIN LATE. CLOUDY.
WAVES 2 FEET OR LESS.
.SUNDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KNOTS...BECOMING SOUTH
15 TO 20 KNOTS BY LATE EVENING. LIGHT RAIN. WAVES 1 TO 3 FEET.
.MONDAY...SOUTHWEST WINDS 15 TO 20 KNOTS...INCREASING TO 20 TO 25
KNOTS BY EVENING. A CHANCE OF LIGHT SHOWERS...THEN A CHANCE OF LIGHT
RAIN AND SNOW SHOWERS BY EVENING. MOSTLY CLOUDY. WAVES 1 TO 3 FEET. A
SMALL CRAFT ADVISORY MAY BE NEEDED.
.TUESDAY...WEST WINDS 20 TO 25 KNOTS. MOSTLY CLOUDY WITH A CHANCE OF
LIGHT RAIN AND SNOW SHOWERS. WAVES 1 TO 3 FEET.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 15 KNOTS. A CHANCE OF SNOW
SHOWERS. MOSTLY CLOUDY. WAVES 2 FEET OR LESS.

$$

KURIMSKI

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



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