000
FZUS63 KDTX 231355
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
952 AM EDT THU MAY 23 2013

.SYNOPSIS...A LARGE LOW PRESSURE SYSTEM OVER SOUTHERN
ONTARIO...AVERAGING 29.60 INCHES...WILL SLOWLY TRACK NORTHEAST
THROUGH THE ST. LAWRENCE SEAWAY TODAY. THE COLD FRONT ASSOCIATED
WITH THIS LOW WILL PUSH THROUGH THE SOUTHERN GREAT LAKES
TODAY...ALLOWING HIGH PRESSURE TO BUILD IN ACROSS THE CENTRAL GREAT
LAKES ON FRIDAY. THE HIGH WILL SETTLE OVER THE CENTRAL GREAT LAKES
REGION THROUGH THE WEEKEND.

LCZ460-232000-
LAKE ST CLAIR-
952 AM EDT THU MAY 23 2013

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.REST OF TODAY...NORTHWEST WINDS 5 TO 10 KNOTS...BECOMING NORTH
15 TO 20 KNOTS WITH GUSTS TO 30 KNOTS BY AFTERNOON. LIGHT SHOWERS.
WAVES 1 TO 3 FEET...BUILDING TO 2 TO 4 FEET LATE.
.TONIGHT...NORTH WINDS 15 TO 20 KNOTS WITH GUSTS TO 30 KNOTS...
DIMINISHING TO 10 TO 15 KNOTS AFTER MIDNIGHT. PARTLY CLOUDY WITH A
SLIGHT CHANCE OF LIGHT SHOWERS THROUGH MIDNIGHT...THEN CLEAR AFTER
MIDNIGHT. WAVES 2 TO 4 FEET...SUBSIDING TO 1 TO 3 FEET AFTER
MIDNIGHT.
.FRIDAY...NORTH WINDS 10 TO 15 KNOTS. SUNNY. WAVES 1 TO 3 FEET.
.FRIDAY NIGHT...LIGHT AND VARIABLE WINDS. MOSTLY CLEAR. WAVES 2 FEET
OR LESS. MAXIMUM WAVE HEIGHT AROUND 5 FEET.
.SATURDAY...LIGHT AND VARIABLE WINDS...BECOMING NORTHEAST 5 TO
10 KNOTS THROUGH MIDNIGHT. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
.SUNDAY...LIGHT AND VARIABLE WINDS. MOSTLY CLEAR. WAVES 2 FEET OR
LESS.
.MONDAY...LIGHT AND VARIABLE WINDS. MOSTLY CLEAR. WAVES 2 FEET OR
LESS.

$$

HLO

WAVES ARE THE SIGNIFICANT WAVE HEIGHT - THE AVERAGE OF THE HIGHEST
1/3 OF THE WAVE SPECTRUM. MAXIMUM WAVE HEIGHT IS THE HIGHEST 1/20
WAVE HEIGHT.

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