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000
FZUS63 KDTX 221947
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
341 PM EDT WED MAY 22 2013

.SYNOPSIS...A LARGE LOW PRESSURE SYSTEM...AVERAGING 29.60
INCHES...OVER NORTHERN IOWA WILL CONTINUE TO SLOWLY TRACK EAST
TOWARDS THE ST. LAWRENCE SEAWAY TONIGHT. THIS LOW WILL BRING
SEVERAL ROUNDS OF SHOWERS AND THUNDERSTORMS THROUGH THURSDAY. THE
COLD FRONT ASSOCIATED WITH THIS LOW WILL PUSH THROUGH THE SOUTHERN
GREAT LAKES THURSDAY...ALLOWING HIGH PRESSURE TO BUILD IN ACROSS THE
CENTRAL GREAT LAKES ON FRIDAY.

LCZ460-230800-
LAKE ST CLAIR-
341 PM EDT WED MAY 22 2013

.TONIGHT...SOUTHWEST WINDS 5 TO 10 KNOTS. LIGHT SHOWERS WITH
THUNDERSTORMS LIKELY THROUGH MIDNIGHT...THEN PARTLY CLOUDY WITH A
CHANCE OF LIGHT SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS AFTER
MIDNIGHT. AREAS OF FOG. WAVES 2 FEET OR LESS.
.THURSDAY...NORTHWEST WINDS 5 TO 10 KNOTS...BECOMING NORTH 15 TO
20 KNOTS WITH GUSTS TO 30 KNOTS BY AFTERNOON. LIGHT SHOWERS LIKELY.
MOSTLY CLOUDY. WAVES 1 TO 3 FEET.
.THURSDAY NIGHT...NORTH WINDS 10 TO 15 KNOTS. MOSTLY CLEAR. WAVES
1 TO 3 FEET.
.FRIDAY...NORTH WINDS 10 TO 15 KNOTS. MOSTLY SUNNY. WAVES 1 TO
3 FEET.
.FRIDAY NIGHT...LIGHT AND VARIABLE WINDS. MOSTLY CLEAR. WAVES 2 FEET
OR LESS.
.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.

$$

MM

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)