000
FZUS63 KDTX 210843
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
343 AM EST WED JAN 21 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 OF 29.90 INCHES OVER EASTERN IOWA EARLY
THIS MORNING WILL WEAKEN AND SLIDE THROUGH THE NORTHERN OHIO VALLEY
TODAY. HIGH PRESSURE OF 30.40 INCHES WILL THEN BUILD OVER THE
MIDWEST TOMORROW...SLIDING EAST THROUGH THE OHIO VALLEY THURSDAY
NIGHT.

LCZ460-212115-
LAKE ST CLAIR-
343 AM EST WED JAN 21 2015

.TODAY...NORTHEAST WINDS 5 TO 10 KNOTS. SNOW.
.TONIGHT...NORTH WINDS 5 TO 10 KNOTS MAINLY BEFORE MIDNIGHT...
BECOMING LIGHT AND VARIABLE OVERNIGHT. CLOUDY. A CHANCE OF LIGHT
SNOW SHOWERS IN THE EVENING.
.THURSDAY...LIGHT AND VARIABLE WINDS. PARTLY SUNNY. A CHANCE OF
FLURRIES.
.THURSDAY NIGHT...LIGHT AND VARIABLE WINDS...BECOMING SOUTHWEST 5 TO
10 KNOTS LATE. PARTLY CLOUDY MAINLY BEFORE MIDNIGHT...BECOMING
MOSTLY CLOUDY OVERNIGHT.
.FRIDAY...SOUTHWEST WINDS 5 TO 10 KNOTS. MOSTLY CLOUDY...BECOMING
PARTLY SUNNY...BECOMING MOSTLY CLEAR.
.SATURDAY...NORTHWEST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY.
.SUNDAY...NORTHEAST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. A CHANCE OF
LIGHT SNOW SHOWERS.

WAVES OMITTED DUE TO ICE COVERAGE.

$$

SF

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