NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
9:55 AM Thursday December 18
W2 OCCASIONAL WAVE HEIGHT IS THE AVERAGE OF THE HIGHEST 1/10 OF THE WAVE SPECTRUM.W2 SYNOPSIS, A WEAK SURFACE TROUGH, AVERAGING 3020 INCHES, WILL MOVE THROUGH THE CENTRAL GREAT LAKES, BRINGING SNOW SHOWERS TO THE AREA BEFORE EXITING TODAY.W2 WINDS WILL GRADUALLY SLACKEN AS HIGH PRESSURE, AVERAGING 3030 INCHES, BUILDS OVER THE REGION AND HOLDS THROUGH THE WEEKEND.W2 LCZ460-182115.W2 LAKE ST CLAIR.W2 rest of today, northwest winds 5 to 10 knots.W2 cloudy.W2 patchy light freezing drizzle late in the morning.W2 scattered flurries late in the morning.W2 waves 2 feet or less.W2 tonight, northwest winds 5 to 10 knots.W2 mostly cloudy.W2 waves 2 feet or less.W2 friday, north winds 5 to 10 knots.W2 partly sunny.W2 waves 2 feet or less.W2 friday night, light and variable winds, becoming northwest 5 to 10 knots by late evening, then becoming light and variable late.W2 mostly clear.W2 waves 2 feet or less.W2 saturday, light and variable winds.W2 partly cloudy.W2 waves nearly calm.W2 sunday, southeast winds 5 to 10 knots.W2 partly cloudy.W2 waves nearly calm.W2 monday, southeast winds 5 to 10 knots.W2 mostly cloudy.W2 a chance of light showers.W2 waves 2 feet or less.W2