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 WAVES ARE PROVIDED AS A RANGE OF SIGNIFICANT WAVE HEIGHTS...WHICH  IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES...ALONG  WITH THE AVERAGE HEIGHT OF THE HIGHEST 10 PERCENT OF THE WAVES  WHICH WILL OCCASIONALLY BE ENCOUNTERED.    SYNOPSIS  HIGH PRESSURE OF 30.4 INCHES EXTENDS FROM NORTHERN  QUEBEC THROUGH THE WESTERN GREAT LAKES AND WILL CONTINUE TO BUILD  OVER THE REGION THROUGH WEDNESDAY. AS THE RIDGE MOVES TO THE EAST  OF THE LAKE WEDNESDAY NIGHT...A TROUGH OF LOW PRESSURE AVERAGING  29.9 INCHES WILL CROSS THE CENTRAL PLAINS...REACHING THE UPPER  MISSISSIPPI VALLEY BY THURSDAY MORNING. THIS WILL SET UP A  STRENGTHENING SOUTHERLY GRADIENT OVER THE LAKE. WINDS WILL REMAIN  GENERALLY SOUTHERLY UNTIL AN ASSOCIATED WEAK COLD FRONT PUSHES  ACROSS THE LAKE THURSDAY NIGHT.          LMZ761-221015-  MAFOR 2203/  MICHIGAN NORTH 11120 11210 11310 14300 11410. WAVES 3 TO 5 FT  OCCASIONALLY TO 7 FT TONIGHT. WAVES 1 TO 3 FT WEDNESDAY AND  WEDNESDAY EVENING.    MICHIGAN SOUTH 11820 11110 13210 12100 11310. WAVES 4 TO 7 FT  OCCASIONALLY TO 9 FT TONIGHT. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 2  FT IN THE AFTERNOON.    $$

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