NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
8:48 AM Monday September 1
W2 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.W2 SYNOPSIS, LOW PRESSURE OF 294 INCHES OVER WESTERN ONTARIO WILL MOVE NORTHEAST TO JAMES BAY BY THIS EVENING, WHILE DEEPENING TO 291 INCHES.W2 A TRAILING COLD FRONT WILL MOVE ACROSS THE LAKE TONIGHT.W2 A WEAK AREA OF HIGH PRESSURE OF 300 INCHES WILL MOVE ACROSS ILLINOIS AND INDIANA ON TUESDAY, THEN CONTINUE EAST INTO THE UPPER OHIO VALLEY AND EASTERN LAKES BY WEDNESDAY.W2 ANOTHER LOW AROUND 295 INCHES WILL DEVELOP OVER THE NORTHERN PLAINS ON WEDNESDAY, THEN MOVE NORTHEAST INTO ONTARIO WEDNESDAY AND THURSDAY.W2 THIS SYSTEM WILL DRIVE ANOTHER, STRONGER COLD FRONT ACROSS LAKE MICHIGAN ON FRIDAY.W2 LMZ261-362-364-366-563-565-567-868-012000.W2 LAKE MICHIGAN FROM SEUL CHOIX POINT TO ROCK ISLAND PASSAGE 5 NAUTICAL MILES OFFSHORE TO MID LAKE.W2 LAKE MICHIGAN SOUTH OF A LINE FROM SEUL CHOIX POINT TO THE MACKINAC BRIDGE AND NORTH OF A LINE FROM CHARLEVOIX MI TO SOUTH FOX ISLAND 5 NAUTICAL MILES OFFSHORE.W2 LAKE MICHIGAN FROM CHARLEVOIX TO POINT BETSIE MI 5 NAUTICAL MILES OFFSHORE TO MID LAKE.W2 LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NAUTICAL MILES OFFSHORE TO MID LAKE.W2 LAKE MICHIGAN FROM ROCK ISLAND PASSAGE TO STURGEON BAY WI.W2 LAKE MICHIGAN FROM STURGEON BAY TO TWO RIVERS WI 5 NAUTICAL MILES OFFSHORE TO MID LAKE.W2 LAKE MICHIGAN FROM TWO RIVERS TO SHEBOYGAN WI 5 NAUTICAL MILES OFFSHORE TO MID LAKE.W2 LAKE MICHIGAN FROM PENTWATER TO MANISTEE MI 5 NAUTICAL MILES OFFSHORE TO MID LAKE.W2 sheboygan wi to pentwater mi north rest of today, south winds 15 to 25 knots becoming southwest.W2 occasional gusts to 30 knots possible.W2 showers likely with a chance of thunderstorms this afternoon.W2 waves 4 to 6 feet occasionally to 8 feet.W2 tonight, west winds 15 to 25 knots diminishing to 10 to 15 knots.W2 chance of showers and thunderstorms through early evening, then slight chance of showers and thunderstorms late in the evening.W2 waves 4 to 6 feet occasionally to 8 feet subsiding to 2 to 4 feet overnight.W2 tuesday, west winds 10 to 15 knots becoming southwest.W2 chance of showers.W2 waves 1 to 2 feet.W2 tuesday night, southwest winds 10 to 15 knots.W2 waves 1 to 2 feet.W2 wednesday, southwest winds 15 to 25 knots.W2 waves building to 3 to 5 feet occasionally to 7 feet.W2 wednesday night, south winds 15 to 25 knots.W2 chance of showers and thunderstorms.W2 waves 4 to 6 feet occasionally to 8 feet.W2 thursday, south winds 15 to 25 knots.W2 chance of showers and thunderstorms.W2 waves 4 to 6 feet occasionally to 8 feet.W2 friday, west winds 15 to 25 knots becoming northwest.W2 chance of showers and thunderstorms.W2 waves 3 to 5 feet occasionally to 7 feet.W2