NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
8:53 AM Tuesday July 22
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, HIGH PRESSURE OF 302 INCHES LIES NEAR THE MID ATLANTIC COAST THIS MORNING WHILE LOW PRESSURE OF 296 INCHES LIES OVER NORTHERN LAKE SUPERIOR.W2 THE LOW WILL DEEPEN TO 295 INCHES AND MOVE INTO QUEBEC TUESDAY NIGHT WHILE DRAGGING A COLD FRONT ACROSS LAKE MICHIGAN.W2 HIGH PRESSURE OF 302 INCHES WILL BUILD ACROSS THE UPPER MIDWEST WEDNESDAY, THEN MOVE TO THE MID OHIO VALLEY BY FRIDAY.W2 LMZ261-362-364-366-563-565-567-868-222145.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 to 30 knots becoming southwest late afternoon.W2 occasional gale force gusts to 35 knots possible.W2 patchy fog through late morning.W2 slight chance of showers and thunderstorms this morning, then chance of showers and thunderstorms early this afternoon.W2 showers and thunderstorms likely late afternoon.W2 waves 3 to 5 feet occasionally to 7 feet building to 6 to 9 feet occasionally to 11 feet.W2 tonight, northwest winds to 30 knots becoming north 20 to 25 knots.W2 chance of showers and thunderstorms, mainly in the evening.W2 waves subsiding to 4 to 7 feet occasionally to 9 feet.W2 wednesday, north winds 15 to 25 knots.W2 waves subsiding to 3 to 5 feet occasionally to 7 feet.W2 wednesday night, northwest winds 10 to 15 knots.W2 waves subsiding to 1 to 3 feet.W2 thursday, west winds 5 to 10 knots becoming southwest 10 to 15 knots.W2 waves 1 to 3 feet.W2 thursday night, southwest winds 10 to 15 knots.W2 waves 1 to 2 feet.W2 friday, southwest winds 10 to 15 knots.W2 waves 1 to 2 feet.W2 saturday, south winds 10 to 15 knots.W2 chance of showers and thunderstorms.W2 waves 1 to 3 feet.W2