NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
8:54 PM Friday August 29
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 298 INCHES LIES OVER THE NORTHERN PLAINS THIS EVENING AND WILL MOVE ACROSS THE GREAT LAKES SATURDAY INTO SUNDAY, DRAGGING A COLD FRONT WHICH WILL REACH THE SOUTH END OF LAKE MICHIGAN BY EARLY SUNDAY.W2 HIGH PRESSURE OF 300 INCHES WILL BRIEFLY BUILD OVER THE NORTHERN LAKES BEHIND THE FRONT, WHILE ANOTHER LOW OF 295 INCHES DEVELOPS OVER THE NORTHERN PLAINS.W2 THIS LOW WILL DEEPEN TO 293 INCHES AS IT REACHES HUDSON BAY LATE MONDAY.W2 LMZ261-362-364-366-563-565-567-868-300930.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 tonight, south winds to 30 knots.W2 showers and thunderstorms likely.W2 waves 4 to 7 feet occasionally to 9 feet.W2 saturday, southwest winds 15 to 25 knots.W2 showers and thunderstorms likely.W2 waves 4 to 7 feet occasionally to 9 feet.W2 saturday night, west winds 15 to 20 knots becoming northwest.W2 chance of showers.W2 waves 3 to 5 feet occasionally to 7 feet.W2 sunday, northwest winds around 10 knots backing to the south.W2 waves 2 to 4 feet.W2 sunday night, south winds 5 to 10 knots increasing to 15 to 25 knots overnight.W2 slight chance of showers and thunderstorms overnight.W2 waves 3 to 5 feet occasionally to 7 feet.W2 monday, southwest winds to 30 knots.W2 showers and thunderstorms likely in the morning, then chance of showers and thunderstorms in the afternoon.W2 waves 4 to 7 feet occasionally to 9 feet.W2 monday night, west winds 15 to 25 knots.W2 slight chance of showers and thunderstorms.W2 waves 4 to 7 feet occasionally to 9 feet subsiding to 3 to 5 feet occasionally to 7 feet overnight.W2 tuesday, southwest winds 10 to 15 knots.W2 slight chance of showers and thunderstorms.W2 waves 1 to 3 feet.W2 wednesday, southwest winds 10 to 20 knots.W2 waves 1 to 3 feet.W2