NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
2:59 PM Tuesday October 21
W2.CORRECTED NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL for waters beyond five nautical miles of shore on lake michigan.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 over western new york will merge with another low of 298 inches near the delmarva area tonight, and rapidly deepen wednesday night and thursday to 294 inches just south of cape cod.W2 this low will then track northeast to nova scotia by saturday morning.W2 meanwhile, high pressure of 303 inches centered over the southern tip of james bay, with a ridge of high pressure averaging 301 inches extending through the middle mississippi valley, will slowly build east.W2 as the ridge moves to the east of the lake wednesday night, a trough of low pressure averaging 299 inches will cross the central plains, reaching the upper mississippi valley by thursday morning.W2 this will set up a strengthening southerly gradient over the lake.W2 winds will remain generally southerly until an associated weak cold front pushes across the lake thursday night.W2 lmz261-362-364-366-563-565-567-868-220345- lake michigan from seul choix point to rock island passage 5 nautical miles offshore to mid lake- 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- lake michigan from charlevoix to point betsie mi 5 nautical miles offshore to mid lake- lake michigan from point betsie to manistee mi 5 nautical miles offshore to mid lake- lake michigan from rock island passage to sturgeon bay wi- lake michigan from sturgeon bay to two rivers wi 5 nautical miles offshore to mid lake- lake michigan from two rivers to sheboygan wi 5 nautical miles offshore to mid lake- lake michigan from pentwater to manistee mi 5 nautical miles offshore to mid lake- 2:59 pm tuesday october 21 sheboygan wi to pentwater mi north tonight, northeast winds 10 to 20 knots becoming east 10 to 15 knots.W2 waves 4 to 7 feet occasionally to 9 feet subsiding to 2 to 4 feet.W2 wednesday, southeast winds 5 to 10 knots.W2 waves 1 to 3 feet subsiding to 1 to 2 feet in the afternoon.W2 wednesday night, south winds 10 to 20 knots.W2 waves 1 to 2 feet building to 1 to 3 feet overnight.W2 thursday, south winds 15 to 25 knots.W2 slight chance of showers in the afternoon.W2 waves 3 to 5 feet occasionally to 7 feet building to 4 to 6 feet occasionally to 8 feet in the afternoon.W2 thursday night, southwest winds 15 to 20 knots becoming west 10 to 20 knots.W2 chance of showers.W2 waves 4 to 6 feet occasionally to 8 feet.W2 friday, west winds 10 to 20 knots.W2 waves 2 to 4 feet.W2 friday night, west winds 10 to 20 knots.W2 waves 2 to 4 feet.W2 saturday, west winds 15 to 20 knots.W2 waves 2 to 4 feet.W2 sunday, southwest winds 10 to 15 knots becoming south 15 to 20 knots.W2 waves 1 to 3 feet.W2