PDA Weather/Marine Page URL: mobile.weather.gov
SYNOPSIS A HIGH PRESSURE AREA OF 30.3 INCHES CENTERED NORTH OF LAKE ONTARIO WILL CONTINUE TO INFLUENCE THE UPPER GREAT LAKES THROUGH TONIGHT. LOW PRESSURE OF 29.3 INCHES MOVING OUT OF THE CANADIAN PRAIRIES AND ON ITS WAY TO NORTHERN HUDSON BAY ON MONDAY...WILL ALLOW FOR SOUTHERLY WINDS TO PERSIST OVER LAKE SUPERIOR AT LEAST THROUGH MONDAY. BY TUESDAY A LOW PRESSURE SYSTEM OF 29.7 INCHES WILL MOVE OUT OF THE CENTRAL PLAINS AND CROSS THE MACKINAC STRAITS WEDNESDAY NIGHT BEFORE MOVING SLOWLY TOWARD NEW ENGLAND ON THURSDAY. LSZ265-222300- LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI BEYOND 5NM FROM SHORE- 951 AM EST SUN NOV 22 2009 REST OF TODAY SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30 KNOTS IN THE AFTERNOON. WAVES 2 TO 4 FEET BUILDING TO 3 TO 5 FEET. TONIGHT SOUTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET. MONDAY SOUTH WINDS 10 TO 20 KNOTS BACKING SOUTHEAST IN THE AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET. MONDAY NIGHT SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET. TUESDAY SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET. TUESDAY NIGHT SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST AFTER MIDNIGHT. A CHANCE OF RAIN. WAVES CALM TO 2 FEET. WEDNESDAY NORTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTH 15 TO 25 KNOTS. RAIN AND SNOW LIKELY. WAVES BUILDING TO 8 TO 11 FEET. THURSDAY NORTH WINDS 20 TO 30 KNOTS BECOMING NORTHWEST 15 TO 25 KNOTS. RAIN AND SNOW LIKELY...THEN A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 9 TO 12 FEET...THEN SUBSIDING TO 5 TO 8 FEET. $$
