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 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. LSZ266-221700- LAKE SUPERIOR EAST OF A LINE FROM MANITOU ISLAND TO MARQUETTE MI AND WEST OF A LINE FROM GRAND MARAIS MI TO THE US/CANADIAN BORDER BEYOND 5NM FROM SHORE- 351 AM EST SUN NOV 22 2009 EARLY THIS MORNING SOUTH WINDS 15 TO 25 KNOTS. PATCHY FOG. WAVES 3 TO 5 FEET. TODAY SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 25 KNOTS IN THE AFTERNOON. PATCHY FOG IN THE MORNING. WAVES BUILDING TO 4 TO 7 FEET. TONIGHT SOUTH WINDS 20 TO 25 KNOTS DIMINISHING TO 15 TO 25 KNOTS AFTER MIDNIGHT. WAVES 4 TO 7 FEET. MONDAY SOUTH WINDS 10 TO 20 KNOTS BACKING SOUTHEAST IN THE AFTERNOON. WAVES SUBSIDING TO 2 TO 4 FEET. MONDAY NIGHT SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO 1 TO 3 FEET...THEN BUILDING TO 2 TO 4 FEET. TUESDAY SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO 1 TO 3 FEET. TUESDAY NIGHT SOUTHEAST WINDS 10 TO 20 KNOTS BACKING EAST AFTER MIDNIGHT. A CHANCE OF RAIN. WAVES SUBSIDING TO CALM TO 2 FEET. WEDNESDAY NORTHEAST WINDS 15 TO 25 KNOTS BECOMING NORTH 20 TO 30 KNOTS. RAIN AND SNOW LIKELY. WAVES BUILDING TO 9 TO 12 FEET. THURSDAY NORTH GALES TO 35 KNOTS BECOMING NORTHWEST 20 TO 30 KNOTS. RAIN AND SNOW LIKELY...THEN A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 8 TO 11 FEET...THEN BUILDING TO 10 TO 14 FEET. $$
