Synopsis for Lake Superior
.SYNOPSIS...A 29.6 INCH LOW PRESSURE OVER NEBRASKA THIS MORNING WILL 
MOVE NORTHEAST ACROSS NORTHERN LOWER MICHIGAN ON TUESDAY NIGHT AND 
INTO SOUTHERN QUEBEC ON WEDNESDAY WHILE DEEPENING TO 29.2 INCHES. 
ALTHOUGH THE LOW WILL CONTINUE EAST INTO THE CANADIAN MARITIMES ON 
THURSDAY...A WEAK LOW PRESSURE TROUGH AVERAGING 30.1 INCHES WILL 
LINGER OVER THE UPPER GREAT LAKES. THEN EXPECT A 30.5 INCH HIGH 
PRESSURE CENTERED ACROSS MANITOBA ON THURSDAY TO SLIDE INTO THE OHIO 
RIVER VALLEY ON FRIDAY BUT EXTEND A RIDGE AVERAGING 30.4 INCHES INTO 
THE UPPER LAKES AND ONTARIO. THIS AREA OF HIGH PRESSURE WILL DRIFT 
TOWARD THE EAST COAST ON SATURDAY AS A 29.6 INCH LOW PRESSURE 
OVER SOUTH CENTRAL CANADA MOVES EAST TOWARD NORTHWEST ONTARIO.

Synopsis for Lake Michigan
.SYNOPSIS...LOW PRESSURE OF 29.6 INCHES OVER THE CENTRAL PLAINS 
WILL REACH SOUTHERN LAKE MICHIGAN AT 29.4 INCHES THIS 
EVENING...AND THEN REACH THE CENTRAL GREAT LAKES BY MIDDAY 
WEDNESDAY. THIS LOW WILL THEN DEEPEN TO 28.9 INCHES OVER NEW 
BRUNSWICK EARLY THURSDAY MORNING. A WEAK LOW AVERAGING 30.1 INCHES
WILL PASS SOUTH OF THE LAKE THURSDAY EVENING. HIGH PRESSURE RIDGE
OF 30.6 INCHES WILL SPREAD OVER THE WESTERN GREAT LAKES FRIDAY 
AND THEN CONTINUE TO THE EASTERN GREAT LAKES FRIDAY NIGHT INTO 
SATURDAY...WHILE LOW PRESSURE OF 29.5 INCHES LIFTS NORTHEAST TO 
MANITOBA AND ONTARIO SATURDAY NIGHT.

Synopsis for Lake Huron
.SYNOPSIS...HIGH PRESSURE OF 30.20 INCHES WILL CONTINUE TO SHIFT 
EAST OF THE REGION TODAY. MEANWHILE...LOW PRESSURE WILL DEEPEN TO 
29.30 INCHES AS IT TRACKS FROM THE MID MISSOURI VALLEY TODAY TO NEAR 
LAKE HURON BY EARLY TUESDAY MORNING. SURFACE TROUGHING WILL PERSIST 
ACROSS THE CENTRAL GREAT LAKES WEDNESDAY INTO WEDNESDAY NIGHT IN THE 
WAKE OF THE LOW PRESSURE SYSTEM. HIGH PRESSURE WILL THEN BUILD INTO 
THE REGION FROM THURSDAY INTO FRIDAY.

Synopsis for Lake Erie
.SYNOPSIS...LOW PRESSURE 29.60 INCHES FROM THE HIGH PLAINS WILL 
MOVE NORTHEAST AND DEEPEN TO 29.30 INCHES CROSSING THE GREAT 
LAKES EARLY WEDNESDAY. THE ASSOCIATED COLD FRONT WILL SWEEP 
ACROSS LAKE ERIE WEDNESDAY AFTERNOON AND EARLY EVENING. A WEAK 
SURFACE LOW 29.90 INCHES WILL MOVE EAST ACROSS LAKE ERIE THURSDAY 
EVENING. HIGH PRESSURE 30.50 INCHES FROM THE PLAINS STATES WILL 
CROSS THE OHIO VALLEY FRIDAY AND MOVE TO THE CAROLINAS BY 
SATURDAY.

Synopsis for Lake Ontario
.SYNOPSIS...A WARM FRONT WILL PUSH NORTHEASTWARD ACROSS THE LOWER
LAKES THIS AFTERNOON AND EVENING. A 29.6 INCH LOW IS THEN 
FORECAST TO TRACK FROM LAKE MICHIGAN TONIGHT TO SOUTHERN QUEBEC BY
WEDNESDAY AFTERNOON WHILE DEEPENING TO 29.1 INCHES. A STRONG COLD
FRONT TRAILING THIS LOW WILL CROSS THE LAKE WEDNESDAY AFTERNOON. 
THIS LOW WILL CONTINUE EAST INTO THE CANADIAN MARITIMES THURSDAY.