Synopsis for Lake Superior
.SYNOPSIS...30.3 INCH HIGH PRESSURE CENTERED OVER CENTRAL UPPER 
MICHIGAN TONIGHT WILL DRIFT SLOWLY SOUTHEAST INTO THE LOWER GREAT 
LAKES ON SATURDAY AND THEN INTO THE MID ATLANTIC STATES ON SUNDAY. 
MEANWHILE...A 29.2 INCH LOW PRESSURE SYSTEM TRACKING ACROSS ONTARIO 
ON SUNDAY WILL DRAG A TROUGH ACROSS THE UPPER GREAT LAKES. IN ITS 
WAKE...EXPECT A 30.0 INCH HIGH PRESSURE RIDGE TO PASS ACROSS THE 
UPPER GREAT LAKES ON MONDAY. ANOTHER 29.7 INCH LOW PRESSURE WILL 
THEN TRACK SOUTHEASTWARD ACROSS THE GREAT LAKES REGION MONDAY NIGHT 
THROUGH TUESDAY. A BRIEF 30.0 INCH HIGH PRESSURE RIDGE WILL FOLLOW 
THIS LOW THROUGH EARLY WEDNESDAY...WHILE A 29.2 INCH LOW MOVES 
ACROSS LAKE SUPERIOR ON WEDNESDAY EVENING.

Synopsis for Lake Michigan
.SYNOPSIS...A 30.3 INCH HIGH STRETCHES FROM THE SOUTHERN PLAINS
THROUGH THE UPPER MIDWEST AND IT WILL SHIFT OVER THE LAKE THIS
EVENING. THE HIGH SINKS SOUTHEAST OVER THE OHIO VALLEY SATURDAY
EVENING WHILE A 29.4 INCH LOW MOVES OVER WESTERN ONTARIO. THE LOW
REACHES EASTERN QUEBEC AND ITS COLD FRONT SWINGS OVER THE LAKE
SUNDAY EVENING. A WEAK SURFACE RIDGE AVERAGING 30.1 INCHES QUICKLY
SCOOTS OVER THE LAKE MONDAY AFTERNOON AND EVENING WITH A 29.7 INCH
LOW SLIDING OVER THE LAKE TUESDAY MORNING.

Synopsis for Lake Huron
.SYNOPSIS...SURFACE TROUGH BISECTING LAKES HURON AND MICHIGAN HAS AN 
AVERAGE PRESSURE OF 30.03 INCHES. HIGH PRESSURE AVERAGING 30.33 
INCHES WILL BUILD ACROSS THE GREAT LAKES SATURDAY...REPLACED BY LOW 
PRESSURE AND A COLD FRONT MID-DAY SUNDAY.

Synopsis for Lake Erie
.SYNOPSIS...HIGH PRESSURE 30.30 INCHES ACROSS THE NORTHERN LAKES
WILL SHIFT TO THE OHIO VALLEY FOR SATURDAY. LOW PRESSURE 29.30
INCHES WILL MOVE EAST ACROSS CENTRAL ONTARIO TO NEW ENGLAND
BETWEEN SUNDAY NIGHT AND MONDAY. A COLD FRONT TRAILING FROM THE
LOW WILL MOVE EAST ACROSS LAKE ERIE SUNDAY EVENING. HIGH PRESSURE
30.20 INCHES WILL REMAIN SOUTH OF THE LAKE MONDAY. LOW PRESSURE
29.70 INCHES WILL MOVE ACROSS THE GREAT LAKES TUESDAY. HIGH
PRESSURE 30.20 INCHES WILL MOVE ACROSS THE LAKE WEDNESDAY.

Synopsis for Lake Ontario
.SYNOPSIS...A COLD FRONT WILL CONTINUE SOUTH ACROSS NYS THIS
TONIGHT. A LARGE 30.4 INCH HIGH OVER THE NORTHERN PLAINS WILL
BUILD ACROSS THE UPPER GREAT LAKES BEFORE SETTLING ACROSS THE OHIO
VALLEY SATURDAY. A COMPACT 29.1 INCH LOW WILL CROSS THE UPPER
LAKES SUNDAY THEN TRACK NORTH OF LAKE ONTARIO MONDAY. ANOTHER
SYSTEM WILL MOVE ACROSS THE REGION ON TUESDAY.