Synopsis for Lake Superior
.SYNOPSIS...EXPECT A LOW PRESSURE TROUGH AVERAGING 29.7 INCHES TO
LINGER OVER THE NORTHWEST GREAT LAKES INTO TUESDAY. A 29.3 INCH 
LOW PRESSURE DEVELOPING OVER THE CENTRAL PLAINS ON TUESDAY WILL 
REACH LOWER MICHIGAN ON WEDNESDAY. ALTHOUGH THIS LOW WILL 
DISSIPATE ON THURSDAY AS IT MOVES INTO QUEBEC...A LOW PRESSURE 
TROUGH AVERAGING 29.8 INCHES WILL LINGER OVER THE UPPER GREAT 
LAKES TO THE EAST OF A 30.4 INCH HIGH PRESSURE RIDGE BUILDING INTO
THE WESTERN PLAINS. THE TROUGH OVER THE UPPER GREAT LAKES ON 
FRIDAY WILL WEAKEN TO 29.9 INCHES AS THE PLAINS HIGH PRESSURE 
SHIFTS TOWARD THE LOWER MISSISSIPPI RIVER VALLEY.

Synopsis for Lake Michigan
.SYNOPSIS...STRONG LOW PRESSURE OF 29.2 INCHES ALONG THE ATLANTIC
COAST WILL SHIFT OFF THE MID ATLANTIC REGION TONIGHT. THE LOW
WILL THEN SLOWLY LIFT NORTH TO THE NEW ENGLAND COAST BY TUESDAY
NIGHT. IN THE MEAN TIME, A WEAK RIDGE OF HIGH PRESSURE AVERAGING
29.9 INCHES WILL BUILD ACROSS THE MIDDLE AND UPPER MISSISSIPPI
VALLEY LATE TODAY AND THE CONTINUE EAST ACROSS LAKE MICHIGAN
TUESDAY. LOW PRESSURE OF 29.3 INCHES WILL DROP OUT OF THE CENTRAL
ROCKIES LATE TONIGHT AND TRACK ACROSS SOUTHERN WISCONSIN TUESDAY
NIGHT OR EARLY WEDNESDAY AND THEN PROCEED NORTHEAST ACROSS CENTRAL
LAKE MICHIGAN WEDNESDAY. THE LOW IS EXPECTED TO LIFT NORTHEAST TO
LAKE HURON WEDNESDAY NIGHT.

Synopsis for Lake Huron
.SYNOPSIS...A TROUGH OF LOW PRESSURE AVERAGING 29.70 INCHES WILL
REMAIN OVER THE GREAT LAKES TODAY BEFORE WEAK HIGH PRESSURE SETTLES
OVER THE REGION TONIGHT THROUGH TUESDAY. THE NEXT LARGER LOW
PRESSURE SYSTEM AT 29.40 INCHES WILL MOVE IN FROM THE PLAINS TUESDAY
NIGHT THROUGH WEDNESDAY. COLDER NORTHWEST WIND NEAR GALES WILL
DEVELOP OVER MARINE AREAS BEHIND THIS SYSTEM BY THURSDAY BEFORE
DIMINISHING FRIDAY INTO NEXT WEEKEND.

Synopsis for Lake Erie
.SYNOPSIS...LOW PRESSURE 29.20 INCHES IN NORTH CAROLINA WILL MOVE
OFF THE MID ATLANTIC COAST TONIGHT. A RIDGE AVERAGING 29.80 INCHES
WILL PUSH EAST ACROSS LAKE ERIE TUESDAY. LOW PRESSURE 29.30
INCHES WILL MOVE NORTHEAST ACROSS THE CENTRAL GREAT LAKES
WEDNESDAY PULLING A TRAILING COLD FRONT ACROSS LAKE ERIE
WEDNESDAY. A TROUGH AVERAGING 29.50 INCHES WILL LINGER ACROSS THE
GREAT LAKES THURSDAY AND FRIDAY.

Synopsis for Lake Ontario
.SYNOPSIS...A 30.4 INCH HIGH WILL CONTINUE TO SLOWLY DRIFT EAST
OF HUDSON BAY ACROSS QUEBEC THROUGH TUESDAY. MEANWHILE A STRONG
LOW WILL MOVE NORTHEAST TO NEAR THE DELMARVA TONIGHT WHILE
DEEPENING TO 29.2 INCHES. THIS LOW WILL THEN MOVE NORTH ALONG THE
EAST COAST TO THE GULF OF MAINE BY WEDNESDAY MORNING. HIGH
PRESSURE WILL BRIEFLY RIDGE ACROSS THE LAKE ON WEDNESDAY...THEN A
29.3 INCH LOW IS FORECAST TO TRACK FROM THE CENTRAL GREAT LAKES
INTO QUEBEC WEDNESDAY NIGHT AND THURSDAY.