Synopsis for Lake Superior
.SYNOPSIS...30.3 INCH HIGH PRESSURE CENTERED OVER THE LOWER GREAT 
LAKES TONIGHT WILL EXIT TO THE MID ATLANTIC STATES BY SATURDAY 
MORNING AT 30.5 INCHES. A WEAK 30.1 INCH TROUGH WILL BRUSH EASTERN 
LAKE SUPERIOR SATURDAY AS IT TRACKS SOUTHEASTWARD OVER ONTARIO. A 
30.2 INCH RIDGE WILL RETURN TO THE GREAT LAKES SATURDAY NIGHT INTO
SUNDAY. EXPECT 29.8 INCH LOW PRESSURE OVER THE CENTRAL AND SOUTHERN
PLAINS SUNDAY MORNING TO DEEPEN TO AROUND 29.7 INCHES ACROSS SOUTHERN
MINNESOTA AND IOWA BY DAYBREAK MONDAY...AND 29.6 INCHES OVER WESTERN
LAKE SUPERIOR DURING THE DAYTIME HOURS MONDAY. THIS LOW WILL MERGE
WITH A 29.6 INCH LOW PUSHING ACROSS CENTRAL CANADA MONDAY NIGHT AND
THEN LINGER ACROSS WESTERN LAKE SUPERIOR THROUGH TUESDAY. ON
WEDNESDAY MORNING THE LOW WILL BE SOUTH OF JAMES BAY AND WILL TRACK
NORTHEAST INTO QUEBEC ON WEDNESDAY AFTERNOON.

Synopsis for Lake Michigan
.SYNOPSIS...HIGH PRESSURE OF 30.3 INCHES CENTERED ACROSS LAKE
MICHIGAN WILL MOVE TO THE ATLANTIC COAST ON SATURDAY. LOW
PRESSURE OF 29.5 INCHES WILL MOVE FROM THE CENTRAL PLAINS ON
MEMORIAL DAY TO NEAR LAKE SUPERIOR BY TUESDAY...LIKELY BRINGING A
COLD FRONT ACROSS THE LAKE SOMETIME ON OR NEAR TUESDAY. ANOTHER
LOW PRESSURE SYSTEM COULD PASS NEAR THE SOUTHERN PORTION OF THE
LAKE ON WEDNESDAY.

Synopsis for Lake Huron
.SYNOPSIS...HIGH PRESSURE OVER LOWER MICHIGAN...30.30 INCHES...WILL 
STRENGTHEN TO 30.40 INCHES SATURDAY AS IT MOVES TOWARD THE ATLANTIC 
COAST. HIGH PRESSURE WILL REMAIN IN CONTROL THROUGH MOST OF SUNDAY 
BEFORE A WARM FRONT LIFTS NORTHWARD OVER THE REGION DURING SUNDAY 
NIGHT AND MONDAY.

Synopsis for Lake Erie
.SYNOPSIS...HIGH PRESSURE 30.20 INCHES OVER THE CENTRAL GREAT
LAKES WILL MOVE TO CENTRAL PENNSYLVANIA OVERNIGHT AND STRENGTHEN
TO 30.50 INCHES. THE HIGH WILL MOVE TO THE EAST COAST SATURDAY AND
THEN MOVE OFFSHORE SUNDAY BUT CONTINUE TO EXTEND A RIDGE WEST TO
THE COAST INTO TUESDAY. LOW PRESSURE 29.70 INCHES WILL MOVE INTO
THE CENTRAL PLAINS SUNDAY AND REACH LAKE SUPERIOR BY TUESDAY.

Synopsis for Lake Ontario
.SYNOPSIS... A 30.3 INCH HIGH OVER THE UPPER GREAT LAKES WILL SETTLE 
SOUTH ACROSS LOWER MICHIGAN TONIGHT BEFORE CROSSING THE MID
ATLANTIC STATES SATURDAY. THE HIGH WILL BECOME ANCHORED OFF THE
MID ATLANTIC COAST SATURDAY NIGHT THROUGH TUESDAY.