NZUS99 KDTX 041256 SYNGLF .SYNOPSIS... A WEAK AREA OF LOW PRESSURE...30.10 INCHES...WILL TRAVERSE THE CENTRAL GREAT LAKES REGION TODAY AND LEAVE A FRONTAL BOUNDARY STALLED OVER THE AREA TONIGHT. THIS FRONT WILL REMAIN NEARLY STATIONARY THROUGH THE WEEKEND...AS A SPRAWLING HIGH PRESSURE SYSTEM BUILDS EAST ACROSS SOUTHERN CANADA.