Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 729 AM EST Sun Feb 22 2015 Valid 00Z Mon Feb 23 2015 - 00Z Mon Mar 02 2015 A trailing surface front with modest moisture/shower focus should continue to gradually rescede and diminish today leading into a period of drier trade flow. Pacific flow amplification should meanwhile slow the upstream mid-upper level trough developments to the northwest of the islands, but model and ensemble forecast spread and uncertainty remains below normal in the pattern. A favored guidance composite continues to indicates that an associated frontal system advances to the state Friday into next weekend leading to lead pooled moisture and organized showers working more ernestly into the islands in an increasingly wet pattern. This occurs as an amplified downstream mid-upper level ridge settles to the northeast of the Hawaiian Islands. This ridge becomes undercut by a lower latitide closed low that guidance shows should prove slow to approach the Big Island from the east-southeast late week. Schichtel