HAWAII EXTENDED FORECAST DISCUSSION NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 819 AM EDT FRI OCT 18 2013 VALID 00Z SAT OCT 19 2013 - 00Z SAT OCT 26 2013 GUIDANCE REASONABLY AGREES WITH THE LARGER SCALE FLOW EVOLUTION OVER MUCH OF THE NEXT WEEK. A FAVORED COMPOSITE SOLUTION CONTINUES TO INDICATE THAT CLOSED TROUGH/LOW DEVELOPMENT TO THE NORTH/NORTHEAST OF THE HAWAIIAN ISLANDS OVER THE NEXT COUPLE OF DAYS WILL FORCE SOME COLD FRONTAL SURGE FOCUSING SHOWERS ACROSS THE STATE. SMALLER SCALE SPECIFICS ARE LESS CERTAIN...BUT MID-UPPER SYSTEM INFLUENCE WILL LINGER INTO THE WEEKEND BEFORE LEADING INTO A POST-FRONTAL DRIER ISLAND TRADE PATTERN IN THE WAKE OF SYSYEM EJECTION AS HIGH PRESSURE BECOME ESTABLISHED TO THE NORTH OF THE STATE NEXT WEEK. SCHICHTEL