Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 829 AM EDT Wed Oct 05 2016 Valid 00Z Thu Oct 06 2016 - 00Z Thu Oct 13 2016 ...A Wet Short Term Pattern for Hawaii... High pressure to the northeast of Hawaii should support moderate island trades into Thursday. Meanwhile, precipitable water values upwards to 2" or 3 standard deviations above normal are in place over the Big Island where WFO Honolulu has issued a flash flood watch due to the potential for locally excessive rainfall that lingers into Thursday with shortwave trough passage. A flash flood watch and flood advisory have also been issued for Maui as per recent heavy rainfall and additional rain threat. Rainfall should then trend lighter heading into the weekend as precipitable water values decrease to 1.25-1.50 inches and perhaps briefly lower. An elongating surface ridge near 30N latitude, containing one or more individual highs, will likely support a return to moderate to brisk trades and greater windward focus for any shower activity, with some potential for better moisture rebound early next week with possible disturbance passage to the south of the islands. Tightening gradients could bump winds. Schichtel