Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 712 AM EST Tue Dec 15 2015 Valid 00Z Wed Dec 16 2015 - 00Z Wed Dec 23 2015 Lingering moisture over the next 24 hours may support some scattered showers in weakened flow. A favored composite of reasonably well clustered guidance indicates that high pressure then bridging to the north of the state will allow trades to build over the next couple of days leading to brisk flow through early next week. This will favor a more limited moisture pattern with windward terrain based showers, but a weak boundary sagging southward toward the state this weekend may feed a few showers. Ridge amplification aloft to the north of the islands then allows potential for some mid-upper level troughing to work underneath closer to the state early next week that could pull in deeper moisture from the southeast to fuel some Big Island downpours. Schichtel