Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 754 AM EDT Wed Mar 20 2019 Valid 00Z Thu Mar 21 2019 - 00Z Thu Mar 28 2019 Upper ridging and above average heights will slowly slide eastward along 20N during the next week with troughing to its north and the northeast. Heights may lower by the end of the period next Wed. The tail end of a frontal system will stall and dissipate just north of the area late Thu through the weekend as trades increase for Friday until perhaps next Tue due to strong high pressure to the north. Precipitable water values likely stay below average with values near one inch with scattered windward/mauka showers that may spill over to leeward areas. Models/ensembles were in good synoptic agreement through the period. Fracasso