Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 824 AM EDT Thu Mar 21 2019 Valid 00Z Fri Mar 22 2019 - 00Z Fri Mar 29 2019 Upper ridging and above average heights will slowly slide eastward along 20N over the next week with troughing to its north and the northeast eventually making its way toward Hawai'i. A frontal system will stall and dissipate just north of the area (or near Kauai) through the weekend as trades increase late tomorrow through 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 and generally light accumulations. Models/ensembles were in good synoptic agreement through about next Wednesday before timing differences in the next upper trough expand. The 00Z GFS/ECMWF represent a reasonable blended solution near the ensemble consensus with a front that may approach Kauai from the northwest by late Wednesday/early Thursday. Fracasso