Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 716 AM EST Sat Jan 14 2017 Valid 00Z Sun Jan 15 2017 - 00Z Sun Jan 22 2017 Ensembles remain in very good agreement through next Friday and show strengthening upper ridging building into and through the region early next week. This should maintain a relatively dry pattern for Hawai'i with an increase in trades next week as surface pressures (and the gradient itself) increase to the north. By next Saturday, ensembles indicate troughing to the northwest of the region which may support a shear line or weak front nearing the area. The recent GFS/Canadian runs were more aggressive/quicker than the ECMWF. The GEFS/ECENS means were nicely in the middle and are the preferred solution by then given the rather complicated Pacific flow in the interim. Fracasso