Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 249 AM EST Fri Mar 08 2024 Valid 00Z Sat Mar 09 2024 - 00Z Sat Mar 16 2024 High pressure settling to the north-northwest of the state through the weekend will maintain brisk to strong trades that will focus showers over windward/mountain terrain, but nothing too significant in terms of rainfall totals as an upper trough over the state is weakening. This general pattern should hold through the weekend before the guidance shows energy to the west/southwest of the islands should consolidate into an upper low which tracks over Hawaii early next week. There are plenty of lingering uncertainties in the details, but models do show some general agreement that precipitable water values and rainfall should increase in association with this upper low. Meanwhile, the surface high to the north will accelerate eastward in response to a cold front and deepening trough moving in from the west. This should lead to some slack in the trade winds, but some brisk northerly winds should spread across the islands from west to east following the frontal passage mid to later next week. Santorelli