Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 326 AM EDT Mon Mar 31 2025 Valid 00Z Tue 01 Apr 2025 - 00Z Tue 08 Apr 2025 An upper ridge over Hawaii should briefly retreat eastward as a deep upper low develops north of the state within an overall blocky pattern. The cold front for this system will approach and swing through the northern islands allowing for strengthening southerly winds and some increased precipitation chances. Guidance shows the heaviest precipitation should remain west of the island chain though. As the upper low lifts northward late this week, surface high pressure may again move in north of the state allowing for a more typical trade wind pattern. Santorelli