Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 240 AM EDT Sun Sep 17 2023 Valid 00Z Mon Sep 18 2023 - 00Z Mon Sep 25 2023 High pressure holding strong to the north of Hawaii through the next week should keep a fairly normal trade wind pattern in place, with some variability in speeds, especially next weekend as high pressure strengthens well to the north. Showers will tend to focus over windward/mountain areas but could extend over some leeward locations as trade winds briefly increase today into Monday and as a pocket of slightly enhanced moisture moves into the region. Santorelli