Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 351 AM EDT Sat Jul 03 2021 Valid 00Z Sun Jul 04 2021 - 00Z Sun Jul 11 2021 A subtropical ridge north of the Islands strengthens and expands as it shifts westward through Wednesday. Trade winds increase to moderate levels today, then ease a bit tonight and persist through the week ahead. This moist trade flow maintains windward terrain/mountain focusing showers through next week. Jackson