Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 216 AM EDT Mon Sep 5 2022 Valid 00Z Tue Sep 6 2022 - 00Z Tue Sep 13 2022 The main axis of the subtropical high is expected to be centered roughly near 35 degrees north through Tuesday, and then a large high develops well to the northeast of Hawaii closer to 40-45 degrees north, but Hawaii will still be on the southern edge of this surface high. By Friday and next weekend, the ensemble means diverge on their solutions regarding the placement of an inverted trough axis well west of the state, with the GEFS mean closer to the western most Islands. Trades are generally expected to be from the east-northeast at 10-20 mph with occasionally higher gusts, with some weakening of the flow by the end of the week as the overall pressure gradient relaxes a bit. In terms of expected precipitation, nothing major or well organized is on the weather horizon, with mainly terrain enhanced showers on most days and the greatest coverage on the Big Island. Hamrick