A high pressure ridge will build in over the region keeping shower activity more limited to windward and mountain areas, especially in the overnight to early morning hours.

Source: https://bigislandnow.com/2023/02/03/hawaii-county-weather-forecast-for-february-03-2023/

AIRMET Sierra for mountain obscuration remains in effect for windward areas of Oahu early this morning, but as dry air continues to filter into the region expect conditions to continue to slowly improve.

Source: https://bigislandnow.com/2023/06/25/hawaii-county-weather-forecast-for-june-25-2023/

A trend toward more stable and drier conditions is then expected this weekend, with lingering trade wind flow focusing showers across mainly windward and mauka areas.

Source: https://bigislandnow.com/2023/04/14/hawaii-county-weather-forecast-for-april-14-2023/

Chances of showers will be limited due below normal moisture availability, however low clouds will still ride in with the trades and focus over windward and mauka areas.

Source: https://bigislandnow.com/2023/12/14/hawaii-county-weather-forecast-for-december-14-2023/

Comparatively stable closed-cell cumulus clouds are moving onto windward Big Island with isolated showers.

Source: https://bigislandnow.com/2023/07/30/hawaii-county-weather-forecast-for-july-30-2023/

Direr air approaching from the east may decrease overall windward shower coverage from this afternoon through Saturday.

Source: https://bigislandnow.com/2023/06/16/hawaii-county-weather-forecast-for-june-16-2023/

For now, the forecast reflects a blend of the two solutions, with a modest increase in mainly windward showers for the middle and latter part of next week.

Source: https://bigislandnow.com/2023/12/09/hawaii-county-weather-forecast-for-december-09-2023/

In addition to these enhanced winds, expect numerous showers to affect windward locations with scattered showers elsewhere.

Source: https://bigislandnow.com/2023/11/14/hawaii-county-weather-forecast-for-november-14-2023/

Radar is beginning to detect some of these showers, mainly over windward portions of the Big Island and Maui, with a few small pockets of moderate to heavy showers.

Source: https://bigislandnow.com/2023/02/07/hawaii-county-weather-forecast-for-february-07-2023/

The windward Big Island might be the exception as it remains closest to another upper low setting up just a few hundred miles east of Hilo from Tuesday through Thursday.

Source: https://bigislandnow.com/2023/02/24/hawaii-county-weather-forecast-for-february-24-2023/

This morning, expect isolated shower activity to mainly affect areas along the windward coasts and slopes with partly cloudy and dry conditions elsewhere.

Source: https://bigislandnow.com/2023/04/30/hawaii-county-weather-forecast-for-april-30-2023/

With the progression of the nocturnal period, cloud free skies from last evening have given way to a fairly high coverage of stable and flat cloud cover over the waters and adjacent windward zones.

Source: https://bigislandnow.com/2023/01/12/hawaii-county-weather-forecast-for-january-12-2023/