Puna Weather
Saturday 19th July 2025
Today through Monday widely scattered showers and light winds, which could allow some VOG to reach windward areas, especially during the night time hours.
Tuesday through Friday moderate trade winds and mostly dry most locations, the exception being our higher terrain from Glenwood to Volcano where more persistent light showers could continue through the day.
Next week possibly warm and humid with rain.
A trough aloft to our north has eroded our inversion (skew-t from Hilo this morning). This trough is also leading to weaker winds. An area of marginally higher moisture is off to our east, but models show the bulk of this moisture passing by to our north bringing rain to the Kona side of our island as well as islands from Maui west.
Ridging aloft builds into the region next week allowing our subtropical high to rebuild and our trades to return to moderate levels.
The lack of wind will keep windward locations from getting much rain this weekend. The ridge aloft will keep them for getting much rain next week.
We are currently watching a tropical wave located near 125W. This wave is forecast to amplify as it moves west with both the GFS and the European model showing deep tropical moisture over us next weekend.
