Puna Weather
Monday 13th October 2025
Widely scattered showers today and Tuesday.
Periods of frequent showers beginning sometime Wednesday and lasting into the weekend.
Light easterly trade winds increasing to moderate by Wednesday and holding into the weekend.
Our easterly trades are slow to return and now models indicate Wednesday as the beginning of stronger trades. Without much wind to push moisture uphill, all we got was an increase in humidity last night.
The shallow low I mentioned yesterday is passing by to our south (1st satellite animation), so we're not likely to see much from that either.
To our north is an upper level trough with some vigorous convection underneath it (2nd satellite animation). This trough and it's associated pool of cool air aloft is forecast to dive south near our island (500mb anomaly animation), hopefully enhancing various bands of moisture that ride in on the returning trade flow.
If it all comes together we'll have some instablity from the trough and moderate easterly trade winds, so any moisture should produce rain. Models show the upper level trough sliding off to our west later in the week, with another trough diving south into pretty much the same location right afterwards. This is an encouraging pattern for rain.
