Puna Weather
Wednesday 27th May 2026
Today and Thusday moderate to breezy easterly trade winds with very few showers, mostly during the night and early morning hours.
Friday and Saturday light winds with increasing humidity and widely scattered showers. VOG is possible.
Sunday light winds and humid with frequent showers. VOG is possible.
Monday light to moderate easterly trade winds and humid with frequent showers.
A mid-level low to our west approaches our island over the next couple of days (500mb animation). The circulation sets up a plume of tropical moisture to our east (moisture animation). The low level trade flow will push this moisture towards our shores with humid conditions in place by Sunday and lasting through Monday or Tuesday.
As far as tropical threats go, the central Pacific hurricane season begins on June 1, Monday. Global models show a positive pulse in the MJO transitioning from the western Pacific to the eastern Pacific in the next week or 2 enhancing activity across the basin. The long range central Pacific forecast keeps very high sheer over the entire region through that period (shear animation). This makes risks to our island unlikely for the upcoming couple of weeks.
Farther to our east we could see a weak low develop along the ITCZ near 140W and the latest MJO report indicates a good chance for tropical development in the eastern Pacific in a week or two. Neither of these present any threat to us, though a weak low near 140W could add some moisture to our trade flow, but that's a long ways away and therefore unlikely.
