Puna Weather
Wednesday 11th March 2026
Today through early Friday humid with moderate to breezy southeast winds turning to south. Periods of heavy rain and thunderstorms, particularly from Hilo south.
Late Friday through early Sunday very humid with strong, possibly damaging, south winds and periods of heavy rain and thunderstorms. Some of the thunderstorms could produce frequent lightning, torrential downpours, damaging wind gusts, and hail.
Late Sunday through Wednesday very humid with light to moderate south winds turning to northeast with periods of heavy rain. Isolated thunderstorms are also possible.
Thursday drier with more typical windward showers and light to moderate easterly trade winds.
A massive trough to our northwest will pump deep tropical moisture over us through the upcoming weekend. The pressure gradient between this feature and surface high pressure to our northeast supports southerly flow is over our island. Cold air aloft and upper level divergent flow create lift, as does the strong south winds. This combination of factors will support periods of heavy rain and thunderstorms.
The most unstable condtions are Friday and Saturday with the strongest winds late Friday and Saturday.
The trough moves off to the east on Sunday for lighter winds, but the deep moisture remains overhead through Wednesday.
