Puna Weather
Friday 13th March 2026
Today moderate south winds increasing through the day. Very humid with periods of heavy rain and thunderstorms.
Tonight and Saturday strong south winds capable of downing branches and causing some power outages. Very humid with periods of heavy rain and thunderstorms. Some of the thunderstorms could be strong or even severe with powerful winds capable of downing trees, frequent lightning, torrential rains. Flooding is possible.
Sunday winds start off strong and from the south, but decrease through the day. Very humid with periods of heavy rain and thunderstorms.
Monday through Friday possible periods of heavy rain through the periods.
Our island lies between a powerful low to our northwest (satellite loop) and high pressure to our northeast. South winds will converge near the surface over our island tonight through Saturday. The surface level convergence combines *50mb moisture chart) with upper level divergence (200mb chart) to produce lift over us. Models have backed off some on the cold air aloft, so I've removed hail from this forecast. Moisture is very high today through Monday (GFS) or Friday (ECMWF) with dew points in the 70s and precipitable water above 2", with heavy rains possible as long as the moisture is overhead.
The surface convergence helps to accelerate winds from the south tonight through Saturday, possibly into early Sunday. Winds near sea level are likely around 30-40mph with winds around 2,000' elevation 50-60mph. Some thunderstorms could produce wind gusts around hurricane strength.
