Puna Weather
Monday 6th April 2026
For the rest of today and tonight light southeast winds and mostly dry.
Tuesday and Wednesday humid with light to moderate southeast winds and periods of rain and thunder, possibly heavy at times.
Early Thursday humid with moderate southerly winds and periods of rain and thunder, possibly heavy at times.
Late Thursday and Friday breezy to strong south winds with periods of heavy rain and thunderstorms.
Flooding is possible, especially on Friday.
A trough swings trough the region on Tuesday pulling deep tropical moisture up from the south and over us. The trough also brings some instability making rain likely, despite the south winds.
Deep tropical moisture remains overhead continuing the threat for heavy rains even as the trough moves off to the northeast.
Another stronger trough approaches Thursday/Friday (200mb chart) bringing a surge of even higher moisture, PW > 2", and colder air and divergent flow aloft, enhancing lift over the region. The heaviest rain will likely form under low level convergence bands, which the current GFS run places over us Friday morning (rain chart). If this Kona low ends up being stronger, the southerly winds could cause some power outages late Thursday into early Friday.
Far to our west I've been watching an area of potential development. As of this morning it is classified as Invest 90W. If it forms near 155W that is 1,300 miles farther east than the nearest April typhoon I could find, Typhoon Maysak in 2015, which formed near 132W. If a storm does form, it would move west towards the Japan and pose no risk to us.
