Puna Weather

Saturday 16th May 2026

Today light to moderate southeast winds and humid with numerous showers and isolated thunder. Some of the showers could be heavy at times.

Sunday and Monday humid with scattered to numerous showers.

Tuesday and Wednesday a trend towards less humidity and less showers.

An upper level trough to our north (upper level water vapor satellite animation) is bringing instability and an increase in moisture to our island. At the lower levels a persistent ridge to our north maintains trade flow over us. Because of the upper level trough to our north, the flow is out of the southwest today, but should turn back to easterly Sunday or Monday as the upper level trough departs the region to the northeast.

Abundant mid-level tropical moisture is currently being pulled up from the southwest by the trough, but as the trough exits, the returning easterly flow brings that moisture back over us, keeping humid conditions and scattered showers in the forecast through Monday, possibly into Tuesday.