Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
830 AM EDT Fri Aug 16 2019

Valid 00Z Sat Aug 17 2019 - 00Z Sat Aug 24 2019

It appears that the semi-permanent subtropical high centered near
30N latitude will continue to dominate the Hawaiian Islands
through the end of next week.  There have been indications for a
tropical wave to pass near Hawaii toward the middle of next week. 
Major global models have trended weaker/less-defined regarding
this feature.  In addition, its predicted track has trended
farther to the south.  Nevertheless, some increase in precipitable
water can be expected by Tuesday into Wednesday as the bulk of the
moisture is expected to pass south of the islands.  Otherwise,
expect typical trade wind conditions with some terrain-enhanced
showers for the rest of the period.

Kong