Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
317 AM EDT Mon May 3 2021

Valid 00Z Tue May 4 2021 - 00Z Tue May 11 2021

A building trough north of Hawaii is expected to produce a cut-off
upper low near 170 degrees west by Wednesday, and then slowly
track eastward across the western Islands through the end of the
week as suggested by the ensemble means.  This should lift out as
a second trough approaches from the northwest. 

In terms of rainfall, both the ECMWF and GFS keep the heaviest
rainfall associated with the trough/closed low near and to the
west of the northwestern Islands.  Elsewhere, typical trade wind
enhanced showers can be expected for the upcoming week.

Hamrick