Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
259 AM EST Sat Jan 25 2025

Valid 00Z Sun Jan 26 2025 - 00Z Sun Feb 2 2025

The Hawaii domain will be in a general col within the subtropical
ridge axis this weekend, with the surface low steadily lifting
north away from the state.  However, an amplifying upper trough
north of the state early next week will result in an inverted
surface trough and then a surface low near 35N/150W by Tuesday
morning, with a trailing stationary front extending across the Big
Island.  With that low lifting out, a surface high then passes
north of the state through the middle of the week.  The ECENS is
depicted a new surface low near the northwestern Islands by that
time, whereas the GEFS is weaker and farther to the west.

Periods of showers are likely from Honolulu to the Big Islands
through Wednesday, both from trade wind flow and the presence of
the stationary boundary.  Depending on the evolution of the next
low late week, a more concentrated area of rainfall may develop
over the northwestern Islands to close out the week.  Winds will
generally be out of the east through Tuesday, with a shift to
northerly or northeast flow north of the frontal boundary going
into Wednesday.

Hamrick