Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
831 AM EDT Sat May 19 2018

Valid 00Z Sun May 20 2018 - 00Z Sun May 27 2018

Amplified flow will remain confined to the mid-latitudes of the
Pacific throughout the period with general subtropical ridging
accompanied by intermittent breaks extending over the Hawai`ian
island chain. At the surface, little change in the climatological
trade wind regime is expected with occasional upticks in wind
strength given tightening of synoptic-scale gradients. Sustained
winds could reach the 25 knot plus range during heightend periods
of trades. Otherwise, models suggest little change in this regime
into much of next week. Accordingly, trade driven showers will be
commonplace within an environment characterized by generally a 1
to 1.25 inch precipitable water air mass. The better moisture
fluxes appear confined closer to the Intertropical Convergence
Zone.


Rubin-Oster