Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
323 AM EDT Sat Jul 22 2023

Valid 00Z Sun Jul 23 2023 - 00Z Sun Jul 30 2023

Surface high pressure in place well to the northwest and northeast
of Hawaii this weekend will likely combine into one high
meandering around 40N latitude due north of the state next week.
The influence of this high will lead to persistent and likely
breezy easterly trades through the next week, with perhaps minor
variations in speed from day to day. Without significant
upper-level features influencing the pattern, typical trade wind
weather can be expected, including some scattered windward/mauka
showers that should not be very deep given the common inversion
aloft. Shower coverage may be temporarily enhanced late Saturday
into Sunday as slightly higher precipitable water values come into
Hawaii, before a drier than normal airmass arrives next week.
Heavy rainfall is not likely during the upcoming week. Looking
ahead into next weekend, an upper trough axis may set up to the
north of the state, and its influence on the sensible weather if
that upper pattern plays out will continue to be monitored.


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