Kapolei, Hawaii 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

632
FXHW60 PHFO 260154
AFDHFO

Area Forecast Discussion
National Weather Service Honolulu HI
354 PM HST Wed Jun 25 2025

.SYNOPSIS...
The forecast will trend drier for the rest of this week as a weak
disturbance aloft lifts away from the state and ridging builds
into the region. However, occasional pockets of moisture embedded
within moderate to locally breezy trade winds will continue to
produce mainly windward and mauka showers for the next several
days. Trade wind speeds could decrease even further early next
week as an overall drier trade wind pattern continues.

&&

.DISCUSSION...
This afternoon, latest satellite and radar imagery shows that the
enhanced showers and extensive cloud cover observed last night
through earlier today have largely diminished. This uptick in
showers resulted from instability as a weak disturbance aloft,
seen in the 700mb streamlines, approached from the east and moved
into the island chain. That weak disturbance aloft is now lifting
away from the main Hawaiian Islands as drier, more stable air
settles into the region. Meanwhile, surface high pressure centered
far northeast of the state remains nearly stationary, maintaining
breezy easterly trade wind flow across the island chain this
afternoon.

Tonight through the next several days, upper-level ridging will
build into the region from the east as the surface high to our
northeast remains nearly stationary but weakens slightly. This
will result in a slight decrease in trade wind speeds, with
prevailing trades in the moderate to locally breezy category.
While conditions will begin to trend drier, some lingering
instability and pockets of moisture embedded within the trade wind
flow will still support typical windward and mauka showers,
especially during the overnight through early morning hours each
day.

Early next week, relatively little change is expected as the
surface high to the far northeast continues to weaken and moves
farther eastward away from the Hawaiian Islands. This will weaken
the trades even more for the first half of the work week.

&&

.AVIATION...
Breezy trades continue across the Hawaiian Islands through the
next several days. AIRMET Tango remains in effect for moderate
turbulence below 8000 feet downwind of island terrain on all
islands and will continue at least through Thursday morning.

Expect periods of MVFR/IFR conditions within incoming clouds and
showers. AIRMET Sierra is posted for tempo mountain obscurations
for north through east sections of Kauai, with isolated mountain
obscurations for windward sides of the rest of the islands.
Elsewhere, VFR conditions are expected to prevail tonight.

&&

.MARINE...
High pressure northeast of the state will drive moderate to
locally strong trade winds for the next several days. A weather
disturbance passing well north of the area late this weekend
should help to ease the pressure gradient and allow trades to
gradually ease into early next week. The Small Craft Advisory for
the windier waters of Maui County and the Big Island have been
canceled due to a gradual weakening of the trade winds, however
conditions will remain borderline until later in the weekend.

The current south swell will continue to provide above average
surf along south facing shores through the remainder of the
afternoon, staying below High Surf Advisory criteria. This swell
should gradually fade through Thursday, leaving behind small
background energy in its wake. Models indicate another small to
moderate sized swell arriving early next week.

Surf along E shores should remain rough and choppy for the next
several days but could decrease a notch as the trade winds
decrease later this weekend. Surf along N shores remains tiny
through the period.

Peak high tides associated with the lunar cycle will cause minor
coastal flooding along shorelines and low lying coastal areas
through Thursday. The Coastal Flood Statement remains in effect
for the daily peak tide each afternoon and may be exacerbated by
the current S swell.


&&

.HFO WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$

DISCUSSION...Vaughan
AVIATION...Foster
MARINE...Tsamous