998
FXHW60 PHFO 100143
AFDHFO

Area Forecast Discussion
National Weather Service Honolulu HI
343 PM HST Wed Jul 9 2025

.SYNOPSIS...
High pressure far northeast of the state will maintain moderate
to locally breezy trades through the week. Expect fairly typical
summertime weather with clouds and showers favoring windward and
mauka areas.

&&

.DISCUSSION...
A 1032 mb surface high remains centered approximately 1400 miles
northeast of the Hawaiian Islands. This is producing moderate to
locally breezy trades across the state this afternoon. Satellite
imagery continues to shallow bands of moisture embedded in the
trades with clouds moving into windward and mauka areas, with
radar imagery showing isolated light showers across the area.
Expect these fairly typical summertime conditions to continue
tonight.

Guidance continues to show high pressure remaining northeast of
the state through the week, then drifting north starting on
Sunday. Moderate to breezy trades will continue through Saturday,
then start to weaken as the high moves further away. With no
organized source of moisture upstream of the state expect fairly
typically summertime conditions under a dry and stable airmass.
Clouds will tend to favor windward and mauka areas with passing
showers moving in at times through the forecast period.

&&

.AVIATION...
A breezy and stable trade wind flow will persist during the next
couple of days. A narrow and shallow band of moisture will remain
focused over the central portion of the island chain into Thursday
morning and will produce MVFR ceilings and visibility in SHRA
across windward slopes. AIRMET Sierra for mountain obscuration is
in effect for windward Maui, Molokai, and Lanai and may need to
be expanded to Oahu overnight. Elsewhere, VFR conditions will
prevail. Radar data support the continuation of AIRMET Tango for
low level turbulence to the lee of terrain.

&&

.MARINE...
Fresh to locally strong trade winds will persist as high pressure
lingers far northeast of the state. A Small Craft Advisory (SCA)
is now in effect for the typical windy waters around Big Island
and Maui County through 6 am HST Friday. Trades may ease slightly
around Sunday as the high drifts further away to the north.

A small mid-period south swell will continue through Thursday. A
slight boost to the period expected Friday night. Another small,
long-period south swell is expected next Sunday night into Monday.
Surf along south facing shores will boost along with the arrival
of the mentioned swells. Surf along east-facing shores will be
rough and choppy due to the breezy trade winds that will persist
the rest of the week. A small northwest swell will pass through
the islands Sunday night through Monday night.

&&

.FIRE WEATHER...
Moderate to locally breezy trade winds will continue through the
week with afternoon relative humidity near summertime normals.
Expect typical summertime fire weather conditions into next week.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
Small Craft Advisory until 6 AM HST Friday for Maalaea Bay-
Pailolo Channel-Alenuihaha Channel-Big Island Leeward Waters-Big
Island Southeast Waters.

&&

$$

DISCUSSION...Ahue
AVIATION...Wroe
MARINE...Foster
FIRE WEATHER...Ahue