Waipio, Hawaii 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

929
FXHW60 PHFO 251304
AFDHFO

Area Forecast Discussion
National Weather Service Honolulu HI
304 AM HST Wed Mar 25 2026

.SYNOPSIS...

A drier and more stable trade wind pattern is expected through
the weekend and into early next week. Showers should be mostly
focused along windward and mauka locations through the period.

&&

.DISCUSSION...

Looking at radar and satellite, typical trade wind clouds are
streaming in from the east-northeast. Expect scattered windward
and mauka showers across all islands for the next several days
especially in the late evening and overnight hours. Northeast
winds will remain elevated and gusty through tonight but should
begin to ease some tomorrow into tomorrow evening.

An upper low will swing by to the northeast and push a fairly dry
cold front through Thursday night through Saturday night,
bringing even more drier air to the state. At this time, the
forecast is for dewpoints in the mid 50s Saturday night, with
upper 50s both Friday and Sunday nights. Looks like a cool weekend
in store.

&&

.AVIATION...

Mostly dry and breezy northeast trade wind conditions will
prevail across the island chain over the next 24 h. As a result,
AIRMET Tango continues for low-level turbulence across leeward
areas of all islands. Brief periods with MVFR CIGS/VSBYS are
possible in passing showers, mostly through the early morning
hours today.

&&

.MARINE...

A low pressure system north-northeast of the islands and a high
pressure system to the north-northwest of the Hawaii region will
keep northeasterly trade winds in the forecast through the week.A
Small Craft Advisory (SCA) has decreased in coverage to most
eastern coastal waters through early Thursday morning for winds.
Winds will briefly ease on Thursday and Friday, likely falling
below SCA thresholds. A new high pressure develops far northwest
of Hawaii by Friday night, strengthening trade winds into the
fresh to strong range this weekend with returning SCA conditions
from Saturday into the first half of next week.

A short to medium period north-northeast swell will slowly
decline today. The forerunners of another small northwest swell
will arrive at the buoys later today, with the medium period
swell peaking around 3 feet on Thursday, before gradually
declining through the weekend. For east facing shores, short
period wind wave energy from northeasterly trade winds will hold
into the weekend. Strengthening northeasterly winds this weekend
and potential gales associated with a low around one thousand
miles northeast of the islands will lead to the potential for high
surf advisories along north and east facing shores from Sunday
into early next week.

For south facing shores, small background energy pulses will keep
surf heights just above flat conditions into early next week.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
Small Craft Advisory until 6 AM HST early this morning for Kauai
Northwest Waters-Kauai Windward Waters-Kauai Leeward Waters-
Kauai Channel-Oahu Windward Waters-Oahu Leeward Waters-Kaiwi
Channel-Maui County Windward Waters.

Small Craft Advisory until 6 AM HST Thursday for Maui County
Leeward Waters-Maalaea Bay-Pailolo Channel-Alenuihaha Channel-
Big Island Windward Waters-Big Island Leeward Waters-Big Island
Southeast Waters.


&&

$$


DISCUSSION...Walsh
AVIATION...Gibbs
MARINE...Bohlin