Kaneohe Base, Hawaii 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

896
FXHW60 PHFO 310201
AFDHFO

Area Forecast Discussion
National Weather Service Honolulu HI
401 PM HST Sun Mar 30 2025

.SYNOPSIS...
Rain chances will steadily increase through the week as southerly
winds associated with a cold front and upper disturbance draw
moisture northward into the islands. This front may reach the
islands around Thursday, potentially leading to more widespread
rainfall into next weekend.

&&

.DISCUSSION...
A nearly stationary, deep low pressure system is centered around
1200 miles northwest of Kauai. A jet stream along the eastern
flank of this system will bring cirrus clouds over much of the
state, particularly the western half into Monday. At the surface,
a weak high is located about 2000 miles to the east, with a long
ridge axis that passes just north of Hawaii. Gentle southeast
winds will be the result of the ridge to the east tonight with
land breezes decreasing low clouds over the island interiors
tonight. Vog will carry up from the Big Island to the smaller
islands over the next several days.

The low pressure system and associated cold front will begin to
move closer to the islands Monday and Tuesday. Southerly winds will
strengthen and bring increased moisture initially over the western
end of the state as early as tonight and over the next few days.
Clouds and showers will focus over leeward and south facing slopes
(southeast for Big Island).

Winds will taper off and veer southwesterly as the front nears the
western end of the state allowing land and sea breezes to take
over again. The front may reach Kauai around Thursday and begin to
stall and weaken into Friday with trade winds filling in over the
frontal boundary, potentially leading to more widespread rainfall
into next weekend.


&&

.AVIATION...
Light southeast flow will continue and allow for sea/land breeze
development through tonight. Some isol SHRA and MVFR conds along
interior leeward portions today. VFR conds expected to prevail
through the period.

All locations can expect to see some VOG with the degassing of
Kilauea. It is not impacting vsbys enough to be put into any of the
TAFs but was worth mentioning for general awareness.

No AIRMETs in effect.

&&

.MARINE...
&&

.HFO WATCHES/WARNINGS/ADVISORIES...
Small Craft Advisory from noon Monday to 6 PM HST Tuesday for
Kauai Northwest Waters-Kauai Leeward Waters-Big Island Windward
Waters-Big Island Leeward Waters.


&&

$$


DISCUSSION...Foster
AVIATION...Walsh
MARINE...Tsamous