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000
FXHW60 PHFO 240157
AFDHFO

Area Forecast Discussion
National Weather Service Honolulu HI
357 PM HST Tue Apr 23 2024

.SYNOPSIS...
Breezy to locally strong trade winds will continue through the
week, with clouds and showers favoring windward and mauka areas.
Trades look to ease slightly this weekend as high pressure weakens
to the north and low pressure develops to the far northwest.

&&

.DISCUSSION...
Breezy to locally strong northeast to east trade winds will
continue through the week as high pressure remains to the
northeast. This will maintain a fairly typical trade wind pattern,
with clouds and showers favoring windward and mauka areas.
Guidance continues to show a band of moisture moving across the
state tonight which will bring another uptick in windward and
makua showers, with some showers once again spilling over into
leeward areas of the smaller islands. Shower coverage should trend
down later this week as drier air slowly filters in. Trade winds
will ease slightly over the weekend as high pressure weakens in
response to a developing low far northwest of the state. Guidance
continues to then show the potential for a front moving across the
islands early next week.

&&

.AVIATION...
Breezy to locally strong trade winds will prevail for the next
few days as a surface ridge remains to the north of the islands.
Clouds and showers will continue favoring windward and mountain
areas with occasional showers reaching leeward areas. Cloud bands
with increased shower activity are expected to move in tonight
into tomorrow. These showers will likely bring more widespread
MVFR conditions to windward and mountain areas.

AIRMET Tango is in effect for moderate low level turbulence
downwind of the terrain for all islands. AIRMET Sierra for
mountain obscuration over windward areas is expected later this
evening into tomorrow morning with the increased moisture.

&&

.MARINE...
High pressure north of the state will slowly drift east driving
strong trades over the next several days. The high is forecast to
weaken around Sunday as a deep low develops northwest of the
area. A Small Craft Advisory remains in effect for higher winds
through Wednesday night covering all Hawaiian coastal waters.

Surf heights along all shores will remain below advisory thresholds
through the weekend. A small, medium period northwest swell
will arrive on Wednesday and continue through Saturday. Choppy,
rough surf expected all week along east facing shores due to the
trade winds. South facing shores will continue to see small
background swell pulses through rest of the the week.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
Small Craft Advisory until 6 AM HST Thursday for all Hawaiian
waters-

&&

$$

DISCUSSION...Ahue/TS
AVIATION...Thomas
MARINE...Foster