Hawaii, 2024

High Surf in Hawaii, February 2 to 4, 2024

February 2 to 4, 2024 · NWS HFO · 12 events in 12 counties and zones

A north-northeast swell brought dangerously large breaking waves of twenty two to twenty six feet for north facing shores and twelve to sixteen feet for east facing shores. This lead to localized coastal flooding for portions of the Big Island and strong currents.

Where it happened

Every event with a place to put it; 12 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
12

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS HFO wrote it up.

A north-northeast swell brought dangerously large breaking waves of twenty two to twenty six feet for north facing shores and twelve to sixteen feet for east facing shores. This lead to localized coastal flooding for portions of the Big Island and strong currents.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Honolulu, HI wrote its last area forecast discussion before the first event at Feb 2, 4:07 AM HST, 1 hour 53 minutes earlier.

Area forecast discussion, Feb 2, 4:07 AM HST, 1 hour 53 minutes before
Area Forecast Discussion
National Weather Service Honolulu HI
407 AM HST Fri Feb 2 2024

.SYNOPSIS...
The weather impacts through this weekend and into early next week
are wind driven. Expect strengthening northerly winds starting
today behind a rapidly moving cold front. These strong northerly
winds turn into windy northeast to east trade winds from early
Saturday morning into the first half of next week affecting all
Hawaiian Islands. Strong trades gradually drop down to moderate to
locally breezy levels by next week Thursday. Wet weather will continue
today statewide with decreasing rainfall trends developing after
the cold front passes through each island. Trade wind showers
return starting late Saturday to Sunday mainly over windward and
mountain areas with drier conditions forecast over leeward areas.

&&

.DISCUSSION...
The morning big picture satellite imagery shows the cold front
is moving into Kauai with cloud and showers from the front merging
with the nearly stationary surface trough near Maui. Local radar
imagery continues to show light to moderate showers developing
statewide. Wet weather will continue today statewide today with
decreasing rainfall trends developing after the cold front passes
through each island. Trade wind showers return starting late
Saturday to Sunday mainly over windward and mountain areas with
drier conditions forecast over leeward areas.

This cold front will sweep across the state today with strong
northerly winds filling in behind the front as it passes through
each island. Wind speeds will accelerate to advisory levels over
all islands through the day with the strongest wind speeds and
highest wind gusts forecast over and down wind of mountains, and
along west and east slopes of island terrain. A Wind Advisory was
issued for all islands to cover these stronger wind impacts
lasting through Sunday. Even stronger wind speeds are forecast
over the highest elevation summits of Mauna Kea and Mauna Loa on
the Big Island, where a High Wind Warning was issued this
morning.

An extended period of strong trade winds will continue into the
first half of next week. A strong high pressure system will build
into the region through early next week producing strong to windy trade
winds. Wind directions will veer from northerly windy today and
tonight, to a more northeasterly direction on Saturday, to a more
easterly direction from Sunday through Monday.

Strong winds will gradually decrease each day from Tuesday onward,
where the easterly trade winds will blow at more moderate to
locally breezy levels by Thursday. Another low pressure system
will move into the Central Pacific basin by the end of next week,
with decreasing southeasterly winds in the forecast as the
trailing cold front breaks down the high pressure ridge north of
the islands.

&&

.AVIATION...
Bands of clouds and showers ahead of an approaching cold front
continue to stream out of the west-northwest. As of 2 AM HST this
morning, late night radar imagery indicated most of the shower
activity to be focused over Maui County and spreading quickly
eastward. Occasional MVFR ceilings and visibilities are associated
with this shower activity. AIRMET Sierra for mountain obscuration
now includes Oahu, Molokai, Lanai, and Maui, and will likely be
further expanded to include northwest exposures of the Big Island
later this morning.

Winds will shift from west to north today as the front passes over
the western islands. Drier conditions and gusty winds are
expected behind the front. AIRMET Tango for low level turbulence
to the south and west of island terrain will likely be needed for
Kauai and Oahu later this morning and the rest of the state by
late evening.

&&

.MARINE...
High pressure to the distant northwest will build eastward in the
vicinity of 30N, pushing a cold front southeastward through the
island chain today and tonight. North winds gradually increase
today, with SCA level winds expected across all waters by late
this afternoon. The high will strengthen and shift northeastward
Saturday and Saturday night, before settling southward and closer
to the islands Sunday through the middle of next week. Strong to
near Gale force winds are expected during this time, with the
strongest winds in the windier waters around Maui and the Big
Island, where Gale force winds are possible. A Gale Watch remains
in effect for these areas Saturday through Sunday. A Small Craft
Advisory is now in effect for all marine zones today and tonight,
and for areas outside of the Gale Watch through Tuesday.

A pair of overlapping north to north-northeast swells continue to
run higher than predicted at nearshore buoys early this morning.
As a result, a High Surf Advisory is in effect for north and east
facing shores of most islands through Sunday as well as west
facing shores of Maui. Given the strong north to northeast winds
along with the north-northeast swell direction, impacts are also
likely from harbor surges at exposed northern harbors, including
Hilo and Kahului harbors. See the Marine Weather Statement for
additional details.

Advisory level surf may linger through Monday along north and east
facing shores, as a new large northwest swell builds and easterly
trade wind swell trends higher, even as the north-northeast swell
declines. North shore surf should lower below advisory thresholds
by Tuesday, with east shore surf likely holding at advisory
levels through Wednesday. Surf should lower below advisory levels
along east facing shores by Thursday as the trades begin to ease.

South shore surf will remain small through late next week.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
High Surf Advisory until 6 PM HST Sunday for north and east facing
shores of most Hawaiian Islands, including northeast and west
facing shores of Maui.

Wind Advisory until 6 PM HST Sunday for most lower elevation areas
of all Hawaiian Islands.

High Wind Warning until 6 AM HST Saturday for Big Island Summits.

Small Craft Advisory until 6 PM HST Tuesday for Kauai Northwest
Waters-Kauai Windward Waters-Kauai Leeward Waters-Kauai Channel-
Oahu Windward Waters-Kaiwi Channel-Maui County Windward Waters-
Big Island Windward Waters-Oahu Leeward Waters-Maui County
Leeward Waters-Big Island Leeward Waters.

Small Craft Advisory until 6 AM HST Saturday for Maalaea Bay-
Pailolo Channel-Big Island Southeast Waters-Alenuihaha
Channel.

Gale Watch from Saturday morning through Sunday afternoon for
Maalaea Bay-Pailolo Channel-Alenuihaha Channel-Big Island
Southeast Waters.

&&

DISCUSSION...Bohlin
AVIATION...Bedal
MARINE...Jelsema

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

12 high surf. Local standard time, as filed.

High Surf, Big Island East

When
February 2, 6:00 AM HST to February 4, 3:39 PM HST
Where
Big Island East forecast zone
Reported by
Emergency Manager
Coordinates
19.602, -155.523 (the zone’s center; the record gives no point)

Bayfront Dr. in downtown Hilo was closed due to coastal flooding.

High Surf, Big Island North

When
February 2, 6:00 AM HST to February 4, 3:39 PM HST
Where
Big Island North forecast zone
Reported by
NWS Employee
Coordinates
19.602, -155.523 (the zone’s center; the record gives no point)

High Surf, Windward Haleakala

When
February 2, 6:00 AM HST to February 4, 3:39 PM HST
Where
Windward Haleakala forecast zone
Reported by
NWS Employee
Coordinates
21.027, -156.788 (the zone’s center; the record gives no point)

High Surf, Maui Central Valley North

When
February 2, 6:00 AM HST to February 4, 3:39 PM HST
Where
Maui Central Valley North forecast zone
Reported by
NWS Employee
Coordinates
21.027, -156.788 (the zone’s center; the record gives no point)

High Surf, Maui Windward West

When
February 2, 6:00 AM HST to February 4, 3:39 PM HST
Where
Maui Windward West forecast zone
Reported by
NWS Employee
Coordinates
21.027, -156.788 (the zone’s center; the record gives no point)

High Surf, Molokai Windward

When
February 2, 6:00 AM HST to February 4, 3:39 PM HST
Where
Molokai Windward forecast zone
Reported by
NWS Employee
Coordinates
21.027, -156.788 (the zone’s center; the record gives no point)

High Surf, Molokai North

When
February 2, 6:00 AM HST to February 4, 3:39 PM HST
Where
Molokai North forecast zone
Reported by
NWS Employee
Coordinates
21.027, -156.788 (the zone’s center; the record gives no point)

High Surf, Koolau Windward

When
February 2, 6:00 AM HST to February 4, 3:39 PM HST
Where
Koolau Windward forecast zone
Reported by
NWS Employee
Coordinates
21.455, -157.961 (the zone’s center; the record gives no point)

High Surf, Oahu North Shore

When
February 2, 6:00 AM HST to February 4, 3:39 PM HST
Where
Oahu North Shore forecast zone
Reported by
NWS Employee
Coordinates
21.455, -157.961 (the zone’s center; the record gives no point)

High Surf, Kauai East

When
February 2, 6:00 AM HST to February 4, 3:39 PM HST
Where
Kauai East forecast zone
Reported by
NWS Employee
Coordinates
22.011, -159.705 (the zone’s center; the record gives no point)

High Surf, Kauai North

When
February 2, 6:00 AM HST to February 4, 3:39 PM HST
Where
Kauai North forecast zone
Reported by
NWS Employee
Coordinates
22.011, -159.705 (the zone’s center; the record gives no point)

High Surf, Niihau

When
February 2, 6:00 AM HST to February 4, 3:39 PM HST
Where
Niihau forecast zone
Reported by
NWS Employee
Coordinates
22.011, -159.705 (the zone’s center; the record gives no point)

What these are

High Surf
Large waves breaking on the shore that caused damage, erosion or casualties.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Hawaii in 2024Every state in 2024This day in weather historyWarnings in Hawaii, February 2024

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1158739, 1158787, 1158788, 1158789, 1158790, 1158791, 1158792, 1158793, 1158794, 1158795, 1158796, 1158797.