Hawaii, 2025

Drought in Hawaii, March 1 to 31, 2025

March 1 to 31, 2025 · NWS HFO · 3 events in 3 counties and zones

Below average rainfall led to new severe drought conditions over the south and western areas of Maui.

Where it happened

Every event with a place to put it; 3 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

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
3

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.

Below average rainfall led to new severe drought conditions over the south and western areas of Maui.

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 28, 9:00 PM HST, 3 hours earlier.

Area forecast discussion, Feb 28, 9:00 PM HST, 3 hours before
Area Forecast Discussion
National Weather Service Honolulu HI
900 PM HST Fri Feb 28 2025

.SYNOPSIS...
Generally light southerly winds will persist across the western
half of the state while southeasterlies occur across the eastern
half of the island chain. The best chances for showers will focus
over leeward areas and at higher elevation within this dry and
stable atmosphere. Trade winds will return early next week and
produce a more wet pattern. There will be a higher frequency for
showers to pass over more windward-facing exposures.

&&

.DISCUSSION...
A warm front north of the islands will continue to lift north of
the far offshore waters as another front quickly fills in its
wake. This slowing front will encounter mid to upper ridging that
is centered across and to the east of the islands. The position of
the surface ridge will promote a persistent gentle southerly wind
pattern over western islands and southeasterly breezes across the
eastern half of the state. Today's satellite imagery has displayed
scattered low top cumulus moving into the leeward communities of
Kauai and Oahu. Within this light wind regime, localized sea
breezes produced thicker clouds upslope along both Maui County and
Big Island's windward-facing mauka. Radar still depicting very
light and isolated north-moving streamer showers within this
southerly steering flow passing across many island leeward areas
this evening. With little change in the Central Pacific synoptic
picture, dry weather will continue through the weekend. The
western half of the state will experience more cloud cover and
shower activity over leeward areas within this southern flow
regime. Carbon copy type scenario this weekend as southeasterly
flow will allow more cloud build up and frequent showers favoring
southeast-facing coasts and mauka slopes of Maui County and Big
Island.

Surface ridge axis southwest of high pressure centered far
northeast of the area will remain draped over the islands this
weekend as mid to upper level ridging builds in overhead. Warm and
muggy conditions will hang on for another day or so as this
gentle southerly flow maintains elevated afternoon mid to upper
60 dew points. While this weak front passes north of the state and
becomes parallel to the westerly flow, providing minor fluctuation
in overall wind behavior, a general southern wind pattern will
remain in place through Sunday. Rainfall accumulation will be very
minimal through the weekend as mid-level ridging provides subsidence,
in tandem with a relatively dry air mass, to keep the lid on any
significant shower activity. A new front approaching from the
northwest early next week will likely become parallel to the upper
level westerlies and dissipate just before it reaches the state.
Strong ridging at all levels will expand in north of the state. A
large surface high moving to the east north of the chain will be
the impetus of returning breezy to locally windy (at elevation)
trade winds from Monday through the remainder of next week. Overall,
rainfall accumulations will be minimal the next several days due
to a combination of subsidence from mid-level ridging building in
from the west and drier air filtering across the area helping to
put a damper on shower activity. Ribbons of higher moisture being
advected in on well-established trades, along with a touch more
instability in response to lowering heights/cooler temperatures
aloft from a trough passing far north of Hawaii, increase the
probabilities of a more wet trade wind pattern late next week.

GOES GeoColor daytime imagery, surface and air quality observations
show vog continuing to impact the majority of the state from Big
Island to Oahu. SO2 emissions from areas of Kilauea's Halema'uma'u
crater are being caught up and transported within the south
southeast lower level winds. The most recent eruption did pause
Thursday morning and this will likely lead to a reduction in
overall emissions and subsequent vog coverage the next few days.
As trades build back in early next week, any lingering upstream
vog will be carried westward across the islands. Vog concentrations
will likely thin out as strengthening trades better mix out haze
through a deeper boundary layer.

&&

.AVIATION...
A weak surface ridge over the state will produce light to moderate
southerly winds across the western islands and southeasterly winds
across the eastern islands through Saturday. Moderate easterly
trade winds fill in by Sunday. VFR conditions will prevail in a
stable weather pattern with limited shower activity.

No AIRMETs in effect.

&&

.MARINE...
A ridge of high pressure over the islands tonight and Saturday,
will slowly lift northward and weaken Saturday night and Sunday
as a front front approaches from the west. Light to moderate
southerly winds will prevail over the western islands through
Saturday, while moderate east-southeasterly winds hold over the
eastern end of the state. The front will stall out and weaken
into a trough west of the islands Sunday and Sunday night,
allowing trade winds to gradually fill in and strengthen. A new
high building north of the state early next week, will bring
strong trade winds back to the island chain which will continue
through late next week. A Small Craft Advisory will likely be
needed for winds across a large portion of the marine area much
of next week.

The current extra-large northwest swell has begun to decline at
the NOAA buoys 51001 and 51101 northwest of Hawaii. The swell will
begin to decline locally here later tonight and will continue to
decline through the remainder of the weekend. A High Surf Warning
remains in effect for north and west facing shores of most of the
smaller islands through 6 AM Saturday. A Small Craft Advisory is
also in effect due to elevated seas for most marine zones though 6
AM Saturday. A High Surf Advisory remains in effect for west
facing shores of the Big Island through 6 AM Saturday. Advisory
level surf will likely linger across north and west facing shores
of the smaller islands through Saturday, so the High Surf Warning
will likely be replaced by a High Surf Advisory with the morning
forecast package. The High Surf Advisory for west facing shores of
the Big Island will likely be extended through the day Saturday
with the morning forecast package as well.

A new moderate to large northwest swell is due in early next week,
which could bring another round of advisory level surf to most
north and west facing shores late Monday through Tuesday. This
swell will then gradually lower through Thursday with a new large
northwest swell possibly bringing another round of advisory level
surf to north and west facing shores late next week.

Surf along south facing shores will remain very small and
dominated by background energy through late next week. Surf along
east facing shores will remain very small through the weekend.
East shore surf will begin to rise with the returning trades
Sunday night and Monday, with surf rising to above normal levels
Tuesday through late next week.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
High Surf Warning until 6 AM HST Saturday for Niihau-Kauai
Leeward-Waianae Coast-Oahu North Shore-Maui Windward West-Kauai
North-Molokai Windward-Molokai North-Molokai West-Maui Central
Valley North-Windward Haleakala.

High Surf Advisory until 6 AM HST Saturday for Kona-Kohala.

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

&&

DISCUSSION...Blood
AVIATION...Bohlin
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

3 drought. Local standard time, as filed.

Drought, Maui Windward West

When
March 1, 12:00 AM HST to March 31, 12:00 AM HST
Where
Maui Windward West forecast zone
Reported by
Drought Monitor
Coordinates
21.027, -156.788 (the zone’s center; the record gives no point)

Record low streamflow levels in West Maui resulted in a reduction in potable water production from public and private providers.

Drought, Maui Leeward West

When
March 1, 12:00 AM HST to March 31, 12:00 AM HST
Where
Maui Leeward West forecast zone
Reported by
Drought Monitor
Coordinates
21.027, -156.788 (the zone’s center; the record gives no point)

Record low streamflow levels in West Maui resulted in a reduction in potable water production from public and private providers.

Drought, South Haleakala

When
March 1, 12:00 AM HST to March 31, 12:00 AM HST
Where
South Haleakala forecast zone
Reported by
Drought Monitor
Coordinates
19.602, -155.523 (the zone’s center; the record gives no point)

Ranchers operating in the Kaupo region of Maui reported poor pasture conditions.|Some of them are also supplementing feed and hauling water for their cattle.

What these are

Drought
A drought reaching severe (D2) or worse on the US Drought Monitor, or with notable impacts.

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

The same day elsewhere

More

Every storm in Hawaii in 2025Every state in 2025This day in weather historyWarnings in Hawaii, March 2025

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: 1241006, 1241007, 1241009.