High Wind Warning 7, NWS Honolulu, HI

178 
WWHW70 PHFO 092240
NPWHFO

URGENT - WEATHER MESSAGE
National Weather Service Honolulu HI
1240 PM HST Thu Apr 9 2026

HIZ027-052-053-101000-
/O.NEW.PHFO.AF.W.0003.260409T2240Z-260410T1000Z/
Big Island Interior-Big Island Southeast-Big Island East-
1240 PM HST Thu Apr 9 2026

...ASHFALL WARNING IN EFFECT UNTIL MIDNIGHT HST TONIGHT...

* WHAT...Kilauea is undergoing an episodic fountaining eruption 
  within the summit caldera. Fountaining episodes typically last 
  less than 12 hours but ash can remain in the air longer depending 
  on wind and weather conditions.

* WHERE...Hawaii Volcanoes National Park and areas to the north and 
  northeast, including the communities of Volcano and Mountain View.

* WHEN...Until midnight HST tonight.

* IMPACTS...The public may be impacted by substantial tephra fall. 
  Varying levels of ash, Pele's hair and other lightweight tephra may
  fall downwind of the eruption. Large foam-like tephra up to 
  football size may fall near the summit and up to several miles 
  downwind. Small particles are eye and respiratory irritants. 
  Larger lightweight tephra are not usually harmful on impact, but 
  they can
  reduce visibility, create hazardous driving conditions, and need 
  localized clean-up. This lightweight material does not pose a 
  roof-collapse risk.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain indoors and avoid driving during tephra fall if possible. 
Limit exposure to tephra, especially if you have respiratory 
sensitivities. Wear a face mask if you must go outside. Cover and 
disconnect your water catchment system to protect your water supply. 
Wear a mask, gloves, eye protection, and long clothing when clearing 
tephra.

Follow all guidance from the National Park Service and the County of 
Hawaii. Hawaii Volcanoes National Park is closed and Highway 11 is
closed except for local traffic between mile markers 24 and 40. Be 
aware that additional closures may occur.

Smaller particles can travel farther from the eruption site. Areas 
farther downwind to the north and northeast, including Puna, North
and South Hilo, and Hamakua Districts, may experience ash and Pele's 
hair.

&&

Submit your reports and photos of ashfall from volcanic eruptions to 
the USGS Hawaiian Volcano Observatory at:

  Hawaiiash.science/report_form

$$

HIZ004-029-101145-
/O.CON.PHFO.HW.W.0007.000000T0000Z-260410T1600Z/
Kauai Mountains-Kauai North-
1240 PM HST Thu Apr 9 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM HST FRIDAY...

* WHAT...South winds 25 to 35 mph with gusts up to 60 mph expected.

* WHERE...Kauai Mountains and Kauai North.

* WHEN...Until 6 AM HST Friday.

* IMPACTS...Damaging winds may blow down trees and power lines and 
  damage roofs. Power outages are possible. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Strong winds may lead to property damage. Hazardous driving 
conditions due to powerful cross winds will pose a serious risk for 
drivers, especially for light weight and high profile vehicles. 
Loose outdoor items should be brought inside or secured properly.

&&

$$

HIZ007-009>011-035-036-101145-
/O.CON.PHFO.HW.W.0007.000000T0000Z-260410T1600Z/
Oahu North Shore-Olomana-Central Oahu-Waianae Mountains-Koolau
Windward-Koolau Leeward-
1240 PM HST Thu Apr 9 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM HST FRIDAY...

* WHAT...South winds 20 to 30 mph with gusts up to 60 mph possible.

* WHERE...Central Oahu, Koolau Leeward, Koolau Windward, Oahu North 
  Shore, Olomana, and Waianae Mountains.

* WHEN...Until 6 AM HST Friday.

* IMPACTS...Damaging winds may blow down trees and power lines and 
  damage roofs. Power outages are possible. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Strong winds may lead to property damage. Hazardous driving 
conditions due to powerful cross winds will pose a serious risk for 
drivers, especially for light weight and high profile vehicles. 
Loose outdoor items should be brought inside or secured properly.

&&

$$

HIZ028-101145-
/O.CON.PHFO.WI.Y.0013.000000T0000Z-260411T0400Z/
Big Island Summits-
1240 PM HST Thu Apr 9 2026

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST FRIDAY...

* WHAT...Southwest winds 40 to 50 mph with gusts to around 60 mph 
  expected.

* WHERE...Big Island Summits.

* WHEN...Until 6 PM HST Friday.

* IMPACTS...Winds this strong can make driving and walking 
  dangerous. The winds can forcefully open doors and damage hinges 
  or slam doors shut, possibly causing injuries.

$$

VAUGHAN

330 
WWHW70 PHFO 100118
NPWHFO

URGENT - WEATHER MESSAGE
National Weather Service Honolulu HI
318 PM HST Thu Apr 9 2026

HIZ004-029-101430-
/O.CON.PHFO.HW.W.0007.000000T0000Z-260410T1600Z/
Kauai Mountains-Kauai North-
318 PM HST Thu Apr 9 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM HST FRIDAY...

* WHAT...South winds 25 to 35 mph with gusts up to 60 mph expected.

* WHERE...Kauai Mountains and Kauai North.

* WHEN...Until 6 AM HST Friday.

* IMPACTS...Damaging winds may blow down trees and power lines and 
  damage roofs. Power outages are possible. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Strong winds may lead to property damage. Hazardous driving 
conditions due to powerful cross winds will pose a serious risk for 
drivers, especially for light weight and high profile vehicles. 
Loose outdoor items should be brought inside or secured properly.

&&

$$

HIZ007-009>011-035-036-101430-
/O.CON.PHFO.HW.W.0007.000000T0000Z-260410T1600Z/
Oahu North Shore-Olomana-Central Oahu-Waianae Mountains-Koolau
Windward-Koolau Leeward-
318 PM HST Thu Apr 9 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM HST FRIDAY...

* WHAT...South winds 20 to 30 mph with gusts up to 60 mph possible.

* WHERE...Central Oahu, Koolau Leeward, Koolau Windward, Oahu North 
  Shore, Olomana, and Waianae Mountains.

* WHEN...Until 6 AM HST Friday.

* IMPACTS...Damaging winds may blow down trees and power lines and 
  damage roofs. Power outages are possible. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Strong winds may lead to property damage. Hazardous driving 
conditions due to powerful cross winds will pose a serious risk for 
drivers, especially for light weight and high profile vehicles. 
Loose outdoor items should be brought inside or secured properly.

&&

$$

HIZ027-052-053-101000-
/O.CON.PHFO.AF.W.0003.000000T0000Z-260410T1000Z/
Big Island Interior-Big Island Southeast-Big Island East-
318 PM HST Thu Apr 9 2026

...ASHFALL WARNING REMAINS IN EFFECT UNTIL MIDNIGHT HST TONIGHT...

* WHAT...Kilauea is undergoing an episodic fountaining eruption 
  within the summit caldera. Fountaining episodes typically last 
  less than 12 hours but ash can remain in the air longer depending 
  on wind and weather conditions.

* WHERE...Big Island East, Big Island Interior, and Big Island 
  Southeast.

* WHEN...Until midnight HST tonight.

* IMPACTS...The public may be impacted by substantial tephra fall. 
  Varying levels of ash, Pele's hair and other lightweight tephra 
  may fall downwind of the eruption. Large foam-like tephra up to 
  football size may fall near the summit and up to several miles 
  downwind. Small particles are eye and respiratory irritants. 
  Larger lightweight tephra are not usually harmful on impact, but 
  they can reduce visibility, create hazardous driving conditions, 
  and need localized clean-up. This lightweight material does not 
  pose a roof-collapse risk.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain indoors and avoid driving during tephra fall if possible. 
Limit exposure to tephra, especially if you have respiratory 
sensitivities. Wear a face mask if you must go outside. Cover and 
disconnect your water catchment system to protect your water supply. 
Wear a mask, gloves, eye protection, and long clothing when clearing 
tephra.

Follow all guidance from the National Park Service and the County of 
Hawaii. Hawaii Volcanoes National Park is closed and Highway 11 is
closed except for local traffic between mile markers 24 and 40. Be 
aware that additional closures may occur.

Smaller particles can travel farther from the eruption site. Areas 
farther downwind to the north and northeast, including Puna, North
and South Hilo, and Hamakua Districts, may experience ash and Pele's 
hair.

&&

Submit your reports and photos of ashfall from volcanic eruptions to 
the USGS Hawaiian Volcano Observatory at:

  Hawaiiash.science/report_form

$$

HIZ028-101430-
/O.CON.PHFO.WI.Y.0013.000000T0000Z-260411T0400Z/
Big Island Summits-
318 PM HST Thu Apr 9 2026

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST FRIDAY...

* WHAT...Southwest winds 40 to 50 mph with gusts to around 60 mph 
  expected.

* WHERE...Big Island Summits.

* WHEN...Until 6 PM HST Friday.

* IMPACTS...Winds this strong can make driving and walking 
  dangerous. The winds can forcefully open doors and damage hinges 
  or slam doors shut, possibly causing injuries.

$$

VAUGHAN

551 
WWHW70 PHFO 100556
NPWHFO

URGENT - WEATHER MESSAGE
National Weather Service Honolulu HI
756 PM HST Thu Apr 9 2026

HIZ027-052-053-100700-
/O.CAN.PHFO.AF.W.0003.000000T0000Z-260410T1000Z/
Big Island Interior-Big Island Southeast-Big Island East-
756 PM HST Thu Apr 9 2026

...ASHFALL WARNING IS CANCELLED...

The threat has ended.

Submit your reports and photos of ashfall from volcanic eruptions to 
the USGS Hawaiian Volcano Observatory at:

  Hawaiiash.science/report_form

$$

HIZ004-029-101600-
/O.CON.PHFO.HW.W.0007.000000T0000Z-260410T1600Z/
Kauai Mountains-Kauai North-
756 PM HST Thu Apr 9 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM HST FRIDAY...

* WHAT...South winds 25 to 35 mph with gusts up to 60 mph expected.

* WHERE...Kauai Mountains and Kauai North.

* WHEN...Until 6 AM HST Friday.

* IMPACTS...Damaging winds may blow down trees and power lines and 
  damage roofs. Power outages are possible. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Strong winds may lead to property damage. Hazardous driving 
conditions due to powerful cross winds will pose a serious risk for 
drivers, especially for light weight and high profile vehicles. 
Loose outdoor items should be brought inside or secured properly.

&&

$$

HIZ007-009>011-035-036-101600-
/O.CON.PHFO.HW.W.0007.000000T0000Z-260410T1600Z/
Oahu North Shore-Olomana-Central Oahu-Waianae Mountains-Koolau
Windward-Koolau Leeward-
756 PM HST Thu Apr 9 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM HST FRIDAY...

* WHAT...South winds 20 to 30 mph with gusts up to 60 mph possible.

* WHERE...Central Oahu, Koolau Leeward, Koolau Windward, Oahu North 
  Shore, Olomana, and Waianae Mountains.

* WHEN...Until 6 AM HST Friday.

* IMPACTS...Damaging winds may blow down trees and power lines and 
  damage roofs. Power outages are possible. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Strong winds may lead to property damage. Hazardous driving 
conditions due to powerful cross winds will pose a serious risk for 
drivers, especially for light weight and high profile vehicles. 
Loose outdoor items should be brought inside or secured properly.

&&

$$

HIZ028-101900-
/O.CON.PHFO.WI.Y.0013.000000T0000Z-260411T0400Z/
Big Island Summits-
756 PM HST Thu Apr 9 2026

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST FRIDAY...

* WHAT...Southwest winds 40 to 50 mph with gusts to around 60 mph 
  expected.

* WHERE...Big Island Summits.

* WHEN...Until 6 PM HST Friday.

* IMPACTS...Winds this strong can make driving and walking 
  dangerous. The winds can forcefully open doors and damage hinges 
  or slam doors shut, possibly causing injuries.

$$

ALMANZA

193 
WWHW70 PHFO 101211
NPWHFO

URGENT - WEATHER MESSAGE
National Weather Service Honolulu HI
211 AM HST Fri Apr 10 2026

HIZ007-009>011-035-036-110400-
/O.CAN.PHFO.HW.W.0007.000000T0000Z-260410T1600Z/
/O.EXA.PHFO.WI.Y.0013.000000T0000Z-260411T0400Z/
Oahu North Shore-Olomana-Central Oahu-Waianae Mountains-Koolau
Windward-Koolau Leeward-
211 AM HST Fri Apr 10 2026

...WIND ADVISORY IN EFFECT UNTIL 6 PM HST THIS EVENING...
...HIGH WIND WARNING IS CANCELLED...

* WHAT...South winds 20 to 35 mph with gusts up to 55 mph.

* WHERE...Central Oahu, Koolau Leeward, Koolau Windward, Oahu North 
  Shore, Olomana, and Waianae Mountains.

* WHEN...Until 6 PM HST this evening.

* IMPACTS...Winds this strong can tear off shingles, knock down tree 
  branches, blow away tents and awnings and make it difficult to 
  steer, especially for drivers of high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Watch out for falling tree branches when walking or driving. Make 
sure tents and awnings are secure or take them down. Be prepared for 
power outages.

&&

$$

HIZ004-029-110215-
/O.CAN.PHFO.HW.W.0007.000000T0000Z-260410T1600Z/
Kauai Mountains-Kauai North-
211 AM HST Fri Apr 10 2026

...HIGH WIND WARNING IS CANCELLED...

Winds have lowered below warning thresholds.

$$

HIZ028-110400-
/O.CON.PHFO.WI.Y.0013.000000T0000Z-260411T0400Z/
Big Island Summits-
211 AM HST Fri Apr 10 2026

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST THIS EVENING...

* WHAT...Southwest winds 40 to 50 mph with gusts to around 60 mph 
  expected.

* WHERE...Big Island Summits.

* WHEN...Until 6 PM HST this evening.

* IMPACTS...Winds this strong can make driving and walking 
  dangerous. The winds can forcefully open doors and damage hinges 
  or slam doors shut, possibly causing injuries.

$$

ALMANZA

Area Forecast Discussion
National Weather Service Honolulu HI
844 PM HST Wed Apr 8 2026

.SYNOPSIS...
An increasingly active weather pattern unfolding across the
Hawaiian Islands will persist through Friday as low pressure
strengthens northwest of the state. Deep tropical moisture being
drawn northward into the islands will support periods of heavy
rainfall, strong southerly winds, isolated strong to severe
thunderstorms, particularly from Thursday through Friday. Although
some brief improvement for portions of the state is possible by
Saturday, another active period appears likely from Sunday
through early next week.

&&

.DISCUSSION...
Forecast confidence continues to increase in a high-impact
weather event evolving across the state from late tonight through
Friday, with the primary concerns being heavy rainfall, strong
southerly winds, and strong to severe thunderstorms.

Model guidance remains in good agreement depicting a deep upper
trough and embedded shortwave energy digging southeastward toward
the islands while surface low pressure deepens northwest of the
state. As this system strengthens, the local pressure gradient
will continue to tighten through Thursday, resulting in
increasingly strong south to southeast winds across the island
chain.

This flow will continue to transport a deep tropical moisture
plume northward over the state, with PWs expected to hover around
or above 2 inches. Combined with increasing large-scale ascent
and strengthening low-level convergence, conditions continue to
favor widespread and organized heavy rainfall and isolated strong
to severe thunderstorms (despite the best instability remaining
off to the northwest).

The greatest rainfall impacts still appear most likely to begin
over Kauai and Oahu late tonight and into Thursday before
spreading eastward across the remainder of the state Thursday
night through Friday. Confidence remains highest across the
western end of the island chain for the most significant rainfall
totals and flash flooding concerns during the initial phase of the
event.

Wind impacts are also becoming increasingly concerning. Guidance
supports strong and gusty southerly winds across Kauai and Oahu
Thursday through Thursday night, and an upgrade from the current
High Wind Watch to a High Wind Warning appears likely with the
overnight forecast cycle.

Farther east, guidance also indicates gusty southerly winds
across exposed portions of the Big Island during the same time
period. While winds there are not currently expected to reach
warning criteria, speeds may become strong enough to warrant a
Wind Advisory, particularly across wind-prone and terrain-enhanced
areas by late Thursday or Friday.

Although forecast confidence decreases somewhat beyond Friday,
some gradual or temporary improvement is anticipated Friday night
into Saturday as upper heights rise and some drier air advances
down the island chain from the west. Guidance, however, shows
another shortwave dipping southeastward into the area late in the
weekend, likely supporting another active weather period across
the state that may extend through early next week.

&&

.AVIATION...
Showers are expected to envelop the islands for most of the night.
Conditions will vary depending on shower intensity as a result,
but expect at least borderline MVFR conditions for most sites
through at least early morning Thursday. Weather models suggest a
brief break in the rain for at least the eastern half of the
state around daybreak Thursday, before rain recommences by
Thursday afternoon and evening. Winds will ramp up across most
sites by Thursday afternoon as well, mainly out of the south.

AIRMET Sierra is in effect for mountain obscuration above 020 ft
across all islands. Some relief is possible as showers decrease in
coverage, but confidence in exact timing is low, so expect Sierra
to persist through the TAF period.

AIRMET Tango is also in effect for moderate turbulence between
FL200 and FL350 across the entire islands. This is also expected
to remain in effect through the TAF period.

&&

.MARINE...
South to southeast winds are expected to steadily increase through
Thursday night, as a low pressure system develops just west of
the state. A Small Craft Advisory (SCA) remains in effect for
portions of the coastal waters tonight and will expand in coverage
on Thursday. A Gale Watch remains in effect for Thursday into
Thursday night across the Hawaiian Waters. At this time, it is
looking like the strongest winds will start off over the western
half of the state Thursday into Thursday night and expand towards
the eastern half of the state Thursday night into Friday.

As the low pressure system further deepens Thursday into Friday,
we will likely see a greater coverage of thunderstorms and gusty
winds. Very rough boating conditions are expected late Thursday
into Friday as seas quickly rise in response to the strong to gale
force winds. South facing harbor entrances will also be greatly
impacted due to rough conditions.

The current south swell that peaked during the day today will
slowly drop tonight through the rest of the week. A High Surf
Advisory is in effect for all south facing shores of the Hawaiian
Islands through 6 AM.

As the long-period south swell declines on Thursday, strong to
gale force southerly winds are expected to develop and strengthen
even further Thursday night into Friday. This increase of
southerly winds will bring a rapid increase of short-period
energy Thursday into Friday and will once again bring surf heights
above the advisory thresholds for south facing shores. Large
disorganized surf is expected along many south facing shores
Thursday into Friday.

Along north facing shores, a moderate long-period northwest
(310-320 degree) swell peaked during the day today and will
steadily lower Thursday into Friday. However a smaller short-
period northwest swell generated by the low developing just west
of us at the moment will fill in over the weekend into early next
week.

Surf along east facing shores could see an increase later this
week due to the strengthening southeasterly winds especially for
southeast exposures.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
Flood Watch through Friday afternoon for all Hawaii islands-

High Surf Advisory until 6 AM HST Thursday for Niihau-Kauai
Leeward-Waianae Coast-Kahoolawe-Maui Leeward West-Kona-Kauai
South-East Honolulu-Honolulu Metro-Ewa Plain-Molokai West-
Molokai Leeward South-Lanai Leeward-Lanai South-Maui Central
Valley South-South Maui/Upcountry-South Haleakala-Big Island
South-Big Island Southeast.

High Wind Watch from 6 AM HST Thursday through late Thursday
night for Kauai Mountains-Oahu North Shore-Olomana-Central Oahu-
Waianae Mountains-Kauai North-Koolau Windward-Koolau Leeward.

Winter Weather Advisory until 6 AM HST Friday for Big Island
Summits.

Wind Advisory from 2 PM Thursday to 6 PM HST Friday for Big
Island Summits.

Small Craft Advisory until 6 AM HST Thursday for Kauai Northwest
Waters-Kauai Windward Waters-Kauai Leeward Waters-Kauai Channel-
Oahu Leeward Waters-Big Island Windward Waters-Big Island
Leeward Waters-Big Island Southeast Waters.

Gale Watch from 6 AM HST Thursday through late Thursday night
for all Hawaiian waters-

&&

DISCUSSION...Gibbs
AVIATION...Evans
MARINE...Kino