High Wind Warning 9, NWS Honolulu, HI

758 
WWHW70 PHFO 271520
NPWHFO

URGENT - WEATHER MESSAGE
National Weather Service Honolulu HI
520 AM HST Sun Sep 27 2026

HIZ015-018-026-037-038-042-043-046-047-050-051-054-280400-
/O.CON.PHFO.HW.W.0009.000000T0000Z-260928T0400Z/
Lanai Mauka-Maui Leeward West-Kohala-Molokai Windward-Molokai
Southeast-Lanai Windward-Lanai Leeward-Maui Central Valley South-
Windward Haleakala-South Haleakala-Big Island South-Big Island
North-
520 AM HST Sun Sep 27 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM HST THIS EVENING...

* WHAT...East winds 30 to 45 mph with gusts up to 75 mph.

* WHERE...Portions of Maui, Big Island, Molokai, and Lanai over and
  downwind of terrain, especially in west Maui and Kohala.

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

* 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.

A High Wind Warning means that winds are expected to be at least 40
mph, with gusts over 60 mph. Stay away from downed power lines.

&&

$$

HIZ001-003-004-006-007-009>011-016-017-022-027-029>036-039>041-044-
045-048-049-052-280400-
/O.CON.PHFO.WI.Y.0019.000000T0000Z-260928T0400Z/
Niihau-Kauai Southwest-Kauai Mountains-Waianae Coast-Oahu North
Shore-Olomana-Central Oahu-Waianae Mountains-Kahoolawe-Maui
Windward West-Haleakala Summit-Big Island Interior-Kauai North-
Kauai East-Kauai South-East Honolulu-Honolulu Metro-Ewa Plain-
Koolau Windward-Koolau Leeward-Molokai North-Molokai West-Molokai
Leeward South-Lanai South-Maui Central Valley North-Kipahulu-
South Maui/Upcountry-Big Island Southeast-
520 AM HST Sun Sep 27 2026

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

* WHAT...East winds 25 to 35 mph with gusts to 55 mph.

* WHERE...Oahu, Kauai, and Niihau. The strongest winds are expected
  on Oahu, especially over and downwind of terrain.

* 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.

&&

$$

Castro

785 
WWHW70 PHFO 280104
NPWHFO

URGENT - WEATHER MESSAGE
National Weather Service Honolulu HI
304 PM HST Sun Sep 27 2026

HIZ018-026-037-038-046-050-054-281415-
/O.CAN.PHFO.HW.W.0009.000000T0000Z-260928T0400Z/
/O.EXB.PHFO.WI.Y.0019.000000T0000Z-260928T1600Z/
Maui Leeward West-Kohala-Molokai Windward-Molokai Southeast-Maui
Central Valley South-South Haleakala-Big Island North-
304 PM HST Sun Sep 27 2026

...HIGH WIND WARNING IS CANCELLED FOR MOLOKAI MAUI AND THE BIG
ISLAND...
...WIND ADVISORY IN EFFECT UNTIL 6 AM HST MONDAY...

* WHAT...East winds 20 to 25 mph with gusts up to 50 mph.

* WHERE...Molokai and portions of Maui and the Big Island, mainly
  over and downwind of terrain.

* WHEN...Until 6 AM HST Monday.

* 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.

&&

$$

HIZ015-042-043-047-051-281515-
/O.CAN.PHFO.HW.W.0009.000000T0000Z-260928T0400Z/
Lanai Mauka-Lanai Windward-Lanai Leeward-Windward Haleakala-Big
Island South-
304 PM HST Sun Sep 27 2026

...HIGH WIND WARNING IS CANCELLED FOR MAUI COUNTY AND THE BIG
ISLAND...

The threat for strong winds has ended.

$$

HIZ001-003-004-006-009-011-016-022-027-029>031-034-035-044-049-052-
281515-
/O.CAN.PHFO.WI.Y.0019.000000T0000Z-260928T0400Z/
Niihau-Kauai Southwest-Kauai Mountains-Waianae Coast-Olomana-
Waianae Mountains-Kahoolawe-Haleakala Summit-Big Island Interior-
Kauai North-Kauai East-Kauai South-Ewa Plain-Koolau Windward-
Lanai South-South Maui/Upcountry-Big Island Southeast-
304 PM HST Sun Sep 27 2026

...WIND ADVISORY IS CANCELLED FOR NIIHAU KAUAI AND PORTIONS OF OAHU
MAUI COUNTY AND THE BIG ISLAND...

The threat for strong winds has ended in these locations.

$$

HIZ007-010-017-032-033-036-039>041-045-048-281415-
/O.EXT.PHFO.WI.Y.0019.000000T0000Z-260928T1600Z/
Oahu North Shore-Central Oahu-Maui Windward West-East Honolulu-
Honolulu Metro-Koolau Leeward-Molokai North-Molokai West-Molokai
Leeward South-Maui Central Valley North-Kipahulu-
304 PM HST Sun Sep 27 2026

...WIND ADVISORY NOW IN EFFECT UNTIL 6 AM HST MONDAY...

* WHAT...East winds 20 to 25 mph with gusts up to 50 mph.

* WHERE...Oahu, mainly over and downwind of terrain.

* WHEN...Until 6 AM HST Monday.

* 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.

&&

$$

JVC

Area Forecast Discussion
National Weather Service Honolulu HI
106 PM HST Sat Sep 26 2026

.SYNOPSIS...
Hurricane Nolo has begun its anticipated westward movement south
of the Big Island. Localized strong and gusty winds will occur
across all islands through Sunday, with the highest winds expected
over and downwind of terrain on the Big Island and Maui. The
remains a chance for flooding over portions of the Big Island and
Maui today.

&&

.SHORT TERM UPDATE...
Based on surf observations in Puna, a High Surf Warning has been
issued for south facing shores of the Puna and Kau Districts.

&&

.PREV DISCUSSION...
Issued at 1138 AM HST Sat Sep 26 2026
Hurricane Nolo, now located about 160 miles south of Big Island,
has begun its long anticipated turn toward the west. A mid to
upper level ridge building north of the state has initiated the
westward turn of Nolo and is creating some stability from Maui to
Kauai. A tight pressure gradient north of Nolo and the modest
developing stability has created conditions conducive for
downsloping winds within the strong trade wind flow. As a result,
Wind Advisory conditions prevail on Oahu and Kauai, and portions
of Maui County downwind of terrain are experiencing gusts of 60
mph or more, mainly in the area around Ukumehame and Olowalu. A
Tropical Storm Watch remains in effect for Maui County. A Tropical
Storm Warning remains in effect for the Big Island, where wind
gusts over 60 mph are being observed in the Kohala Districts. A
Flood Watch also remains in effect for Big Island and Maui. The
flood threat is rapidly diminishing for Maui, and lower rain rates
on windward and southeast Big Island have mitigated flood impacts
so far. The flood threat for Big Island will diminish tonight.

As Nolo moves westward tonight and Sunday, the Tropical Storm
Warning for Big Island and the Tropical Storm Watch for Maui
County should be discontinued. However, strong and gusty trade
winds will persist due to the tight pressure gradient north of
Nolo. Expect the Wind Advisory to be expanded to cover much of
Maui County and Big Island, while some leeward areas over and
downwind of terrain on Maui and Big Island be placed under a High
Wind Warning. The threat of heavy rainfall will diminish on Big
Island overnight, with modest windward rainfall due across the
rest of the state.

The forecast was nudged to the NBM starting Monday onwards. The
mid level trough mentioned above will help to draw Nolo north and
then northwestward early next week. At this time the forecast
keeps Nolo west of Kauai. Toward the end of next week, light
south- to- southeast wind flow is expected to prevail as the
pressure gradient over the state weakens substantially.

&&

.AVIATION...
Issued at 1138 AM HST Sat Sep 26 2026
Gusty winds of 25 to 35 kt will continue across most of the area
with isolated higher gusts associated with Hurricane Nolo.
Scattered MVFR conditions are possible in showers, mainly across
western areas and especially windward portions of Maui and Big
Island, as well as Molokai and Lanai. Honolulu should see more
isolated passing showers.

AIRMET Sierra is in effect for mountain obscuration across entire
area.

AIRMET Tango has been issued for moderate turbulence downwind of
terrain due to the strong winds, with isolated severe turbulence
also possible.

Tropical SIGMET Oscar covers Hurricane Nolo.

&&

.MARINE...
Issued at 1138 AM HST Sat Sep 26 2026
As of 11 AM HST this morning, Hurricane Nolo was located near
16.7N 156.0W, approximately 160 miles south of South Point, and
moving W at 4 knots. The Hurricane Watch for the waters
surrounding the Big Island was dropped late this morning, but the
Tropical Storm Warning for those waters remains in effect, as does
the Tropical Storm Watch for the waters surrounding Maui County
as Hurricane Nolo begins to accelerate slowly westward. A Small
Craft Advisory remains in effect for the remaining waters through
this afternoon, with a Gale Watch in effect tonight through
Sunday. Nolo is expected to remain south of the Hawaiian Islands,
centered well outside of the coastal waters this weekend, but
strong winds and high seas can nonetheless be expected well away
from the storm itself. The hurricane will gain distance from the
islands as it begins to turn northwest by early next week, leading
to more limited impacts by Monday.

A combination of southeast swell originating from Hurricane Nolo and
strengthening easterly trade winds is producing advisory level surf
for east facing shores of Kauai and Oahu, and east and southeast
facing shores of Maui, Molokai, and the Big Island today. Advisory
level surf is expected to continue through Sunday, for which the High
Surf Advisory remains in effect. By that point, Nolo will gain some
distance from the islands to the southwest, leading to less direct
swell impacts and weakening trade winds, which will decrease east and
southeast shore surf below advisory criteria. A series of small,
medium-period east swells are expected from Hurricanes Odalys and Polo
in the East Pacific next week.

South facing shores can expect at least a moderate bump to surf
as Hurricane Nolo tracks south of the islands through the weekend,
with the best chance of seeing advisory conditions along south-
facing shores of leeward Big Island and Maui on Sunday. As Nolo
accelerates westward, the south swell it generates and sends up to
the rest of the smaller islands is expected to be slightly
smaller. A small, long period northwest swell also fills in this
weekend and brings a small bump to north facing shores into early
next week.

&&

.FIRE WEATHER...
Issued at 1138 AM HST Sat Sep 26 2026
As Hurricane Nolo moves westward through the weekend, easterly
winds will remain very strong and gusty over and downwind of
terrain. Rainfall over the last month has led to some improvement
in fuels, but the strong and gusty trade winds will produce
moderate fire weather conditions over drier leeward areas today.
With drier and continued windy weather due on Sunday, near
critical fire weather conditions are expected, with the only
limiting factor remaining the readiness of fuels.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
Wind Advisory until 6 PM HST Sunday for Central Oahu-East
Honolulu-Ewa Plain-Honolulu Metro-Kauai East-Kauai Mountains-
Kauai North-Kauai South-Kauai Southwest-Koolau Leeward-Koolau
Windward-Niihau-Oahu North Shore-Olomana-Waianae Coast-Waianae
Mountains.

High Surf Advisory until 6 PM HST Sunday for Big Island East-Big
Island North-Kauai East-Kauai South-Kipahulu-Koolau Windward-
Maui Windward West-Molokai Southeast-Molokai Windward-Olomana-
South Haleakala-Windward Haleakala.

Flood Watch until 6 PM HST this evening for Big Island East-Big
Island Interior-Big Island North-Big Island South-Big Island
Southeast-Big Island Summits-Haleakala Summit-Kahoolawe-Kipahulu-
Kohala-Kona-Lanai Leeward-Lanai Mauka-Lanai South-Lanai Windward-
Maui Central Valley North-Maui Central Valley South-Maui Leeward
West-Maui Windward West-Molokai Leeward South-Molokai North-
Molokai Southeast-Molokai West-Molokai Windward-South Haleakala-
South Maui/Upcountry-Windward Haleakala.

Tropical Storm Watch for Haleakala Summit-Kahoolawe-Kipahulu-
Lanai Leeward-Lanai Mauka-Lanai South-Lanai Windward-Maui
Central Valley North-Maui Central Valley South-Maui Leeward West-
Maui Windward West-Molokai Leeward South-Molokai North-Molokai
Southeast-Molokai West-Molokai Windward-South Haleakala-South
Maui/Upcountry-Windward Haleakala.

Tropical Storm Warning for Big Island East-Big Island Interior-
Big Island North-Big Island South-Big Island Southeast-Big
Island Summits-Kohala-Kona.

High Surf Warning until 6 AM HST Sunday for Big Island South-Big
Island Southeast.

High Surf Advisory from 6 AM to 6 PM HST Sunday for Big Island
Southeast.

Tropical Storm Watch for Kaiwi Channel-Maalaea Bay-Maui County
Leeward Waters-Maui County Windward Waters-Pailolo Channel.

Tropical Storm Warning for Alenuihaha Channel-Big Island Leeward
Waters-Big Island Southeast Waters-Big Island Windward Waters.

Small Craft Advisory until 6 PM HST this evening for Kauai
Channel-Kauai Leeward Waters-Kauai Northwest Waters-Kauai
Windward Waters-Oahu Leeward Waters-Oahu Windward Waters.

Gale Watch from 6 PM HST this evening through Sunday afternoon
for Kauai Channel-Kauai Leeward Waters-Kauai Northwest Waters-
Kauai Windward Waters-Oahu Leeward Waters-Oahu Windward Waters.

&&

DISCUSSION...Wroe
AVIATION...PECHACEK
MARINE...Farris
Fire Weather...Wroe

Preliminary Local Storm Report
National Weather Service Honolulu HI
205 PM HST Sat Sep 26 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0200 PM     Rain             4 SW Naalehu            19.04N 155.63W
09/26/2026  M2.50 Inch       Hawaii             HI   Trained Spotter

            Also reported moderate rain at times and
            winds not really reaching tropical strength.

&&

TWP