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Hawaii County weather alerts

5 active alerts for Hawaii County, Hawaii right now: a Flood Watch, a Tropical Cyclone Local Statement, 2 High Surf Warnings, and 1 more.

29 in the last 30 days 29 in 12 months (since Aug 30) most common: High Surf Advisory Get alerts on your phone →

Active alerts for Hawaii County

Refreshed every few minutes; times in HST.

Severe Future

Flood Watch

Issued Sun, Sep 6, 5:00 PM HST by NWS Honolulu HI Until Tue, Sep 8, 6:00 PM HST (in 2 day)

Area: Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; Lanai Mauka; Kahoolawe; Maui Windward West; Maui Leeward West; Haleakala Summit; Kona; Kohala; Big Island Interior; Big Island Summit; East Ho...

Moisture along the eastern flank of Hurricane Lowell will bring periods of heavy rain to the main Hawaiian Islands through Tuesday. * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Maui, Lanai, Molokai, Oahu, The Big Island and Kahoolawe. * WHEN...Through Tuesday afternoon. * IMPACTS...Flood prone roads and other lo...

What it means: Conditions are favourable for flooding. Have a plan in case a warning is issued.

Full alert with map and forecast →
Moderate Expected

Tropical Cyclone Local Statement

Issued Sun, Sep 6, 5:22 PM HST by NWS Honolulu HI Until Mon, Sep 7, 1:30 AM HST (in 3 hr)

Area: Niihau; Kauai Southwest; Kauai Mountains; Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; Lanai Mauka; Kahoolawe; Maui Windward West; Maui Leeward West; Haleakala Summit; Kona; Kohala; Big I...

HLSHFO This product covers the Hawaiian islands **HURRICANE CONDITIONS ARE POSSIBLE AND TROPICAL STORM CONDITIONS ARE EXPECTED FOR NIIHAU AND KAUAI** NEW INFORMATION --------------- * CHANGES TO WATCHES AND WARNINGS: - A Hurricane Watch has been issued for Niihau and Kauai * CURRENT WATCHES AND WARNINGS: - A Tropical Storm Warning and Hurricane Watch are ...

What it means: An update or heads-up about conditions that do not reach advisory level.

Full alert with map and forecast →
Moderate Expected

High Surf Warning

Issued Sun, Sep 6, 2:44 PM HST by NWS Honolulu HI Until Tue, Sep 8, 6:00 AM HST (in 1 day)

Area: Kohala

...HIGH SURF WARNING FOR SOUTH FACING SHORES OF ALL ISLANDS THROUGH MONDAY NIGHT... ...HIGH SURF WARNING FOR WEST FACING SHORES OF BIG ISLAND THROUGH MONDAY NIGHT... ...HIGH SURF ADVISORY FOR EAST FACING SHORES OF ALL ISLANDS THROUGH MONDAY NIGHT... .South swell from Hurricane Lowell is expected to rise rapidly Monday, and peak Monday night bringing warni...

What it means: Very large, destructive breaking waves are expected. Stay away from the surf zone entirely.

Full alert with map and forecast →
Moderate Expected

High Surf Warning

Issued Sun, Sep 6, 2:44 PM HST by NWS Honolulu HI Until Tue, Sep 8, 6:00 AM HST (in 1 day)

Area: Waianae Coast; Kahoolawe; Maui Leeward West; Kona; East Honolulu; Honolulu Metro; Ewa Plain; Molokai Southeast; Molokai West; Molokai Leeward South; Lanai Leeward; Lanai South; Maui Central Valley South; Kipahulu; Sou...

...HIGH SURF WARNING FOR SOUTH FACING SHORES OF ALL ISLANDS THROUGH MONDAY NIGHT... ...HIGH SURF WARNING FOR WEST FACING SHORES OF BIG ISLAND THROUGH MONDAY NIGHT... ...HIGH SURF ADVISORY FOR EAST FACING SHORES OF ALL ISLANDS THROUGH MONDAY NIGHT... .South swell from Hurricane Lowell is expected to rise rapidly Monday, and peak Monday night bringing warni...

What it means: Very large, destructive breaking waves are expected. Stay away from the surf zone entirely.

Full alert with map and forecast →
Minor Expected

High Surf Advisory

Issued Sun, Sep 6, 2:44 PM HST by NWS Honolulu HI Until Tue, Sep 8, 6:00 AM HST (in 1 day)

Area: Olomana; Koolau Windward; Molokai Windward; Windward Haleakala; Big Island East; Big Island North

...HIGH SURF WARNING FOR SOUTH FACING SHORES OF ALL ISLANDS THROUGH MONDAY NIGHT... ...HIGH SURF WARNING FOR WEST FACING SHORES OF BIG ISLAND THROUGH MONDAY NIGHT... ...HIGH SURF ADVISORY FOR EAST FACING SHORES OF ALL ISLANDS THROUGH MONDAY NIGHT... .South swell from Hurricane Lowell is expected to rise rapidly Monday, and peak Monday night bringing warni...

What it means: Large breaking waves are expected on beaches, with dangerous rip currents. Stay off jetties and out of the water.

Full alert with map and forecast →

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Where

Hawaii County on the map

Alert polygons are NWS's own. Forecast Bar's radar shows the same warnings over live precipitation, with future radar and lightning. See the radar.

Last 30 days

Recent alerts for Hawaii County

AlertIssuedEndedIssued by
Flood Advisory 4:42 PM 6:15 PM Honolulu HI
Flood Advisory 3:23 PM 6:15 PM Honolulu HI
Tropical Cyclone Local Statement 11:19 AM 7:30 PM Honolulu HI
Tropical Cyclone Local Statement 5:05 AM 1:15 PM Honolulu HI
High Surf Advisory 4:17 AM Sep 8, 6:00 AM Honolulu HI
Flood Watch 4:15 AM Sep 8, 6:00 PM Honolulu HI
Tropical Cyclone Local Statement Sep 5, 11:12 PM 7:15 AM Honolulu HI
Tropical Cyclone Local Statement Sep 5, 5:24 PM 1:30 AM Honolulu HI
High Surf Advisory Sep 5, 3:57 PM Sep 8, 6:00 AM Honolulu HI
Flood Watch Sep 5, 3:44 PM Sep 8, 6:00 PM Honolulu HI
High Surf Advisory Sep 5, 3:29 AM 6:00 PM Honolulu HI
High Surf Advisory Sep 4, 3:51 PM Sep 5, 6:00 PM Honolulu HI
High Surf Advisory Sep 4, 5:09 AM Sep 5, 6:00 AM Honolulu HI
High Surf Advisory Sep 4, 5:09 AM Sep 5, 6:00 AM Honolulu HI
High Surf Advisory Sep 4, 4:26 AM Sep 5, 6:00 AM Honolulu HI
High Surf Advisory Sep 4, 4:26 AM Sep 5, 6:00 AM Honolulu HI
High Surf Advisory Sep 3, 3:24 PM Sep 4, 6:00 PM Honolulu HI
Wind Advisory Sep 3, 3:20 PM Cancelled Sep 4, 3:42 AM Honolulu HI
High Surf Advisory Sep 3, 5:51 AM Sep 4, 6:00 AM Honolulu HI
Wind Advisory Sep 3, 2:56 AM Sep 4, 6:00 AM Honolulu HI
High Surf Advisory Sep 2, 3:24 PM Cancelled Sep 3, 5:53 AM Honolulu HI
High Surf Advisory Sep 2, 3:24 PM Cancelled Sep 3, 5:53 AM Honolulu HI
Wind Advisory Sep 2, 2:41 PM Sep 4, 6:00 AM Honolulu HI
Wind Advisory Sep 2, 3:01 AM Sep 4, 6:00 AM Honolulu HI

Pattern

What Hawaii County gets alerted for

Every alert that named Hawaii County in the last 12 months, by type. Records begin August 30, 2026, so this fills in over the year.

High Surf Advisory
13
Tropical Cyclone Local Statement
5
Wind Advisory
4
Flood Watch
3
Flood Advisory
2
High Surf Warning
2

Plain English

What these alerts mean

A warning means the hazard is happening or about to; a watch means conditions favour it; an advisory is a lesser hazard still worth planning around.

Flood Watch

Conditions are favourable for flooding. Have a plan in case a warning is issued.

High Surf Warning

Very large, destructive breaking waves are expected. Stay away from the surf zone entirely.

High Surf Advisory

Large breaking waves are expected on beaches, with dangerous rip currents. Stay off jetties and out of the water.

Flood Advisory

Minor flooding of streets, streams or low-lying areas is expected. Expect ponding on roads and use caution when driving.

Wind Advisory

Sustained winds of 30 mph or more, or gusts to 45 mph, are expected. Use caution driving high-profile vehicles.

Nearby

Alerts near Hawaii County

Questions

About Hawaii County alerts

How do I get Hawaii County weather alerts on my iPhone?

Install Forecast Bar, add Hawaii County as a location, and turn on severe weather alerts. Every NWS warning, watch and advisory for Hawaii County then arrives as a push notification at the moment of issue, with Critical Alerts available for the most dangerous warnings. Forecast Bar also runs on iPad, Apple Watch, Mac and Apple TV.

Where do these alerts come from?

From the National Weather Service alert feed (api.weather.gov). NWS issues alerts by county and by forecast zone; this page lists every product that names Hawaii County. Forecast Bar checks the feed continuously and this page refreshes within a few minutes of a change.

What is the difference between a watch, a warning and an advisory?

A warning means the hazard is occurring, imminent or very likely: act now. A watch means conditions are favourable for it to develop: prepare and stay informed. An advisory covers a hazard that is less serious than a warning but can still cause real inconvenience or danger if you are not ready for it.

Can I get this data as JSON?

Yes. /weather-alerts/hi/hawaii-county.json returns the active alerts, the last 30 days and the 12-month counts for Hawaii County, refreshed every minute. Please cache responses and credit National Weather Service as the source.

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Add Hawaii County in Forecast Bar and every NWS warning, watch and advisory arrives as a push notification the moment it is issued, on iPhone, iPad, Apple Watch, Mac and Apple TV.

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