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Kauai County weather alerts

16 active alerts for Kauai County, Hawaii right now: 6 Tropical Storm Warnings, 6 Hurricane Watches, a Flood Watch, and 2 more.

56 in the last 30 days 68 in 12 months (since Aug 30) most common: Tropical Storm Watch Get alerts on your phone →

Active alerts for Kauai County

Refreshed every few minutes; times in HST.

Severe Immediate

Tropical Storm Warning

Issued Sun, Sep 6, 4:53 PM HST by NWS Honolulu HI Until Mon, Sep 7, 1:00 AM HST (in 7 hr)

Area: Kauai North

A Hurricane Watch means hurricane-force winds are possible somewhere within this area within the next 48 hours * LOCATIONS AFFECTED - Kilauea - Haena - Polihale * WIND - LATEST LOCAL FORECAST: Equivalent Tropical Storm force wind - Peak Wind Forecast: 35-45 mph with gusts to 60 mph - Window for Tropical Storm force winds: Monday afternoon until early Tues...

What it means: Tropical storm conditions (sustained winds of 39 to 73 mph) are expected within 36 hours. Finish preparations.

Full alert with map and forecast →

Severe Future

Hurricane Watch

Issued Sun, Sep 6, 4:53 PM HST by NWS Honolulu HI Until Mon, Sep 7, 1:00 AM HST (in 7 hr)

Area: Kauai Mountains

A Hurricane Watch means hurricane-force winds are possible somewhere within this area within the next 48 hours * LOCATIONS AFFECTED - Kokee State Park - Mount Waialeale * WIND - LATEST LOCAL FORECAST: Equivalent Tropical Storm force wind - Peak Wind Forecast: 35-45 mph with gusts to 65 mph - Window for Tropical Storm force winds: Monday afternoon until ea...

What it means: Hurricane conditions are possible within 48 hours. Prepare your home and review evacuation routes.

Full alert with map and forecast →

Severe Immediate

Tropical Storm Warning

Issued Sun, Sep 6, 4:53 PM HST by NWS Honolulu HI Until Mon, Sep 7, 1:00 AM HST (in 7 hr)

Area: Niihau

A Hurricane Watch means hurricane-force winds are possible somewhere within this area within the next 48 hours * LOCATIONS AFFECTED - Puuwai * WIND - LATEST LOCAL FORECAST: Equivalent Strong Tropical Storm force wind - Peak Wind Forecast: 45-60 mph with gusts to 75 mph - Window for Tropical Storm force winds: Monday afternoon until early Tuesday morning -...

What it means: Tropical storm conditions (sustained winds of 39 to 73 mph) are expected within 36 hours. Finish preparations.

Full alert with map and forecast →

Severe Future

Hurricane Watch

Issued Sun, Sep 6, 4:53 PM HST by NWS Honolulu HI Until Mon, Sep 7, 1:00 AM HST (in 7 hr)

Area: Kauai Southwest

A Hurricane Watch means hurricane-force winds are possible somewhere within this area within the next 48 hours * LOCATIONS AFFECTED - Waimea - Barking Sands - Hanapepe * WIND - LATEST LOCAL FORECAST: Equivalent Tropical Storm force wind - Peak Wind Forecast: 40-50 mph with gusts to 65 mph - Window for Tropical Storm force winds: Monday afternoon until ear...

What it means: Hurricane conditions are possible within 48 hours. Prepare your home and review evacuation routes.

Full alert with map and forecast →

Severe Immediate

Tropical Storm Warning

Issued Sun, Sep 6, 4:53 PM HST by NWS Honolulu HI Until Mon, Sep 7, 1:00 AM HST (in 7 hr)

Area: Kauai South

A Hurricane Watch means hurricane-force winds are possible somewhere within this area within the next 48 hours * LOCATIONS AFFECTED - Poipu - Kaleheo * WIND - LATEST LOCAL FORECAST: Equivalent Tropical Storm force wind - Peak Wind Forecast: 35-45 mph with gusts to 60 mph - Window for Tropical Storm force winds: Monday afternoon until early Tuesday morning...

What it means: Tropical storm conditions (sustained winds of 39 to 73 mph) are expected within 36 hours. Finish preparations.

Full alert with map and forecast →

Severe Immediate

Tropical Storm Warning

Issued Sun, Sep 6, 4:53 PM HST by NWS Honolulu HI Until Mon, Sep 7, 1:00 AM HST (in 7 hr)

Area: Kauai Southwest

What it means: Tropical storm conditions (sustained winds of 39 to 73 mph) are expected within 36 hours. Finish preparations.

Full alert with map and forecast →

Severe Immediate

Tropical Storm Warning

Issued Sun, Sep 6, 4:53 PM HST by NWS Honolulu HI Until Mon, Sep 7, 1:00 AM HST (in 7 hr)

Area: Kauai Mountains

What it means: Tropical storm conditions (sustained winds of 39 to 73 mph) are expected within 36 hours. Finish preparations.

Full alert with map and forecast →

Severe Future

Hurricane Watch

Issued Sun, Sep 6, 4:53 PM HST by NWS Honolulu HI Until Mon, Sep 7, 1:00 AM HST (in 7 hr)

Area: Niihau

What it means: Hurricane conditions are possible within 48 hours. Prepare your home and review evacuation routes.

Full alert with map and forecast →

Severe Immediate

Tropical Storm Warning

Issued Sun, Sep 6, 4:53 PM HST by NWS Honolulu HI Until Mon, Sep 7, 1:00 AM HST (in 7 hr)

Area: Kauai East

A Hurricane Watch means hurricane-force winds are possible somewhere within this area within the next 48 hours * LOCATIONS AFFECTED - Lihue - Wailua - Anahola * WIND - LATEST LOCAL FORECAST: Equivalent Tropical Storm force wind - Peak Wind Forecast: 30-40 mph with gusts to 60 mph - Window for Tropical Storm force winds: Monday afternoon until early Tuesda...

What it means: Tropical storm conditions (sustained winds of 39 to 73 mph) are expected within 36 hours. Finish preparations.

Full alert with map and forecast →

Severe Future

Hurricane Watch

Issued Sun, Sep 6, 4:53 PM HST by NWS Honolulu HI Until Mon, Sep 7, 1:00 AM HST (in 7 hr)

Area: Kauai East

What it means: Hurricane conditions are possible within 48 hours. Prepare your home and review evacuation routes.

Full alert with map and forecast →

Severe Future

Hurricane Watch

Issued Sun, Sep 6, 4:53 PM HST by NWS Honolulu HI Until Mon, Sep 7, 1:00 AM HST (in 7 hr)

Area: Kauai North

What it means: Hurricane conditions are possible within 48 hours. Prepare your home and review evacuation routes.

Full alert with map and forecast →

Severe Future

Hurricane Watch

Issued Sun, Sep 6, 4:53 PM HST by NWS Honolulu HI Until Mon, Sep 7, 1:00 AM HST (in 7 hr)

Area: Kauai South

What it means: Hurricane conditions are possible within 48 hours. Prepare your home and review evacuation routes.

Full alert with map and forecast →

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 days)

Area: Niihau; Kauai Southwest; Kauai Mountains; Kauai North; Kauai East; Kauai South

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...Kauai and Niihau. * WHEN...Through Tuesday afternoon. * IMPACTS...Significant flooding may occur due to the overflow of streams and drai...

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, 11:19 AM HST by NWS Honolulu HI Until Sun, Sep 6, 7:30 PM HST (in 2 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 **TROPICAL STORM CONDITIONS EXPECTED ON KAUAI AND NIIHAU BY LATE MONDAY** NEW INFORMATION --------------- * CHANGES TO WATCHES AND WARNINGS: - None * CURRENT WATCHES AND WARNINGS: - A Tropical Storm Warning is in effect for Kauai East, Kauai Mountains, Kauai North, Kauai South, Kauai Southwest, and Niihau * ...

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

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 8 hr)

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 2 day)

Area: Niihau; Kauai Southwest; Kauai East; Kauai South

...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 →

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Where

Kauai 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 Kauai County

Alert	Issued	Ended	Issued by
Tropical Storm Warning	10:53 AM	7:00 PM	Honolulu HI
Tropical Storm Warning	10:53 AM	7:00 PM	Honolulu HI
Tropical Storm Warning	10:53 AM	7:00 PM	Honolulu HI
Tropical Storm Warning	10:53 AM	7:00 PM	Honolulu HI
Tropical Storm Warning	10:53 AM	7:00 PM	Honolulu HI
Tropical Storm Warning	10:53 AM	7:00 PM	Honolulu HI
Tropical Cyclone Local Statement	5:05 AM	1:15 PM	Honolulu HI
Tropical Storm Warning	4:51 AM	1:00 PM	Honolulu HI
Tropical Storm Warning	4:51 AM	1:00 PM	Honolulu HI
Tropical Storm Warning	4:51 AM	1:00 PM	Honolulu HI
Tropical Storm Warning	4:51 AM	1:00 PM	Honolulu HI
Tropical Storm Warning	4:51 AM	1:00 PM	Honolulu HI
Tropical Storm Warning	4:51 AM	1:00 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 Storm Watch	Sep 5, 11:27 PM	Cancelled 4:52 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 11:27 PM	Cancelled 4:52 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 11:27 PM	Cancelled 4:52 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 11:27 PM	Cancelled 4:52 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 11:27 PM	Cancelled 4:52 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 11:27 PM	Cancelled 4:52 AM	Honolulu HI
Tropical Cyclone Local Statement	Sep 5, 11:12 PM	7:15 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 11:01 PM	7:15 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 11:01 PM	7:15 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 11:01 PM	7:15 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 11:01 PM	7:15 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 11:01 PM	7:15 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 11:01 PM	7:15 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 10:53 PM	7:00 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 10:53 PM	7:00 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 10:53 PM	7:00 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 10:53 PM	7:00 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 10:53 PM	7:00 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 10:53 PM	7:00 AM	Honolulu HI
Tropical Cyclone Local Statement	Sep 5, 5:24 PM	1:30 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 4:38 PM	12:45 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 4:38 PM	12:45 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 4:38 PM	12:45 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 4:38 PM	12:45 AM	Honolulu HI
Tropical Storm Watch	Sep 5, 4:38 PM	12:45 AM	Honolulu HI

Pattern

What Kauai County gets alerted for

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

Tropical Storm Watch

Tropical Storm Warning

High Surf Advisory

Hurricane Watch

Tropical Cyclone Local Statement

Flood Watch

High Surf Warning

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.

Tropical Storm Warning

Tropical storm conditions (sustained winds of 39 to 73 mph) are expected within 36 hours. Finish preparations.

Hurricane Watch

Hurricane conditions are possible within 48 hours. Prepare your home and review evacuation routes.

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.

Tropical Storm Watch

Tropical storm conditions are possible within 48 hours. Begin preparations.

Nearby

Alerts near Kauai County

Neighbouring counties in Hawaii

Honolulu County5 All of Hawaii →

Questions

About Kauai County alerts

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

Install Forecast Bar, add Kauai County as a location, and turn on severe weather alerts. Every NWS warning, watch and advisory for Kauai 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 Kauai 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/kauai-county.json returns the active alerts, the last 30 days and the 12-month counts for Kauai County, refreshed every minute. Please cache responses and credit National Weather Service as the source.

Never find out about a Kauai County alert from this page again

Add Kauai 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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Free to download; live weather requires a subscription, and every subscription includes a 7-day free trial for new subscribers. Mac and iOS plans are separate; Apple TV is included with Forecast Bar Gold on iOS.