Alert archive / Hawaii / 2026

Weather alerts in Hawaii, September 2026

34 weather alerts in September 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.

Weather alerts by county

Each county as a circle sized by its count in September 2026. Tap one for its archive.

Alerts
34
Warnings
10
Watches
6
Advisories
18
Busiest day
September 7, 20268 alerts

Over time

By day

Days in UTC, the clock the archive keeps.

The alerts

Every alert, in the order issued. Times are local, Hawaii-Aleutian Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeCountiesLasted
Sep 2, 3:01 AM HSTWind AdvisoryHFOHawaii, Honolulu, Kalawao49 hr
Sep 2, 7:06 AM HSTHigh Surf AdvisoryHFOHawaii, Honolulu, Kauai, Kalawao6 days
Sep 5, 3:44 PM HSTFlood WatchHFOHawaii, Honolulu, Kauai, Kalawao4 days
Sep 5, 4:38 PM HSTTropical Storm WatchHFOHonolulu, Kauai39 hr
Sep 6, 4:51 AM HSTTropical Storm WarningHFOHonolulu, Kauai51 hr
Sep 6, 4:57 AM HSTSmall Craft AdvisoryHFO67 hr
Sep 6, 1:55 PM HSTAreal Flood AdvisoryHFOHonolulu52 min
Sep 6, 2:44 PM HSTHigh Surf WarningHFOHawaii, Honolulu, Kauai, Kalawao49 hr
Sep 6, 2:47 PM HSTFlash Flood WarningHFOHonolulu2 hr
Sep 6, 3:23 PM HSTAreal Flood AdvisoryHFOHawaii2 hr
Sep 6, 3:59 PM HSTAreal Flood AdvisoryHFOKalawao3 hr
Sep 6, 4:48 PM HSTHurricane WatchHFOKauai6 hr
Sep 6, 11:08 PM HSTHurricane WarningHFOKauai33 hr
Sep 7, 10:17 AM HSTFlash Flood WarningHFOKauai3 hr
Sep 7, 11:11 AM HSTFlash Flood WarningHFOKauai6 hr
Sep 7, 7:38 PM HSTFlash Flood WarningHFOKauai9 hr
Sep 7, 10:35 PM HSTSpecial Marine WarningHFO53 min
Sep 8, 1:36 AM HSTAreal Flood AdvisoryHFOHonolulu6 hr
Sep 8, 3:15 PM HSTHigh Surf AdvisoryHFOHawaii9 hr
Sep 9, 7:25 AM HSTHigh Surf AdvisoryHFOHawaii, Honolulu, Kauai, Kalawao8 hr
Sep 9, 4:36 PM HSTAreal Flood AdvisoryHFOHawaii2 hr
Sep 9, 8:32 PM HSTFlash Flood WarningHFOHawaii3 hr
Sep 9, 11:19 PM HSTAreal Flood AdvisoryHFOHawaii6 hr
Sep 10, 4:05 PM HSTAreal Flood AdvisoryHFOHawaii3 hr
Sep 16, 3:10 AM HSTSmall Craft AdvisoryHFO11 days
Sep 16, 3:41 PM HSTFlood WatchHFOHawaii, Honolulu, Kauai, Kalawao35 hr
Sep 17, 2:01 AM HSTAreal Flood AdvisoryHFOHawaii2 hr
Sep 17, 4:14 AM HSTAreal Flood AdvisoryHFOHawaii3 hr
Sep 17, 9:34 AM HSTSpecial Marine WarningHFO56 min
Sep 17, 9:37 AM HSTAreal Flood AdvisoryHFOHawaii3 hr
Sep 17, 12:31 PM HSTAreal Flood AdvisoryHFOHawaii2 hr
Sep 17, 5:10 PM HSTAreal Flood AdvisoryHFOHawaii4 hr
Sep 22, 2:48 PM HSTFlood WatchHFOHawaii, Kalawao4 days
Sep 23, 11:01 AM HSTHurricane WatchHFOHawaii21 days

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

By county

Every county with at least one alert. A county page lists each alert that covered it.

Nearby

Alerts in force nowTornadoes on recordThe radar archive2025

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.