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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 2, 3:01 AM HST | Wind Advisory | HFO | Hawaii, Honolulu, Kalawao | 49 hr |
| Sep 2, 7:06 AM HST | High Surf Advisory | HFO | Hawaii, Honolulu, Kauai, Kalawao | 6 days |
| Sep 5, 3:44 PM HST | Flood Watch | HFO | Hawaii, Honolulu, Kauai, Kalawao | 4 days |
| Sep 5, 4:38 PM HST | Tropical Storm Watch | HFO | Honolulu, Kauai | 39 hr |
| Sep 6, 4:51 AM HST | Tropical Storm Warning | HFO | Honolulu, Kauai | 51 hr |
| Sep 6, 4:57 AM HST | Small Craft Advisory | HFO | 67 hr | |
| Sep 6, 1:55 PM HST | Areal Flood Advisory | HFO | Honolulu | 52 min |
| Sep 6, 2:44 PM HST | High Surf Warning | HFO | Hawaii, Honolulu, Kauai, Kalawao | 49 hr |
| Sep 6, 2:47 PM HST | Flash Flood Warning | HFO | Honolulu | 2 hr |
| Sep 6, 3:23 PM HST | Areal Flood Advisory | HFO | Hawaii | 2 hr |
| Sep 6, 3:59 PM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Sep 6, 4:48 PM HST | Hurricane Watch | HFO | Kauai | 6 hr |
| Sep 6, 11:08 PM HST | Hurricane Warning | HFO | Kauai | 33 hr |
| Sep 7, 10:17 AM HST | Flash Flood Warning | HFO | Kauai | 3 hr |
| Sep 7, 11:11 AM HST | Flash Flood Warning | HFO | Kauai | 6 hr |
| Sep 7, 7:38 PM HST | Flash Flood Warning | HFO | Kauai | 9 hr |
| Sep 7, 10:35 PM HST | Special Marine Warning | HFO | 53 min | |
| Sep 8, 1:36 AM HST | Areal Flood Advisory | HFO | Honolulu | 6 hr |
| Sep 8, 3:15 PM HST | High Surf Advisory | HFO | Hawaii | 9 hr |
| Sep 9, 7:25 AM HST | High Surf Advisory | HFO | Hawaii, Honolulu, Kauai, Kalawao | 8 hr |
| Sep 9, 4:36 PM HST | Areal Flood Advisory | HFO | Hawaii | 2 hr |
| Sep 9, 8:32 PM HST | Flash Flood Warning | HFO | Hawaii | 3 hr |
| Sep 9, 11:19 PM HST | Areal Flood Advisory | HFO | Hawaii | 6 hr |
| Sep 10, 4:05 PM HST | Areal Flood Advisory | HFO | Hawaii | 3 hr |
| Sep 16, 3:10 AM HST | Small Craft Advisory | HFO | 11 days | |
| Sep 16, 3:41 PM HST | Flood Watch | HFO | Hawaii, Honolulu, Kauai, Kalawao | 35 hr |
| Sep 17, 2:01 AM HST | Areal Flood Advisory | HFO | Hawaii | 2 hr |
| Sep 17, 4:14 AM HST | Areal Flood Advisory | HFO | Hawaii | 3 hr |
| Sep 17, 9:34 AM HST | Special Marine Warning | HFO | 56 min | |
| Sep 17, 9:37 AM HST | Areal Flood Advisory | HFO | Hawaii | 3 hr |
| Sep 17, 12:31 PM HST | Areal Flood Advisory | HFO | Hawaii | 2 hr |
| Sep 17, 5:10 PM HST | Areal Flood Advisory | HFO | Hawaii | 4 hr |
| Sep 22, 2:48 PM HST | Flood Watch | HFO | Hawaii, Kalawao | 4 days |
| Sep 23, 11:01 AM HST | Hurricane Watch | HFO | Hawaii | 21 days |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Flooding | |
| Flash Flood Warning | 5 |
| Flood Watch | 3 |
| Areal Flood Advisory | 12 |
| Wind and dust | |
| Wind Advisory | 1 |
| Tropical | |
| Hurricane Warning | 1 |
| Tropical Storm Warning | 1 |
| Hurricane Watch | 2 |
| Tropical Storm Watch | 1 |
| Coast and beach | |
| High Surf Warning | 1 |
| High Surf Advisory | 3 |
| Marine | |
| Special Marine Warning | 2 |
| Small Craft Advisory | 2 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
Nearby
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.