Alert archive / Hawaii / 2021
Weather alerts in Hawaii, October 2021
13 weather alerts in October 2021, 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 October 2021. Tap one for its archive.
- Alerts
- 13
- Warnings
- 3
- Watches
- 2
- Advisories
- 8
- Busiest day
- October 12, 20214 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 |
|---|---|---|---|---|
| Oct 4, 3:23 AM HST | Small Craft Advisory | HFO | 15 days | |
| Oct 5, 3:43 PM HST | Fire Weather Watch | HFO | 11 hr | |
| Oct 6, 3:11 AM HST | Red Flag Warning | HFO | 5 days | |
| Oct 7, 3:33 PM HST | Wind Advisory | HFO | Hawaii, Honolulu, Kauai, Kalawao | 3 days |
| Oct 8, 3:36 AM HST | Gale Watch | HFO | 12 hr | |
| Oct 8, 3:30 PM HST | Gale Warning | HFO | 48 hr | |
| Oct 8, 3:30 PM HST | High Surf Advisory | HFO | Hawaii, Honolulu, Kauai, Kalawao | 3 days |
| Oct 11, 7:19 PM HST | Areal Flood Advisory | HFO | Hawaii | 3 hr |
| Oct 11, 11:16 PM HST | Areal Flood Advisory | HFO | Hawaii | 3 hr |
| Oct 12, 2:09 AM HST | Areal Flood Advisory | HFO | Hawaii | 6 hr |
| Oct 12, 2:26 AM HST | Flash Flood Warning | HFO | Hawaii | 6 hr |
| Oct 21, 4:51 PM HST | Small Craft Advisory | HFO | 4 days | |
| Oct 30, 3:27 PM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 48 hr |
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 | 1 |
| Areal Flood Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Coast and beach | |
| High Surf Advisory | 2 |
| Marine | |
| Gale Warning | 1 |
| Gale Watch | 1 |
| Small Craft Advisory | 2 |
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 archive20202022
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.