Alert archive / Hawaii / 2021
Weather alerts in Hawaii, November 2021
22 weather alerts in November 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 November 2021. Tap one for its archive.
- Alerts
- 22
- Warnings
- 4
- Watches
- 2
- Advisories
- 16
- Busiest day
- November 14, 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 |
|---|---|---|---|---|
| Nov 1, 3:27 PM HST | Small Craft Advisory | HFO | 6 days | |
| Nov 1, 3:33 PM HST | High Surf Warning | HFO | Honolulu, Kauai, Kalawao | 36 hr |
| Nov 3, 3:17 AM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 24 hr |
| Nov 5, 3:09 AM HST | Small Craft Advisory | HFO | 48 hr | |
| Nov 13, 8:38 PM HST | Areal Flood Advisory | HFO | Hawaii | 105 min |
| Nov 14, 3:42 AM HST | Flood Watch | HFO | Hawaii, Honolulu, Kauai, Kalawao | 23 hr |
| Nov 14, 4:28 AM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Nov 14, 5:20 AM HST | Flash Flood Warning | HFO | Kalawao | 116 min |
| Nov 16, 2:31 PM HST | Areal Flood Advisory | HFO | Hawaii | 91 min |
| Nov 16, 8:00 PM HST | Areal Flood Advisory | HFO | Hawaii | 85 min |
| Nov 17, 2:00 PM HST | Areal Flood Advisory | HFO | Hawaii | 3 hr |
| Nov 17, 5:25 PM HST | Areal Flood Advisory | HFO | Hawaii | 5 hr |
| Nov 19, 3:20 AM HST | Small Craft Advisory | HFO | 12 hr | |
| Nov 21, 3:21 AM HST | Small Craft Advisory | HFO | 36 hr | |
| Nov 24, 3:29 PM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 60 hr |
| Nov 25, 9:52 AM HST | Small Craft Advisory | HFO | 30 hr | |
| Nov 27, 3:35 PM HST | Small Craft Advisory | HFO | 3 days | |
| Nov 28, 3:52 AM HST | High Wind Watch | HFO | Hawaii | 10 hr |
| Nov 28, 1:53 PM HST | High Wind Warning | HFO | Hawaii | 26 hr |
| Nov 28, 1:53 PM HST | Wind Advisory | HFO | Hawaii, Honolulu, Kauai, Kalawao | 26 hr |
| Nov 29, 1:01 PM HST | Areal Flood Advisory | HFO | Hawaii | 3 hr |
| Nov 29, 4:37 PM HST | Special Marine Warning | HFO | 56 min |
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 |
| Flood Watch | 1 |
| Areal Flood Advisory | 7 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 1 |
| Coast and beach | |
| High Surf Warning | 1 |
| High Surf Advisory | 2 |
| Marine | |
| Special Marine Warning | 1 |
| Small Craft Advisory | 6 |
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. Rebuilt daily.