Alert archive / Hawaii / High Surf Advisories
High Surf Advisories in Hawaii, 2020
42 high surf advisories in 2020. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of high surf advisories reaches back to 2005.
High Surf Advisories by county
Each county as a circle sized by its count in 2020. Tap one for its archive.
- High Surf Advisories
- 42
- Busiest month
- January8 high surf advisories
- Busiest day
- January 1, 20201 high surf advisories
Over time
By month
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 |
|---|---|---|---|---|
| Jan 1, 3:30 AM HST | High Surf Advisory | HFO | Hawaii, Honolulu, Kauai, Kalawao | 24 hr |
| Jan 5, 7:09 PM HST | High Surf Advisory | HFO | Honolulu, Kalawao | 3 days |
| Jan 11, 3:29 PM HST | High Surf Advisory | HFO | Honolulu, Kalawao | 5 days |
| Jan 17, 3:26 PM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 12 hr |
| Jan 19, 3:01 PM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 25 hr |
| Jan 23, 2:58 PM HST | High Surf Advisory | HFO | Hawaii, Honolulu, Kauai, Kalawao | 13 hr |
| Jan 25, 4:16 AM HST | High Surf Advisory | HFO | Hawaii, Honolulu, Kauai, Kalawao | 71 hr |
| Jan 28, 3:33 PM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 4 days |
| Feb 5, 3:17 PM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 4 days |
| Feb 10, 3:59 AM HST | High Surf Advisory | HFO | Hawaii | 5 hr |
| Feb 11, 9:27 AM HST | High Surf Advisory | HFO | Hawaii, Honolulu, Kauai, Kalawao | 18 hr |
| Feb 12, 3:44 PM HST | High Surf Advisory | HFO | Honolulu, Kalawao | 36 hr |
| Feb 19, 3:21 AM HST | High Surf Advisory | HFO | Honolulu, Kalawao | 60 hr |
| Feb 24, 3:32 PM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 48 hr |
| Feb 27, 3:12 PM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 6 days |
| Mar 5, 3:37 PM HST | High Surf Advisory | HFO | Honolulu, Kalawao | 3 days |
| Mar 11, 3:17 PM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 60 hr |
| Mar 16, 3:22 AM HST | High Surf Advisory | HFO | Kauai | 36 hr |
| Mar 20, 3:30 PM HST | High Surf Advisory | HFO | Honolulu, Kauai | 12 hr |
| Mar 23, 3:31 PM HST | High Surf Advisory | HFO | Hawaii, Honolulu, Kauai, Kalawao | 6 days |
| Apr 10, 3:22 AM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 12 hr |
| Apr 14, 3:31 PM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 24 hr |
| Apr 15, 3:27 PM HST | High Surf Advisory | HFO | Hawaii, Honolulu, Kauai, Kalawao | 24 hr |
| Apr 18, 3:22 AM HST | High Surf Advisory | HFO | Hawaii, Honolulu, Kauai, Kalawao | 48 hr |
| Apr 21, 4:39 PM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 71 hr |
| May 15, 4:00 AM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 47 hr |
| May 17, 8:19 PM HST | High Surf Advisory | HFO | Hawaii, Honolulu, Kauai, Kalawao | 31 hr |
| Jun 2, 3:33 AM HST | High Surf Advisory | HFO | Hawaii, Honolulu, Kauai, Kalawao | 3 days |
| Jun 27, 3:19 PM HST | High Surf Advisory | HFO | Hawaii, Honolulu, Kauai, Kalawao | 60 hr |
| Jul 26, 4:40 AM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 24 hr |
| Jul 27, 4:24 AM HST | High Surf Advisory | HFO | Honolulu | 11 hr |
| Oct 24, 8:06 PM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 31 hr |
| Nov 9, 3:17 PM HST | High Surf Advisory | HFO | Honolulu, Kalawao | 4 days |
| Nov 21, 3:27 PM HST | High Surf Advisory | HFO | Honolulu, Kalawao | 72 hr |
| Dec 1, 3:31 PM HST | High Surf Advisory | HFO | Hawaii | 45 hr |
| Dec 3, 12:48 PM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 15 hr |
| Dec 7, 7:31 AM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 44 hr |
| Dec 16, 3:30 PM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 44 hr |
| Dec 18, 11:38 AM HST | High Surf Advisory | HFO | Honolulu, Kalawao | 28 hr |
| Dec 22, 4:02 PM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 59 hr |
| Dec 26, 3:23 PM HST | High Surf Advisory | HFO | Honolulu, Kalawao | 36 hr |
| Dec 28, 3:33 AM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 53 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.