Alert archive / Hawaii / Hawaii County
Weather alerts in Hawaii County, Hawaii, 2012
76 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Hawaii County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 76
- Warnings
- 8
- Watches
- 3
- Advisories
- 65
- Busiest month
- March17 alerts
- Busiest day
- March 9, 20123 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Hawaii County, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 0 | 1 | 0% | |||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Honolulu, HI: tornado warnings | 0 | 1 | 0% | |||
| NWS Honolulu, HI: severe thunderstorm warnings | 8 | 2 | 75% | 11 | 64% | 21 min |
| NWS Honolulu, HI: flash flood warnings | 24 | 15 | 38% | 53 | 92% | 263 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
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 | Lasted |
|---|---|---|---|
| Jan 2, 3:28 PM HST | High Surf Warning | HFO | 60 hr |
| Jan 4, 3:33 PM HST | High Surf Advisory | HFO | 36 hr |
| Jan 6, 3:40 AM HST | High Surf Advisory | HFO | 3 days |
| Jan 10, 3:27 PM HST | High Surf Advisory | HFO | 3 days |
| Jan 16, 1:42 AM HST | Areal Flood Advisory | HFO | 107 min |
| Jan 16, 7:04 AM HST | Areal Flood Advisory | HFO | 6 hr |
| Jan 16, 6:59 PM HST | Areal Flood Advisory | HFO | 118 min |
| Jan 27, 3:31 PM HST | High Surf Advisory | HFO | 42 hr |
| Jan 29, 3:39 AM HST | Wind Advisory | HFO | 30 hr |
| Jan 30, 3:32 PM HST | High Surf Advisory | HFO | 41 hr |
| Feb 4, 4:46 AM HST | Wind Advisory | HFO | 29 hr |
| Feb 5, 10:14 AM HST | High Wind Warning | HFO | 3 days |
| Feb 6, 3:21 PM HST | High Surf Advisory | HFO | 4 days |
| Feb 8, 3:39 PM HST | Wind Advisory | HFO | 12 hr |
| Feb 15, 3:30 AM HST | High Surf Advisory | HFO | 72 hr |
| Feb 16, 11:53 AM HST | Wind Advisory | HFO | 6 days |
| Feb 17, 3:25 PM HST | Winter Storm Watch | HFO | 24 hr |
| Feb 18, 3:26 PM HST | Winter Storm Warning | HFO | 42 hr |
| Feb 19, 1:41 AM HST | Areal Flood Advisory | HFO | 7 hr |
| Feb 20, 9:32 AM HST | Winter Weather Advisory | HFO | 26 hr |
| Feb 21, 11:54 AM HST | Winter Storm Warning | HFO | 22 hr |
| Mar 3, 3:10 AM HST | Winter Weather Advisory | HFO | 36 hr |
| Mar 3, 4:31 AM HST | Areal Flood Advisory | HFO | 7 hr |
| Mar 3, 4:47 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Mar 3, 11:21 PM HST | Areal Flood Advisory | HFO | 100 min |
| Mar 4, 2:58 PM HST | Wind Advisory | HFO | 3 days |
| Mar 6, 7:10 AM HST | Winter Weather Advisory | HFO | 9 hr |
| Mar 6, 8:50 PM HST | Winter Weather Advisory | HFO | 18 hr |
| Mar 6, 10:02 PM HST | Areal Flood Advisory | HFO | 93 min |
| Mar 8, 3:08 PM HST | Winter Weather Advisory | HFO | 20 hr |
| Mar 8, 5:17 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Mar 9, 10:26 AM HST | Wind Advisory | HFO | 41 hr |
| Mar 10, 5:41 PM HST | Winter Weather Advisory | HFO | 12 hr |
| Mar 11, 7:16 AM HST | Wind Advisory | HFO | 32 hr |
| Mar 16, 1:14 PM HST | Wind Advisory | HFO | 15 hr |
| Mar 24, 1:03 PM HST | Winter Weather Advisory | HFO | 50 hr |
| Mar 24, 7:31 PM HST | Areal Flood Advisory | HFO | 4 hr |
| Mar 27, 7:22 AM HST | Wind Advisory | HFO | 20 hr |
| Apr 8, 9:37 AM HST | Wind Advisory | HFO | 11 hr |
| Apr 29, 3:32 AM HST | Wind Advisory | HFO | 4 days |
| May 3, 8:31 PM HST | Wind Advisory | HFO | 19 hr |
| May 20, 8:44 PM HST | Wind Advisory | HFO | 4 days |
| May 22, 3:07 PM HST | High Wind Warning | HFO | 25 hr |
| May 23, 5:20 PM HST | High Wind Warning | HFO | 17 hr |
| May 25, 9:20 AM HST | Wind Advisory | HFO | 5 days |
| May 31, 6:33 PM HST | Wind Advisory | HFO | 5 days |
| Jun 15, 3:46 PM HST | High Wind Watch | HFO | 48 hr |
| Jun 15, 3:46 PM HST | Wind Advisory | HFO | 48 hr |
| Jun 17, 3:30 PM HST | High Wind Warning | HFO | 34 hr |
| Jun 17, 3:30 PM HST | Wind Advisory | HFO | 34 hr |
| Jun 25, 8:52 PM HST | Wind Advisory | HFO | 7 hr |
| Jul 4, 7:15 AM HST | High Surf Advisory | HFO | 61 hr |
| Jul 8, 12:30 PM HST | Wind Advisory | HFO | 6 hr |
| Jul 15, 3:37 PM HST | Wind Advisory | HFO | 24 hr |
| Aug 7, 12:06 PM HST | Wind Advisory | HFO | 15 hr |
| Aug 13, 3:28 PM HST | Wind Advisory | HFO | 48 hr |
| Aug 20, 6:29 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 31, 2:57 AM HST | Tsunami Watch | HEB | 35 min |
| Sep 26, 3:46 PM HST | High Surf Advisory | HFO | 60 hr |
| Oct 9, 10:06 AM HST | High Surf Advisory | HFO | 47 hr |
| Oct 11, 3:24 AM HST | Wind Advisory | HFO | 3 days |
| Oct 22, 6:31 AM HST | Wind Advisory | HFO | 9 hr |
| Oct 25, 3:27 PM HST | High Surf Advisory | HFO | 60 hr |
| Oct 27, 7:09 PM HST | Tsunami Warning | HEB | 6 hr |
| Oct 28, 12:54 AM HST | Tsunami Advisory | HEB | 3 hr |
| Nov 15, 3:33 AM HST | Wind Advisory | HFO | 36 hr |
| Dec 2, 1:17 PM HST | Wind Advisory | HFO | 21 hr |
| Dec 7, 3:05 PM HST | High Surf Advisory | HFO | 48 hr |
| Dec 10, 9:32 AM HST | Wind Advisory | HFO | 5 hr |
| Dec 11, 10:26 AM HST | Wind Advisory | HFO | 8 hr |
| Dec 11, 3:29 PM HST | Wind Advisory | HFO | 24 hr |
| Dec 12, 4:13 PM HST | Wind Advisory | HFO | 71 hr |
| Dec 15, 9:29 PM HST | Wind Advisory | HFO | 66 hr |
| Dec 16, 11:00 AM HST | Wind Advisory | HFO | 53 hr |
| Dec 27, 10:35 PM HST | Wind Advisory | HFO | 7 hr |
| Dec 29, 3:06 PM HST | High Surf Advisory | HFO | 63 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Flooding | |
| Areal Flood Advisory | 11 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 7 |
| Wind and dust | |
| High Wind Warning | 4 |
| High Wind Watch | 1 |
| Wind Advisory | 33 |
| Coast and beach | |
| High Surf Warning | 1 |
| Tsunami Warning | 1 |
| Tsunami Watch | 1 |
| High Surf Advisory | 13 |
| Tsunami Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20112013
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.