Alert archive / Hawaii / Hawaii County
Weather alerts in Hawaii County, Hawaii, 2015
211 weather alerts in 2015, 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 2015. Tap one for its archive.
- Alerts
- 211
- Warnings
- 30
- Watches
- 19
- Advisories
- 162
- Busiest month
- September55 alerts
- Busiest day
- September 17, 20157 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, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 0 | 0 | ||||
| Flash flood warnings | 17 | 3 | 82% | 14 | 57% | 92 min |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Honolulu, HI: tornado warnings | 0 | 2 | 0% | |||
| NWS Honolulu, HI: severe thunderstorm warnings | 0 | 11 | 0% | |||
| NWS Honolulu, HI: flash flood warnings | 59 | 17 | 71% | 53 | 62% | 97 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 1, 3:55 PM HST | Wind Advisory | HFO | 41 hr |
| Jan 2, 8:51 AM HST | Blizzard Warning | HFO | 29 hr |
| Jan 3, 12:34 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Jan 3, 2:07 AM HST | Areal Flood Advisory | HFO | 7 hr |
| Jan 5, 3:32 AM HST | Wind Advisory | HFO | 8 hr |
| Jan 6, 3:14 AM HST | Wind Advisory | HFO | 31 hr |
| Jan 14, 3:38 PM HST | High Surf Advisory | HFO | 4 days |
| Jan 20, 3:09 AM HST | High Surf Warning | HFO | 6 days |
| Jan 25, 3:26 PM HST | High Surf Advisory | HFO | 12 hr |
| Feb 1, 5:16 PM HST | Wind Advisory | HFO | 46 hr |
| Feb 2, 5:00 PM HST | High Wind Warning | HFO | 4 days |
| Feb 7, 3:27 AM HST | Wind Advisory | HFO | 14 hr |
| Feb 7, 5:23 PM HST | High Wind Warning | HFO | 4 days |
| Feb 9, 3:41 PM HST | High Surf Advisory | HFO | 4 days |
| Feb 11, 7:31 AM HST | Wind Advisory | HFO | 16 hr |
| Feb 11, 11:45 PM HST | High Wind Warning | HFO | 3 days |
| Feb 12, 3:33 PM HST | Wind Advisory | HFO | 54 hr |
| Feb 13, 1:42 PM HST | High Surf Advisory | HFO | 62 hr |
| Feb 14, 7:27 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Feb 15, 3:39 AM HST | Wind Advisory | HFO | 14 hr |
| Feb 19, 3:32 AM HST | High Surf Advisory | HFO | 60 hr |
| Feb 20, 12:29 PM HST | High Wind Warning | HFO | 15 hr |
| Feb 20, 7:42 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Feb 21, 3:37 AM HST | Wind Advisory | HFO | 8 hr |
| Feb 21, 8:14 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Feb 23, 9:30 PM HST | High Surf Advisory | HFO | 61 hr |
| Feb 24, 4:40 AM HST | Wind Advisory | HFO | 23 hr |
| Feb 28, 7:36 AM HST | Winter Weather Advisory | HFO | 56 hr |
| Feb 28, 3:12 PM HST | Wind Advisory | HFO | 12 hr |
| Feb 28, 5:00 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Mar 1, 2:25 PM HST | Areal Flood Advisory | HFO | 5 hr |
| Mar 2, 12:08 PM HST | Areal Flood Advisory | HFO | 6 hr |
| Mar 3, 3:15 PM HST | Flash Flood Watch | HFO | 36 hr |
| Mar 3, 3:15 PM HST | Winter Storm Warning | HFO | 36 hr |
| Mar 5, 9:12 PM HST | Wind Advisory | HFO | 30 hr |
| Mar 7, 3:05 AM HST | High Wind Watch | HFO | 13 hr |
| Mar 7, 3:40 PM HST | High Wind Warning | HFO | 3 days |
| Mar 8, 10:50 AM HST | Winter Weather Advisory | HFO | 41 hr |
| Mar 9, 3:29 PM HST | Winter Storm Watch | HFO | 24 hr |
| Mar 10, 3:40 PM HST | Blizzard Warning | HFO | 48 hr |
| Mar 12, 3:40 PM HST | Winter Weather Advisory | HFO | 11 hr |
| Mar 12, 3:41 PM HST | High Wind Warning | HFO | 18 hr |
| Mar 13, 9:27 AM HST | Wind Advisory | HFO | 6 hr |
| Mar 16, 3:33 AM HST | Wind Advisory | HFO | 9 hr |
| Apr 5, 3:23 PM HST | Areal Flood Advisory | HFO | 6 hr |
| Apr 5, 8:49 PM HST | Areal Flood Advisory | HFO | 116 min |
| Apr 11, 5:20 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Apr 15, 2:24 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Apr 15, 4:06 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Apr 15, 6:56 PM HST | Areal Flood Advisory | HFO | 2 hr |
| Apr 19, 11:20 AM HST | High Surf Advisory | HFO | 4 days |
| Apr 28, 3:16 PM HST | Wind Advisory | HFO | 27 hr |
| May 5, 3:13 PM HST | High Surf Advisory | HFO | 40 hr |
| May 22, 10:44 PM HST | Wind Advisory | HFO | 11 hr |
| May 28, 3:21 PM HST | Wind Advisory | HFO | 24 hr |
| May 30, 3:11 PM HST | High Surf Advisory | HFO | 4 days |
| Jun 6, 4:47 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Jun 10, 2:29 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Jun 14, 7:08 AM HST | Wind Advisory | HFO | 8 hr |
| Jun 15, 1:46 PM HST | Wind Advisory | HFO | 14 hr |
| Jun 20, 7:46 AM HST | High Surf Advisory | HFO | 44 hr |
| Jul 4, 9:35 AM HST | High Surf Advisory | HFO | 30 hr |
| Jul 6, 3:32 PM HST | High Surf Advisory | HFO | 48 hr |
| Jul 16, 10:16 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Jul 17, 12:04 AM HST | Areal Flood Advisory | HFO | 8 hr |
| Jul 24, 10:12 AM HST | High Surf Advisory | HFO | 44 hr |
| Jul 26, 6:34 AM HST | High Surf Warning | HFO | 21 hr |
| Jul 27, 3:28 AM HST | High Surf Advisory | HFO | 48 hr |
| Jul 27, 3:42 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 3, 5:00 PM HST | Tropical Storm Watch | HFO | 72 hr |
| Aug 4, 9:53 AM HST | Flash Flood Watch | HFO | 26 hr |
| Aug 4, 1:28 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 6, 8:49 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 11, 5:00 AM HST | Tropical Storm Watch | HFO | 36 hr |
| Aug 11, 9:54 AM HST | Flash Flood Watch | HFO | 4 days |
| Aug 13, 12:32 PM HST | Areal Flood Advisory | HFO | 6 hr |
| Aug 13, 6:29 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 14, 1:06 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 14, 3:41 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 14, 5:36 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 16, 6:50 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 16, 7:19 PM HST | Flash Flood Warning | HFO | 56 min |
| Aug 16, 8:14 PM HST | Areal Flood Advisory | HFO | 2 hr |
| Aug 16, 8:20 PM HST | Areal Flood Advisory | HFO | 115 min |
| Aug 17, 1:04 PM HST | Areal Flood Advisory | HFO | 6 hr |
| Aug 17, 4:10 PM HST | Flash Flood Warning | HFO | 5 hr |
| Aug 17, 9:05 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 18, 7:52 AM HST | Flash Flood Watch | HFO | 32 hr |
| Aug 18, 11:59 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 18, 9:36 PM HST | Areal Flood Advisory | HFO | 114 min |
| Aug 19, 12:46 AM HST | Areal Flood Advisory | HFO | 119 min |
| Aug 19, 3:48 PM HST | Areal Flood Advisory | HFO | 6 hr |
| Aug 20, 5:10 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 21, 3:42 PM HST | Flash Flood Watch | HFO | 7 days |
| Aug 22, 5:11 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 22, 1:24 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 22, 4:03 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 22, 8:48 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 22, 11:39 PM HST | Areal Flood Advisory | HFO | 5 hr |
| Aug 23, 6:46 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 23, 1:02 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 23, 3:27 PM HST | Flash Flood Warning | HFO | 2 hr |
| Aug 23, 5:25 PM HST | Flash Flood Warning | HFO | 3 hr |
| Aug 23, 8:52 PM HST | Areal Flood Advisory | HFO | 7 hr |
| Aug 24, 5:42 AM HST | Areal Flood Advisory | HFO | 6 hr |
| Aug 24, 9:38 AM HST | Flash Flood Warning | HFO | 3 hr |
| Aug 24, 11:02 AM HST | Flash Flood Warning | HFO | 3 hr |
| Aug 24, 2:10 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 24, 4:53 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 25, 2:28 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 25, 5:49 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 28, 3:17 AM HST | High Surf Advisory | HFO | 36 hr |
| Aug 29, 4:47 AM HST | Tropical Storm Watch | HFO | 36 hr |
| Aug 30, 3:58 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 31, 1:17 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 31, 4:08 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 1, 3:20 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 1, 5:35 PM HST | Areal Flood Advisory | HFO | 115 min |
| Sep 1, 9:39 PM HST | Areal Flood Advisory | HFO | 2 hr |
| Sep 2, 1:17 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 2, 4:03 PM HST | Areal Flood Advisory | HFO | 5 hr |
| Sep 3, 3:30 AM HST | Flash Flood Watch | HFO | 45 hr |
| Sep 3, 2:46 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 3, 3:24 PM HST | High Surf Advisory | HFO | 5 days |
| Sep 4, 1:41 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 4, 3:06 PM HST | Flash Flood Warning | HFO | 6 hr |
| Sep 5, 3:42 PM HST | Areal Flood Advisory | HFO | 4 hr |
| Sep 6, 2:28 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 6, 4:26 PM HST | Flash Flood Warning | HFO | 3 hr |
| Sep 10, 6:19 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 11, 4:44 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 11, 6:54 PM HST | Flash Flood Warning | HFO | 3 hr |
| Sep 11, 9:45 PM HST | Flash Flood Warning | HFO | 3 hr |
| Sep 12, 4:51 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 12, 7:12 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 13, 3:06 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 14, 7:46 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 15, 2:51 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 15, 3:41 PM HST | Flash Flood Warning | HFO | 6 hr |
| Sep 16, 12:18 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 16, 1:04 PM HST | Tsunami Watch | HEB | 4 min |
| Sep 16, 1:08 PM HST | Tsunami Watch | HEB | 2 hr |
| Sep 16, 1:57 PM HST | Flash Flood Warning | HFO | 3 hr |
| Sep 16, 3:23 PM HST | Tsunami Advisory | HEB | 16 hr |
| Sep 16, 4:56 PM HST | Flash Flood Warning | HFO | 3 hr |
| Sep 16, 7:33 PM HST | Areal Flood Advisory | HFO | 117 min |
| Sep 16, 8:15 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 16, 9:00 PM HST | Flash Flood Warning | HFO | 3 hr |
| Sep 16, 9:28 PM HST | Areal Flood Advisory | HFO | 2 hr |
| Sep 17, 1:41 PM HST | Areal Flood Advisory | HFO | 5 hr |
| Sep 17, 3:07 PM HST | High Surf Advisory | HFO | 25 hr |
| Sep 17, 6:04 PM HST | Flash Flood Warning | HFO | 3 hr |
| Sep 19, 3:05 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 20, 6:47 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 20, 10:00 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 20, 1:03 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 20, 3:37 PM HST | Flash Flood Watch | HFO | 23 hr |
| Sep 20, 3:57 PM HST | Areal Flood Advisory | HFO | 9 hr |
| Sep 21, 3:20 AM HST | High Surf Advisory | HFO | 25 hr |
| Sep 21, 3:39 PM HST | Areal Flood Advisory | HFO | 5 hr |
| Sep 23, 3:51 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 24, 2:54 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 24, 5:42 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 25, 3:33 AM HST | Flash Flood Watch | HFO | 3 days |
| Sep 25, 11:00 AM HST | Tropical Storm Watch | HFO | 6 days |
| Sep 25, 11:00 AM HST | Tropical Storm Watch | HFO | 6 days |
| Sep 25, 11:00 AM HST | Tropical Storm Watch | HFO | 42 hr |
| Sep 25, 8:39 PM HST | Areal Flood Advisory | HFO | 6 hr |
| Sep 26, 2:34 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 26, 9:35 AM HST | Wind Advisory | HFO | 29 hr |
| Oct 3, 6:11 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Oct 3, 8:24 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Oct 3, 11:23 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Oct 4, 2:11 AM HST | Areal Flood Advisory | HFO | 2 hr |
| Oct 6, 5:17 AM HST | Areal Flood Advisory | HFO | 9 hr |
| Oct 6, 11:55 AM HST | Wind Advisory | HFO | 10 hr |
| Oct 6, 1:59 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Oct 6, 4:53 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Oct 9, 3:39 PM HST | High Surf Advisory | HFO | 36 hr |
| Oct 16, 12:18 PM HST | High Surf Advisory | HFO | 51 hr |
| Oct 16, 2:37 PM HST | Areal Flood Advisory | HFO | 6 hr |
| Oct 16, 6:23 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Oct 16, 7:48 PM HST | Flash Flood Warning | HFO | 3 hr |
| Oct 16, 11:01 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Oct 17, 1:37 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Oct 17, 2:59 PM HST | Flash Flood Warning | HFO | 3 hr |
| Oct 21, 3:26 AM HST | High Surf Advisory | HFO | 6 days |
| Oct 29, 3:43 AM HST | High Surf Advisory | HFO | 56 hr |
| Nov 13, 6:53 PM HST | Winter Storm Warning | HFO | 15 hr |
| Nov 14, 3:44 AM HST | Wind Advisory | HFO | 12 hr |
| Nov 14, 6:20 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Nov 18, 12:56 PM HST | Winter Weather Advisory | HFO | 15 hr |
| Nov 18, 12:57 PM HST | Flash Flood Watch | HFO | 4 days |
| Nov 18, 10:22 PM HST | Areal Flood Advisory | HFO | 6 hr |
| Nov 19, 4:10 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Nov 19, 6:55 AM HST | Areal Flood Advisory | HFO | 6 hr |
| Nov 19, 1:21 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Nov 28, 8:03 AM HST | Wind Advisory | HFO | 55 hr |
| Dec 10, 4:26 AM HST | Wind Advisory | HFO | 40 hr |
| Dec 16, 9:33 AM HST | Wind Advisory | HFO | 6 days |
| Dec 19, 3:13 AM HST | Winter Weather Advisory | HFO | 9 hr |
| Dec 19, 9:11 PM HST | Winter Weather Advisory | HFO | 56 hr |
| Dec 20, 12:39 AM HST | High Wind Warning | HFO | 39 hr |
| Dec 20, 1:06 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Dec 20, 3:57 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Dec 20, 1:54 PM HST | Wind Advisory | HFO | 50 hr |
| Dec 22, 4:48 PM HST | Areal Flood Advisory | HFO | 87 min |
| Dec 22, 5:56 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Dec 22, 8:29 PM HST | Winter Weather Advisory | HFO | 12 hr |
| Dec 25, 3:22 PM HST | Wind Advisory | HFO | 48 hr |
| Dec 25, 3:23 PM HST | Winter Weather Advisory | HFO | 16 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 | 17 |
| Flash Flood Watch | 9 |
| Areal Flood Advisory | 104 |
| Winter | |
| Blizzard Warning | 2 |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 8 |
| Wind and dust | |
| High Wind Warning | 7 |
| High Wind Watch | 1 |
| Wind Advisory | 27 |
| Tropical | |
| Tropical Storm Watch | 6 |
| Coast and beach | |
| High Surf Warning | 2 |
| Tsunami Watch | 2 |
| High Surf Advisory | 22 |
| Tsunami Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20142016
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.