Alert archive / Hawaii / Honolulu County
Weather alerts in Honolulu County, Hawaii, 2008
64 weather alerts in 2008, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Honolulu County and its neighbors
Each county as a circle sized by its count in 2008. Tap one for its archive.
- Alerts
- 64
- Warnings
- 10
- Watches
- 6
- Advisories
- 48
- Busiest month
- December21 alerts
- Busiest day
- December 11, 20084 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Honolulu County, 2008
| 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 | 6 | 3 | 50% | 2 | 100% | 105 min |
Each office's whole area, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Honolulu, HI: tornado warnings | 1 | 1 | 0% | 2 | 50% | 9 min |
| NWS Honolulu, HI: severe thunderstorm warnings | 1 | 0 | 100% | 2 | 0% | |
| NWS Honolulu, HI: flash flood warnings | 36 | 10 | 72% | 24 | 92% | 169 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 27, 1:20 PM HST | Wind Advisory | HFO | 38 hr |
| Feb 2, 2:03 PM HST | Flash Flood Watch | HFO | 62 hr |
| Feb 6, 6:53 PM HST | Flash Flood Warning | HFO | 3 hr |
| Feb 7, 2:41 PM HST | Flash Flood Warning | HFO | 3 hr |
| Feb 11, 3:22 AM HST | High Surf Advisory | HFO | 48 hr |
| Feb 13, 3:42 AM HST | High Surf Warning | HFO | 51 hr |
| Feb 15, 3:31 AM HST | High Surf Advisory | HFO | 24 hr |
| Feb 17, 3:36 PM HST | High Surf Advisory | HFO | 48 hr |
| Feb 20, 9:46 AM HST | High Surf Advisory | HFO | 18 hr |
| Feb 23, 3:15 PM HST | High Surf Advisory | HFO | 4 days |
| Feb 27, 3:35 PM HST | High Surf Advisory | HFO | 17 hr |
| Mar 4, 3:34 AM HST | High Surf Advisory | HFO | 12 hr |
| Mar 11, 3:36 PM HST | High Surf Advisory | HFO | 48 hr |
| Mar 16, 3:47 PM HST | High Surf Advisory | HFO | 4 days |
| Apr 3, 3:24 PM HST | High Surf Advisory | HFO | 48 hr |
| Apr 7, 3:54 AM HST | High Surf Advisory | HFO | 24 hr |
| Apr 9, 3:32 AM HST | Flash Flood Watch | HFO | 38 hr |
| Apr 13, 3:35 PM HST | High Surf Advisory | HFO | 3 days |
| Apr 16, 3:46 PM HST | High Surf Advisory | HFO | 3 days |
| Apr 17, 3:25 AM HST | Flash Flood Watch | HFO | 13 hr |
| Apr 28, 9:49 AM HST | High Surf Advisory | HFO | 4 days |
| Jun 6, 10:10 AM HST | High Surf Advisory | HFO | 54 hr |
| Jun 12, 12:47 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Jun 12, 3:10 AM HST | Areal Flood Advisory | HFO | 2 hr |
| Jun 12, 4:35 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Jun 13, 3:30 AM HST | High Surf Advisory | HFO | 3 days |
| Jul 9, 12:18 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Jul 21, 8:02 PM HST | High Surf Advisory | HFO | 31 hr |
| Jul 28, 2:57 PM HST | High Surf Advisory | HFO | 20 hr |
| Sep 3, 3:16 PM HST | High Surf Advisory | HFO | 6 days |
| Oct 11, 3:15 PM HST | High Surf Advisory | HFO | 3 days |
| Oct 15, 10:56 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Oct 15, 6:45 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Oct 23, 7:57 AM HST | High Surf Advisory | HFO | 43 hr |
| Oct 27, 3:33 PM HST | High Surf Advisory | HFO | 3 days |
| Nov 12, 3:36 PM HST | High Surf Advisory | HFO | 36 hr |
| Nov 16, 6:31 PM HST | High Surf Advisory | HFO | 69 hr |
| Nov 20, 3:49 AM HST | Flash Flood Watch | HFO | 3 days |
| Nov 22, 7:13 AM HST | Wind Advisory | HFO | 5 hr |
| Nov 22, 8:06 AM HST | Areal Flood Advisory | HFO | 119 min |
| Nov 22, 11:49 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Nov 27, 3:48 PM HST | High Surf Warning | HFO | 48 hr |
| Nov 27, 3:48 PM HST | High Surf Advisory | HFO | 3 days |
| Dec 1, 11:56 AM HST | High Surf Warning | HFO | 21 hr |
| Dec 1, 11:56 AM HST | High Surf Advisory | HFO | 40 hr |
| Dec 3, 10:20 AM HST | High Surf Warning | HFO | 65 hr |
| Dec 5, 3:33 PM HST | High Surf Advisory | HFO | 26 hr |
| Dec 10, 3:41 AM HST | Flash Flood Watch | HFO | 4 days |
| Dec 10, 3:42 AM HST | High Wind Watch | HFO | 11 hr |
| Dec 10, 2:55 PM HST | Wind Advisory | HFO | 25 hr |
| Dec 11, 2:56 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Dec 11, 4:12 AM HST | Flash Flood Warning | HFO | 12 hr |
| Dec 11, 10:11 AM HST | High Surf Advisory | HFO | 41 hr |
| Dec 11, 5:45 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Dec 12, 5:26 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Dec 12, 5:49 PM HST | Flash Flood Warning | HFO | 3 hr |
| Dec 12, 7:28 PM HST | Flash Flood Warning | HFO | 107 min |
| Dec 13, 1:27 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Dec 13, 2:47 PM HST | Flash Flood Warning | HFO | 6 hr |
| Dec 13, 9:03 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Dec 15, 9:20 PM HST | Areal Flood Advisory | HFO | 6 hr |
| Dec 24, 3:46 AM HST | High Surf Advisory | HFO | 4 days |
| Dec 27, 8:05 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Dec 31, 1:33 AM HST | Areal Flood Advisory | HFO | 4 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 | 6 |
| Flash Flood Watch | 5 |
| Areal Flood Advisory | 16 |
| Wind and dust | |
| High Wind Watch | 1 |
| Wind Advisory | 3 |
| Coast and beach | |
| High Surf Warning | 4 |
| High Surf Advisory | 29 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20072009
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.