Alert archive / Hawaii / Kauai County
Weather alerts in Kauai 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.
Kauai County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 76
- Warnings
- 19
- Watches
- 7
- Advisories
- 50
- Busiest month
- March22 alerts
- Busiest day
- March 9, 20126 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Kauai County, 2012
| 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 | 10 | 6 | 40% | 25 | 100% | 212 min |
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 |
|---|---|---|---|
| Dec 31, 3:29 PM HST | High Surf Advisory | HFO | 48 hr |
| 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, 3:23 PM HST | High Surf Advisory | HFO | 25 hr |
| Jan 17, 9:20 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Jan 17, 10:29 AM HST | Flash Flood Warning | HFO | 5 hr |
| Jan 17, 11:43 AM HST | Wind Advisory | HFO | 4 hr |
| Jan 17, 3:21 PM HST | Flash Flood Warning | HFO | 74 min |
| Jan 20, 3:40 AM HST | High Surf Advisory | HFO | 24 hr |
| Jan 24, 3:15 PM HST | High Surf Advisory | HFO | 24 hr |
| Jan 27, 3:31 PM HST | High Surf Advisory | HFO | 42 hr |
| Jan 28, 7:29 AM HST | High Surf Warning | HFO | 20 hr |
| Jan 29, 3:31 PM HST | High Surf Warning | HFO | 48 hr |
| Jan 30, 3:32 PM HST | High Surf Advisory | HFO | 41 hr |
| Feb 2, 9:31 AM HST | High Surf Advisory | HFO | 23 hr |
| Feb 5, 8:51 AM HST | High Surf Advisory | HFO | 31 hr |
| Feb 6, 3:21 PM HST | High Surf Warning | HFO | 3 days |
| Feb 6, 3:21 PM HST | High Surf Advisory | HFO | 4 days |
| Feb 11, 3:24 PM HST | High Surf Advisory | HFO | 72 hr |
| Feb 15, 3:30 AM HST | High Surf Advisory | HFO | 72 hr |
| Feb 24, 1:36 AM HST | Areal Flood Advisory | HFO | 2 hr |
| Feb 24, 2:01 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Feb 24, 3:18 PM HST | Flash Flood Watch | HFO | 60 hr |
| Feb 25, 1:06 PM HST | Areal Flood Advisory | HFO | 12 hr |
| Feb 26, 12:46 AM HST | Areal Flood Advisory | HFO | 5 hr |
| Feb 26, 12:46 AM HST | Flash Flood Warning | HFO | 15 hr |
| Feb 29, 3:05 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Feb 29, 5:42 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Mar 3, 7:54 AM HST | Areal Flood Advisory | HFO | 2 hr |
| Mar 3, 9:08 AM HST | Areal Flood Advisory | HFO | 50 min |
| Mar 3, 2:46 PM HST | Areal Flood Advisory | HFO | 6 hr |
| Mar 3, 3:12 PM HST | High Surf Advisory | HFO | 5 days |
| Mar 3, 8:46 PM HST | Flash Flood Warning | HFO | 12 hr |
| Mar 4, 7:12 AM HST | Flash Flood Watch | HFO | 68 hr |
| Mar 4, 8:49 AM HST | Flash Flood Warning | HFO | 33 hr |
| Mar 4, 2:58 PM HST | Wind Advisory | HFO | 3 days |
| Mar 5, 3:20 PM HST | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 5, 5:36 PM HST | Flash Flood Warning | HFO | 15 hr |
| Mar 6, 8:25 AM HST | Flash Flood Warning | HFO | 3 hr |
| Mar 6, 11:08 AM HST | Flash Flood Warning | HFO | 5 hr |
| Mar 8, 9:22 AM HST | Flash Flood Watch | HFO | 42 hr |
| Mar 8, 11:48 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Mar 9, 12:51 AM HST | Flash Flood Warning | HFO | 3 hr |
| Mar 9, 2:05 AM HST | Flash Flood Warning | HFO | 21 hr |
| Mar 9, 3:55 AM HST | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 9, 9:53 AM HST | Severe Thunderstorm Watch | SPC | 4 hr |
| Mar 9, 10:26 AM HST | Wind Advisory | HFO | 41 hr |
| Mar 11, 7:16 AM HST | Wind Advisory | HFO | 32 hr |
| Apr 13, 3:38 PM HST | High Surf Advisory | HFO | 51 hr |
| May 20, 8:44 PM HST | Wind Advisory | HFO | 4 days |
| Jun 17, 3:30 PM HST | Wind Advisory | HFO | 34 hr |
| Jul 4, 7:15 AM HST | High Surf Advisory | HFO | 61 hr |
| Aug 31, 2:57 AM HST | Tsunami Watch | HEB | 35 min |
| Sep 22, 9:02 AM HST | High Surf Advisory | HFO | 55 hr |
| Sep 26, 3:46 PM HST | High Surf Advisory | HFO | 60 hr |
| Oct 7, 3:07 PM HST | High Surf Advisory | HFO | 43 hr |
| Oct 8, 3:08 PM HST | High Surf Warning | HFO | 48 hr |
| Oct 9, 10:06 AM HST | High Surf Advisory | HFO | 47 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 3, 3:40 PM HST | High Surf Advisory | HFO | 4 days |
| Nov 15, 3:36 PM HST | High Surf Advisory | HFO | 37 hr |
| Nov 26, 3:33 PM HST | High Surf Advisory | HFO | 36 hr |
| Nov 29, 2:57 PM HST | High Surf Advisory | HFO | 37 hr |
| Dec 2, 6:45 PM HST | High Surf Advisory | HFO | 21 hr |
| Dec 4, 8:24 PM HST | Areal Flood Advisory | HFO | 6 hr |
| Dec 7, 3:05 PM HST | High Surf Advisory | HFO | 48 hr |
| Dec 16, 11:00 AM HST | Wind Advisory | HFO | 53 hr |
| Dec 24, 3:29 PM HST | High Surf Warning | HFO | 36 hr |
| Dec 26, 3:00 AM HST | High Surf Advisory | HFO | 6 hr |
| Dec 26, 3:48 PM HST | High Surf Warning | HFO | 39 hr |
| Dec 26, 3:48 PM HST | High Surf Advisory | HFO | 47 hr |
| Dec 28, 3:27 PM HST | High Surf Warning | HFO | 4 days |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Watch | 3 |
| Flooding | |
| Flash Flood Warning | 10 |
| Flash Flood Watch | 3 |
| Areal Flood Advisory | 12 |
| Wind and dust | |
| Wind Advisory | 7 |
| Coast and beach | |
| High Surf Warning | 8 |
| Tsunami Warning | 1 |
| Tsunami Watch | 1 |
| High Surf Advisory | 30 |
| 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.