Alert archive / Hawaii / Kauai County
Weather alerts in Kauai County, Hawaii, 2015
105 weather alerts in 2015, 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 2015. Tap one for its archive.
- Alerts
- 105
- Warnings
- 15
- Watches
- 9
- Advisories
- 81
- Busiest month
- September18 alerts
- Busiest day
- August 18, 20153 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, 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 | 4 | 2 | 50% | 2 | 100% | 71 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 |
|---|---|---|---|
| Dec 31, 3:33 PM HST | High Surf Advisory | HFO | 24 hr |
| Jan 1, 3:55 PM HST | Wind Advisory | HFO | 41 hr |
| Jan 2, 5:22 PM HST | Areal Flood Advisory | HFO | 113 min |
| Jan 6, 3:30 AM HST | High Surf Advisory | HFO | 60 hr |
| Jan 9, 3:55 AM HST | High Surf Advisory | HFO | 35 hr |
| Jan 11, 3:36 PM HST | High Surf Advisory | HFO | 48 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 24, 3:45 PM HST | High Surf Advisory | HFO | 24 hr |
| Jan 25, 3:26 PM HST | High Surf Advisory | HFO | 12 hr |
| Jan 27, 3:41 PM HST | High Surf Advisory | HFO | 35 hr |
| Jan 30, 3:19 AM HST | High Surf Advisory | HFO | 60 hr |
| Feb 1, 5:16 PM HST | Wind Advisory | HFO | 46 hr |
| Feb 2, 8:48 AM HST | High Surf Advisory | HFO | 43 hr |
| Feb 4, 3:39 PM HST | High Surf Advisory | HFO | 4 days |
| Feb 8, 3:45 PM HST | Wind Advisory | HFO | 35 hr |
| Feb 9, 3:30 AM HST | High Surf Warning | HFO | 60 hr |
| Feb 9, 3:41 PM HST | High Surf Advisory | HFO | 4 days |
| 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, 3:44 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Feb 14, 4:01 PM HST | High Surf Warning | HFO | 36 hr |
| Feb 16, 4:34 AM HST | High Surf Advisory | HFO | 11 hr |
| Feb 19, 3:32 AM HST | High Surf Advisory | HFO | 60 hr |
| Feb 23, 9:30 PM HST | High Surf Advisory | HFO | 61 hr |
| Mar 1, 3:02 PM HST | High Surf Advisory | HFO | 29 hr |
| Mar 12, 3:46 AM HST | High Surf Warning | HFO | 48 hr |
| Mar 12, 3:46 AM HST | High Surf Advisory | HFO | 72 hr |
| Mar 20, 3:33 PM HST | High Surf Advisory | HFO | 24 hr |
| Mar 22, 3:05 AM HST | High Surf Advisory | HFO | 4 hr |
| Mar 29, 9:41 AM HST | High Surf Advisory | HFO | 18 hr |
| Mar 31, 1:49 AM HST | Areal Flood Advisory | HFO | 5 hr |
| Apr 15, 3:23 PM HST | High Surf Advisory | HFO | 12 hr |
| Apr 19, 11:20 AM HST | High Surf Advisory | HFO | 4 days |
| Apr 26, 3:32 PM HST | High Surf Advisory | HFO | 5 days |
| May 5, 3:13 PM HST | High Surf Advisory | HFO | 40 hr |
| May 30, 3:11 PM HST | High Surf Advisory | HFO | 4 days |
| 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 21, 11:15 AM HST | Areal Flood Advisory | HFO | 6 hr |
| Jul 22, 11:26 AM HST | Flash Flood Warning | HFO | 3 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 |
| Aug 4, 9:53 AM HST | Flash Flood Watch | HFO | 26 hr |
| Aug 17, 11:46 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 18, 7:52 AM HST | Flash Flood Watch | HFO | 32 hr |
| Aug 18, 12:02 PM HST | Areal Flood Advisory | HFO | 4 hr |
| Aug 20, 3:44 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 20, 5:18 PM HST | Flash Flood Warning | HFO | 3 hr |
| Aug 21, 3:42 PM HST | Flash Flood Watch | HFO | 7 days |
| Aug 22, 9:23 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 23, 1:56 PM HST | Areal Flood Advisory | HFO | 9 hr |
| Aug 24, 7:06 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 24, 11:21 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 24, 11:30 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 25, 1:03 AM HST | Flash Flood Warning | HFO | 3 hr |
| Aug 31, 10:20 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Aug 31, 1:13 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 3, 3:30 AM HST | Flash Flood Watch | HFO | 45 hr |
| Sep 3, 3:24 PM HST | High Surf Advisory | HFO | 5 days |
| Sep 4, 1:48 PM HST | Areal Flood Advisory | HFO | 5 hr |
| Sep 4, 5:32 PM HST | Flash Flood Warning | HFO | 5 hr |
| Sep 5, 12:03 AM HST | Flash Flood Watch | HFO | 40 hr |
| Sep 5, 11:33 AM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 5, 2:22 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 6, 4:36 PM HST | Areal Flood Advisory | HFO | 3 hr |
| Sep 9, 3:07 PM HST | Flash Flood Watch | HFO | 4 days |
| Sep 10, 5:06 PM HST | Areal Flood Advisory | HFO | 8 hr |
| Sep 12, 3:44 AM HST | Areal Flood Advisory | HFO | 6 hr |
| Sep 12, 7:14 AM HST | Areal Flood Advisory | HFO | 10 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, 3:23 PM HST | Tsunami Advisory | HEB | 16 hr |
| Sep 17, 3:07 PM HST | High Surf Advisory | HFO | 25 hr |
| Sep 21, 3:20 AM HST | High Surf Advisory | HFO | 25 hr |
| Sep 26, 9:35 AM HST | Wind Advisory | HFO | 29 hr |
| Oct 2, 3:24 AM HST | High Surf Advisory | HFO | 62 hr |
| Oct 16, 12:18 PM HST | High Surf Advisory | HFO | 51 hr |
| Oct 21, 3:26 AM HST | High Surf Advisory | HFO | 6 days |
| Oct 26, 3:32 PM HST | High Surf Warning | HFO | 48 hr |
| Oct 28, 3:44 PM HST | High Surf Advisory | HFO | 12 hr |
| Oct 29, 3:43 AM HST | High Surf Warning | HFO | 36 hr |
| Oct 29, 3:43 AM HST | High Surf Advisory | HFO | 56 hr |
| Nov 5, 7:51 AM HST | High Surf Advisory | HFO | 12 days |
| Nov 14, 3:44 AM HST | Wind Advisory | HFO | 12 hr |
| Nov 18, 12:33 PM HST | High Surf Advisory | HFO | 23 hr |
| Nov 18, 12:57 PM HST | Flash Flood Watch | HFO | 4 days |
| Nov 20, 12:31 PM HST | Areal Flood Advisory | HFO | 6 hr |
| Nov 20, 7:17 PM HST | Areal Flood Advisory | HFO | 118 min |
| Nov 27, 3:29 PM HST | High Surf Advisory | HFO | 3 days |
| Dec 1, 2:22 PM HST | High Surf Advisory | HFO | 67 hr |
| Dec 4, 3:53 PM HST | High Surf Warning | HFO | 60 hr |
| Dec 7, 3:43 AM HST | High Surf Advisory | HFO | 9 hr |
| Dec 7, 3:38 PM HST | High Surf Warning | HFO | 48 hr |
| Dec 9, 3:38 PM HST | High Surf Advisory | HFO | 35 hr |
| Dec 15, 4:10 PM HST | High Surf Advisory | HFO | 4 days |
| Dec 16, 9:33 AM HST | Wind Advisory | HFO | 6 days |
| Dec 20, 2:53 AM HST | High Surf Warning | HFO | 37 hr |
| Dec 21, 3:33 PM HST | High Surf Advisory | HFO | 36 hr |
| Dec 23, 3:33 AM HST | High Surf Advisory | HFO | 12 hr |
| Dec 25, 3:34 PM HST | High Surf Advisory | HFO | 3 days |
| Dec 30, 3:24 PM HST | High Surf Advisory | 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 |
|---|---|
| Flooding | |
| Flash Flood Warning | 4 |
| Flash Flood Watch | 7 |
| Areal Flood Advisory | 23 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 7 |
| Coast and beach | |
| High Surf Warning | 10 |
| Tsunami Watch | 2 |
| High Surf Advisory | 50 |
| 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.