Alert archive / Hawaii / 2018
Weather alerts in Hawaii, April 2018
87 weather alerts in April 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in April 2018. Tap one for its archive.
- Alerts
- 87
- Warnings
- 32
- Watches
- 5
- Advisories
- 44
- Busiest day
- April 15, 201826 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
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 | Counties | Lasted |
|---|---|---|---|---|
| Apr 2, 3:10 AM HST | Wind Advisory | HFO | Hawaii | 11 hr |
| Apr 2, 8:00 AM HST | Areal Flood Advisory | HFO | Kauai | 3 hr |
| Apr 2, 1:57 PM HST | High Wind Warning | HFO | Hawaii | 14 hr |
| Apr 2, 4:53 PM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Apr 2, 6:15 PM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Apr 2, 6:41 PM HST | Flash Flood Warning | HFO | Kalawao | 3 hr |
| Apr 2, 6:43 PM HST | Flash Flood Warning | HFO | Kalawao | 3 hr |
| Apr 2, 6:59 PM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Apr 3, 3:37 AM HST | Wind Advisory | HFO | Hawaii | 12 hr |
| Apr 3, 10:02 AM HST | Flash Flood Watch | HFO | Honolulu, Kauai | 20 hr |
| Apr 3, 3:58 PM HST | Areal Flood Advisory | HFO | Hawaii | 3 hr |
| Apr 3, 9:04 PM HST | Wind Advisory | HFO | Hawaii | 19 hr |
| Apr 4, 3:28 AM HST | Small Craft Advisory | HFO | 13 hr | |
| Apr 5, 7:09 PM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Apr 6, 9:31 AM HST | Small Craft Advisory | HFO | 18 hr | |
| Apr 6, 3:28 PM HST | Flash Flood Watch | HFO | Hawaii, Honolulu, Kauai, Kalawao | 72 hr |
| Apr 7, 1:47 PM HST | Areal Flood Advisory | HFO | Hawaii | 3 hr |
| Apr 7, 5:19 PM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Apr 8, 4:46 AM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Apr 8, 12:44 PM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Apr 8, 1:07 PM HST | Areal Flood Advisory | HFO | Kauai | 3 hr |
| Apr 8, 3:31 PM HST | Small Craft Advisory | HFO | 4 days | |
| Apr 8, 3:33 PM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 29 hr |
| Apr 8, 3:43 PM HST | Areal Flood Advisory | HFO | Hawaii | 3 hr |
| Apr 8, 6:22 PM HST | Areal Flood Advisory | HFO | Hawaii | 3 hr |
| Apr 9, 5:17 AM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Apr 9, 8:31 PM HST | High Surf Warning | HFO | Honolulu, Kauai, Kalawao | 7 hr |
| Apr 10, 3:41 AM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 12 hr |
| Apr 10, 3:42 AM HST | Small Craft Advisory | HFO | 60 hr | |
| Apr 11, 11:10 AM HST | Areal Flood Advisory | HFO | Hawaii | 3 hr |
| Apr 12, 9:18 PM HST | Small Craft Advisory | HFO | 14 days | |
| Apr 13, 12:36 AM HST | Areal Flood Advisory | HFO | Hawaii | 96 min |
| Apr 13, 1:43 PM HST | Areal Flood Advisory | HFO | Hawaii | 3 hr |
| Apr 13, 1:43 PM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 4 days |
| Apr 13, 3:39 PM HST | Areal Flood Advisory | HFO | Hawaii | 3 hr |
| Apr 13, 6:23 PM HST | Areal Flood Advisory | HFO | Hawaii | 80 min |
| Apr 13, 6:31 PM HST | Areal Flood Advisory | HFO | Honolulu | 3 hr |
| Apr 13, 7:37 PM HST | Flash Flood Warning | HFO | Honolulu | 3 hr |
| Apr 13, 8:11 PM HST | Special Weather Statement | HFO | Honolulu | 49 min |
| Apr 13, 8:45 PM HST | Flash Flood Warning | HFO | Honolulu | 3 hr |
| Apr 13, 8:47 PM HST | Special Marine Warning | HFO | 58 min | |
| Apr 13, 9:38 PM HST | Special Marine Warning | HFO | 27 min | |
| Apr 14, 1:06 AM HST | Areal Flood Advisory | HFO | Kauai | 6 hr |
| Apr 14, 2:13 AM HST | Special Weather Statement | HFO | Kauai | 62 min |
| Apr 14, 3:21 AM HST | Flash Flood Watch | HFO | Hawaii, Honolulu, Kauai, Kalawao | 48 hr |
| Apr 14, 3:31 AM HST | High Surf Warning | HFO | Honolulu, Kauai, Kalawao | 12 hr |
| Apr 14, 4:15 AM HST | Flash Flood Warning | HFO | Kauai | 3 hr |
| Apr 14, 7:03 AM HST | Flash Flood Warning | HFO | Kauai | 3 hr |
| Apr 14, 9:57 AM HST | Flash Flood Warning | HFO | Kauai | 3 hr |
| Apr 14, 2:43 PM HST | Areal Flood Advisory | HFO | Kauai | 3 hr |
| Apr 14, 3:11 PM HST | Areal Flood Advisory | HFO | Hawaii | 3 hr |
| Apr 14, 4:14 PM HST | Special Marine Warning | HFO | 46 min | |
| Apr 14, 4:56 PM HST | Special Marine Warning | HFO | 49 min | |
| Apr 14, 5:15 PM HST | Flash Flood Warning | HFO | Kauai | 9 hr |
| Apr 14, 5:24 PM HST | Areal Flood Advisory | HFO | Hawaii | 109 min |
| Apr 14, 5:42 PM HST | Special Marine Warning | HFO | 93 min | |
| Apr 14, 7:08 PM HST | Special Marine Warning | HFO | 72 min | |
| Apr 14, 10:37 PM HST | Areal Flood Advisory | HFO | Honolulu | 3 hr |
| Apr 14, 11:40 PM HST | Special Marine Warning | HFO | 2 hr | |
| Apr 15, 12:44 AM HST | Special Marine Warning | HFO | 54 min | |
| Apr 15, 12:56 AM HST | Special Weather Statement | HFO | 64 min | |
| Apr 15, 1:26 AM HST | Special Marine Warning | HFO | 64 min | |
| Apr 15, 1:50 AM HST | Areal Flood Advisory | HFO | Hawaii | 3 hr |
| Apr 15, 2:09 AM HST | Flash Flood Warning | HFO | Kauai | 24 hr |
| Apr 15, 2:24 AM HST | Special Marine Warning | HFO | 96 min | |
| Apr 15, 4:24 AM HST | Areal Flood Advisory | HFO | Honolulu | 55 min |
| Apr 15, 4:31 AM HST | Flash Flood Warning | HFO | Hawaii | 3 hr |
| Apr 15, 4:43 AM HST | Special Marine Warning | HFO | 44 min | |
| Apr 15, 4:57 AM HST | Special Marine Warning | HFO | 2 hr | |
| Apr 15, 7:12 AM HST | Flash Flood Warning | HFO | Hawaii | 3 hr |
| Apr 15, 8:06 AM HST | Special Marine Warning | HFO | 84 min | |
| Apr 15, 9:24 AM HST | Special Marine Warning | HFO | 37 min | |
| Apr 15, 12:01 PM HST | Special Weather Statement | HFO | Kauai | 59 min |
| Apr 15, 1:01 PM HST | Special Weather Statement | HFO | Kauai | 59 min |
| Apr 15, 1:57 PM HST | Special Weather Statement | HFO | Kauai | 93 min |
| Apr 15, 5:13 PM HST | Areal Flood Advisory | HFO | Hawaii | 4 hr |
| Apr 18, 3:44 AM HST | Flash Flood Watch | HFO | Hawaii, Honolulu, Kauai, Kalawao | 59 hr |
| Apr 18, 3:45 AM HST | Winter Storm Watch | HFO | Hawaii | 24 hr |
| Apr 19, 3:54 AM HST | Winter Storm Warning | HFO | Hawaii | 35 hr |
| Apr 20, 1:31 AM HST | Flash Flood Warning | HFO | Kauai | 6 hr |
| Apr 26, 2:19 PM HST | Areal Flood Advisory | HFO | Honolulu | 3 hr |
| Apr 26, 4:58 PM HST | Areal Flood Advisory | HFO | Honolulu | 7 hr |
| Apr 27, 3:25 PM HST | Small Craft Advisory | HFO | 3 days | |
| Apr 27, 3:41 PM HST | Wind Advisory | HFO | Hawaii | 48 hr |
| Apr 28, 3:22 AM HST | High Surf Warning | HFO | Kauai | 48 hr |
| Apr 28, 3:22 AM HST | High Surf Advisory | HFO | Honolulu, Kauai, Kalawao | 60 hr |
| Apr 29, 3:38 PM HST | High Wind Warning | HFO | Hawaii | 48 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Special Weather Statement | 6 |
| Flooding | |
| Flash Flood Warning | 12 |
| Flash Flood Watch | 4 |
| Areal Flood Advisory | 30 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Wind and dust | |
| High Wind Warning | 2 |
| Wind Advisory | 4 |
| Coast and beach | |
| High Surf Warning | 3 |
| High Surf Advisory | 4 |
| Marine | |
| Special Marine Warning | 14 |
| Small Craft Advisory | 6 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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. Rebuilt daily.