Special Marine Warnings in Hawaii
1,483 special marine warnings since 1986. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of special marine warnings reaches back to 1986.
Special Marine Warnings by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Special Marine Warnings
- 1,483
- Busiest year
- 2018150 special marine warnings
- Average year
- 64over 23 years on file
Over time
By year
Before October 2007 these were issued for whole counties, and a storm crossing three counties was often three warnings; since then one polygon follows the storm. The count changed with the practice, not only with the weather.
By month of the year
The latest special marine warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 17, 9:34 AM HST | Special Marine Warning | HFO | 56 min | |
| Sep 7, 10:35 PM HST | Special Marine Warning | HFO | 53 min | |
| Aug 15, 5:17 PM HST | Special Marine Warning | HFO | 118 min | |
| May 15, 3:15 PM HST | Special Marine Warning | HFO | 2 hr | |
| May 15, 1:23 PM HST | Special Marine Warning | HFO | 67 min | |
| May 15, 12:27 PM HST | Special Marine Warning | HFO | 2 hr | |
| May 15, 10:34 AM HST | Special Marine Warning | HFO | 116 min | |
| May 15, 8:43 AM HST | Special Marine Warning | HFO | 2 hr | |
| May 15, 7:16 AM HST | Special Marine Warning | HFO | 119 min | |
| Apr 10, 6:49 PM HST | Special Marine Warning | HFO | 99 min | |
| Apr 10, 5:26 PM HST | Special Marine Warning | HFO | 94 min | |
| Apr 8, 10:09 AM HST | Special Marine Warning | HFO | 108 min |
Nearby
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.