Weather alerts in Hawaii County, Hawaii, 2016

164 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Hawaii County and its neighbors

Each county as a circle sized by its count in 2016. Tap one for its archive.

Alerts: 164
Warnings: 29
Watches: 15
Advisories: 119
Busiest month: December35 alerts
Busiest day: August 23, 20166 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

Hawaii County, 2016

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	0			1	0%
Flash flood warnings	10	5	50%	7	100%	196 min

Each office's whole area, 2016

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Honolulu, HI: severe thunderstorm warnings	0			1	0%
NWS Honolulu, HI: flash flood warnings	34	13	62%	32	53%	118 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 3, 2:56 PM HST	High Surf Advisory	HFO	4 days
Jan 8, 6:41 PM HST	Wind Advisory	HFO	9 hr
Jan 9, 3:40 AM HST	High Wind Warning	HFO	17 hr
Jan 12, 5:12 AM HST	Wind Advisory	HFO	10 hr
Jan 14, 3:31 PM HST	High Surf Advisory	HFO	60 hr
Jan 19, 3:29 PM HST	High Surf Advisory	HFO	60 hr
Jan 24, 3:53 PM HST	High Surf Advisory	HFO	72 hr
Jan 24, 3:53 PM HST	Wind Advisory	HFO	24 hr
Jan 26, 3:35 PM HST	High Surf Warning	HFO	48 hr
Jan 28, 3:15 PM HST	High Surf Advisory	HFO	24 hr
Feb 6, 9:28 AM HST	High Wind Warning	HFO	37 hr
Feb 7, 3:41 AM HST	Wind Advisory	HFO	12 hr
Feb 9, 4:06 AM HST	High Surf Warning	HFO	72 hr
Feb 9, 3:37 PM HST	High Surf Advisory	HFO	60 hr
Feb 13, 3:20 PM HST	High Surf Advisory	HFO	5 days
Feb 15, 3:45 PM HST	Wind Advisory	HFO	72 hr
Feb 20, 3:45 PM HST	Wind Advisory	HFO	44 hr
Feb 21, 3:34 AM HST	High Surf Warning	HFO	6 days
Feb 22, 3:26 PM HST	High Surf Advisory	HFO	4 days
Feb 22, 7:18 PM HST	Wind Advisory	HFO	8 hr
Feb 24, 7:02 AM HST	Wind Advisory	HFO	15 hr
Feb 24, 9:57 PM HST	High Wind Warning	HFO	6 hr
Feb 29, 3:39 PM HST	High Surf Advisory	HFO	50 hr
Mar 1, 8:44 AM HST	Wind Advisory	HFO	12 hr
Mar 1, 10:04 PM HST	High Surf Advisory	HFO	60 hr
Mar 2, 4:02 AM HST	Wind Advisory	HFO	24 hr
Mar 8, 3:48 PM HST	Wind Advisory	HFO	11 hr
Mar 9, 2:43 AM HST	High Wind Warning	HFO	25 hr
Mar 9, 2:43 AM HST	Wind Advisory	HFO	61 hr
Mar 15, 3:08 PM HST	Wind Advisory	HFO	48 hr
Mar 23, 3:07 PM HST	Areal Flood Advisory	HFO	3 hr
Mar 24, 7:18 PM HST	Areal Flood Advisory	HFO	3 hr
Mar 25, 2:06 PM HST	Areal Flood Advisory	HFO	3 hr
Mar 25, 2:38 PM HST	Flash Flood Warning	HFO	12 hr
Mar 25, 3:06 PM HST	Flash Flood Watch	HFO	24 hr
Mar 26, 3:34 AM HST	Wind Advisory	HFO	36 hr
Mar 28, 6:55 AM HST	Wind Advisory	HFO	10 hr
Mar 28, 4:45 PM HST	High Wind Warning	HFO	11 hr
Mar 29, 3:33 AM HST	Wind Advisory	HFO	12 hr
Mar 29, 3:08 PM HST	High Surf Advisory	HFO	60 hr
Mar 29, 3:29 PM HST	High Wind Warning	HFO	24 hr
Mar 30, 3:22 PM HST	Wind Advisory	HFO	12 hr
Mar 31, 8:18 AM HST	High Surf Warning	HFO	7 hr
Apr 5, 2:13 AM HST	Areal Flood Advisory	HFO	3 hr
Apr 5, 3:37 PM HST	Wind Advisory	HFO	44 hr
May 7, 3:22 AM HST	High Surf Advisory	HFO	48 hr
May 8, 4:35 AM HST	Areal Flood Advisory	HFO	3 hr
May 24, 2:20 PM HST	Areal Flood Advisory	HFO	3 hr
May 24, 5:17 PM HST	Areal Flood Advisory	HFO	3 hr
May 28, 5:04 PM HST	Areal Flood Advisory	HFO	3 hr
May 28, 10:18 PM HST	Areal Flood Advisory	HFO	6 hr
Jun 2, 7:07 PM HST	Areal Flood Advisory	HFO	5 hr
Jun 4, 11:39 PM HST	Areal Flood Advisory	HFO	3 hr
Jun 10, 3:46 PM HST	High Surf Advisory	HFO	7 days
Jun 14, 12:34 PM HST	Areal Flood Advisory	HFO	6 hr
Jun 22, 11:10 AM HST	High Surf Advisory	HFO	28 hr
Jun 30, 3:33 PM HST	Wind Advisory	HFO	56 hr
Jul 7, 3:22 PM HST	High Surf Advisory	HFO	48 hr
Jul 18, 3:56 PM HST	Areal Flood Advisory	HFO	3 hr
Jul 18, 7:33 PM HST	Areal Flood Advisory	HFO	3 hr
Jul 21, 8:47 AM HST	Flash Flood Watch	HFO	4 days
Jul 21, 11:00 AM HST	Tropical Storm Watch	HFO	54 hr
Jul 21, 10:48 PM HST	Tropical Storm Warning	HFO	3 days
Jul 23, 7:17 AM HST	Areal Flood Advisory	HFO	3 hr
Jul 23, 8:33 AM HST	Flash Flood Warning	HFO	3 hr
Jul 23, 11:27 AM HST	Areal Flood Advisory	HFO	3 hr
Jul 23, 2:09 PM HST	Flash Flood Warning	HFO	6 hr
Jul 23, 7:58 PM HST	Areal Flood Advisory	HFO	3 hr
Jul 23, 9:29 PM HST	Flash Flood Warning	HFO	9 hr
Aug 3, 4:04 PM HST	Areal Flood Advisory	HFO	3 hr
Aug 5, 3:22 PM HST	Flash Flood Watch	HFO	60 hr
Aug 13, 1:18 PM HST	Areal Flood Advisory	HFO	3 hr
Aug 13, 4:02 PM HST	Areal Flood Advisory	HFO	3 hr
Aug 14, 2:59 PM HST	Areal Flood Advisory	HFO	3 hr
Aug 20, 7:30 PM HST	Areal Flood Advisory	HFO	3 hr
Aug 21, 6:05 PM HST	Areal Flood Advisory	HFO	3 hr
Aug 21, 8:46 PM HST	Areal Flood Advisory	HFO	3 hr
Aug 22, 3:29 PM HST	Areal Flood Advisory	HFO	3 hr
Aug 22, 11:48 PM HST	Areal Flood Advisory	HFO	3 hr
Aug 23, 12:43 AM HST	Areal Flood Advisory	HFO	2 hr
Aug 23, 2:41 AM HST	Areal Flood Advisory	HFO	3 hr
Aug 23, 3:04 AM HST	Flash Flood Watch	HFO	37 hr
Aug 23, 12:43 PM HST	Areal Flood Advisory	HFO	3 hr
Aug 23, 2:04 PM HST	Areal Flood Advisory	HFO	3 hr
Aug 23, 2:21 PM HST	Special Weather Statement	HFO	114 min
Aug 23, 4:40 PM HST	Areal Flood Advisory	HFO	3 hr
Aug 24, 2:30 PM HST	Areal Flood Advisory	HFO	3 hr
Aug 24, 5:27 PM HST	Areal Flood Advisory	HFO	63 min
Aug 29, 11:00 AM HST	Hurricane Watch	HFO	27 hr
Aug 29, 11:11 AM HST	Flash Flood Watch	HFO	66 hr
Aug 30, 5:00 AM HST	Tropical Storm Warning	HFO	46 hr
Aug 30, 11:00 AM HST	Hurricane Warning	HFO	27 hr
Aug 31, 7:20 AM HST	Areal Flood Advisory	HFO	3 hr
Aug 31, 2:00 PM HST	Areal Flood Advisory	HFO	6 hr
Aug 31, 6:25 PM HST	Areal Flood Advisory	HFO	3 hr
Aug 31, 9:11 PM HST	Areal Flood Advisory	HFO	6 hr
Sep 1, 2:18 AM HST	Wind Advisory	HFO	13 hr
Sep 1, 5:13 AM HST	Hurricane Watch	HFO	49 hr
Sep 2, 1:36 AM HST	Areal Flood Advisory	HFO	3 hr
Sep 3, 1:41 PM HST	Areal Flood Advisory	HFO	3 hr
Sep 3, 4:28 PM HST	Areal Flood Advisory	HFO	3 hr
Sep 3, 5:00 PM HST	Flash Flood Warning	HFO	3 hr
Sep 4, 2:55 PM HST	Areal Flood Advisory	HFO	3 hr
Sep 13, 3:22 AM HST	Flash Flood Watch	HFO	4 days
Sep 13, 2:09 PM HST	Areal Flood Advisory	HFO	3 hr
Sep 13, 7:21 PM HST	Areal Flood Advisory	HFO	3 hr
Sep 13, 8:21 PM HST	Areal Flood Advisory	HFO	3 hr
Sep 13, 9:30 PM HST	Areal Flood Advisory	HFO	3 hr
Sep 14, 4:11 AM HST	Areal Flood Advisory	HFO	3 hr
Sep 14, 4:36 PM HST	Areal Flood Advisory	HFO	3 hr
Sep 14, 5:11 PM HST	Flash Flood Warning	HFO	3 hr
Sep 14, 7:21 PM HST	Flash Flood Warning	HFO	3 hr
Sep 15, 3:23 AM HST	Areal Flood Advisory	HFO	3 hr
Sep 24, 7:50 PM HST	Areal Flood Advisory	HFO	3 hr
Sep 30, 10:26 PM HST	Areal Flood Advisory	HFO	94 min
Oct 3, 3:29 AM HST	Flash Flood Watch	HFO	60 hr
Oct 3, 2:10 PM HST	Areal Flood Advisory	HFO	3 hr
Oct 4, 2:26 PM HST	Areal Flood Advisory	HFO	3 hr
Oct 4, 3:10 PM HST	Flash Flood Warning	HFO	3 hr
Oct 4, 8:16 PM HST	Areal Flood Advisory	HFO	6 hr
Oct 5, 2:14 AM HST	Areal Flood Advisory	HFO	8 hr
Oct 6, 6:33 PM HST	Areal Flood Advisory	HFO	87 min
Oct 16, 5:14 PM HST	Wind Advisory	HFO	10 hr
Oct 21, 4:19 AM HST	Wind Advisory	HFO	15 hr
Oct 21, 2:20 PM HST	Wind Advisory	HFO	50 hr
Nov 13, 3:54 AM HST	High Surf Advisory	HFO	48 hr
Nov 16, 3:35 PM HST	Wind Advisory	HFO	22 hr
Nov 22, 3:28 AM HST	Wind Advisory	HFO	5 days
Nov 29, 3:35 AM HST	Wind Advisory	HFO	48 hr
Nov 30, 3:59 PM HST	Flash Flood Watch	HFO	4 days
Nov 30, 4:02 PM HST	Winter Storm Watch	HFO	11 hr
Dec 1, 3:17 AM HST	Winter Storm Warning	HFO	54 hr
Dec 1, 8:03 AM HST	Areal Flood Advisory	HFO	8 hr
Dec 1, 3:21 PM HST	Wind Advisory	HFO	9 hr
Dec 2, 4:37 AM HST	Areal Flood Advisory	HFO	3 hr
Dec 2, 7:16 AM HST	Areal Flood Advisory	HFO	3 hr
Dec 2, 8:10 AM HST	Flash Flood Warning	HFO	3 hr
Dec 2, 11:10 AM HST	Flash Flood Warning	HFO	5 hr
Dec 2, 3:28 PM HST	Winter Storm Watch	HFO	24 hr
Dec 3, 3:35 PM HST	Winter Storm Warning	HFO	36 hr
Dec 4, 3:49 PM HST	Areal Flood Advisory	HFO	3 hr
Dec 5, 3:11 AM HST	Flash Flood Watch	HFO	13 hr
Dec 5, 4:03 AM HST	Areal Flood Advisory	HFO	3 hr
Dec 5, 7:01 AM HST	Areal Flood Advisory	HFO	3 hr
Dec 5, 11:08 AM HST	Wind Advisory	HFO	17 hr
Dec 6, 4:00 PM HST	Winter Weather Advisory	HFO	47 hr
Dec 8, 7:04 AM HST	Areal Flood Advisory	HFO	3 hr
Dec 8, 7:48 AM HST	Tsunami Watch	HEB	52 min
Dec 9, 5:06 PM HST	Winter Weather Advisory	HFO	10 hr
Dec 10, 3:20 AM HST	Winter Storm Warning	HFO	24 hr
Dec 11, 3:34 AM HST	Wind Advisory	HFO	39 hr
Dec 11, 3:34 AM HST	Winter Weather Advisory	HFO	6 hr
Dec 12, 6:59 PM HST	High Wind Warning	HFO	20 hr
Dec 13, 3:21 PM HST	Wind Advisory	HFO	9 hr
Dec 15, 3:17 AM HST	Wind Advisory	HFO	12 hr
Dec 15, 3:19 PM HST	High Wind Warning	HFO	66 hr
Dec 17, 3:38 PM HST	Winter Weather Advisory	HFO	18 hr
Dec 18, 12:58 AM HST	Areal Flood Advisory	HFO	6 hr
Dec 18, 6:43 AM HST	Areal Flood Advisory	HFO	9 hr
Dec 18, 9:29 AM HST	Winter Storm Warning	HFO	18 hr
Dec 18, 9:32 AM HST	Wind Advisory	HFO	18 hr
Dec 18, 3:33 PM HST	Areal Flood Advisory	HFO	3 hr
Dec 24, 3:42 PM HST	Wind Advisory	HFO	48 hr
Dec 30, 6:49 PM HST	Winter Weather Advisory	HFO	9 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	1
Flooding
Flash Flood Warning	10
Flash Flood Watch	9
Areal Flood Advisory	65
Winter
Winter Storm Warning	4
Winter Storm Watch	2
Winter Weather Advisory	5
Wind and dust
High Wind Warning	8
Wind Advisory	33
Tropical
Hurricane Warning	1
Tropical Storm Warning	2
Hurricane Watch	2
Tropical Storm Watch	1
Coast and beach
High Surf Warning	4
Tsunami Watch	1
High Surf Advisory	16

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2015 2017

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.