Weather alerts in Hawaii County, Hawaii, 2017

182 weather alerts in 2017, 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 2017. Tap one for its archive.

Alerts: 182
Warnings: 32
Watches: 18
Advisories: 118
Busiest month: March29 alerts
Busiest day: March 10, 20178 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, 2017

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	2	0	100%	0
Flash flood warnings	4	1	75%	6	83%	70 min

Each office's whole area, 2017

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Honolulu, HI: severe thunderstorm warnings	5	1	80%	4	50%	16 min
NWS Honolulu, HI: flash flood warnings	31	10	68%	25	84%	114 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, 3:41 PM HST	Wind Advisory	HFO	12 hr
Jan 1, 2:00 AM HST	Areal Flood Advisory	HFO	6 hr
Jan 4, 7:19 PM HST	Wind Advisory	HFO	8 hr
Jan 5, 3:24 AM HST	High Wind Warning	HFO	12 hr
Jan 5, 3:35 PM HST	Wind Advisory	HFO	55 hr
Jan 12, 9:38 AM HST	High Surf Warning	HFO	48 hr
Jan 14, 9:21 AM HST	High Surf Advisory	HFO	18 hr
Jan 16, 9:05 AM HST	Wind Advisory	HFO	7 hr
Jan 16, 3:36 PM HST	High Wind Warning	HFO	12 hr
Jan 17, 3:39 AM HST	Wind Advisory	HFO	36 hr
Jan 17, 3:43 PM HST	High Surf Warning	HFO	60 hr
Jan 17, 3:43 PM HST	High Surf Advisory	HFO	4 days
Jan 20, 3:42 PM HST	High Wind Watch	HFO	12 hr
Jan 21, 3:25 AM HST	High Wind Warning	HFO	37 hr
Jan 22, 10:37 AM HST	Wind Advisory	HFO	11 hr
Jan 23, 9:23 PM HST	Winter Weather Advisory	HFO	12 hr
Jan 24, 6:33 AM HST	Areal Flood Advisory	HFO	3 hr
Jan 24, 8:21 AM HST	Areal Flood Advisory	HFO	3 hr
Jan 24, 3:48 PM HST	Areal Flood Advisory	HFO	3 hr
Jan 24, 6:44 PM HST	Areal Flood Advisory	HFO	3 hr
Jan 24, 8:10 PM HST	High Wind Watch	HFO	7 hr
Jan 24, 9:46 PM HST	Areal Flood Advisory	HFO	3 hr
Jan 25, 2:50 AM HST	High Wind Warning	HFO	13 hr
Jan 25, 3:38 PM HST	Wind Advisory	HFO	42 hr
Jan 29, 3:29 AM HST	Wind Advisory	HFO	48 hr
Jan 31, 9:44 AM HST	High Surf Warning	HFO	66 hr
Feb 1, 3:41 AM HST	High Surf Advisory	HFO	48 hr
Feb 2, 3:32 PM HST	Wind Advisory	HFO	26 hr
Feb 4, 3:33 PM HST	Wind Advisory	HFO	56 hr
Feb 5, 4:25 PM HST	High Surf Advisory	HFO	4 days
Feb 6, 9:02 AM HST	High Wind Warning	HFO	54 hr
Feb 8, 3:26 PM HST	Wind Advisory	HFO	12 hr
Feb 9, 3:31 AM HST	High Wind Warning	HFO	3 days
Feb 10, 3:27 PM HST	High Surf Advisory	HFO	24 hr
Feb 11, 3:47 PM HST	Winter Weather Advisory	HFO	18 hr
Feb 11, 6:57 PM HST	Special Weather Statement	HFO	108 min
Feb 11, 9:12 PM HST	Special Weather Statement	HFO	63 min
Feb 12, 12:18 AM HST	Special Weather Statement	HFO	57 min
Feb 12, 3:10 AM HST	High Surf Advisory	HFO	6 hr
Feb 12, 3:31 AM HST	Wind Advisory	HFO	12 hr
Feb 14, 9:28 AM HST	High Surf Advisory	HFO	48 hr
Feb 19, 3:34 AM HST	Wind Advisory	HFO	41 hr
Feb 21, 4:59 PM HST	Areal Flood Advisory	HFO	3 hr
Feb 22, 1:29 PM HST	Special Weather Statement	HFO	91 min
Feb 22, 2:58 PM HST	Special Weather Statement	HFO	92 min
Feb 26, 3:27 PM HST	Winter Storm Watch	HFO	36 hr
Feb 27, 7:36 AM HST	Flash Flood Watch	HFO	68 hr
Feb 28, 3:00 AM HST	Winter Storm Warning	HFO	25 hr
Mar 1, 3:50 AM HST	Blizzard Warning	HFO	24 hr
Mar 4, 3:07 PM HST	High Surf Advisory	HFO	61 hr
Mar 7, 12:01 PM HST	Wind Advisory	HFO	8 hr
Mar 7, 1:37 PM HST	Special Weather Statement	HFO	38 min
Mar 7, 3:52 PM HST	Flash Flood Watch	HFO	59 hr
Mar 7, 8:01 PM HST	Areal Flood Advisory	HFO	3 hr
Mar 7, 8:12 PM HST	High Wind Warning	HFO	43 hr
Mar 7, 8:18 PM HST	Winter Storm Watch	HFO	19 hr
Mar 8, 3:29 PM HST	Winter Storm Warning	HFO	24 hr
Mar 9, 12:02 PM HST	Severe Thunderstorm Watch	SPC	6 hr
Mar 9, 2:53 PM HST	Special Weather Statement	HFO	22 min
Mar 9, 3:10 PM HST	Severe Thunderstorm Warning	HFO	50 min
Mar 9, 3:20 PM HST	Wind Advisory	HFO	12 hr
Mar 9, 4:06 PM HST	Areal Flood Advisory	HFO	3 hr
Mar 9, 5:29 PM HST	Severe Thunderstorm Warning	HFO	31 min
Mar 9, 5:34 PM HST	Flash Flood Warning	HFO	3 hr
Mar 9, 6:44 PM HST	Areal Flood Advisory	HFO	3 hr
Mar 9, 8:27 PM HST	Areal Flood Advisory	HFO	3 hr
Mar 11, 1:09 PM HST	Special Weather Statement	HFO	96 min
Mar 11, 1:24 PM HST	Special Weather Statement	HFO	36 min
Mar 11, 3:05 PM HST	Special Weather Statement	HFO	55 min
Mar 11, 3:15 PM HST	Areal Flood Advisory	HFO	3 hr
Mar 12, 12:38 AM HST	Areal Flood Advisory	HFO	5 hr
Mar 18, 7:21 PM HST	High Surf Advisory	HFO	44 hr
Mar 24, 4:16 AM HST	Areal Flood Advisory	HFO	3 hr
Mar 24, 7:05 AM HST	Areal Flood Advisory	HFO	3 hr
Mar 25, 3:24 AM HST	High Surf Warning	HFO	36 hr
Mar 25, 3:24 AM HST	High Surf Advisory	HFO	3 days
Mar 30, 3:53 PM HST	High Surf Warning	HFO	41 hr
Apr 1, 8:49 AM HST	High Surf Advisory	HFO	19 hr
Apr 5, 3:43 AM HST	Wind Advisory	HFO	24 hr
Apr 13, 2:52 AM HST	Wind Advisory	HFO	24 hr
Apr 13, 11:41 PM HST	Areal Flood Advisory	HFO	3 hr
Apr 18, 8:08 PM HST	Areal Flood Advisory	HFO	3 hr
Apr 28, 1:12 AM HST	Areal Flood Advisory	HFO	2 hr
Apr 28, 3:40 AM HST	High Surf Advisory	HFO	48 hr
Apr 28, 10:03 AM HST	Flash Flood Watch	HFO	53 hr
Apr 28, 10:09 AM HST	Winter Storm Watch	HFO	29 hr
Apr 29, 3:58 AM HST	High Wind Warning	HFO	36 hr
Apr 29, 2:54 PM HST	Wind Advisory	HFO	13 hr
Apr 29, 2:59 PM HST	Winter Storm Warning	HFO	25 hr
Apr 30, 3:30 PM HST	Flash Flood Watch	HFO	24 hr
Apr 30, 3:39 PM HST	Winter Storm Warning	HFO	24 hr
Apr 30, 3:48 PM HST	Wind Advisory	HFO	11 hr
May 1, 5:26 AM HST	Areal Flood Advisory	HFO	3 hr
May 14, 10:11 PM HST	Winter Weather Advisory	HFO	11 hr
May 15, 12:44 PM HST	Areal Flood Advisory	HFO	3 hr
May 15, 3:14 PM HST	Areal Flood Advisory	HFO	3 hr
May 15, 3:44 PM HST	Winter Weather Advisory	HFO	17 hr
May 15, 5:33 PM HST	Areal Flood Advisory	HFO	3 hr
May 15, 5:35 PM HST	Areal Flood Advisory	HFO	3 hr
May 25, 3:25 PM HST	High Surf Advisory	HFO	3 days
May 28, 2:22 PM HST	Areal Flood Advisory	HFO	3 hr
Jun 14, 2:21 PM HST	Areal Flood Advisory	HFO	3 hr
Jun 14, 5:06 PM HST	Areal Flood Advisory	HFO	114 min
Jun 19, 3:56 PM HST	High Surf Advisory	HFO	66 hr
Jul 28, 4:11 PM HST	Areal Flood Advisory	HFO	3 hr
Aug 20, 1:28 PM HST	Areal Flood Advisory	HFO	3 hr
Aug 20, 4:01 PM HST	Areal Flood Advisory	HFO	3 hr
Aug 20, 7:00 PM HST	Areal Flood Advisory	HFO	2 hr
Aug 21, 1:41 PM HST	Areal Flood Advisory	HFO	3 hr
Aug 21, 2:47 PM HST	Areal Flood Advisory	HFO	3 hr
Aug 24, 3:10 PM HST	Wind Advisory	HFO	12 hr
Aug 31, 3:41 AM HST	High Surf Advisory	HFO	72 hr
Sep 1, 3:28 PM HST	Wind Advisory	HFO	12 hr
Sep 1, 11:20 PM HST	Areal Flood Advisory	HFO	3 hr
Sep 2, 1:56 AM HST	Areal Flood Advisory	HFO	109 min
Sep 2, 3:52 AM HST	Areal Flood Advisory	HFO	53 min
Sep 4, 6:37 AM HST	Wind Advisory	HFO	34 hr
Sep 9, 6:53 PM HST	Areal Flood Advisory	HFO	3 hr
Sep 14, 2:41 PM HST	Areal Flood Advisory	HFO	3 hr
Sep 23, 8:43 PM HST	Areal Flood Advisory	HFO	3 hr
Oct 5, 3:15 AM HST	Wind Advisory	HFO	24 hr
Oct 12, 7:34 PM HST	Special Weather Statement	HFO	116 min
Oct 12, 7:40 PM HST	Special Weather Statement	HFO	110 min
Oct 12, 8:11 PM HST	Areal Flood Advisory	HFO	3 hr
Oct 12, 9:37 PM HST	Special Weather Statement	HFO	83 min
Oct 13, 6:44 AM HST	Areal Flood Advisory	HFO	3 hr
Oct 13, 3:40 PM HST	High Surf Advisory	HFO	7 days
Oct 13, 7:36 PM HST	Areal Flood Advisory	HFO	3 hr
Oct 14, 7:47 PM HST	Wind Advisory	HFO	6 days
Oct 22, 3:34 AM HST	Flash Flood Watch	HFO	3 days
Oct 22, 3:35 AM HST	High Wind Watch	HFO	36 hr
Oct 22, 2:07 PM HST	Areal Flood Advisory	HFO	6 hr
Oct 23, 3:20 PM HST	High Wind Warning	HFO	36 hr
Oct 23, 11:15 PM HST	Areal Flood Advisory	HFO	3 hr
Oct 24, 1:59 AM HST	Areal Flood Advisory	HFO	3 hr
Oct 24, 4:40 AM HST	Areal Flood Advisory	HFO	6 hr
Oct 24, 8:26 AM HST	Flash Flood Warning	HFO	6 hr
Oct 25, 2:39 PM HST	Areal Flood Advisory	HFO	3 hr
Oct 30, 6:20 PM HST	Areal Flood Advisory	HFO	3 hr
Nov 11, 5:15 PM HST	Areal Flood Advisory	HFO	3 hr
Nov 11, 9:16 PM HST	Winter Weather Advisory	HFO	12 hr
Nov 12, 4:39 PM HST	Areal Flood Advisory	HFO	3 hr
Nov 12, 7:26 PM HST	Special Weather Statement	HFO	34 min
Nov 17, 11:39 AM HST	High Wind Warning	HFO	64 hr
Nov 20, 3:13 AM HST	Wind Advisory	HFO	17 hr
Nov 20, 7:49 PM HST	High Wind Warning	HFO	7 hr
Nov 21, 3:04 AM HST	Wind Advisory	HFO	7 hr
Nov 22, 3:36 PM HST	Wind Advisory	HFO	4 days
Nov 26, 3:32 AM HST	Flash Flood Watch	HFO	5 days
Nov 26, 3:32 AM HST	Winter Storm Watch	HFO	36 hr
Nov 27, 3:44 PM HST	Winter Storm Warning	HFO	22 hr
Nov 27, 10:45 PM HST	Areal Flood Advisory	HFO	9 hr
Nov 28, 1:20 PM HST	Winter Weather Advisory	HFO	62 hr
Nov 29, 2:09 AM HST	Areal Flood Advisory	HFO	6 hr
Nov 29, 8:00 AM HST	Areal Flood Advisory	HFO	3 hr
Nov 30, 4:05 AM HST	Areal Flood Advisory	HFO	6 hr
Nov 30, 9:58 AM HST	Areal Flood Advisory	HFO	3 hr
Nov 30, 11:55 AM HST	Flash Flood Warning	HFO	9 hr
Nov 30, 10:43 PM HST	Areal Flood Advisory	HFO	3 hr
Dec 1, 8:18 PM HST	Areal Flood Advisory	HFO	3 hr
Dec 1, 8:58 PM HST	Wind Advisory	HFO	42 hr
Dec 1, 8:58 PM HST	Winter Weather Advisory	HFO	7 hr
Dec 1, 11:18 PM HST	Areal Flood Advisory	HFO	9 hr
Dec 2, 7:50 AM HST	Areal Flood Advisory	HFO	3 hr
Dec 2, 8:09 AM HST	Flash Flood Watch	HFO	20 hr
Dec 2, 8:09 AM HST	Winter Weather Advisory	HFO	20 hr
Dec 4, 3:26 PM HST	Wind Advisory	HFO	30 hr
Dec 6, 5:41 AM HST	Wind Advisory	HFO	22 hr
Dec 13, 3:38 AM HST	High Wind Watch	HFO	12 hr
Dec 13, 3:32 PM HST	High Wind Warning	HFO	24 hr
Dec 14, 3:29 AM HST	Wind Advisory	HFO	32 hr
Dec 15, 6:48 PM HST	Wind Advisory	HFO	8 hr
Dec 16, 10:22 AM HST	High Wind Warning	HFO	37 hr
Dec 17, 3:23 PM HST	Flash Flood Watch	HFO	4 days
Dec 17, 3:23 PM HST	Winter Storm Watch	HFO	13 hr
Dec 18, 4:04 AM HST	Winter Storm Warning	HFO	3 days
Dec 20, 4:21 PM HST	Areal Flood Advisory	HFO	3 hr
Dec 20, 5:35 PM HST	Flash Flood Warning	HFO	3 hr
Dec 21, 3:35 AM HST	High Wind Warning	HFO	6 hr
Dec 21, 1:59 PM HST	Areal Flood Advisory	HFO	3 hr
Dec 26, 4:05 AM HST	Wind Advisory	HFO	35 hr
Dec 28, 3:05 AM HST	Wind Advisory	HFO	13 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
Severe Thunderstorm Warning	2
Severe Thunderstorm Watch	1
Special Weather Statement	14
Flooding
Flash Flood Warning	4
Flash Flood Watch	8
Areal Flood Advisory	60
Winter
Blizzard Warning	1
Winter Storm Warning	6
Winter Storm Watch	5
Winter Weather Advisory	8
Wind and dust
High Wind Warning	14
High Wind Watch	4
Wind Advisory	34
Coast and beach
High Surf Warning	5
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 2016 2018

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.