Alert archive / Hawaii / Honolulu County

Weather alerts in Honolulu County, Hawaii, 2022

104 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Honolulu County and its neighbors

Each county as a circle sized by its count in 2022. Tap one for its archive.

Alerts: 104
Warnings: 16
Watches: 6
Advisories: 78
Busiest month: December23 alerts
Busiest day: December 19, 20227 alerts

Over time

By month

Warning verification

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

Honolulu County, 2022

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	1	1	0%	4	50%	14 min
Flash flood warnings	2	2	0%	4	75%	55 min

Each office's whole area, 2022

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Honolulu, HI: severe thunderstorm warnings	6	2	67%	7	43%	27 min
NWS Honolulu, HI: flash flood warnings	15	7	53%	17	65%	93 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, 5:12 PM HST	Areal Flood Advisory	HFO	11 hr
Dec 31, 6:35 PM HST	Severe Thunderstorm Watch	SPC	353 days
Jan 1, 2:34 AM HST	Flash Flood Warning	HFO	3 hr
Jan 1, 6:10 AM HST	Flood Watch	HFO	38 hr
Jan 1, 8:16 AM HST	Areal Flood Advisory	HFO	5 hr
Jan 1, 1:16 PM HST	Flash Flood Warning	HFO	6 hr
Jan 2, 11:24 AM HST	Special Weather Statement	HFO	66 min
Jan 2, 11:51 AM HST	Areal Flood Advisory	HFO	3 hr
Jan 3, 10:19 AM HST	Areal Flood Advisory	HFO	90 min
Jan 4, 10:12 AM HST	Areal Flood Advisory	HFO	3 hr
Jan 5, 3:00 AM HST	High Surf Advisory	HFO	3 days
Jan 5, 4:12 PM HST	Areal Flood Advisory	HFO	77 min
Jan 5, 9:49 PM HST	High Surf Warning	HFO	18 hr
Jan 7, 3:17 PM HST	High Surf Warning	HFO	5 days
Jan 12, 3:22 PM HST	High Surf Advisory	HFO	5 days
Jan 14, 5:49 PM HST	Areal Flood Advisory	HFO	94 min
Jan 15, 12:40 AM HST	Tsunami Advisory	HEB	7 hr
Jan 18, 3:35 PM HST	High Surf Advisory	HFO	36 hr
Jan 21, 3:48 AM HST	High Surf Warning	HFO	48 hr
Jan 23, 3:45 AM HST	High Surf Advisory	HFO	47 hr
Jan 29, 3:25 AM HST	High Surf Advisory	HFO	24 hr
Feb 1, 3:36 AM HST	High Surf Advisory	HFO	4 hr
Feb 1, 7:16 AM HST	High Surf Warning	HFO	20 hr
Feb 3, 3:18 PM HST	High Surf Advisory	HFO	3 days
Feb 8, 3:30 PM HST	High Surf Advisory	HFO	24 hr
Feb 14, 3:50 PM HST	High Surf Advisory	HFO	71 hr
Feb 15, 3:40 AM HST	High Surf Warning	HFO	36 hr
Feb 24, 3:58 AM HST	High Surf Warning	HFO	60 hr
Feb 26, 3:30 PM HST	High Surf Advisory	HFO	48 hr
Mar 3, 3:26 PM HST	High Surf Advisory	HFO	24 hr
Mar 9, 2:32 PM HST	Areal Flood Advisory	HFO	3 hr
Mar 13, 3:25 PM HST	High Surf Advisory	HFO	24 hr
Mar 21, 8:29 AM HST	High Surf Advisory	HFO	55 hr
Mar 21, 3:01 PM HST	Areal Flood Advisory	HFO	91 min
Apr 1, 3:26 PM HST	High Surf Advisory	HFO	24 hr
Apr 16, 4:52 PM HST	Areal Flood Advisory	HFO	3 hr
Apr 23, 3:36 PM HST	High Surf Advisory	HFO	24 hr
May 2, 7:55 PM HST	High Surf Advisory	HFO	68 hr
May 27, 3:25 AM HST	High Surf Advisory	HFO	48 hr
May 30, 3:37 PM HST	High Surf Advisory	HFO	28 hr
May 31, 7:58 PM HST	High Surf Warning	HFO	16 hr
May 31, 7:58 PM HST	High Surf Advisory	HFO	32 hr
Jun 26, 2:02 PM HST	High Surf Advisory	HFO	37 hr
Jul 13, 3:16 AM HST	High Surf Advisory	HFO	37 hr
Jul 15, 3:28 PM HST	High Surf Warning	HFO	4 days
Jul 19, 3:34 AM HST	High Surf Advisory	HFO	12 hr
Jul 30, 3:34 PM HST	Wind Advisory	HFO	48 hr
Aug 6, 5:07 AM HST	Areal Flood Advisory	HFO	96 min
Aug 6, 2:22 PM HST	Areal Flood Advisory	HFO	109 min
Aug 16, 7:57 PM HST	Areal Flood Advisory	HFO	6 hr
Aug 21, 7:56 PM HST	High Surf Advisory	HFO	20 hr
Aug 23, 6:10 PM HST	Areal Flood Advisory	HFO	2 hr
Sep 10, 12:04 PM HST	Areal Flood Advisory	HFO	3 hr
Sep 10, 4:54 PM HST	Areal Flood Advisory	HFO	96 min
Sep 11, 12:38 PM HST	Areal Flood Advisory	HFO	3 hr
Sep 11, 2:27 PM HST	Areal Flood Advisory	HFO	108 min
Sep 11, 3:26 PM HST	High Surf Advisory	HFO	36 hr
Sep 16, 2:18 PM HST	Areal Flood Advisory	HFO	3 hr
Sep 16, 3:26 PM HST	Areal Flood Advisory	HFO	3 hr
Sep 22, 3:23 AM HST	High Surf Advisory	HFO	18 hr
Sep 22, 5:28 PM HST	Areal Flood Advisory	HFO	76 min
Oct 7, 4:41 PM HST	High Surf Advisory	HFO	11 hr
Oct 8, 3:31 PM HST	High Surf Advisory	HFO	48 hr
Oct 11, 1:33 PM HST	Areal Flood Advisory	HFO	3 hr
Oct 12, 4:37 PM HST	Areal Flood Advisory	HFO	2 hr
Oct 14, 10:06 AM HST	High Surf Advisory	HFO	23 hr
Oct 17, 3:50 AM HST	High Surf Advisory	HFO	24 hr
Oct 19, 3:53 AM HST	High Surf Advisory	HFO	48 hr
Nov 4, 7:21 AM HST	Areal Flood Advisory	HFO	4 hr
Nov 13, 4:00 AM HST	High Surf Advisory	HFO	23 hr
Nov 15, 9:22 AM HST	High Surf Advisory	HFO	42 hr
Nov 17, 8:20 AM HST	High Surf Advisory	HFO	25 hr
Nov 18, 6:37 PM HST	Areal Flood Advisory	HFO	85 min
Nov 19, 2:52 PM HST	Wind Advisory	HFO	49 hr
Nov 21, 3:08 AM HST	High Surf Advisory	HFO	24 hr
Nov 23, 3:30 AM HST	Wind Advisory	HFO	57 hr
Nov 23, 3:08 PM HST	High Surf Warning	HFO	4 days
Nov 23, 8:30 PM HST	High Surf Advisory	HFO	55 hr
Nov 27, 3:30 AM HST	High Surf Advisory	HFO	12 hr
Nov 27, 3:32 PM HST	Flood Watch	HFO	24 hr
Nov 28, 7:57 PM HST	High Surf Advisory	HFO	31 hr
Nov 30, 9:28 PM HST	High Surf Advisory	HFO	12 hr
Dec 1, 9:55 AM HST	High Surf Warning	HFO	24 hr
Dec 1, 9:55 AM HST	High Surf Advisory	HFO	41 hr
Dec 6, 3:15 AM HST	High Surf Advisory	HFO	36 hr
Dec 8, 10:00 AM HST	High Surf Advisory	HFO	54 hr
Dec 15, 3:37 PM HST	High Surf Warning	HFO	36 hr
Dec 15, 10:37 PM HST	Areal Flood Advisory	HFO	3 hr
Dec 17, 3:24 AM HST	High Surf Advisory	HFO	24 hr
Dec 17, 3:59 PM HST	High Wind Watch	HFO	11 hr
Dec 17, 3:59 PM HST	High Wind Warning	HFO	3 days
Dec 17, 7:19 PM HST	Flood Watch	HFO	58 hr
Dec 18, 3:12 AM HST	High Surf Warning	HFO	4 days
Dec 18, 6:25 AM HST	Areal Flood Advisory	HFO	3 hr
Dec 18, 3:43 PM HST	High Surf Advisory	HFO	39 min
Dec 19, 7:31 AM HST	Special Weather Statement	HFO	29 min
Dec 19, 7:45 AM HST	Areal Flood Advisory	HFO	6 hr
Dec 19, 7:59 AM HST	Severe Thunderstorm Watch	SPC	12 hr
Dec 19, 9:54 AM HST	Special Weather Statement	HFO	21 min
Dec 19, 10:34 AM HST	Special Weather Statement	HFO	26 min
Dec 19, 11:36 AM HST	Severe Thunderstorm Warning	HFO	24 min
Dec 19, 3:35 PM HST	Wind Advisory	HFO	25 hr
Dec 21, 3:32 PM HST	High Surf Advisory	HFO	5 days
Dec 29, 3:02 PM HST	High Surf Advisory	HFO	39 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	1
Severe Thunderstorm Watch	2
Special Weather Statement	4
Flooding
Flash Flood Warning	2
Flood Watch	3
Areal Flood Advisory	28
Wind and dust
High Wind Warning	1
High Wind Watch	1
Wind Advisory	4
Coast and beach
High Surf Warning	12
High Surf Advisory	45
Tsunami Advisory	1

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2021 2023

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.