Alert archive / Hawaii / 2021

Weather alerts in Hawaii, December 2021

96 weather alerts in December 2021, 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 December 2021. Tap one for its archive.

Alerts: 96
Warnings: 34
Watches: 5
Advisories: 54
Busiest day: December 6, 202126 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
Nov 30, 2:07 PM HST	Areal Flood Advisory	HFO	Honolulu	70 min
Dec 1, 3:28 PM HST	Gale Watch	HFO		24 hr
Dec 1, 5:13 PM HST	Areal Flood Advisory	HFO	Kalawao	2 hr
Dec 2, 3:34 AM HST	High Wind Watch	HFO	Hawaii	12 hr
Dec 2, 3:35 AM HST	Winter Storm Watch	HFO	Hawaii	12 hr
Dec 2, 3:04 PM HST	Flood Watch	HFO	Hawaii, Honolulu, Kauai, Kalawao	5 days
Dec 2, 3:24 PM HST	Areal Flood Advisory	HFO	Kauai	3 hr
Dec 2, 3:26 PM HST	Blizzard Warning	HFO	Hawaii	3 days
Dec 2, 3:26 PM HST	High Wind Warning	HFO	Hawaii, Kalawao	3 days
Dec 2, 3:26 PM HST	Wind Advisory	HFO	Kauai, Kalawao	44 hr
Dec 2, 3:32 PM HST	Gale Warning	HFO		30 hr
Dec 2, 3:32 PM HST	Small Craft Advisory	HFO		14 days
Dec 2, 4:02 PM HST	Areal Flood Advisory	HFO	Hawaii	3 hr
Dec 3, 5:16 AM HST	Areal Flood Advisory	HFO	Kalawao	3 hr
Dec 3, 9:08 AM HST	High Surf Warning	HFO	Hawaii, Honolulu, Kauai, Kalawao	66 hr
Dec 3, 9:08 AM HST	High Surf Advisory	HFO	Hawaii, Honolulu, Kauai, Kalawao	66 hr
Dec 3, 1:32 PM HST	Areal Flood Advisory	HFO	Kalawao	3 hr
Dec 3, 6:09 PM HST	Areal Flood Advisory	HFO	Hawaii	3 hr
Dec 3, 9:06 PM HST	Areal Flood Advisory	HFO	Hawaii	92 min
Dec 3, 10:59 PM HST	Areal Flood Advisory	HFO	Hawaii	2 hr
Dec 4, 12:13 AM HST	Areal Flood Advisory	HFO	Kalawao	106 min
Dec 4, 1:59 AM HST	Flash Flood Warning	HFO	Kalawao	109 min
Dec 4, 3:09 PM HST	Wind Advisory	HFO	Hawaii, Honolulu, Kauai, Kalawao	55 hr
Dec 5, 4:33 AM HST	Areal Flood Advisory	HFO	Hawaii	111 min
Dec 5, 9:30 AM HST	Areal Flood Advisory	HFO	Hawaii	6 hr
Dec 5, 9:40 AM HST	Areal Flood Advisory	HFO	Honolulu	80 min
Dec 5, 11:51 AM HST	Areal Flood Advisory	HFO	Kalawao	3 hr
Dec 5, 12:24 PM HST	Areal Flood Advisory	HFO	Kalawao	4 hr
Dec 5, 2:30 PM HST	Areal Flood Advisory	HFO	Hawaii	86 min
Dec 5, 3:18 PM HST	Areal Flood Advisory	HFO	Kalawao	3 hr
Dec 5, 3:35 PM HST	Coastal Flood Statement	HFO	Hawaii, Honolulu, Kauai, Kalawao	42 hr
Dec 5, 3:56 PM HST	Flash Flood Warning	HFO	Hawaii	5 hr
Dec 5, 4:27 PM HST	Flash Flood Warning	HFO	Kalawao	5 hr
Dec 5, 5:33 PM HST	Areal Flood Advisory	HFO	Kalawao	6 hr
Dec 5, 6:22 PM HST	Flash Flood Warning	HFO	Kalawao	3 hr
Dec 5, 8:02 PM HST	Gale Warning	HFO		7 hr
Dec 5, 8:02 PM HST	Small Craft Advisory	HFO		10 days
Dec 5, 9:16 PM HST	Flash Flood Warning Considerable damage threat	HFO	Kalawao	12 hr
Dec 5, 9:20 PM HST	Flash Flood Warning	HFO	Kalawao	11 hr
Dec 6, 12:37 AM HST	Areal Flood Advisory	HFO	Hawaii	11 hr
Dec 6, 3:24 AM HST	Winter Weather Advisory	HFO	Hawaii	12 hr
Dec 6, 3:26 AM HST	Gale Warning	HFO		12 hr
Dec 6, 3:37 AM HST	High Surf Advisory	HFO	Hawaii, Honolulu, Kauai, Kalawao	12 hr
Dec 6, 5:54 AM HST	Special Marine Warning	HFO		2 hr
Dec 6, 7:09 AM HST	Special Marine Warning	HFO		51 min
Dec 6, 7:39 AM HST	Special Weather Statement	HFO	Hawaii	51 min
Dec 6, 7:40 AM HST	Areal Flood Advisory	HFO	Honolulu	6 hr
Dec 6, 7:57 AM HST	Areal Flood Advisory	HFO	Kauai	3 hr
Dec 6, 11:30 AM HST	Flash Flood Warning	HFO	Hawaii	2 hr
Dec 6, 12:26 PM HST	Special Marine Warning	HFO		64 min
Dec 6, 1:12 PM HST	Special Weather Statement	HFO	Honolulu	63 min
Dec 6, 1:16 PM HST	Flash Flood Warning	HFO	Honolulu	15 hr
Dec 6, 1:20 PM HST	Special Marine Warning	HFO		55 min
Dec 6, 1:43 PM HST	Areal Flood Advisory	HFO	Hawaii	3 hr
Dec 6, 2:21 PM HST	Special Marine Warning	HFO		54 min
Dec 6, 3:06 PM HST	Special Marine Warning	HFO		54 min
Dec 6, 3:52 PM HST	Special Marine Warning	HFO		53 min
Dec 6, 4:39 PM HST	Special Marine Warning	HFO		51 min
Dec 6, 6:36 PM HST	Special Marine Warning	HFO		84 min
Dec 6, 7:45 PM HST	Special Marine Warning	HFO		90 min
Dec 6, 7:59 PM HST	Special Marine Warning	HFO		61 min
Dec 6, 10:08 PM HST	Special Marine Warning	HFO		52 min
Dec 6, 10:29 PM HST	Special Marine Warning	HFO		81 min
Dec 6, 11:48 PM HST	Special Marine Warning	HFO		77 min
Dec 7, 9:29 PM HST	Special Marine Warning	HFO		61 min
Dec 7, 10:29 PM HST	Special Marine Warning	HFO		91 min
Dec 8, 12:00 AM HST	Special Marine Warning	HFO		60 min
Dec 16, 8:16 PM HST	Areal Flood Advisory	HFO	Kalawao	3 hr
Dec 16, 11:01 PM HST	Areal Flood Advisory	HFO	Kalawao	106 min
Dec 17, 1:43 AM HST	Areal Flood Advisory	HFO	Kalawao	2 hr
Dec 17, 7:03 AM HST	Areal Flood Advisory	HFO	Honolulu	89 min
Dec 17, 2:10 PM HST	Areal Flood Advisory	HFO	Kalawao	35 min
Dec 17, 2:32 PM HST	Areal Flood Advisory	HFO	Honolulu	3 hr
Dec 17, 2:39 PM HST	Flash Flood Warning	HFO	Kalawao	66 min
Dec 17, 3:55 PM HST	Areal Flood Advisory	HFO	Honolulu	2 hr
Dec 17, 7:15 PM HST	Areal Flood Advisory	HFO	Hawaii	3 hr
Dec 18, 3:26 AM HST	Small Craft Advisory	HFO		6 days
Dec 19, 12:53 AM HST	Winter Weather Advisory	HFO	Hawaii	10 hr
Dec 20, 3:00 PM HST	Areal Flood Advisory	HFO	Hawaii	98 min
Dec 20, 3:08 PM HST	High Surf Advisory	HFO	Hawaii, Honolulu, Kauai, Kalawao	5 days
Dec 21, 12:34 PM HST	Flood Watch	HFO	Hawaii	26 hr
Dec 21, 1:22 PM HST	Areal Flood Advisory	HFO	Hawaii	4 hr
Dec 21, 3:16 PM HST	Winter Weather Advisory	HFO	Hawaii	24 hr
Dec 22, 12:21 AM HST	Areal Flood Advisory	HFO	Kalawao	10 hr
Dec 22, 3:05 AM HST	Areal Flood Advisory	HFO	Hawaii	11 hr
Dec 23, 11:48 PM HST	Small Craft Advisory	HFO		7 days
Dec 30, 3:04 PM HST	Areal Flood Advisory	HFO	Kalawao	3 hr
Dec 30, 3:07 PM HST	Winter Weather Advisory	HFO	Hawaii	19 hr
Dec 30, 3:42 PM HST	Areal Flood Advisory	HFO	Hawaii	3 hr
Dec 30, 7:34 PM HST	Areal Flood Advisory	HFO	Honolulu	55 min
Dec 30, 8:29 PM HST	Flash Flood Warning	HFO	Honolulu	3 hr
Dec 31, 4:52 AM HST	Areal Flood Advisory	HFO	Kauai	3 hr
Dec 31, 6:26 AM HST	Flash Flood Warning	HFO	Kauai	3 hr
Dec 31, 9:11 AM HST	Areal Flood Advisory	HFO	Hawaii	6 hr
Dec 31, 12:18 PM HST	Areal Flood Advisory	HFO	Kalawao	4 hr
Dec 31, 1:28 PM HST	Areal Flood Advisory	HFO	Kalawao	3 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	2
Flooding
Flash Flood Warning	11
Flood Watch	2
Areal Flood Advisory	41
Winter
Blizzard Warning	1
Winter Storm Watch	1
Winter Weather Advisory	4
Wind and dust
High Wind Warning	1
High Wind Watch	1
Wind Advisory	2
Coast and beach
High Surf Warning	1
High Surf Advisory	3
Coastal Flood Statement	1
Marine
Gale Warning	3
Special Marine Warning	17
Gale Watch	1
Small Craft Advisory	4

By county

Every county with at least one alert. A county page lists each alert that covered it.

Nearby

Alerts in force now Tornadoes on record The radar archive 2020 2022

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.