Alert archive / Hawaii / 2021

Weather alerts in Hawaii, January 2021

71 weather alerts in January 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 January 2021. Tap one for its archive.

Alerts: 71
Warnings: 19
Watches: 5
Advisories: 45
Busiest day: January 18, 202115 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
Jan 1, 4:00 AM HST	Gale Warning	HFO		11 hr
Jan 2, 3:21 AM HST	High Surf Advisory	HFO	Honolulu, Kauai, Kalawao	12 hr
Jan 4, 4:37 AM HST	High Surf Advisory	HFO	Honolulu, Kauai, Kalawao	4 days
Jan 4, 4:01 PM HST	Small Craft Advisory	HFO		18 hr
Jan 5, 9:47 AM HST	Small Craft Advisory	HFO		3 days
Jan 9, 3:32 AM HST	High Surf Advisory	HFO	Honolulu, Kauai, Kalawao	48 hr
Jan 9, 3:36 AM HST	Small Craft Advisory	HFO		3 days
Jan 9, 5:22 PM HST	Special Marine Warning	HFO		113 min
Jan 9, 5:29 PM HST	Special Weather Statement	HFO	Kalawao	61 min
Jan 9, 5:47 PM HST	Special Weather Statement	HFO	Kalawao	58 min
Jan 9, 6:51 PM HST	Areal Flood Advisory	HFO	Kalawao	3 hr
Jan 9, 8:06 PM HST	Special Marine Warning	HFO		114 min
Jan 9, 8:17 PM HST	Areal Flood Advisory	HFO	Hawaii	82 min
Jan 9, 11:05 PM HST	Special Marine Warning	HFO		115 min
Jan 10, 3:26 AM HST	High Surf Warning	HFO	Honolulu, Kauai, Kalawao	24 hr
Jan 11, 3:38 AM HST	High Surf Advisory	HFO	Honolulu, Kauai, Kalawao	36 hr
Jan 13, 6:53 AM HST	Areal Flood Advisory	HFO	Kalawao	101 min
Jan 13, 9:23 AM HST	Small Craft Advisory	HFO		18 days
Jan 13, 3:07 PM HST	High Surf Warning	HFO	Honolulu, Kauai, Kalawao	36 hr
Jan 14, 3:44 AM HST	High Surf Advisory	HFO	Honolulu, Kauai, Kalawao	48 hr
Jan 15, 10:00 AM HST	High Surf Warning	HFO	Honolulu, Kauai, Kalawao	4 days
Jan 15, 10:06 AM HST	Small Craft Advisory	HFO		54 hr
Jan 16, 5:23 AM HST	High Surf Advisory	HFO	Hawaii, Honolulu, Kauai, Kalawao	4 days
Jan 16, 3:48 PM HST	Gale Watch	HFO		24 hr
Jan 17, 3:04 AM HST	Flash Flood Watch	HFO	Hawaii, Honolulu, Kauai, Kalawao	3 days
Jan 17, 3:37 PM HST	Wind Advisory	HFO	Honolulu, Kauai, Kalawao	48 hr
Jan 17, 3:45 PM HST	Gale Warning	HFO		36 hr
Jan 17, 3:45 PM HST	Small Craft Advisory	HFO		24 hr
Jan 17, 4:37 PM HST	Areal Flood Advisory	HFO	Kauai	3 hr
Jan 17, 7:07 PM HST	Areal Flood Advisory	HFO	Hawaii	3 hr
Jan 17, 7:17 PM HST	Areal Flood Advisory	HFO	Kauai	2 hr
Jan 18, 12:06 AM HST	Areal Flood Advisory	HFO	Kalawao	3 hr
Jan 18, 12:51 AM HST	Flash Flood Warning	HFO	Kalawao	6 hr
Jan 18, 3:03 AM HST	Areal Flood Advisory	HFO	Kalawao	3 hr
Jan 18, 3:49 AM HST	Winter Weather Advisory	HFO	Hawaii	36 hr
Jan 18, 5:16 AM HST	Areal Flood Advisory	HFO	Kalawao	3 hr
Jan 18, 8:53 AM HST	Areal Flood Advisory	HFO	Hawaii	3 hr
Jan 18, 10:17 AM HST	Areal Flood Advisory	HFO	Honolulu	3 hr
Jan 18, 10:50 AM HST	Areal Flood Advisory	HFO	Kalawao	6 hr
Jan 18, 11:50 AM HST	Areal Flood Advisory	HFO	Kalawao	3 hr
Jan 18, 2:25 PM HST	Flash Flood Warning	HFO	Kalawao	9 hr
Jan 18, 2:59 PM HST	Flash Flood Warning	HFO	Kalawao	3 hr
Jan 18, 3:41 PM HST	Areal Flood Advisory	HFO	Hawaii	3 hr
Jan 18, 5:54 PM HST	Areal Flood Advisory	HFO	Kalawao	5 hr
Jan 19, 5:38 AM HST	Areal Flood Advisory	HFO	Honolulu	3 hr
Jan 19, 10:26 AM HST	Special Marine Warning	HFO		2 hr
Jan 19, 10:55 AM HST	Areal Flood Advisory	HFO	Kauai	2 hr
Jan 19, 12:01 PM HST	Special Marine Warning	HFO		78 min
Jan 19, 1:18 PM HST	Flash Flood Warning	HFO	Kauai	9 hr
Jan 19, 3:20 PM HST	Small Craft Advisory	HFO		9 days
Jan 20, 5:23 PM HST	Areal Flood Advisory	HFO	Hawaii	92 min
Jan 22, 3:33 PM HST	Wind Advisory	HFO	Hawaii, Honolulu, Kauai, Kalawao	36 hr
Jan 22, 4:19 PM HST	High Surf Advisory	HFO	Hawaii, Honolulu, Kauai, Kalawao	7 days
Jan 23, 3:53 AM HST	Gale Watch	HFO		24 hr
Jan 24, 3:09 AM HST	Winter Storm Watch	HFO	Hawaii	12 hr
Jan 24, 8:46 AM HST	Flash Flood Watch	HFO	Hawaii, Honolulu, Kauai, Kalawao	55 hr
Jan 24, 3:23 PM HST	Winter Weather Advisory	HFO	Hawaii	12 hr
Jan 25, 2:09 AM HST	Areal Flood Advisory	HFO	Hawaii	3 hr
Jan 25, 3:06 AM HST	Winter Storm Warning	HFO	Hawaii	36 hr
Jan 25, 4:24 AM HST	Areal Flood Advisory	HFO	Hawaii	3 hr
Jan 25, 7:26 AM HST	Areal Flood Advisory	HFO	Hawaii	6 hr
Jan 25, 10:47 AM HST	Flash Flood Warning	HFO	Hawaii	6 hr
Jan 25, 1:48 PM HST	Areal Flood Advisory	HFO	Honolulu	3 hr
Jan 25, 3:45 PM HST	Flash Flood Warning	HFO	Honolulu	3 hr
Jan 25, 6:40 PM HST	Areal Flood Advisory	HFO	Honolulu	2 hr
Jan 26, 12:39 AM HST	Areal Flood Advisory	HFO	Hawaii	3 hr
Jan 26, 3:30 AM HST	Flash Flood Warning	HFO	Hawaii	2 hr
Jan 26, 5:33 AM HST	Areal Flood Advisory	HFO	Hawaii	3 hr
Jan 28, 3:13 AM HST	Wind Advisory	HFO	Hawaii, Kalawao	12 hr
Jan 28, 3:30 AM HST	Gale Warning	HFO		12 hr
Jan 28, 3:30 AM HST	Small Craft Advisory	HFO		6 min

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	7
Flash Flood Watch	2
Areal Flood Advisory	25
Winter
Winter Storm Warning	1
Winter Storm Watch	1
Winter Weather Advisory	2
Wind and dust
Wind Advisory	3
Coast and beach
High Surf Warning	3
High Surf Advisory	7
Marine
Gale Warning	3
Special Marine Warning	5
Gale Watch	2
Small Craft Advisory	8

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.