Alert archive / Hawaii / 2020

Weather alerts in Hawaii, December 2020

31 weather alerts in December 2020, 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 2020. Tap one for its archive.

Alerts: 31
Warnings: 6
Watches: 1
Advisories: 24
Busiest day: December 17, 20205 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, 3:28 PM HST	High Surf Warning	HFO	Honolulu, Kauai, Kalawao	69 hr
Dec 1, 3:22 AM HST	Small Craft Advisory	HFO		57 hr
Dec 1, 3:31 PM HST	High Surf Advisory	HFO	Hawaii	45 hr
Dec 3, 12:48 PM HST	High Surf Advisory	HFO	Honolulu, Kauai, Kalawao	15 hr
Dec 3, 3:26 PM HST	Small Craft Advisory	HFO		48 hr
Dec 5, 3:29 PM HST	Small Craft Advisory	HFO		4 days
Dec 5, 3:30 PM HST	High Surf Warning	HFO	Honolulu, Kauai, Kalawao	40 hr
Dec 7, 7:31 AM HST	High Surf Advisory	HFO	Honolulu, Kauai, Kalawao	44 hr
Dec 11, 3:05 AM HST	Small Craft Advisory	HFO		48 hr
Dec 13, 3:30 PM HST	Small Craft Advisory	HFO		60 hr
Dec 16, 3:30 PM HST	High Surf Advisory	HFO	Honolulu, Kauai, Kalawao	44 hr
Dec 16, 3:40 PM HST	Small Craft Advisory	HFO		5 days
Dec 16, 3:53 PM HST	Areal Flood Advisory	HFO	Hawaii	3 hr
Dec 17, 9:22 AM HST	Winter Weather Advisory	HFO	Hawaii	48 hr
Dec 17, 9:38 AM HST	Gale Watch	HFO		6 hr
Dec 17, 3:06 PM HST	Wind Advisory	HFO	Hawaii, Kalawao	37 hr
Dec 17, 3:15 PM HST	Gale Warning	HFO		36 hr
Dec 17, 3:15 PM HST	Small Craft Advisory	HFO		4 days
Dec 18, 3:43 AM HST	Areal Flood Advisory	HFO	Hawaii	6 hr
Dec 18, 11:38 AM HST	High Surf Advisory	HFO	Honolulu, Kalawao	28 hr
Dec 18, 6:43 PM HST	Areal Flood Advisory	HFO	Hawaii	12 hr
Dec 22, 4:02 PM HST	High Surf Advisory	HFO	Honolulu, Kauai, Kalawao	59 hr
Dec 23, 3:31 AM HST	Small Craft Advisory	HFO		5 days
Dec 26, 1:50 PM HST	Gale Warning	HFO		12 hr
Dec 26, 1:50 PM HST	Wind Advisory	HFO	Hawaii, Honolulu, Kauai, Kalawao	12 hr
Dec 26, 3:23 PM HST	High Surf Advisory	HFO	Honolulu, Kalawao	36 hr
Dec 28, 3:33 AM HST	High Surf Warning	HFO	Honolulu, Kauai	36 hr
Dec 28, 3:33 AM HST	High Surf Advisory	HFO	Honolulu, Kauai, Kalawao	53 hr
Dec 28, 3:34 AM HST	Small Craft Advisory	HFO		7 days
Dec 30, 6:26 AM HST	High Surf Warning	HFO	Honolulu, Kauai, Kalawao	69 hr
Dec 31, 11:32 AM HST	Wind Advisory	HFO	Hawaii, Kalawao	40 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

Product	Alerts
Flooding
Areal Flood Advisory	3
Winter
Winter Weather Advisory	1
Wind and dust
Wind Advisory	3
Coast and beach
High Surf Warning	4
High Surf Advisory	8
Marine
Gale Warning	2
Gale Watch	1
Small Craft Advisory	9

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 2019 2021

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.