Weather alerts in Maui County, Hawaii, 2010

104 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Maui County and its neighbors

Each county as a circle sized by its count in 2010. Tap one for its archive.

Alerts: 104
Warnings: 18
Watches: 5
Advisories: 81
Busiest month: January24 alerts
Busiest day: December 10, 20107 alerts

Over time

By month

Warning verification

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

Maui County, 2010

	Warnings	With a report	False alarm ratio
Tornado warnings	0
Severe thunderstorm warnings	0
Flash flood warnings	6	0	100%

Each office's whole area, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Honolulu, HI: severe thunderstorm warnings	4	0	100%	1	0%
NWS Honolulu, HI: flash flood warnings	23	5	78%	7	86%	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
Jan 2, 3:25 PM HST	High Surf Advisory	HFO	12 hr
Jan 3, 3:38 PM HST	High Surf Advisory	HFO	24 hr
Jan 4, 3:35 PM HST	High Surf Warning	HFO	4 days
Jan 4, 3:35 PM HST	Wind Advisory	HFO	20 hr
Jan 6, 11:05 PM HST	Wind Advisory	HFO	5 hr
Jan 8, 3:54 AM HST	High Surf Advisory	HFO	48 hr
Jan 8, 2:22 PM HST	High Surf Warning	HFO	13 hr
Jan 10, 3:37 AM HST	High Surf Warning	HFO	60 hr
Jan 12, 3:30 AM HST	High Surf Advisory	HFO	12 hr
Jan 12, 3:24 PM HST	High Surf Advisory	HFO	48 hr
Jan 12, 3:24 PM HST	Wind Advisory	HFO	24 hr
Jan 13, 8:53 AM HST	High Surf Warning	HFO	31 hr
Jan 13, 3:36 PM HST	High Wind Warning	HFO	12 hr
Jan 14, 3:36 PM HST	High Surf Advisory	HFO	12 hr
Jan 16, 3:58 AM HST	High Surf Warning	HFO	59 hr
Jan 17, 8:39 AM HST	High Surf Advisory	HFO	55 hr
Jan 23, 3:31 PM HST	High Surf Advisory	HFO	24 hr
Jan 26, 3:35 PM HST	High Surf Warning	HFO	48 hr
Jan 28, 9:17 AM HST	High Surf Advisory	HFO	23 hr
Jan 29, 9:46 PM HST	Areal Flood Advisory	HFO	3 hr
Jan 29, 11:22 PM HST	Areal Flood Advisory	HFO	2 hr
Jan 30, 3:51 AM HST	Areal Flood Advisory	HFO	3 hr
Jan 30, 6:48 AM HST	Areal Flood Advisory	HFO	3 hr
Jan 30, 3:33 PM HST	High Surf Advisory	HFO	36 hr
Feb 2, 3:31 AM HST	High Surf Advisory	HFO	72 hr
Feb 2, 12:15 PM HST	Areal Flood Advisory	HFO	3 hr
Feb 2, 1:55 PM HST	Areal Flood Advisory	HFO	110 min
Feb 5, 9:43 AM HST	High Surf Advisory	HFO	42 hr
Feb 7, 3:26 PM HST	Wind Advisory	HFO	36 hr
Feb 9, 3:32 PM HST	High Surf Warning	HFO	60 hr
Feb 10, 3:09 PM HST	High Surf Advisory	HFO	5 days
Feb 16, 3:33 PM HST	High Surf Advisory	HFO	65 hr
Feb 17, 4:49 AM HST	Wind Advisory	HFO	16 hr
Feb 20, 3:15 PM HST	High Surf Advisory	HFO	48 hr
Feb 22, 3:35 PM HST	High Surf Warning	HFO	24 hr
Feb 23, 3:27 PM HST	High Surf Advisory	HFO	12 hr
Feb 24, 3:55 PM HST	High Surf Advisory	HFO	59 hr
Feb 28, 3:54 AM HST	High Surf Warning	HFO	48 hr
Feb 28, 9:49 AM HST	Wind Advisory	HFO	54 hr
Feb 28, 3:46 PM HST	High Surf Advisory	HFO	60 hr
Mar 3, 11:37 AM HST	High Surf Advisory	HFO	3 days
Mar 8, 7:53 AM HST	Wind Advisory	HFO	68 hr
Mar 8, 3:45 PM HST	High Surf Advisory	HFO	71 hr
Mar 14, 9:21 AM HST	High Surf Advisory	HFO	71 hr
Mar 17, 6:15 PM HST	Areal Flood Advisory	HFO	2 hr
Mar 18, 3:34 PM HST	High Surf Advisory	HFO	26 hr
Mar 19, 3:33 PM HST	High Surf Advisory	HFO	68 hr
Mar 22, 5:40 AM HST	Areal Flood Advisory	HFO	3 hr
Mar 22, 3:47 PM HST	High Surf Advisory	HFO	48 hr
Mar 29, 3:27 AM HST	Wind Advisory	HFO	4 days
Mar 29, 3:29 PM HST	High Surf Advisory	HFO	7 days
Apr 7, 8:10 AM HST	Flash Flood Watch	HFO	31 hr
Apr 12, 3:39 PM HST	High Surf Advisory	HFO	72 hr
Apr 16, 3:33 PM HST	High Surf Advisory	HFO	36 hr
Apr 21, 3:16 PM HST	High Surf Advisory	HFO	36 hr
Apr 25, 3:33 PM HST	High Surf Advisory	HFO	48 hr
Apr 27, 3:32 AM HST	Wind Advisory	HFO	54 hr
May 19, 6:30 AM HST	Wind Advisory	HFO	45 hr
May 22, 3:29 AM HST	Wind Advisory	HFO	36 hr
May 25, 3:32 AM HST	Wind Advisory	HFO	8 hr
May 31, 6:48 AM HST	Wind Advisory	HFO	53 hr
Jun 8, 3:30 AM HST	Wind Advisory	HFO	60 hr
Jun 10, 3:12 AM HST	High Wind Warning	HFO	7 hr
Jun 22, 9:38 AM HST	Wind Advisory	HFO	24 hr
Jul 23, 11:42 PM HST	Wind Advisory	HFO	28 hr
Jul 29, 9:48 AM HST	Wind Advisory	HFO	54 hr
Aug 2, 3:33 PM HST	High Surf Advisory	HFO	65 hr
Aug 9, 9:46 PM HST	Wind Advisory	HFO	4 days
Sep 25, 9:07 AM HST	High Surf Advisory	HFO	42 hr
Sep 27, 3:30 PM HST	High Surf Advisory	HFO	36 hr
Oct 9, 9:03 PM HST	Wind Advisory	HFO	18 hr
Oct 19, 2:18 PM HST	Areal Flood Advisory	HFO	3 hr
Oct 19, 4:42 PM HST	Flash Flood Warning	HFO	3 hr
Oct 20, 3:26 AM HST	High Surf Advisory	HFO	36 hr
Oct 25, 4:42 PM HST	Wind Advisory	HFO	71 hr
Oct 25, 8:33 PM HST	High Surf Advisory	HFO	3 days
Oct 31, 3:44 PM HST	High Surf Warning	HFO	4 days
Oct 31, 3:44 PM HST	High Surf Advisory	HFO	5 days
Nov 17, 10:11 AM HST	Flash Flood Watch	HFO	53 hr
Nov 24, 12:16 PM HST	High Wind Watch	HFO	16 hr
Nov 25, 3:48 AM HST	Wind Advisory	HFO	5 hr
Dec 1, 3:02 PM HST	High Surf Advisory	HFO	3 days
Dec 1, 3:30 PM HST	Wind Advisory	HFO	48 hr
Dec 7, 2:58 PM HST	High Surf Advisory	HFO	60 hr
Dec 8, 3:46 AM HST	Flash Flood Watch	HFO	72 hr
Dec 9, 7:31 PM HST	Wind Advisory	HFO	20 hr
Dec 10, 1:22 AM HST	Flash Flood Warning	HFO	3 hr
Dec 10, 2:53 AM HST	Flash Flood Warning	HFO	3 hr
Dec 10, 4:07 AM HST	Flash Flood Warning	HFO	3 hr
Dec 10, 4:17 AM HST	Areal Flood Advisory	HFO	6 hr
Dec 10, 5:41 AM HST	Areal Flood Advisory	HFO	3 hr
Dec 10, 6:56 AM HST	Areal Flood Advisory	HFO	8 hr
Dec 18, 3:38 PM HST	High Surf Advisory	HFO	60 hr
Dec 18, 7:53 PM HST	Flash Flood Watch	HFO	4 days
Dec 19, 8:42 AM HST	Flash Flood Warning	HFO	3 hr
Dec 19, 6:55 PM HST	Areal Flood Advisory	HFO	2 hr
Dec 21, 8:01 AM HST	Areal Flood Advisory	HFO	6 hr
Dec 21, 3:27 PM HST	Areal Flood Advisory	HFO	103 min
Dec 22, 1:46 PM HST	Areal Flood Advisory	HFO	3 hr
Dec 23, 4:42 PM HST	Areal Flood Advisory	HFO	2 hr
Dec 24, 3:34 PM HST	High Surf Advisory	HFO	47 hr
Dec 26, 1:21 AM HST	Areal Flood Advisory	HFO	3 hr
Dec 26, 1:41 AM HST	Flash Flood Warning	HFO	4 hr
Dec 26, 12:28 PM HST	Areal Flood Advisory	HFO	36 min

By product

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

Product	Alerts
Flooding
Flash Flood Warning	6
Flash Flood Watch	4
Areal Flood Advisory	19
Wind and dust
High Wind Warning	2
High Wind Watch	1
Wind Advisory	23
Coast and beach
High Surf Warning	10
High Surf Advisory	39

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2009 2011

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.