Alert archive / New Jersey / Union County

Weather alerts in Union County, New Jersey, 2022

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

Union County and its neighbors

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

Alerts: 150
Warnings: 18
Watches: 16
Advisories: 57
Busiest month: May22 alerts
Busiest day: July 18, 20226 alerts

Over time

By month

Warning verification

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

Union County, 2022

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	6	4	33%	6	50%	20 min
Flash flood warnings	5	3	40%	5	40%	52 min

Each office's whole area, 2022

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS New York, NY: tornado warnings	2	0	100%	0
NWS New York, NY: severe thunderstorm warnings	58	37	36%	110	67%	20 min
NWS New York, NY: flash flood warnings	29	20	31%	61	77%	46 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, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Lasted
Jan 1, 4:08 AM EST	Coastal Flood Advisory	OKX	33 hr
Jan 2, 4:19 PM EST	Coastal Flood Advisory	OKX	22 hr
Jan 3, 4:04 PM EST	Coastal Flood Advisory	OKX	20 hr
Jan 4, 3:46 PM EST	Winter Weather Advisory	OKX	20 hr
Jan 6, 3:55 AM EST	Winter Weather Advisory	OKX	30 hr
Jan 7, 2:02 AM EST	Mesoscale Discussion	SPC	5 hr
Jan 8, 4:45 AM EST	Winter Weather Advisory	OKX	35 hr
Jan 14, 4:14 PM EST	Coastal Flood Watch	OKX	36 hr
Jan 15, 4:02 PM EST	Winter Weather Advisory	OKX	44 hr
Jan 16, 4:14 AM EST	Coastal Flood Advisory	OKX	30 hr
Jan 19, 3:42 PM EST	Winter Weather Advisory	OKX	21 hr
Jan 27, 3:30 AM EST	Winter Storm Watch	OKX	24 hr
Jan 28, 3:21 AM EST	Winter Storm Warning	OKX	40 hr
Jan 29, 4:25 AM EST	Mesoscale Discussion	SPC	6 hr
Feb 2, 6:38 PM EST	Dense Fog Advisory	OKX	17 hr
Feb 3, 3:56 AM EST	Winter Weather Advisory	OKX	47 hr
Feb 4, 10:20 AM EST	Mesoscale Discussion	SPC	6 hr
Feb 4, 4:40 PM EST	Special Weather Statement	OKX	2 hr
Feb 7, 3:40 AM EST	Winter Weather Advisory	OKX	11 hr
Feb 13, 3:19 AM EST	Winter Weather Advisory	OKX	21 hr
Feb 17, 3:59 AM EST	Wind Advisory	OKX	30 hr
Feb 18, 5:40 AM EST	Special Weather Statement	OKX	95 min
Feb 18, 6:18 AM EST	Special Weather Statement	OKX	87 min
Feb 18, 3:41 PM EST	Wind Advisory	OKX	32 hr
Feb 19, 12:58 PM EST	Mesoscale Discussion	SPC	4 hr
Feb 19, 2:40 PM EST	Snow Squall Warning	OKX	35 min
Feb 19, 3:07 PM EST	Snow Squall Warning	OKX	38 min
Feb 24, 4:06 AM EST	Winter Weather Advisory	OKX	32 hr
Feb 24, 9:13 PM EST	Mesoscale Discussion	SPC	5 hr
Feb 25, 3:52 AM EST	Mesoscale Discussion	SPC	4 hr
Mar 7, 3:34 PM EST	Wind Advisory	OKX	10 hr
Mar 7, 5:53 PM EST	Mesoscale Discussion	SPC	97 min
Mar 7, 6:19 PM EST	Severe Thunderstorm Watch	SPC	4 hr
Mar 7, 7:42 PM EST	Mesoscale Discussion	SPC	93 min
Mar 7, 8:52 PM EST	Severe Thunderstorm Warning Considerable damage threat	OKX	53 min
Mar 11, 3:04 PM EST	Wind Advisory	OKX	36 hr
Mar 11, 3:07 PM EST	Winter Weather Advisory	OKX	28 hr
Mar 12, 8:53 AM EST	Mesoscale Discussion	SPC	4 hr
Mar 19, 8:59 PM EDT	Special Weather Statement	OKX	46 min
Mar 31, 4:20 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Mar 31, 7:13 PM EDT	Mesoscale Discussion	SPC	92 min
Mar 31, 9:43 PM EDT	Mesoscale Discussion	SPC	92 min
Mar 31, 10:34 PM EDT	Special Weather Statement	OKX	41 min
Apr 7, 3:06 PM EDT	Flood Watch	OKX	11 hr
Apr 7, 8:27 PM EDT	Areal Flood Advisory	OKX	3 hr
Apr 7, 9:12 PM EDT	Areal Flood Warning	OKX	14 hr
Apr 14, 2:19 PM EDT	Mesoscale Discussion	SPC	116 min
Apr 14, 5:15 PM EDT	Special Weather Statement	OKX	45 min
Apr 16, 3:37 PM EDT	Freeze Watch	OKX	21 hr
Apr 17, 12:29 PM EDT	Frost Advisory	OKX	20 hr
Apr 18, 4:33 AM EDT	Coastal Flood Advisory	OKX	23 hr
Apr 18, 2:27 PM EDT	Flood Watch	OKX	14 hr
Apr 19, 12:50 AM EDT	Areal Flood Advisory	OKX	3 hr
Apr 27, 3:16 PM EDT	Fire Weather Watch	OKX	12 hr
Apr 27, 3:33 PM EDT	Fire Weather Watch	OKX	36 hr
Apr 28, 3:30 AM EDT	Red Flag Warning	OKX	19 hr
Apr 29, 3:39 AM EDT	Red Flag Warning	OKX	18 hr
May 7, 12:43 PM EDT	Areal Flood Advisory	OKX	2 hr
May 13, 6:44 PM EDT	Dense Fog Advisory	OKX	15 hr
May 14, 8:21 PM EDT	Dense Fog Advisory	OKX	14 hr
May 16, 8:19 AM EDT	Coastal Flood Statement	OKX	18 hr
May 16, 12:01 PM EDT	Mesoscale Discussion	SPC	119 min
May 16, 1:33 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
May 20, 4:06 AM EDT	Heat Advisory	OKX	59 hr
May 20, 1:49 PM EDT	Mesoscale Discussion	SPC	86 min
May 20, 3:36 PM EDT	Mesoscale Discussion	SPC	84 min
May 21, 12:55 AM EDT	Dense Fog Advisory	OKX	8 hr
May 22, 4:15 PM EDT	Mesoscale Discussion	SPC	90 min
May 22, 7:40 PM EDT	Severe Thunderstorm Warning	OKX	65 min
May 27, 11:55 AM EDT	Mesoscale Discussion	SPC	95 min
May 27, 3:16 PM EDT	Mesoscale Discussion	SPC	89 min
May 27, 4:40 PM EDT	Special Weather Statement	OKX	50 min
May 27, 4:52 PM EDT	Areal Flood Advisory	OKX	113 min
May 27, 4:59 PM EDT	Severe Thunderstorm Warning	OKX	35 min
May 28, 12:14 AM EDT	Areal Flood Advisory	OKX	3 hr
May 28, 12:38 AM EDT	Special Weather Statement	OKX	52 min
May 28, 12:04 PM EDT	Special Weather Statement	OKX	41 min
May 28, 12:12 PM EDT	Areal Flood Advisory	OKX	93 min
May 28, 12:29 PM EDT	Special Weather Statement	OKX	46 min
May 31, 10:07 PM EDT	Special Weather Statement	OKX	38 min
May 31, 10:11 PM EDT	Special Weather Statement	OKX	49 min
May 31, 10:57 PM EDT	Special Weather Statement	OKX	33 min
Jun 1, 8:49 PM EDT	Special Weather Statement	OKX	41 min
Jun 1, 9:00 PM EDT	Flash Flood Warning	OKX	3 hr
Jun 1, 9:28 PM EDT	Special Weather Statement	OKX	62 min
Jul 1, 4:28 PM EDT	Special Weather Statement	OKX	62 min
Jul 12, 4:02 PM EDT	Mesoscale Discussion	SPC	88 min
Jul 12, 5:05 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
Jul 16, 11:50 AM EDT	Areal Flood Advisory	OKX	117 min
Jul 16, 2:02 PM EDT	Areal Flood Advisory	OKX	29 min
Jul 18, 6:17 AM EDT	Special Weather Statement	OKX	43 min
Jul 18, 12:18 PM EDT	Mesoscale Discussion	SPC	117 min
Jul 18, 1:47 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 18, 4:32 PM EDT	Mesoscale Discussion	SPC	88 min
Jul 18, 6:38 PM EDT	Mesoscale Discussion	SPC	97 min
Jul 18, 7:36 PM EDT	Areal Flood Advisory	OKX	84 min
Jul 19, 3:29 AM EDT	Heat Advisory	OKX	6 days
Jul 21, 11:37 AM EDT	Severe Thunderstorm Watch	SPC	9 hr
Jul 24, 3:22 PM EDT	Heat Advisory	OKX	24 hr
Jul 25, 11:25 AM EDT	Mesoscale Discussion	SPC	95 min
Jul 25, 12:25 PM EDT	Severe Thunderstorm Warning	OKX	50 min
Jul 25, 12:59 PM EDT	Flash Flood Warning	OKX	73 min
Jul 25, 1:04 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 25, 3:56 PM EDT	Areal Flood Advisory	OKX	73 min
Jul 28, 3:32 PM EDT	Mesoscale Discussion	SPC	118 min
Aug 2, 3:32 PM EDT	Heat Advisory	OKX	3 days
Aug 4, 8:18 PM EDT	Special Weather Statement	OKX	42 min
Aug 4, 8:36 PM EDT	Areal Flood Advisory	OKX	20 min
Aug 5, 8:33 PM EDT	Areal Flood Advisory	OKX	23 min
Aug 6, 12:57 PM EDT	Heat Advisory	OKX	3 days
Aug 7, 2:12 PM EDT	Special Weather Statement	OKX	48 min
Aug 7, 2:31 PM EDT	Severe Thunderstorm Warning	OKX	29 min
Aug 9, 12:43 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 9, 6:29 PM EDT	Severe Thunderstorm Warning	OKX	31 min
Aug 10, 3:41 PM EDT	Coastal Flood Statement	OKX	6 hr
Aug 10, 3:41 PM EDT	Coastal Flood Advisory	OKX	33 hr
Aug 11, 9:50 PM EDT	Coastal Flood Statement	OKX	25 hr
Aug 12, 9:20 PM EDT	Coastal Flood Statement	OKX	29 hr
Aug 17, 1:43 AM EDT	Areal Flood Advisory	OKX	64 min
Aug 17, 2:13 AM EDT	Areal Flood Advisory	OKX	47 min
Aug 22, 3:35 PM EDT	Areal Flood Advisory	OKX	85 min
Aug 22, 3:49 PM EDT	Special Weather Statement	OKX	41 min
Aug 22, 4:10 PM EDT	Mesoscale Discussion	SPC	3 hr
Aug 22, 4:13 PM EDT	Flash Flood Warning	OKX	80 min
Aug 30, 5:50 PM EDT	Mesoscale Discussion	SPC	115 min
Sep 5, 3:23 AM EDT	Flood Watch	OKX	34 hr
Sep 7, 4:22 AM EDT	Coastal Flood Statement	OKX	19 hr
Sep 8, 3:35 AM EDT	Coastal Flood Statement	OKX	20 hr
Sep 9, 3:37 AM EDT	Coastal Flood Statement	OKX	21 hr
Sep 12, 10:49 PM EDT	Areal Flood Advisory	OKX	3 hr
Sep 13, 3:43 AM EDT	Flash Flood Warning	OKX	74 min
Sep 13, 4:01 AM EDT	Areal Flood Advisory	OKX	2 hr
Sep 22, 7:23 AM EDT	Special Weather Statement	OKX	37 min
Sep 25, 8:40 PM EDT	Special Weather Statement	OKX	65 min
Sep 25, 9:26 PM EDT	Areal Flood Advisory	OKX	2 hr
Sep 25, 9:47 PM EDT	Special Weather Statement	OKX	43 min
Sep 25, 9:56 PM EDT	Flash Flood Warning	OKX	114 min
Oct 1, 5:10 PM EDT	Coastal Flood Advisory	OKX	35 hr
Oct 2, 5:47 PM EDT	Coastal Flood Advisory	OKX	23 hr
Oct 3, 4:23 AM EDT	Coastal Flood Advisory	OKX	40 hr
Oct 18, 3:52 AM EDT	Frost Advisory	OKX	29 hr
Oct 25, 5:46 AM EDT	Dense Fog Advisory	OKX	4 hr
Oct 29, 3:32 PM EDT	Frost Advisory	OKX	17 hr
Dec 15, 6:52 PM EST	Coastal Flood Statement	OKX	20 hr
Dec 20, 3:41 PM EST	Coastal Flood Watch	OKX	38 hr
Dec 21, 3:33 PM EST	Wind Advisory	OKX	54 hr
Dec 21, 3:57 PM EST	Coastal Flood Warning	OKX	45 hr
Dec 23, 1:25 PM EST	Special Weather Statement	OKX	35 min
Dec 23, 7:13 PM EST	Wind Chill Advisory	OKX	15 hr
Dec 31, 8:16 AM EST	Dense Fog Advisory	OKX	15 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	6
Severe Thunderstorm Watch	7
Mesoscale Discussion	27
Special Weather Statement	24
Flooding
Areal Flood Warning	1
Flash Flood Warning	5
Flood Watch	3
Areal Flood Advisory	18
Winter
Snow Squall Warning	2
Winter Storm Warning	1
Winter Storm Watch	1
Winter Weather Advisory	10
Heat
Heat Advisory	5
Cold
Freeze Watch	1
Frost Advisory	3
Wind Chill Advisory	1
Wind and dust
Wind Advisory	5
Fire
Red Flag Warning	2
Fire Weather Watch	2
Fog and smoke
Dense Fog Advisory	6
Coast and beach
Coastal Flood Warning	1
Coastal Flood Watch	2
Coastal Flood Advisory	9
Coastal Flood Statement	8

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.