Alert archive / New Jersey / Cape May County

Weather alerts in Cape May County, New Jersey, 2023

156 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Cape May County and its neighbors

Each county as a circle sized by its count in 2023. Tap one for its archive.

Alerts: 156
Warnings: 25
Watches: 23
Advisories: 59
Busiest month: July37 alerts
Busiest day: July 29, 20239 alerts

Over time

By month

Warning verification

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

Cape May County, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	14	10	29%	3	100%	35 min
Flash flood warnings	1	0	100%	0

Each office's whole area, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Philadelphia/Mount Holly: tornado warnings	35	7	80%	24	46%	6 min
NWS Philadelphia/Mount Holly: severe thunderstorm warnings	364	198	46%	662	84%	22 min
NWS Philadelphia/Mount Holly: flash flood warnings	91	49	46%	139	91%	106 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 21, 3:59 PM EST	Coastal Flood Advisory	PHI	21 hr
Jan 22, 3:12 PM EST	Coastal Flood Advisory	PHI	22 hr
Jan 24, 3:12 PM EST	Wind Advisory	PHI	34 hr
Feb 6, 3:17 AM EST	Dense Fog Advisory	PHI	5 hr
Feb 17, 1:19 PM EST	Special Weather Statement	PHI	56 min
Feb 21, 2:22 PM EST	Mesoscale Discussion	SPC	53 min
Feb 21, 3:02 PM EST	Special Weather Statement	PHI	28 min
Feb 28, 1:21 AM EST	Coastal Flood Advisory	PHI	4 hr
Mar 3, 3:49 AM EST	Coastal Flood Advisory	PHI	38 hr
Mar 3, 3:49 AM EST	Wind Advisory	PHI	35 hr
Mar 11, 5:47 AM EST	Coastal Flood Advisory	PHI	19 hr
Mar 13, 2:56 PM EDT	Wind Advisory	PHI	32 hr
Mar 18, 7:34 PM EDT	Red Flag Warning	PHI	24 hr
Mar 31, 3:05 PM EDT	Wind Advisory	PHI	35 hr
Apr 1, 4:37 PM EDT	Mesoscale Discussion	SPC	113 min
Apr 1, 5:30 PM EDT	Tornado Watch	SPC	5 hr
Apr 1, 6:55 PM EDT	Mesoscale Discussion	SPC	95 min
Apr 1, 7:24 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	51 min
Apr 1, 7:52 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	38 min
Apr 2, 11:40 AM EDT	Frost Advisory	PHI	21 hr
Apr 6, 2:00 PM EDT	Mesoscale Discussion	SPC	90 min
Apr 6, 2:58 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 6, 6:08 PM EDT	Mesoscale Discussion	SPC	2 hr
Apr 6, 8:27 PM EDT	Mesoscale Discussion	SPC	93 min
Apr 8, 3:31 AM EDT	Frost Advisory	PHI	29 hr
Apr 9, 9:10 AM EDT	Freeze Warning	PHI	24 hr
Apr 16, 3:47 AM EDT	Dense Fog Advisory	PHI	7 hr
Apr 18, 3:19 AM EDT	Red Flag Warning	PHI	16 hr
Apr 19, 3:43 AM EDT	Red Flag Warning	PHI	16 hr
Apr 22, 2:47 PM EDT	Mesoscale Discussion	SPC	118 min
Apr 22, 6:11 PM EDT	Mesoscale Discussion	SPC	64 min
Apr 29, 3:46 PM EDT	Flood Watch	PHI	30 hr
Apr 30, 2:05 PM EDT	Areal Flood Advisory	PHI	3 hr
May 4, 2:21 PM EDT	Coastal Flood Advisory	PHI	10 hr
May 24, 8:24 PM EDT	Rip Current Statement	PHI	24 hr
May 29, 4:59 AM EDT	Rip Current Statement	PHI	64 hr
Jun 2, 5:50 PM EDT	Coastal Flood Watch	PHI	11 hr
Jun 2, 5:50 PM EDT	Coastal Flood Advisory	PHI	35 hr
Jun 3, 4:57 AM EDT	Rip Current Statement	PHI	17 hr
Jun 3, 2:52 PM EDT	Coastal Flood Warning	PHI	11 hr
Jun 4, 5:00 AM EDT	Coastal Flood Advisory	PHI	29 hr
Jun 5, 5:58 AM EDT	Coastal Flood Advisory	PHI	24 hr
Jun 5, 3:23 PM EDT	Fire Weather Watch	PHI	12 hr
Jun 6, 3:49 AM EDT	Red Flag Warning	PHI	16 hr
Jun 6, 5:46 AM EDT	Coastal Flood Advisory	PHI	21 hr
Jun 6, 5:20 PM EDT	Special Weather Statement	PHI	25 min
Jun 8, 10:29 AM EDT	Special Weather Statement	PHI	31 min
Jun 8, 10:57 AM EDT	Special Weather Statement	PHI	18 min
Jun 8, 12:09 PM EDT	Special Weather Statement	PHI	51 min
Jun 12, 12:30 PM EDT	Mesoscale Discussion	SPC	60 min
Jun 16, 10:39 AM EDT	Special Weather Statement	PHI	36 min
Jun 16, 10:50 AM EDT	Mesoscale Discussion	SPC	55 min
Jun 16, 11:04 AM EDT	Severe Thunderstorm Warning	PHI	41 min
Jun 16, 11:06 AM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 16, 12:25 PM EDT	Severe Thunderstorm Warning	PHI	65 min
Jun 16, 12:34 PM EDT	Mesoscale Discussion	SPC	26 min
Jun 16, 1:15 PM EDT	Severe Thunderstorm Warning	PHI	60 min
Jun 20, 5:03 PM EDT	Rip Current Statement	PHI	51 hr
Jun 21, 5:04 AM EDT	Coastal Flood Advisory	PHI	25 hr
Jun 21, 5:04 AM EDT	High Surf Advisory	PHI	27 hr
Jun 26, 12:36 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 2, 4:31 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 3, 2:55 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 3, 4:49 PM EDT	Mesoscale Discussion	SPC	116 min
Jul 3, 8:27 PM EDT	Severe Thunderstorm Warning	PHI	48 min
Jul 3, 8:29 PM EDT	Mesoscale Discussion	SPC	91 min
Jul 3, 8:58 PM EDT	Severe Thunderstorm Warning	PHI	47 min
Jul 4, 8:41 PM EDT	Coastal Flood Advisory	PHI	7 hr
Jul 5, 3:21 AM EDT	Coastal Flood Advisory	PHI	24 hr
Jul 6, 4:11 AM EDT	Dense Fog Advisory	PHI	4 hr
Jul 6, 5:44 PM EDT	Coastal Flood Advisory	PHI	10 hr
Jul 8, 3:17 PM EDT	Flood Watch	PHI	31 hr
Jul 9, 1:19 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 9, 5:59 PM EDT	Special Weather Statement	PHI	46 min
Jul 15, 3:44 AM EDT	Flood Watch	PHI	38 hr
Jul 16, 2:42 PM EDT	Special Weather Statement	PHI	48 min
Jul 17, 12:52 AM EDT	Dense Fog Advisory	PHI	10 hr
Jul 18, 2:29 PM EDT	Special Weather Statement	PHI	46 min
Jul 19, 9:14 AM EDT	Special Weather Statement	PHI	31 min
Jul 21, 3:13 AM EDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 21, 4:26 AM EDT	Mesoscale Discussion	SPC	94 min
Jul 21, 6:16 AM EDT	Severe Thunderstorm Warning	PHI	44 min
Jul 21, 6:52 AM EDT	Severe Thunderstorm Warning	PHI	23 min
Jul 25, 12:13 PM EDT	Severe Thunderstorm Watch	SPC	10 hr
Jul 25, 3:52 PM EDT	Severe Thunderstorm Warning	PHI	53 min
Jul 26, 3:32 AM EDT	Heat Advisory	PHI	4 days
Jul 27, 11:40 AM EDT	Mesoscale Discussion	SPC	2 hr
Jul 28, 7:54 PM EDT	Mesoscale Discussion	SPC	96 min
Jul 28, 9:18 PM EDT	Special Weather Statement	PHI	42 min
Jul 28, 10:00 PM EDT	Special Weather Statement	PHI	45 min
Jul 28, 11:15 PM EDT	Special Weather Statement	PHI	30 min
Jul 29, 12:43 AM EDT	Severe Thunderstorm Warning	PHI	47 min
Jul 29, 1:56 PM EDT	Mesoscale Discussion	SPC	64 min
Jul 29, 2:48 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 29, 6:07 PM EDT	Severe Thunderstorm Warning	PHI	68 min
Jul 29, 6:20 PM EDT	Mesoscale Discussion	SPC	85 min
Jul 29, 6:33 PM EDT	Severe Thunderstorm Warning	PHI	42 min
Jul 31, 4:08 AM EDT	Coastal Flood Advisory	PHI	20 hr
Aug 1, 3:52 AM EDT	Coastal Flood Advisory	PHI	22 hr
Aug 2, 2:58 AM EDT	Coastal Flood Advisory	PHI	23 hr
Aug 7, 2:31 PM EDT	Mesoscale Discussion	SPC	59 min
Aug 7, 3:13 PM EDT	Tornado Watch	SPC	8 hr
Aug 7, 5:01 PM EDT	Mesoscale Discussion	SPC	89 min
Aug 7, 6:58 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	62 min
Aug 15, 1:28 PM EDT	Mesoscale Discussion	SPC	3 hr
Aug 15, 2:08 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 15, 9:05 PM EDT	Areal Flood Advisory	PHI	3 hr
Aug 17, 6:46 AM EDT	Dense Fog Advisory	PHI	3 hr
Aug 28, 10:26 AM EDT	Coastal Flood Advisory	PHI	13 hr
Aug 28, 6:08 PM EDT	Rip Current Statement	PHI	8 days
Aug 29, 5:02 AM EDT	Coastal Flood Advisory	PHI	23 hr
Aug 30, 3:50 AM EDT	Coastal Flood Advisory	PHI	21 hr
Aug 31, 4:39 AM EDT	Coastal Flood Advisory	PHI	25 hr
Sep 1, 3:34 PM EDT	Coastal Flood Advisory	PHI	11 hr
Sep 8, 1:58 PM EDT	Mesoscale Discussion	SPC	92 min
Sep 11, 9:35 PM EDT	Rip Current Statement	PHI	5 days
Sep 13, 12:43 AM EDT	Mesoscale Discussion	SPC	92 min
Sep 13, 2:55 AM EDT	Special Weather Statement	PHI	35 min
Sep 13, 3:33 AM EDT	Flash Flood Warning	PHI	3 hr
Sep 13, 3:36 AM EDT	Special Weather Statement	PHI	24 min
Sep 13, 4:01 AM EDT	Special Weather Statement	PHI	29 min
Sep 13, 4:25 AM EDT	Special Weather Statement	PHI	35 min
Sep 14, 3:16 AM EDT	High Surf Advisory	PHI	60 hr
Sep 20, 10:10 PM EDT	Rip Current Statement	PHI	11 days
Sep 21, 9:42 AM EDT	High Wind Watch	PHI	6 hr
Sep 21, 2:51 PM EDT	Coastal Flood Watch	PHI	13 hr
Sep 21, 3:57 PM EDT	High Wind Warning	PHI	49 hr
Sep 21, 3:57 PM EDT	Wind Advisory	PHI	49 hr
Sep 22, 4:01 AM EDT	Coastal Flood Warning	PHI	40 hr
Sep 22, 6:46 AM EDT	High Surf Advisory	PHI	56 hr
Sep 22, 3:52 PM EDT	Coastal Flood Advisory	PHI	58 hr
Sep 25, 4:32 AM EDT	Coastal Flood Watch	PHI	11 hr
Sep 25, 3:30 PM EDT	Coastal Flood Warning	PHI	33 hr
Sep 26, 3:18 AM EDT	High Surf Advisory	PHI	41 hr
Sep 27, 3:06 AM EDT	Coastal Flood Advisory	PHI	25 hr
Sep 28, 4:26 AM EDT	Coastal Flood Advisory	PHI	3 days
Sep 30, 5:34 PM EDT	Coastal Flood Advisory	PHI	20 hr
Oct 14, 5:33 AM EDT	Coastal Flood Advisory	PHI	59 hr
Oct 15, 2:34 PM EDT	Coastal Flood Advisory	PHI	23 hr
Oct 23, 3:28 PM EDT	Frost Advisory	PHI	18 hr
Oct 28, 4:41 PM EDT	Coastal Flood Advisory	PHI	20 hr
Oct 29, 4:46 PM EDT	Coastal Flood Advisory	PHI	21 hr
Oct 31, 3:10 AM EDT	Freeze Watch	PHI	24 hr
Nov 1, 3:16 AM EDT	Frost Advisory	PHI	31 hr
Nov 1, 3:16 AM EDT	Freeze Warning	PHI	31 hr
Nov 21, 6:54 PM EST	Wind Advisory	PHI	10 hr
Dec 2, 8:05 PM EST	Dense Fog Advisory	PHI	6 hr
Dec 3, 1:19 PM EST	Dense Fog Advisory	PHI	8 hr
Dec 8, 3:26 PM EST	Flood Watch	PHI	66 hr
Dec 10, 3:20 AM EST	Wind Advisory	PHI	18 hr
Dec 15, 3:36 PM EST	Flood Watch	PHI	69 hr
Dec 16, 3:56 AM EST	Wind Advisory	PHI	51 hr
Dec 16, 1:58 PM EST	Coastal Flood Advisory	PHI	52 hr
Dec 25, 3:20 PM EST	Dense Fog Advisory	PHI	21 hr
Dec 27, 11:38 AM EST	Flood Watch	PHI	22 hr
Dec 28, 2:33 AM EST	Coastal Flood Advisory	PHI	39 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	14
Severe Thunderstorm Watch	9
Tornado Watch	2
Mesoscale Discussion	24
Special Weather Statement	18
Flooding
Flash Flood Warning	1
Flood Watch	6
Areal Flood Advisory	2
Heat
Heat Advisory	1
Cold
Freeze Warning	2
Freeze Watch	1
Frost Advisory	4
Wind and dust
High Wind Warning	1
High Wind Watch	1
Wind Advisory	8
Fire
Red Flag Warning	4
Fire Weather Watch	1
Fog and smoke
Dense Fog Advisory	8
Coast and beach
Coastal Flood Warning	3
Coastal Flood Watch	3
Coastal Flood Advisory	32
High Surf Advisory	4
Rip Current Statement	7

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2022 2024

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.