Alert archive / New Jersey / Atlantic County

Weather alerts in Atlantic County, New Jersey, 2010

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

Atlantic County and its neighbors

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

Alerts
262
Warnings
59
Watches
30
Advisories
72
Busiest month
July34 alerts
Busiest day
May 15, 20108 alerts

Over time

By month

Warning verification

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

0 of 1 tornado warnings covering Atlantic County in 2010 had a tornado report inside them.

Atlantic County, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings211052%11100%36 min
Flash flood warnings110%250%27 min

Each office's whole area, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Philadelphia/Mount Holly: tornado warnings12192%425%1 min
NWS Philadelphia/Mount Holly: severe thunderstorm warnings18310742%25282%29 min
NWS Philadelphia/Mount Holly: flash flood warnings14286%1560%45 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.

IssuedProductOfficeLasted
Jan 2, 10:45 AM ESTWind AdvisoryPHI32 hr
Jan 7, 3:31 PM ESTWinter Weather AdvisoryPHI17 hr
Jan 24, 3:13 PM ESTWind AdvisoryPHI22 hr
Jan 25, 11:16 AM ESTSevere Thunderstorm WarningPHI50 min
Jan 25, 11:19 AM ESTAreal Flood AdvisoryPHI29 days
Jan 25, 11:46 AM ESTSevere Thunderstorm WarningPHI59 min
Jan 30, 4:16 AM ESTWinter Storm WarningPHI23 hr
Jan 30, 4:16 AM ESTWinter Weather AdvisoryPHI20 hr
Jan 30, 11:03 AM ESTMesoscale DiscussionSPC5 hr
Jan 30, 3:37 PM ESTCoastal Flood AdvisoryPHI19 hr
Feb 2, 11:07 AM ESTWinter Weather AdvisoryPHI20 hr
Feb 4, 3:23 AM ESTWinter Storm WatchPHI10 hr
Feb 4, 1:43 PM ESTBlizzard WarningPHI51 hr
Feb 4, 3:35 PM ESTCoastal Flood AdvisoryPHI61 hr
Feb 5, 6:58 PM ESTMesoscale DiscussionSPC4 hr
Feb 5, 11:53 PM ESTMesoscale DiscussionSPC4 hr
Feb 6, 12:03 PM ESTMesoscale DiscussionSPC4 hr
Feb 6, 4:17 PM ESTWinter Storm WarningPHI3 hr
Feb 8, 3:45 AM ESTWinter Storm WatchPHI24 hr
Feb 8, 3:51 PM ESTWinter Storm WarningPHI54 hr
Feb 8, 4:19 PM ESTWind AdvisoryPHI36 hr
Feb 9, 3:30 AM ESTWinter Weather AdvisoryPHI17 hr
Feb 9, 7:04 PM ESTMesoscale DiscussionSPC4 hr
Feb 10, 4:33 AM ESTBlizzard WarningPHI19 hr
Feb 10, 7:27 AM ESTMesoscale DiscussionSPC5 hr
Feb 10, 12:20 PM ESTMesoscale DiscussionSPC4 hr
Feb 23, 3:30 PM ESTWinter Storm WatchPHI24 hr
Feb 24, 3:16 PM ESTWinter Storm WarningPHI48 hr
Feb 24, 3:49 PM ESTAreal Flood AdvisoryPHI18 hr
Feb 25, 9:36 AM ESTAreal Flood AdvisoryPHI56 hr
Feb 25, 11:17 AM ESTWind AdvisoryPHI24 hr
Feb 28, 3:49 AM ESTCoastal Flood AdvisoryPHI6 hr
Mar 2, 4:45 AM ESTCoastal Flood AdvisoryPHI7 hr
Mar 2, 12:11 PM ESTCoastal Flood AdvisoryPHI42 hr
Mar 2, 3:25 PM ESTCoastal Flood WatchPHI12 hr
Mar 3, 3:38 AM ESTCoastal Flood WarningPHI23 hr
Mar 4, 5:46 AM ESTCoastal Flood AdvisoryPHI3 hr
Mar 11, 3:42 PM ESTFlood WatchPHI59 hr
Mar 12, 2:35 AM ESTWind AdvisoryPHI46 hr
Mar 12, 3:23 PM ESTCoastal Flood WarningPHI32 hr
Mar 12, 3:23 PM ESTCoastal Flood AdvisoryPHI41 hr
Mar 13, 10:36 AM ESTAreal Flood AdvisoryPHI14 hr
Mar 13, 2:01 PM ESTHigh Wind WarningPHI8 hr
Mar 13, 11:10 PM ESTCoastal Flood AdvisoryPHI3 days
Mar 14, 1:09 AM ESTAreal Flood WarningPHI5 days
Mar 26, 9:40 PM EDTCoastal Flood AdvisoryPHI11 hr
Mar 27, 3:39 PM EDTFlood WatchPHI3 days
Mar 28, 4:13 AM EDTCoastal Flood AdvisoryPHI68 hr
Mar 29, 7:24 AM EDTAreal Flood WarningPHI31 hr
Mar 29, 3:04 PM EDTCoastal Flood WarningPHI20 hr
Mar 30, 2:13 PM EDTAreal Flood WarningPHI24 hr
Mar 31, 2:29 PM EDTAreal Flood WarningPHI57 hr
Mar 31, 2:45 PM EDTCoastal Flood AdvisoryPHI8 hr
Apr 5, 10:00 AM EDTFire Weather WatchPHI18 hr
Apr 5, 10:00 AM EDTRed Flag WarningPHI8 hr
Apr 6, 3:30 PM EDTFire Weather WatchPHI13 hr
Apr 7, 4:02 AM EDTRed Flag WarningPHI17 hr
Apr 10, 10:50 AM EDTRed Flag WarningPHI8 hr
Apr 13, 3:30 PM EDTFrost AdvisoryPHI17 hr
Apr 14, 3:32 PM EDTFrost AdvisoryPHI16 hr
Apr 19, 4:18 PM EDTFrost AdvisoryPHI16 hr
Apr 22, 7:39 PM EDTSevere Thunderstorm WarningPHI36 min
Apr 23, 3:34 PM EDTFrost AdvisoryPHI16 hr
Apr 26, 4:10 AM EDTCoastal Flood AdvisoryPHI23 hr
Apr 27, 2:34 PM EDTFire Weather WatchPHI14 hr
Apr 27, 4:47 PM EDTCoastal Flood AdvisoryPHI5 hr
Apr 28, 4:12 AM EDTFire Weather WatchPHI16 hr
Apr 28, 4:12 AM EDTRed Flag WarningPHI16 hr
Apr 28, 7:55 PM EDTRed Flag WarningPHI24 hr
May 8, 4:15 AM EDTWind AdvisoryPHI25 hr
May 8, 2:02 PM EDTRed Flag WarningPHI6 hr
May 8, 7:59 PM EDTFire Weather WatchPHI8 hr
May 9, 4:02 AM EDTRed Flag WarningPHI16 hr
May 9, 3:57 PM EDTFire Weather WatchPHI12 hr
May 10, 4:17 AM EDTRed Flag WarningPHI16 hr
May 10, 2:32 PM EDTFreeze WarningPHI17 hr
May 14, 3:43 PM EDTSevere Thunderstorm WatchSPC6 hr
May 14, 7:19 PM EDTSevere Thunderstorm WarningPHI56 min
May 14, 8:15 PM EDTSevere Thunderstorm WarningPHI46 min
May 14, 8:29 PM EDTSevere Thunderstorm WarningPHI61 min
May 14, 8:36 PM EDTSevere Thunderstorm WarningPHI40 min
May 14, 9:31 PM EDTSpecial Weather StatementPHI59 min
May 14, 10:19 PM EDTSpecial Weather StatementPHI56 min
May 14, 10:30 PM EDTSevere Thunderstorm WarningPHI35 min
May 14, 10:59 PM EDTSpecial Weather StatementPHI61 min
May 14, 11:30 PM EDTSpecial Weather StatementPHI45 min
May 18, 3:18 PM EDTCoastal Flood AdvisoryPHI12 hr
May 23, 5:22 AM EDTSpecial Weather StatementPHI3 hr
May 27, 4:05 AM EDTCoastal Flood AdvisoryPHI19 hr
May 27, 10:04 PM EDTSpecial Weather StatementPHI56 min
Jun 3, 11:27 AM EDTMesoscale DiscussionSPC93 min
Jun 3, 1:32 PM EDTSevere Thunderstorm WatchSPC7 hr
Jun 3, 3:36 PM EDTMesoscale DiscussionSPC54 min
Jun 3, 6:28 PM EDTMesoscale DiscussionSPC62 min
Jun 4, 2:39 PM EDTSevere Thunderstorm WatchSPC8 hr
Jun 4, 4:24 PM EDTMesoscale DiscussionSPC66 min
Jun 4, 7:03 PM EDTMesoscale DiscussionSPC57 min
Jun 6, 11:08 AM EDTTornado WatchSPC8 hr
Jun 6, 11:42 AM EDTMesoscale DiscussionSPC63 min
Jun 6, 2:38 PM EDTMesoscale DiscussionSPC67 min
Jun 6, 6:23 PM EDTSpecial Weather StatementPHI67 min
Jun 13, 12:58 PM EDTMesoscale DiscussionSPC2 hr
Jun 13, 2:19 PM EDTSpecial Weather StatementPHI46 min
Jun 13, 9:45 PM EDTCoastal Flood StatementPHI4 hr
Jun 22, 5:06 PM EDTSevere Thunderstorm WatchSPC4 hr
Jun 22, 6:59 PM EDTMesoscale DiscussionSPC61 min
Jun 24, 12:16 PM EDTMesoscale DiscussionSPC89 min
Jun 24, 12:28 PM EDTSevere Thunderstorm WatchSPC8 hr
Jun 24, 3:07 PM EDTMesoscale DiscussionSPC53 min
Jun 24, 3:47 PM EDTSevere Thunderstorm WarningPHI58 min
Jun 24, 4:43 PM EDTSevere Thunderstorm WarningPHI62 min
Jun 28, 4:33 AM EDTHeat AdvisoryPHI12 hr
Jun 28, 1:12 PM EDTSevere Thunderstorm WatchSPC7 hr
Jun 28, 3:53 PM EDTMesoscale DiscussionSPC2 hr
Jun 28, 4:38 PM EDTSpecial Weather StatementPHI52 min
Jun 28, 5:16 PM EDTSpecial Weather StatementPHI59 min
Jun 30, 4:12 AM EDTRed Flag WarningPHI16 hr
Jul 1, 3:55 AM EDTRed Flag WarningPHI16 hr
Jul 6, 3:23 AM EDTHeat AdvisoryPHI17 hr
Jul 6, 4:04 PM EDTHeat AdvisoryPHI26 hr
Jul 7, 12:55 PM EDTRed Flag WarningPHI9 hr
Jul 10, 11:00 AM EDTAreal Flood AdvisoryPHI4 hr
Jul 11, 3:43 PM EDTCoastal Flood AdvisoryPHI6 hr
Jul 12, 2:56 PM EDTCoastal Flood AdvisoryPHI9 hr
Jul 13, 11:38 AM EDTAreal Flood AdvisoryPHI2 hr
Jul 13, 3:15 PM EDTCoastal Flood AdvisoryPHI9 hr
Jul 14, 12:08 AM EDTSpecial Weather StatementPHI67 min
Jul 14, 4:10 AM EDTSpecial Weather StatementPHI65 min
Jul 14, 12:47 PM EDTAreal Flood AdvisoryPHI3 hr
Jul 14, 2:36 PM EDTAreal Flood AdvisoryPHI3 hr
Jul 14, 8:57 PM EDTSpecial Weather StatementPHI78 min
Jul 17, 3:47 AM EDTSpecial Weather StatementPHI88 min
Jul 17, 5:08 AM EDTSpecial Weather StatementPHI82 min
Jul 19, 10:20 AM EDTSpecial Weather StatementPHI55 min
Jul 19, 7:39 PM EDTMesoscale DiscussionSPC96 min
Jul 20, 11:07 PM EDTSpecial Weather StatementPHI53 min
Jul 21, 7:00 PM EDTMesoscale DiscussionSPC90 min
Jul 21, 11:59 PM EDTSpecial Weather StatementPHI61 min
Jul 23, 1:09 PM EDTHeat AdvisoryPHI2 hr
Jul 23, 3:24 PM EDTHeat AdvisoryPHI51 hr
Jul 25, 10:48 AM EDTMesoscale DiscussionSPC27 min
Jul 25, 11:29 AM EDTSevere Thunderstorm WatchSPC8 hr
Jul 25, 12:50 PM EDTMesoscale DiscussionSPC55 min
Jul 25, 3:25 PM EDTMesoscale DiscussionSPC65 min
Jul 25, 3:27 PM EDTSevere Thunderstorm WarningPHI93 min
Jul 25, 3:40 PM EDTSevere Thunderstorm WarningPHI79 min
Jul 25, 4:11 PM EDTTornado WarningPHI34 min
Jul 29, 11:54 AM EDTSevere Thunderstorm WatchSPC7 hr
Jul 29, 2:28 PM EDTSpecial Weather StatementPHI92 min
Jul 29, 3:21 PM EDTAreal Flood AdvisoryPHI114 min
Jul 29, 3:43 PM EDTSpecial Weather StatementPHI32 min
Aug 4, 2:56 PM EDTHeat AdvisoryPHI29 hr
Aug 8, 11:20 AM EDTCoastal Flood StatementPHI12 hr
Aug 9, 3:30 AM EDTCoastal Flood StatementPHI19 hr
Aug 10, 3:30 AM EDTCoastal Flood StatementPHI20 hr
Aug 10, 5:00 PM EDTSpecial Weather StatementPHI45 min
Aug 10, 5:24 PM EDTSpecial Weather StatementPHI36 min
Aug 11, 3:55 AM EDTCoastal Flood StatementPHI20 hr
Aug 11, 3:02 PM EDTCoastal Flood AdvisoryPHI9 hr
Aug 12, 4:02 AM EDTCoastal Flood AdvisoryPHI35 hr
Aug 13, 2:54 PM EDTCoastal Flood StatementPHI16 hr
Aug 17, 1:29 PM EDTSpecial Weather StatementPHI61 min
Aug 17, 2:42 PM EDTSpecial Weather StatementPHI63 min
Aug 17, 3:27 PM EDTAreal Flood AdvisoryPHI2 hr
Aug 17, 3:58 PM EDTFlash Flood WarningPHI3 hr
Aug 22, 1:09 PM EDTSpecial Weather StatementPHI66 min
Aug 22, 3:19 PM EDTMesoscale DiscussionSPC56 min
Aug 22, 4:25 PM EDTSevere Thunderstorm WarningPHI65 min
Aug 23, 3:15 PM EDTCoastal Flood AdvisoryPHI8 hr
Aug 24, 3:35 AM EDTCoastal Flood AdvisoryPHI20 hr
Aug 24, 4:50 AM EDTCoastal Flood StatementPHI15 hr
Aug 25, 4:56 AM EDTCoastal Flood StatementPHI15 hr
Aug 29, 5:30 AM EDTCoastal Flood StatementPHI15 hr
Aug 29, 11:00 AM EDTTropical Storm WarningNHC7 days
Aug 30, 3:18 AM EDTCoastal Flood StatementPHI17 hr
Sep 1, 5:48 PM EDTTropical Storm WarningPHI48 hr
Sep 3, 5:27 PM EDTCoastal Flood StatementPHI13 hr
Sep 4, 4:19 AM EDTRed Flag WarningPHI13 hr
Sep 4, 9:36 AM EDTCoastal Flood StatementPHI10 hr
Sep 5, 8:35 AM EDTCoastal Flood StatementPHI11 hr
Sep 7, 4:27 AM EDTFire Weather WatchPHI11 hr
Sep 7, 3:42 PM EDTRed Flag WarningPHI27 hr
Sep 14, 11:00 AM EDTRed Flag WarningPHI7 hr
Sep 16, 4:37 PM EDTMesoscale DiscussionSPC53 min
Sep 16, 5:14 PM EDTSevere Thunderstorm WarningPHI61 min
Sep 16, 6:18 PM EDTSevere Thunderstorm WarningPHI42 min
Sep 16, 6:57 PM EDTSevere Thunderstorm WarningPHI50 min
Sep 16, 8:16 PM EDTSpecial Weather StatementPHI59 min
Sep 17, 3:33 PM EDTCoastal Flood AdvisoryPHI94 min
Sep 17, 5:07 PM EDTCoastal Flood StatementPHI3 days
Sep 19, 3:40 PM EDTHigh Surf AdvisoryPHI24 hr
Sep 21, 3:27 AM EDTCoastal Flood StatementPHI13 hr
Sep 22, 6:08 AM EDTCoastal Flood StatementPHI11 hr
Sep 22, 3:43 PM EDTSevere Thunderstorm WatchSPC7 hr
Sep 22, 7:14 PM EDTMesoscale DiscussionSPC61 min
Sep 22, 9:37 PM EDTSevere Thunderstorm WarningPHI68 min
Sep 27, 9:15 AM EDTSpecial Weather StatementPHI60 min
Sep 27, 1:03 PM EDTMesoscale DiscussionSPC87 min
Sep 28, 8:00 AM EDTMesoscale DiscussionSPC2 hr
Sep 28, 10:58 AM EDTTornado WatchSPC7 hr
Sep 28, 1:50 PM EDTMesoscale DiscussionSPC55 min
Sep 29, 3:52 AM EDTFlood WatchPHI49 hr
Sep 29, 4:00 AM EDTHigh Wind WatchPHI11 hr
Sep 29, 4:21 AM EDTHigh Surf AdvisoryPHI50 hr
Sep 29, 3:19 PM EDTCoastal Flood AdvisoryPHI30 hr
Sep 29, 3:24 PM EDTWind AdvisoryPHI38 hr
Sep 30, 4:55 AM EDTTornado WatchSPC8 hr
Sep 30, 8:25 AM EDTMesoscale DiscussionSPC95 min
Oct 1, 12:01 AM EDTMesoscale DiscussionSPC89 min
Oct 1, 2:04 AM EDTMesoscale DiscussionSPC26 min
Oct 1, 3:11 AM EDTAreal Flood WarningPHI12 hr
Oct 1, 3:29 AM EDTSevere Thunderstorm WarningPHI61 min
Oct 1, 4:25 AM EDTSpecial Weather StatementPHI65 min
Oct 1, 4:28 AM EDTAreal Flood WarningPHI10 hr
Oct 1, 5:07 AM EDTSpecial Weather StatementPHI53 min
Oct 3, 4:23 AM EDTCoastal Flood AdvisoryPHI43 hr
Oct 5, 3:26 PM EDTCoastal Flood StatementPHI6 hr
Oct 9, 2:54 AM EDTCoastal Flood StatementPHI8 hr
Oct 9, 3:15 PM EDTCoastal Flood StatementPHI21 hr
Oct 11, 3:38 PM EDTSevere Thunderstorm WatchSPC6 hr
Oct 12, 12:58 AM EDTSpecial Weather StatementPHI62 min
Oct 22, 4:31 AM EDTFrost AdvisoryPHI27 hr
Oct 27, 11:54 AM EDTMesoscale DiscussionSPC66 min
Oct 27, 12:13 PM EDTTornado WatchSPC8 hr
Oct 27, 3:21 PM EDTMesoscale DiscussionSPC54 min
Oct 27, 3:56 PM EDTSpecial Weather StatementPHI64 min
Nov 3, 8:30 PM EDTCoastal Flood AdvisoryPHI14 hr
Nov 4, 6:39 PM EDTCoastal Flood StatementPHI2 hr
Nov 4, 9:37 PM EDTCoastal Flood AdvisoryPHI12 hr
Nov 6, 2:30 AM EDTCoastal Flood StatementPHI9 hr
Nov 7, 5:22 AM ESTCoastal Flood StatementPHI5 hr
Nov 8, 3:40 AM ESTCoastal Flood StatementPHI7 hr
Nov 9, 3:08 PM ESTCoastal Flood AdvisoryPHI22 hr
Nov 10, 1:32 PM ESTCoastal Flood AdvisoryPHI29 hr
Nov 12, 4:31 AM ESTCoastal Flood AdvisoryPHI11 hr
Nov 14, 11:02 PM ESTDense Fog AdvisoryPHI11 hr
Nov 15, 3:16 PM ESTDense Fog AdvisoryPHI12 hr
Nov 16, 3:27 PM ESTWind AdvisoryPHI27 hr
Nov 17, 12:05 AM ESTSpecial Weather StatementPHI55 min
Nov 17, 12:43 AM ESTSpecial Weather StatementPHI62 min
Nov 17, 3:13 AM ESTSevere Thunderstorm WarningPHI62 min
Nov 30, 3:15 PM ESTWind AdvisoryPHI23 hr
Dec 1, 7:43 AM ESTSpecial Weather StatementPHI47 min
Dec 1, 8:36 AM ESTSpecial Weather StatementPHI54 min
Dec 1, 9:31 AM ESTSpecial Weather StatementPHI59 min
Dec 1, 10:49 AM ESTSpecial Weather StatementPHI56 min
Dec 1, 11:48 AM ESTSpecial Weather StatementPHI57 min
Dec 1, 12:12 PM ESTSevere Thunderstorm WarningPHI63 min
Dec 1, 1:16 PM ESTSevere Thunderstorm WarningPHI44 min
Dec 5, 4:51 AM ESTCoastal Flood StatementPHI3 hr
Dec 16, 11:47 AM ESTWinter Weather AdvisoryPHI7 hr
Dec 22, 6:09 AM ESTCoastal Flood AdvisoryPHI4 hr
Dec 24, 4:25 AM ESTCoastal Flood StatementPHI8 hr
Dec 25, 4:16 AM ESTWinter Storm WatchPHI11 hr
Dec 25, 3:24 PM ESTWinter Storm WarningPHI38 hr
Dec 26, 3:20 AM ESTCoastal Flood WarningPHI25 hr
Dec 26, 3:20 AM ESTCoastal Flood AdvisoryPHI25 hr
Dec 26, 3:52 AM ESTBlizzard WarningPHI28 hr
Dec 26, 6:56 AM ESTMesoscale DiscussionSPC6 hr
Dec 26, 12:31 PM ESTMesoscale DiscussionSPC6 hr
Dec 27, 2:49 AM ESTMesoscale DiscussionSPC4 hr
Dec 27, 4:14 AM ESTWind AdvisoryPHI17 hr

By product

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

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20092011

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.