Alert archive / Delaware / Sussex County
Weather alerts in Sussex County, Delaware, 2011
303 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Sussex County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 303
- Warnings
- 57
- Watches
- 31
- Advisories
- 82
- Busiest month
- August59 alerts
- Busiest day
- August 27, 201113 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 3 tornado warnings covering Sussex County in 2011 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 13 minutes after it went out.
Sussex County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 1 | 67% | 1 | 100% | 13 min |
| Severe thunderstorm warnings | 25 | 10 | 60% | 12 | 75% | 28 min |
| Flash flood warnings | 7 | 1 | 86% | 1 | 100% | 37 min |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Philadelphia/Mount Holly: tornado warnings | 29 | 2 | 93% | 7 | 29% | 17 min |
| NWS Philadelphia/Mount Holly: severe thunderstorm warnings | 307 | 164 | 47% | 361 | 86% | 25 min |
| NWS Philadelphia/Mount Holly: flash flood warnings | 68 | 12 | 82% | 21 | 67% | 70 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 7, 3:34 PM EST | Winter Weather Advisory | PHI | 27 hr |
| Jan 8, 3:22 AM EST | Winter Storm Warning | PHI | 15 hr |
| Jan 10, 4:01 AM EST | Winter Storm Watch | PHI | 24 hr |
| Jan 10, 3:42 PM EST | Winter Storm Warning | PHI | 37 hr |
| Jan 11, 4:24 AM EST | Winter Weather Advisory | PHI | 26 hr |
| Jan 17, 4:11 AM EST | Winter Weather Advisory | PHI | 32 hr |
| Jan 17, 4:19 PM EST | Coastal Flood Advisory | PHI | 17 hr |
| Jan 20, 3:35 AM EST | Winter Weather Advisory | PHI | 29 hr |
| Jan 26, 4:07 AM EST | Winter Weather Advisory | PHI | 23 hr |
| Jan 26, 10:21 AM EST | Winter Weather Advisory | PHI | 16 hr |
| Jan 26, 2:05 PM EST | Coastal Flood Advisory | PHI | 13 hr |
| Jan 26, 2:19 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 26, 4:42 PM EST | Special Weather Statement | PHI | 63 min |
| Jan 31, 3:18 PM EST | Winter Weather Advisory | PHI | 24 hr |
| Feb 1, 3:56 AM EST | Coastal Flood Statement | PHI | 30 hr |
| Feb 8, 3:57 AM EST | Wind Advisory | PHI | 16 hr |
| Feb 14, 3:11 AM EST | Wind Advisory | PHI | 23 hr |
| Feb 14, 9:33 AM EST | Red Flag Warning | PHI | 7 hr |
| Feb 15, 3:10 AM EST | Red Flag Warning | PHI | 13 hr |
| Feb 18, 3:40 AM EST | Fire Weather Watch | PHI | 12 hr |
| Feb 18, 3:03 PM EST | High Wind Watch | PHI | 6 hr |
| Feb 18, 3:30 PM EST | Red Flag Warning | PHI | 29 hr |
| Feb 18, 9:06 PM EST | High Wind Warning | PHI | 22 hr |
| Feb 19, 7:26 PM EST | Wind Advisory | PHI | 5 hr |
| Feb 21, 3:13 PM EST | Winter Weather Advisory | PHI | 15 hr |
| Feb 21, 3:30 PM EST | Coastal Flood Statement | PHI | 10 hr |
| Feb 21, 9:37 PM EST | Coastal Flood Advisory | PHI | 3 hr |
| Feb 24, 4:16 AM EST | High Wind Watch | PHI | 11 hr |
| Feb 24, 3:07 PM EST | High Wind Warning | PHI | 29 hr |
| Feb 25, 7:53 AM EST | Special Weather Statement | PHI | 82 min |
| Feb 25, 9:15 AM EST | Special Weather Statement | PHI | 90 min |
| Feb 25, 10:28 AM EST | Special Weather Statement | PHI | 62 min |
| Feb 25, 11:36 AM EST | Mesoscale Discussion | SPC | 84 min |
| Feb 25, 12:19 PM EST | Severe Thunderstorm Watch | SPC | 3 hr |
| Feb 25, 2:40 PM EST | Mesoscale Discussion | SPC | 65 min |
| Feb 25, 7:55 PM EST | Wind Advisory | PHI | 3 hr |
| Feb 28, 12:49 PM EST | Mesoscale Discussion | SPC | 56 min |
| Feb 28, 12:59 PM EST | Special Weather Statement | PHI | 61 min |
| Feb 28, 2:35 PM EST | Special Weather Statement | PHI | 85 min |
| Mar 8, 4:18 AM EST | Flood Watch | PHI | 3 days |
| Mar 10, 7:28 AM EST | Areal Flood Advisory | PHI | 6 hr |
| Mar 10, 5:17 PM EST | Wind Advisory | PHI | 5 hr |
| Mar 10, 11:47 PM EST | Areal Flood Warning | PHI | 12 hr |
| Mar 21, 7:58 AM EDT | Special Weather Statement | PHI | 92 min |
| Mar 23, 2:15 PM EDT | Coastal Flood Advisory | PHI | 18 hr |
| Mar 23, 6:53 PM EDT | Special Weather Statement | PHI | 112 min |
| Mar 23, 8:30 PM EDT | Special Weather Statement | PHI | 2 hr |
| Mar 23, 10:36 PM EDT | Special Weather Statement | PHI | 114 min |
| Mar 26, 3:25 PM EDT | Winter Weather Advisory | PHI | 19 hr |
| Apr 3, 4:09 PM EDT | Wind Advisory | PHI | 26 hr |
| Apr 4, 2:15 PM EDT | Red Flag Warning | PHI | 4 hr |
| Apr 4, 3:24 PM EDT | Wind Advisory | PHI | 22 hr |
| Apr 5, 2:13 AM EDT | Mesoscale Discussion | SPC | 32 min |
| Apr 5, 2:18 AM EDT | Tornado Watch | SPC | 8 hr |
| Apr 5, 3:34 AM EDT | Mesoscale Discussion | SPC | 116 min |
| Apr 5, 5:28 AM EDT | Severe Thunderstorm Warning | PHI | 62 min |
| Apr 5, 10:20 AM EDT | Severe Thunderstorm Warning | PHI | 40 min |
| Apr 5, 3:05 PM EDT | Frost Advisory | PHI | 13 hr |
| Apr 15, 3:06 PM EDT | Coastal Flood Watch | PHI | 12 hr |
| Apr 15, 3:10 PM EDT | Wind Advisory | PHI | 32 hr |
| Apr 16, 3:25 AM EDT | Coastal Flood Warning | PHI | 31 hr |
| Apr 16, 8:30 PM EDT | Special Weather Statement | PHI | 30 min |
| Apr 16, 8:38 PM EDT | Severe Thunderstorm Warning | PHI | 52 min |
| Apr 18, 4:05 PM EDT | Coastal Flood Statement | PHI | 12 hr |
| Apr 19, 3:37 PM EDT | Coastal Flood Statement | PHI | 6 hr |
| Apr 19, 9:48 PM EDT | Coastal Flood Advisory | PHI | 5 hr |
| Apr 24, 3:40 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 24, 10:39 PM EDT | Special Weather Statement | PHI | 3 hr |
| Apr 27, 3:55 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Apr 27, 8:15 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 28, 4:05 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 28, 9:45 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 28, 1:13 PM EDT | Special Weather Statement | PHI | 62 min |
| Apr 28, 2:00 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Apr 28, 5:04 PM EDT | Special Weather Statement | PHI | 56 min |
| Apr 28, 5:38 PM EDT | Severe Thunderstorm Warning | PHI | 39 min |
| May 4, 7:48 AM EDT | Special Weather Statement | PHI | 57 min |
| May 10, 3:30 PM EDT | Coastal Flood Statement | PHI | 12 hr |
| May 14, 3:48 AM EDT | Coastal Flood Advisory | PHI | 61 hr |
| May 14, 10:43 PM EDT | Special Weather Statement | PHI | 92 min |
| May 14, 11:46 PM EDT | Special Weather Statement | PHI | 89 min |
| May 15, 12:04 AM EDT | Special Weather Statement | PHI | 56 min |
| May 15, 4:47 PM EDT | Special Weather Statement | PHI | 58 min |
| May 16, 3:35 PM EDT | Special Weather Statement | PHI | 55 min |
| May 16, 4:37 PM EDT | Coastal Flood Advisory | PHI | 17 hr |
| May 16, 4:48 PM EDT | Special Weather Statement | PHI | 57 min |
| May 17, 3:45 AM EDT | Coastal Flood Watch | PHI | 12 hr |
| May 17, 5:35 AM EDT | Special Weather Statement | PHI | 3 hr |
| May 17, 3:57 PM EDT | Coastal Flood Advisory | PHI | 18 hr |
| May 18, 4:00 AM EDT | Coastal Flood Advisory | PHI | 25 hr |
| May 18, 12:55 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 18, 3:08 PM EDT | Mesoscale Discussion | SPC | 67 min |
| May 19, 3:52 PM EDT | Coastal Flood Statement | PHI | 8 hr |
| May 19, 6:53 PM EDT | Special Weather Statement | PHI | 67 min |
| May 19, 9:29 PM EDT | Special Weather Statement | PHI | 61 min |
| May 19, 11:11 PM EDT | Special Weather Statement | PHI | 64 min |
| May 19, 11:48 PM EDT | Special Weather Statement | PHI | 57 min |
| May 23, 8:04 PM EDT | Severe Thunderstorm Warning | PHI | 56 min |
| May 28, 2:06 PM EDT | Special Weather Statement | PHI | 54 min |
| May 28, 2:12 PM EDT | Severe Thunderstorm Warning | PHI | 48 min |
| May 28, 2:51 PM EDT | Areal Flood Advisory | PHI | 99 min |
| May 28, 3:52 PM EDT | Special Weather Statement | PHI | 38 min |
| Jun 1, 2:24 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 1, 6:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 1, 8:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 7, 3:15 PM EDT | Heat Advisory | PHI | 53 hr |
| Jun 9, 1:45 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jun 10, 1:01 AM EDT | Special Weather Statement | PHI | 119 min |
| Jun 10, 5:27 PM EDT | Special Weather Statement | PHI | 63 min |
| Jun 11, 5:53 AM EDT | Special Weather Statement | PHI | 67 min |
| Jun 11, 6:34 AM EDT | Special Weather Statement | PHI | 56 min |
| Jun 11, 6:52 AM EDT | Areal Flood Advisory | PHI | 113 min |
| Jun 11, 2:43 PM EDT | Special Weather Statement | PHI | 47 min |
| Jun 11, 3:05 PM EDT | Special Weather Statement | PHI | 55 min |
| Jun 11, 4:09 PM EDT | Special Weather Statement | PHI | 66 min |
| Jun 12, 6:50 PM EDT | Severe Thunderstorm Warning | PHI | 55 min |
| Jun 12, 7:43 PM EDT | Special Weather Statement | PHI | 62 min |
| Jun 13, 10:56 AM EDT | Coastal Flood Advisory | PHI | 11 hr |
| Jun 14, 4:17 AM EDT | Coastal Flood Advisory | PHI | 20 hr |
| Jun 14, 9:31 PM EDT | Special Weather Statement | PHI | 89 min |
| Jun 14, 10:19 PM EDT | Special Weather Statement | PHI | 56 min |
| Jun 15, 3:57 AM EDT | Coastal Flood Advisory | PHI | 20 hr |
| Jun 16, 3:05 PM EDT | Coastal Flood Statement | PHI | 12 hr |
| Jun 16, 11:45 PM EDT | Special Weather Statement | PHI | 60 min |
| Jun 17, 12:51 AM EDT | Special Weather Statement | PHI | 54 min |
| Jun 17, 8:00 PM EDT | Special Weather Statement | PHI | 60 min |
| Jun 22, 2:02 AM EDT | Special Weather Statement | PHI | 58 min |
| Jun 22, 2:31 AM EDT | Areal Flood Advisory | PHI | 119 min |
| Jun 22, 12:18 PM EDT | Special Weather Statement | PHI | 57 min |
| Jun 24, 12:46 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 24, 3:35 PM EDT | Special Weather Statement | PHI | 55 min |
| Jun 24, 4:13 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jul 3, 8:34 PM EDT | Severe Thunderstorm Warning | PHI | 20 min |
| Jul 3, 8:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jul 4, 5:26 PM EDT | Special Weather Statement | PHI | 64 min |
| Jul 4, 5:48 PM EDT | Special Weather Statement | PHI | 57 min |
| Jul 5, 2:40 PM EDT | Special Weather Statement | PHI | 65 min |
| Jul 6, 1:14 PM EDT | Special Weather Statement | PHI | 91 min |
| Jul 6, 2:41 PM EDT | Areal Flood Advisory | PHI | 75 min |
| Jul 8, 3:58 AM EDT | Flash Flood Watch | PHI | 19 hr |
| Jul 8, 1:51 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 8, 4:17 PM EDT | Special Weather Statement | PHI | 88 min |
| Jul 8, 5:52 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jul 8, 6:02 PM EDT | Areal Flood Advisory | PHI | 4 hr |
| Jul 8, 6:23 PM EDT | Severe Thunderstorm Warning | PHI | 82 min |
| Jul 8, 7:46 PM EDT | Special Weather Statement | PHI | 59 min |
| Jul 8, 7:49 PM EDT | Severe Thunderstorm Warning | PHI | 56 min |
| Jul 8, 8:51 PM EDT | Special Weather Statement | PHI | 54 min |
| Jul 11, 3:13 PM EDT | Heat Advisory | PHI | 29 hr |
| Jul 11, 9:01 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jul 11, 10:28 PM EDT | Severe Thunderstorm Warning | PHI | 33 min |
| Jul 13, 2:21 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 14, 5:11 AM EDT | Coastal Flood Statement | PHI | 16 hr |
| Jul 14, 3:47 PM EDT | Coastal Flood Advisory | PHI | 12 hr |
| Jul 19, 2:13 PM EDT | Special Weather Statement | PHI | 92 min |
| Jul 19, 2:29 PM EDT | Excessive Heat Warning | PHI | 5 days |
| Jul 19, 2:43 PM EDT | Severe Thunderstorm Warning | PHI | 92 min |
| Jul 19, 3:45 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Jul 19, 4:25 PM EDT | Special Weather Statement | PHI | 80 min |
| Jul 19, 4:40 PM EDT | Severe Thunderstorm Warning | PHI | 32 min |
| Jul 19, 8:51 PM EDT | Special Weather Statement | PHI | 54 min |
| Jul 19, 9:27 PM EDT | Special Weather Statement | PHI | 93 min |
| Jul 20, 4:04 AM EDT | Excessive Heat Watch | PHI | 11 hr |
| Jul 23, 2:28 PM EDT | Special Weather Statement | PHI | 62 min |
| Jul 23, 3:31 PM EDT | Special Weather Statement | PHI | 59 min |
| Jul 24, 3:48 AM EDT | Heat Advisory | PHI | 16 hr |
| Jul 24, 1:30 PM EDT | Special Weather Statement | PHI | 60 min |
| Jul 24, 2:04 PM EDT | Severe Thunderstorm Warning | PHI | 56 min |
| Jul 24, 2:07 PM EDT | Special Weather Statement | PHI | 53 min |
| Jul 24, 2:12 PM EDT | Severe Thunderstorm Warning | PHI | 63 min |
| Jul 24, 2:59 PM EDT | Areal Flood Advisory | PHI | 4 hr |
| Jul 24, 3:05 PM EDT | Severe Thunderstorm Warning | PHI | 55 min |
| Jul 24, 3:28 PM EDT | Special Weather Statement | PHI | 62 min |
| Jul 24, 3:40 PM EDT | Special Weather Statement | PHI | 65 min |
| Jul 24, 4:28 PM EDT | Special Weather Statement | PHI | 62 min |
| Jul 25, 2:10 AM EDT | Special Weather Statement | PHI | 2 hr |
| Jul 25, 5:02 PM EDT | Areal Flood Advisory | PHI | 2 hr |
| Jul 25, 5:04 PM EDT | Special Weather Statement | PHI | 56 min |
| Jul 25, 6:10 PM EDT | Areal Flood Advisory | PHI | 77 min |
| Jul 28, 3:53 PM EDT | Heat Advisory | PHI | 30 hr |
| Jul 31, 4:56 PM EDT | Special Weather Statement | PHI | 64 min |
| Aug 1, 3:15 PM EDT | Special Weather Statement | PHI | 45 min |
| Aug 1, 3:38 PM EDT | Severe Thunderstorm Warning | PHI | 37 min |
| Aug 1, 3:59 PM EDT | Flash Flood Warning | PHI | 4 hr |
| Aug 1, 7:31 PM EDT | Special Weather Statement | PHI | 119 min |
| Aug 1, 9:29 PM EDT | Special Weather Statement | PHI | 2 hr |
| Aug 4, 3:55 AM EDT | Coastal Flood Advisory | PHI | 11 hr |
| Aug 9, 7:07 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Aug 13, 1:20 PM EDT | Special Weather Statement | PHI | 115 min |
| Aug 14, 1:51 AM EDT | Areal Flood Advisory | PHI | 6 hr |
| Aug 14, 2:27 AM EDT | Flash Flood Warning | PHI | 4 hr |
| Aug 14, 3:42 AM EDT | Flash Flood Watch | PHI | 25 hr |
| Aug 15, 3:18 PM EDT | Severe Thunderstorm Warning | PHI | 57 min |
| Aug 15, 3:25 PM EDT | Special Weather Statement | PHI | 3 hr |
| Aug 19, 1:20 PM EDT | Special Weather Statement | PHI | 85 min |
| Aug 19, 1:42 PM EDT | Severe Thunderstorm Warning | PHI | 63 min |
| Aug 19, 2:09 PM EDT | Areal Flood Advisory | PHI | 92 min |
| Aug 19, 2:59 PM EDT | Severe Thunderstorm Warning | PHI | 61 min |
| Aug 19, 3:13 PM EDT | Special Weather Statement | PHI | 92 min |
| Aug 19, 3:13 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Aug 19, 3:53 PM EDT | Areal Flood Advisory | PHI | 5 hr |
| Aug 19, 4:23 PM EDT | Severe Thunderstorm Warning | PHI | 82 min |
| Aug 19, 4:42 PM EDT | Severe Thunderstorm Warning | PHI | 63 min |
| Aug 19, 6:34 PM EDT | Areal Flood Advisory | PHI | 2 hr |
| Aug 19, 9:18 PM EDT | Special Weather Statement | PHI | 117 min |
| Aug 20, 7:00 PM EDT | Tropical Storm Warning | NHC | 8 days |
| Aug 21, 5:00 AM EDT | Hurricane Watch | NHC | 5 days |
| Aug 21, 11:00 AM EDT | Hurricane Warning | NHC | 7 days |
| Aug 21, 11:54 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 21, 12:52 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 21, 5:20 PM EDT | Areal Flood Advisory | PHI | 115 min |
| Aug 21, 6:29 PM EDT | Special Weather Statement | PHI | 61 min |
| Aug 21, 7:03 PM EDT | Severe Thunderstorm Warning | PHI | 42 min |
| Aug 21, 7:12 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Aug 21, 7:17 PM EDT | Areal Flood Advisory | PHI | 118 min |
| Aug 25, 2:38 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Aug 25, 3:11 PM EDT | Severe Thunderstorm Warning | PHI | 34 min |
| Aug 25, 4:36 PM EDT | Flood Watch | PHI | 68 hr |
| Aug 25, 5:26 PM EDT | Hurricane Watch | PHI | 25 hr |
| Aug 25, 7:27 PM EDT | Special Weather Statement | PHI | 93 min |
| Aug 25, 7:55 PM EDT | Severe Thunderstorm Warning | PHI | 51 min |
| Aug 26, 5:16 AM EDT | Hurricane Warning | PHI | 55 hr |
| Aug 26, 5:16 AM EDT | Tropical Storm Warning | PHI | 66 hr |
| Aug 27, 7:52 AM EDT | Mesoscale Discussion | SPC | 113 min |
| Aug 27, 10:31 AM EDT | Mesoscale Discussion | SPC | 29 min |
| Aug 27, 10:41 AM EDT | Tornado Watch | SPC | 9 hr |
| Aug 27, 12:12 PM EDT | Tornado Warning | PHI | 28 min |
| Aug 27, 1:01 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Aug 27, 1:28 PM EDT | Special Weather Statement | PHI | 62 min |
| Aug 27, 2:14 PM EDT | Areal Flood Warning | PHI | 6 hr |
| Aug 27, 2:36 PM EDT | Special Weather Statement | PHI | 54 min |
| Aug 27, 4:44 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 27, 6:14 PM EDT | Special Weather Statement | PHI | 31 min |
| Aug 27, 6:22 PM EDT | Tornado Warning | PHI | 23 min |
| Aug 27, 7:27 PM EDT | Flash Flood Warning | PHI | 12 hr |
| Aug 27, 7:56 PM EDT | Tornado Watch | SPC | 9 hr |
| Aug 27, 8:28 PM EDT | Flash Flood Warning | PHI | 12 hr |
| Aug 27, 8:33 PM EDT | Tornado Warning | PHI | 27 min |
| Aug 28, 7:07 AM EDT | Areal Flood Warning | PHI | 12 hr |
| Aug 28, 7:03 PM EDT | Areal Flood Warning | PHI | 22 hr |
| Sep 2, 3:41 AM EDT | Coastal Flood Advisory | PHI | 16 hr |
| Sep 6, 4:17 AM EDT | Special Weather Statement | PHI | 43 min |
| Sep 6, 5:44 PM EDT | Special Weather Statement | PHI | 2 hr |
| Sep 6, 10:21 PM EDT | Flash Flood Warning | PHI | 3 hr |
| Sep 7, 6:12 AM EDT | Rip Current Statement | PHI | 65 hr |
| Sep 8, 1:29 AM EDT | Areal Flood Advisory | PHI | 4 hr |
| Sep 8, 3:26 AM EDT | Flash Flood Warning | PHI | 5 hr |
| Sep 8, 9:23 AM EDT | Areal Flood Advisory | PHI | 4 hr |
| Sep 8, 1:51 PM EDT | Areal Flood Advisory | PHI | 6 hr |
| Sep 8, 3:53 PM EDT | Flash Flood Warning | PHI | 4 hr |
| Sep 8, 7:41 PM EDT | Areal Flood Warning | PHI | 14 hr |
| Sep 11, 6:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Sep 15, 7:48 PM EDT | Wind Advisory | PHI | 4 hr |
| Sep 22, 3:43 AM EDT | Flood Watch | PHI | 45 hr |
| Sep 23, 4:33 PM EDT | Areal Flood Warning | PHI | 5 hr |
| Sep 26, 9:39 PM EDT | Coastal Flood Statement | PHI | 13 hr |
| Sep 27, 3:00 PM EDT | Coastal Flood Statement | PHI | 8 hr |
| Sep 28, 4:10 AM EDT | Coastal Flood Advisory | PHI | 7 hr |
| Sep 28, 8:30 AM EDT | Special Weather Statement | PHI | 2 hr |
| Sep 28, 9:10 AM EDT | Special Weather Statement | PHI | 35 min |
| Sep 28, 9:32 AM EDT | Areal Flood Advisory | PHI | 3 hr |
| Sep 28, 1:31 PM EDT | Special Weather Statement | PHI | 59 min |
| Sep 28, 2:14 PM EDT | Areal Flood Advisory | PHI | 2 hr |
| Sep 28, 3:29 PM EDT | Coastal Flood Statement | PHI | 9 hr |
| Sep 29, 3:34 AM EDT | Coastal Flood Advisory | PHI | 14 hr |
| Sep 29, 7:39 AM EDT | Special Weather Statement | PHI | 66 min |
| Sep 30, 3:40 AM EDT | Coastal Flood Advisory | PHI | 13 hr |
| Sep 30, 7:25 PM EDT | Special Weather Statement | PHI | 35 min |
| Oct 1, 4:01 AM EDT | Coastal Flood Advisory | PHI | 16 hr |
| Oct 12, 4:04 AM EDT | Coastal Flood Advisory | PHI | 8 hr |
| Oct 12, 6:51 PM EDT | Coastal Flood Statement | PHI | 4 hr |
| Oct 13, 2:45 AM EDT | Coastal Flood Advisory | PHI | 19 hr |
| Oct 14, 12:15 AM EDT | Coastal Flood Advisory | PHI | 13 hr |
| Oct 19, 3:29 AM EDT | Coastal Flood Statement | PHI | 18 hr |
| Oct 19, 11:30 PM EDT | Special Weather Statement | PHI | 90 min |
| Oct 20, 12:09 AM EDT | Special Weather Statement | PHI | 66 min |
| Oct 26, 11:45 AM EDT | Coastal Flood Advisory | PHI | 24 hr |
| Oct 27, 12:36 PM EDT | Coastal Flood Advisory | PHI | 28 hr |
| Oct 28, 4:10 AM EDT | Coastal Flood Watch | PHI | 11 hr |
| Oct 28, 3:26 PM EDT | Coastal Flood Warning | PHI | 23 hr |
| Oct 28, 4:18 PM EDT | Wind Advisory | PHI | 31 hr |
| Oct 29, 3:28 PM EDT | Freeze Watch | PHI | 12 hr |
| Oct 29, 10:43 PM EDT | Coastal Flood Statement | PHI | 3 hr |
| Oct 30, 3:41 AM EDT | Coastal Flood Advisory | PHI | 10 hr |
| Oct 30, 3:55 AM EDT | Freeze Warning | PHI | 29 hr |
| Nov 9, 5:29 AM EST | Dense Fog Advisory | PHI | 5 hr |
| Nov 9, 10:38 PM EST | Dense Fog Advisory | PHI | 12 hr |
| Nov 22, 2:45 PM EST | Coastal Flood Statement | PHI | 7 hr |
| Nov 22, 9:32 PM EST | Coastal Flood Advisory | PHI | 15 hr |
| Nov 23, 5:13 AM EST | Areal Flood Advisory | PHI | 3 hr |
| Nov 23, 2:29 PM EST | Coastal Flood Statement | PHI | 11 hr |
| Nov 24, 1:48 AM EST | Coastal Flood Advisory | PHI | 13 hr |
| Nov 24, 9:19 PM EST | Coastal Flood Advisory | PHI | 13 hr |
| Nov 29, 4:27 PM EST | Areal Flood Advisory | PHI | 4 hr |
| Dec 4, 10:44 PM EST | Dense Fog Advisory | PHI | 11 hr |
| Dec 7, 3:45 AM EST | Wind Advisory | PHI | 24 hr |
| Dec 7, 7:19 PM EST | Mesoscale Discussion | SPC | 26 min |
| Dec 22, 9:43 PM EST | Wind Advisory | PHI | 9 hr |
| Dec 24, 4:46 AM EST | Coastal Flood Statement | PHI | 5 hr |
| Dec 25, 5:48 AM EST | Coastal Flood Statement | PHI | 5 hr |
| Dec 27, 3:41 AM EST | Wind Advisory | PHI | 18 hr |
| Dec 27, 6:08 PM EST | Special Weather Statement | PHI | 52 min |
| Dec 27, 7:12 PM EST | Special Weather Statement | PHI | 108 min |
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 archive20102012
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.