Alert archive / Pennsylvania / Montgomery County
Weather alerts in Montgomery County, Pennsylvania, 2023
265 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Montgomery County and its neighbors
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Alerts
- 265
- Warnings
- 103
- Watches
- 32
- Advisories
- 57
- Busiest month
- July80 alerts
- Busiest day
- June 27, 202318 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 5 tornado warnings covering Montgomery County in 2023 had a tornado report inside them.
Montgomery County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 5 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 41 | 27 | 34% | 37 | 84% | 19 min |
| Flash flood warnings | 21 | 15 | 29% | 10 | 100% | 81 min |
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 3, 6:54 PM EST | Dense Fog Advisory | PHI | 16 hr |
| Jan 26, 12:50 AM EST | Areal Flood Warning | PHI | 5 hr |
| Feb 3, 7:55 AM EST | Special Weather Statement | PHI | 35 min |
| Feb 3, 8:23 AM EST | Special Weather Statement | PHI | 52 min |
| Feb 21, 2:22 PM EST | Mesoscale Discussion | SPC | 53 min |
| Mar 2, 6:15 AM EST | Dense Fog Advisory | PHI | 4 hr |
| Mar 13, 2:56 PM EDT | Wind Advisory | PHI | 32 hr |
| Mar 25, 10:44 AM EDT | Special Weather Statement | PHI | 31 min |
| 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, 5:53 PM EDT | Severe Thunderstorm Warning | PHI | 67 min |
| Apr 1, 6:04 PM EDT | Severe Thunderstorm Warning | PHI | 56 min |
| Apr 1, 6:37 PM EDT | Severe Thunderstorm Warning | PHI | 53 min |
| Apr 2, 11:40 AM EDT | Frost Advisory | PHI | 21 hr |
| Apr 2, 11:40 AM EDT | Freeze Warning | PHI | 21 hr |
| Apr 7, 8:09 PM EDT | Freeze Watch | PHI | 7 hr |
| Apr 8, 3:31 AM EDT | Freeze Warning | PHI | 29 hr |
| Apr 9, 9:10 AM EDT | Freeze Warning | PHI | 24 hr |
| Apr 11, 3:46 PM EDT | Fire Weather Watch | PHI | 18 hr |
| Apr 12, 9:24 AM EDT | Red Flag Warning | PHI | 11 hr |
| Apr 16, 3:47 AM EDT | Dense Fog Advisory | PHI | 7 hr |
| Apr 22, 2:47 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Apr 22, 3:04 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 22, 5:18 PM EDT | Special Weather Statement | PHI | 27 min |
| Apr 22, 5:43 PM EDT | Special Weather Statement | PHI | 32 min |
| Apr 22, 6:11 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Apr 22, 6:32 PM EDT | Severe Thunderstorm Warning | PHI | 28 min |
| Apr 24, 2:18 PM EDT | Frost Advisory | PHI | 18 hr |
| Apr 29, 3:46 PM EDT | Flood Watch | PHI | 30 hr |
| Apr 30, 8:34 PM EDT | Areal Flood Advisory | PHI | 100 min |
| Apr 30, 10:14 PM EDT | Areal Flood Warning | PHI | 3 hr |
| May 1, 2:17 AM EDT | Areal Flood Warning | PHI | 3 hr |
| May 1, 2:44 AM EDT | Areal Flood Warning | PHI | 2 hr |
| May 1, 11:00 PM EDT | Special Weather Statement | PHI | 45 min |
| May 17, 11:20 AM EDT | Frost Advisory | PHI | 21 hr |
| Jun 2, 3:14 PM EDT | Special Weather Statement | PHI | 31 min |
| Jun 2, 5:32 PM EDT | Special Weather Statement | PHI | 28 min |
| Jun 2, 7:33 PM EDT | Severe Thunderstorm Warning | PHI | 42 min |
| Jun 2, 7:50 PM EDT | Severe Thunderstorm Warning | PHI | 40 min |
| 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, 3:45 PM EDT | Special Weather Statement | PHI | 30 min |
| Jun 6, 3:56 PM EDT | Severe Thunderstorm Warning | PHI | 35 min |
| Jun 12, 12:30 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Jun 12, 4:15 PM EDT | Areal Flood Advisory | PHI | 4 hr |
| Jun 14, 2:07 PM EDT | Severe Thunderstorm Warning | PHI | 38 min |
| Jun 14, 2:44 PM EDT | Special Weather Statement | PHI | 31 min |
| Jun 16, 10:50 AM EDT | Mesoscale Discussion | SPC | 55 min |
| Jun 16, 11:06 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 16, 11:20 AM EDT | Severe Thunderstorm Warning | PHI | 40 min |
| Jun 16, 11:33 AM EDT | Tornado Warning | PHI | 27 min |
| Jun 16, 11:58 AM EDT | Severe Thunderstorm Warning | PHI | 47 min |
| Jun 16, 12:46 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Jun 23, 3:50 PM EDT | Areal Flood Advisory | PHI | 30 min |
| Jun 23, 4:19 PM EDT | Flash Flood Warning | PHI | 4 hr |
| Jun 23, 4:32 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Jun 24, 12:33 PM EDT | Areal Flood Advisory | PHI | 14 min |
| Jun 24, 12:47 PM EDT | Flash Flood Warning | PHI | 3 hr |
| Jun 25, 3:18 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Jun 25, 3:47 PM EDT | Areal Flood Advisory | PHI | 15 min |
| Jun 25, 4:01 PM EDT | Flash Flood Warning | PHI | 4 hr |
| Jun 25, 4:05 PM EDT | Severe Thunderstorm Warning | PHI | 25 min |
| Jun 25, 5:27 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Jun 26, 3:33 AM EDT | Flood Watch | PHI | 23 hr |
| Jun 26, 9:37 AM EDT | Mesoscale Discussion | SPC | 83 min |
| Jun 26, 12:36 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 26, 1:11 PM EDT | Severe Thunderstorm Watch | SPC | 11 hr |
| Jun 26, 3:22 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 26, 6:50 PM EDT | Special Weather Statement | PHI | 25 min |
| Jun 26, 7:26 PM EDT | Special Weather Statement | PHI | 34 min |
| Jun 26, 7:44 PM EDT | Special Weather Statement | PHI | 31 min |
| Jun 26, 8:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 26, 9:47 PM EDT | Severe Thunderstorm Warning | PHI | 43 min |
| Jun 26, 10:33 PM EDT | Severe Thunderstorm Warning | PHI | 42 min |
| Jun 26, 10:50 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jun 26, 10:54 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Jun 26, 11:27 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Jun 26, 11:35 PM EDT | Flash Flood Warning | PHI | 6 hr |
| Jun 27, 12:51 AM EDT | Flash Flood Warning | PHI | 4 hr |
| Jun 27, 1:23 AM EDT | Special Weather Statement | PHI | 37 min |
| Jun 27, 3:01 AM EDT | Special Weather Statement | PHI | 29 min |
| Jun 27, 3:02 AM EDT | Flood Watch | PHI | 46 min |
| Jun 27, 3:48 AM EDT | Flood Watch | PHI | 17 hr |
| Jun 27, 6:14 AM EDT | Areal Flood Warning | PHI | 3 hr |
| Jun 27, 3:57 PM EDT | Severe Thunderstorm Warning | PHI | 48 min |
| Jun 27, 4:30 PM EDT | Severe Thunderstorm Warning | PHI | 32 min |
| Jun 27, 4:39 PM EDT | Severe Thunderstorm Warning | PHI | 51 min |
| Jun 27, 4:58 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Jun 27, 5:44 PM EDT | Flash Flood Warning | PHI | 5 hr |
| Jul 2, 3:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jul 2, 4:31 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 2, 6:33 PM EDT | Tornado Warning | PHI | 27 min |
| Jul 2, 6:57 PM EDT | Tornado Warning | PHI | 9 min |
| Jul 2, 7:42 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jul 2, 10:52 PM EDT | Areal Flood Advisory | PHI | 83 min |
| Jul 3, 2:55 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 3, 4:49 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 7, 2:53 PM EDT | Special Weather Statement | PHI | 37 min |
| Jul 7, 3:21 PM EDT | Severe Thunderstorm Warning | PHI | 22 min |
| Jul 8, 3:17 PM EDT | Flood Watch | PHI | 31 hr |
| Jul 8, 3:52 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Jul 8, 5:00 PM EDT | Areal Flood Advisory | PHI | 25 min |
| Jul 8, 5:15 PM EDT | Flash Flood Warning | PHI | 4 hr |
| Jul 8, 6:02 PM EDT | Special Weather Statement | PHI | 28 min |
| Jul 8, 6:33 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Jul 9, 10:28 AM EDT | Mesoscale Discussion | SPC | 92 min |
| Jul 9, 11:06 AM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 9, 11:33 AM EDT | Flash Flood Warning | PHI | 8 hr |
| Jul 9, 11:49 AM EDT | Special Weather Statement | PHI | 41 min |
| Jul 9, 11:54 AM EDT | Areal Flood Advisory | PHI | 33 min |
| Jul 9, 12:27 PM EDT | Flash Flood Warning | PHI | 8 hr |
| Jul 9, 1:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jul 9, 3:51 PM EDT | Flash Flood Warning | PHI | 6 hr |
| Jul 9, 4:03 PM EDT | Severe Thunderstorm Warning | PHI | 27 min |
| Jul 9, 4:31 PM EDT | Flash Flood Warning | PHI | 4 hr |
| Jul 9, 5:12 PM EDT | Flash Flood Warning | PHI | 5 hr |
| Jul 9, 5:31 PM EDT | Flash Flood Warning | PHI | 4 hr |
| Jul 9, 5:59 PM EDT | Flash Flood Warning | PHI | 4 hr |
| Jul 9, 8:32 PM EDT | Areal Flood Warning | PHI | 4 hr |
| Jul 9, 9:50 PM EDT | River Flood Warning | PHI | 22 hr |
| Jul 9, 9:50 PM EDT | River Flood Warning | PHI | 12 hr |
| Jul 9, 9:50 PM EDT | River Flood Warning | PHI | 12 hr |
| Jul 10, 7:48 PM EDT | Special Weather Statement | PHI | 27 min |
| Jul 14, 2:02 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 14, 3:43 PM EDT | Special Weather Statement | PHI | 32 min |
| Jul 15, 3:44 AM EDT | Flood Watch | PHI | 38 hr |
| Jul 15, 1:46 PM EDT | Special Weather Statement | PHI | 29 min |
| Jul 15, 3:50 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 16, 4:05 AM EDT | Flash Flood Warning | PHI | 6 hr |
| Jul 16, 9:40 AM EDT | Flash Flood Warning | PHI | 3 hr |
| Jul 16, 9:53 AM EDT | Tornado Warning | PHI | 37 min |
| Jul 19, 4:49 AM EDT | Special Weather Statement | PHI | 41 min |
| Jul 19, 5:12 AM EDT | Areal Flood Advisory | PHI | 3 hr |
| Jul 19, 4:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jul 20, 10:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 20, 10:28 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 21, 2:32 AM EDT | Severe Thunderstorm Warning | PHI | 43 min |
| Jul 21, 2:42 AM EDT | Severe Thunderstorm Warning | PHI | 48 min |
| Jul 21, 3:13 AM EDT | Severe Thunderstorm Warning | PHI | 47 min |
| Jul 25, 10:58 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 25, 11:58 AM EDT | Special Weather Statement | PHI | 32 min |
| Jul 25, 12:13 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 25, 12:16 PM EDT | Severe Thunderstorm Warning | PHI | 44 min |
| Jul 25, 12:47 PM EDT | Areal Flood Advisory | PHI | 33 min |
| Jul 25, 1:03 PM EDT | Severe Thunderstorm Warning | PHI | 42 min |
| Jul 25, 1:20 PM EDT | Flash Flood Warning | PHI | 5 hr |
| Jul 25, 2:14 PM EDT | Severe Thunderstorm Warning | PHI | 46 min |
| Jul 25, 2:21 PM EDT | Areal Flood Advisory | PHI | 2 hr |
| Jul 25, 2:36 PM EDT | Severe Thunderstorm Warning | PHI | 39 min |
| Jul 25, 2:51 PM EDT | Flash Flood Warning | PHI | 3 hr |
| Jul 25, 3:06 PM EDT | Areal Flood Advisory | PHI | 95 min |
| Jul 25, 3:16 PM EDT | Severe Thunderstorm Warning | PHI | 44 min |
| Jul 25, 3:21 PM EDT | Severe Thunderstorm Warning | PHI | 39 min |
| Jul 25, 3:34 PM EDT | Flash Flood Warning | PHI | 3 hr |
| Jul 25, 3:58 PM EDT | Severe Thunderstorm Warning | PHI | 30 min |
| Jul 25, 4:04 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Jul 26, 3:32 AM EDT | Excessive Heat Watch | PHI | 23 hr |
| Jul 26, 3:32 AM EDT | Heat Advisory | PHI | 4 days |
| Jul 27, 3:01 AM EDT | Excessive Heat Warning | PHI | 43 hr |
| Jul 27, 11:40 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 27, 3:07 PM EDT | Heat Advisory | PHI | 53 hr |
| Jul 27, 3:18 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 27, 4:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jul 28, 8:24 PM EDT | Special Weather Statement | PHI | 51 min |
| Jul 28, 9:02 PM EDT | Special Weather Statement | PHI | 43 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, 4:45 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 29, 6:46 PM EDT | Severe Thunderstorm Warning | PHI | 44 min |
| Aug 4, 6:13 PM EDT | Mesoscale Discussion | SPC | 2 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, 6:21 PM EDT | Severe Thunderstorm Warning | PHI | 69 min |
| Aug 7, 6:29 PM EDT | Areal Flood Advisory | PHI | 63 min |
| Aug 7, 6:35 PM EDT | Tornado Warning | PHI | 25 min |
| Aug 7, 6:53 PM EDT | Severe Thunderstorm Warning | PHI | 52 min |
| Aug 7, 6:57 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Aug 7, 7:00 PM EDT | Areal Flood Advisory | PHI | 66 min |
| Aug 10, 2:00 PM EDT | Areal Flood Advisory | PHI | 94 min |
| Aug 12, 3:49 PM EDT | Severe Thunderstorm Warning | PHI | 41 min |
| Aug 12, 5:31 PM EDT | Severe Thunderstorm Warning | PHI | 44 min |
| Aug 12, 5:38 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 12, 6:42 PM EDT | Special Weather Statement | PHI | 33 min |
| Aug 12, 6:47 PM EDT | Severe Thunderstorm Warning | PHI | 28 min |
| Aug 12, 9:02 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Aug 13, 12:24 AM EDT | Severe Thunderstorm Warning | PHI | 51 min |
| Aug 13, 1:10 AM EDT | Severe Thunderstorm Warning | PHI | 50 min |
| Aug 14, 3:40 PM EDT | Flood Watch | PHI | 13 hr |
| Aug 15, 2:08 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 15, 4:57 PM EDT | Severe Thunderstorm Warning | PHI | 30 min |
| Aug 15, 7:01 PM EDT | Areal Flood Advisory | PHI | 111 min |
| Sep 4, 2:41 PM EDT | Heat Advisory | PHI | 3 days |
| Sep 7, 11:58 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 7, 1:14 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 7, 4:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Sep 7, 5:44 PM EDT | Severe Thunderstorm Warning | PHI | 46 min |
| Sep 7, 6:06 PM EDT | Special Weather Statement | PHI | 24 min |
| Sep 7, 6:13 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Sep 7, 6:18 PM EDT | Severe Thunderstorm Warning | PHI | 42 min |
| Sep 7, 7:00 PM EDT | Special Weather Statement | PHI | 30 min |
| Sep 7, 7:51 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Sep 8, 2:46 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Sep 8, 3:11 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 8, 4:52 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Sep 8, 5:14 PM EDT | Severe Thunderstorm Warning | PHI | 46 min |
| Sep 8, 5:16 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Sep 8, 5:21 PM EDT | Flash Flood Warning | PHI | 4 hr |
| Sep 8, 5:29 PM EDT | Special Weather Statement | PHI | 31 min |
| Sep 8, 6:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Sep 8, 10:58 PM EDT | Severe Thunderstorm Warning | PHI | 47 min |
| Sep 9, 2:08 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 9, 4:23 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Sep 9, 6:06 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Sep 9, 8:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 10, 5:48 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Sep 10, 6:03 PM EDT | Flash Flood Warning | PHI | 3 hr |
| Sep 10, 7:11 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Sep 10, 9:03 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Sep 12, 2:39 PM EDT | Flood Watch | PHI | 16 hr |
| Oct 20, 8:54 PM EDT | Areal Flood Advisory | PHI | 48 min |
| Oct 23, 3:28 PM EDT | Frost Advisory | PHI | 18 hr |
| Oct 31, 3:10 AM EDT | Freeze Watch | PHI | 24 hr |
| Nov 1, 3:16 AM EDT | Freeze Warning | PHI | 31 hr |
| Nov 21, 9:33 PM EST | Areal Flood Advisory | PHI | 6 hr |
| Nov 22, 3:31 AM EST | Areal Flood Advisory | PHI | 3 hr |
| Nov 26, 8:35 PM EST | Areal Flood Advisory | PHI | 3 hr |
| Nov 28, 6:40 AM EST | Special Weather Statement | PHI | 50 min |
| Nov 28, 7:39 AM EST | Special Weather Statement | PHI | 21 min |
| Nov 28, 8:12 AM EST | Special Weather Statement | PHI | 33 min |
| Dec 2, 5:05 AM EST | Dense Fog Advisory | PHI | 5 hr |
| Dec 2, 8:05 PM EST | Dense Fog Advisory | PHI | 6 hr |
| Dec 8, 3:26 PM EST | Flood Watch | PHI | 66 hr |
| Dec 9, 3:06 AM EST | Dense Fog Advisory | PHI | 8 hr |
| Dec 10, 6:51 PM EST | Areal Flood Advisory | PHI | 4 hr |
| Dec 10, 7:27 PM EST | Areal Flood Advisory | PHI | 8 hr |
| Dec 10, 11:36 PM EST | Areal Flood Warning | PHI | 9 hr |
| Dec 10, 11:42 PM EST | Areal Flood Warning | PHI | 4 hr |
| Dec 11, 1:19 AM EST | Areal Flood Warning | PHI | 8 hr |
| Dec 15, 3:36 PM EST | Flood Watch | PHI | 69 hr |
| Dec 18, 1:00 AM EST | Areal Flood Advisory | PHI | 8 hr |
| Dec 18, 1:01 AM EST | Areal Flood Advisory | PHI | 22 min |
| Dec 18, 1:23 AM EST | Areal Flood Warning | PHI | 15 hr |
| Dec 18, 2:30 AM EST | Areal Flood Warning | PHI | 16 hr |
| Dec 18, 3:06 AM EST | Areal Flood Advisory | PHI | 64 min |
| Dec 18, 3:11 AM EST | Areal Flood Advisory | PHI | 72 min |
| Dec 18, 4:10 AM EST | Areal Flood Warning | PHI | 14 hr |
| Dec 18, 4:23 AM EST | Areal Flood Warning | PHI | 10 hr |
| Dec 18, 4:27 AM EST | River Flood Warning | PHI | 13 hr |
| Dec 18, 4:35 AM EST | River Flood Warning | PHI | 20 hr |
| Dec 18, 4:41 AM EST | Areal Flood Warning | PHI | 14 hr |
| Dec 18, 4:49 AM EST | River Flood Warning | PHI | 30 hr |
| Dec 18, 5:00 AM EST | River Flood Warning | PHI | 30 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 27, 9:12 PM EST | Areal Flood Warning | PHI | 8 hr |
| Dec 27, 11:14 PM EST | Areal Flood Warning | PHI | 10 hr |
| Dec 27, 11:29 PM EST | Areal Flood Warning | PHI | 8 hr |
| Dec 28, 12:12 AM EST | River Flood Warning | PHI | 12 hr |
| Dec 28, 2:33 AM EST | Coastal Flood Advisory | PHI | 39 hr |
| Dec 28, 2:34 AM EST | Areal Flood Warning | PHI | 9 hr |
| Dec 28, 2:42 AM EST | Areal Flood Warning | PHI | 3 hr |
| Dec 28, 3:07 AM EST | River Flood Warning | PHI | 14 hr |
| Dec 28, 7:30 AM EST | River Flood Warning | PHI | 6 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 | 41 |
| Tornado Warning | 5 |
| Severe Thunderstorm Watch | 14 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 41 |
| Special Weather Statement | 32 |
| Flooding | |
| Areal Flood Warning | 19 |
| Flash Flood Warning | 21 |
| River Flood Warning | 10 |
| Flood Watch | 11 |
| Areal Flood Advisory | 40 |
| Heat | |
| Excessive Heat Warning | 1 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 4 |
| Freeze Watch | 2 |
| Frost Advisory | 4 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 7 |
| Coast and beach | |
| Coastal Flood Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20222024
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.