Alert archive / Pennsylvania / Montgomery County
Weather alerts in Montgomery County, Pennsylvania, 2021
266 weather alerts in 2021, 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 2021. Tap one for its archive.
- Alerts
- 266
- Warnings
- 99
- Watches
- 39
- Advisories
- 54
- Busiest month
- July71 alerts
- Busiest day
- September 1, 202113 alerts
Over time
By month
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 2, 2:55 PM EST | Winter Weather Advisory | PHI | 37 hr |
| Jan 20, 9:52 AM EST | Special Weather Statement | PHI | 53 min |
| Jan 20, 10:42 AM EST | Special Weather Statement | PHI | 63 min |
| Jan 25, 3:08 PM EST | Winter Weather Advisory | PHI | 34 hr |
| Jan 29, 3:14 PM EST | Winter Storm Watch | PHI | 25 hr |
| Jan 30, 3:44 PM EST | Winter Storm Warning | PHI | 72 hr |
| Feb 1, 1:43 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 5, 3:09 PM EST | Winter Storm Watch | PHI | 12 hr |
| Feb 6, 3:23 AM EST | Winter Storm Warning | PHI | 36 hr |
| Feb 6, 3:23 AM EST | Winter Weather Advisory | PHI | 36 hr |
| Feb 10, 3:47 AM EST | Winter Weather Advisory | PHI | 32 hr |
| Feb 12, 3:21 PM EST | Winter Weather Advisory | PHI | 43 hr |
| Feb 14, 3:15 PM EST | Ice Storm Warning | PHI | 41 hr |
| Feb 14, 3:15 PM EST | Winter Weather Advisory | PHI | 39 hr |
| Feb 16, 3:14 PM EST | Winter Storm Watch | PHI | 24 hr |
| Feb 17, 3:43 PM EST | Winter Storm Warning | PHI | 24 hr |
| Feb 17, 3:43 PM EST | Winter Weather Advisory | PHI | 47 hr |
| Feb 18, 5:46 AM EST | Special Weather Statement | PHI | 89 min |
| Feb 18, 7:24 AM EST | Special Weather Statement | PHI | 51 min |
| Feb 18, 8:24 AM EST | Special Weather Statement | PHI | 66 min |
| Feb 18, 9:47 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 18, 10:43 AM EST | Special Weather Statement | PHI | 62 min |
| Feb 18, 12:06 PM EST | Special Weather Statement | PHI | 54 min |
| Feb 21, 2:47 PM EST | Winter Weather Advisory | PHI | 26 hr |
| Feb 22, 7:48 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 28, 3:14 PM EST | Wind Advisory | PHI | 42 hr |
| Mar 13, 2:44 PM EST | Wind Advisory | PHI | 28 hr |
| Mar 13, 2:56 PM EST | Fire Weather Watch | PHI | 12 hr |
| Mar 14, 4:22 AM EDT | Red Flag Warning | PHI | 37 hr |
| Mar 24, 1:51 PM EDT | Areal Flood Advisory | PHI | 5 hr |
| Mar 24, 2:45 PM EDT | Areal Flood Advisory | PHI | 5 hr |
| Mar 24, 6:26 PM EDT | Areal Flood Warning | PHI | 10 hr |
| Mar 24, 7:09 PM EDT | Dense Fog Advisory | PHI | 14 hr |
| Mar 25, 11:00 AM EDT | Wind Advisory | PHI | 32 hr |
| Mar 28, 5:05 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Mar 28, 6:12 PM EDT | Severe Thunderstorm Warning | PHI | 48 min |
| Mar 28, 6:15 PM EDT | Special Weather Statement | PHI | 30 min |
| Mar 28, 6:43 PM EDT | Severe Thunderstorm Warning | PHI | 47 min |
| Mar 28, 6:47 PM EDT | Severe Thunderstorm Warning | PHI | 43 min |
| Mar 28, 7:05 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Apr 10, 3:22 AM EDT | Areal Flood Advisory | PHI | 2 hr |
| Apr 20, 8:48 PM EDT | Freeze Watch | PHI | 7 hr |
| Apr 21, 3:26 AM EDT | Freeze Warning | PHI | 30 hr |
| Apr 21, 12:17 PM EDT | Severe Thunderstorm Warning | PHI | 43 min |
| Apr 21, 12:28 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 21, 12:55 PM EDT | Severe Thunderstorm Warning | PHI | 27 min |
| Apr 21, 1:10 PM EDT | Severe Thunderstorm Warning | PHI | 50 min |
| Apr 22, 8:58 AM EDT | Freeze Watch | PHI | 6 hr |
| Apr 22, 2:31 PM EDT | Freeze Warning | PHI | 17 hr |
| Apr 29, 3:32 AM EDT | High Wind Watch | PHI | 16 hr |
| Apr 29, 7:23 PM EDT | High Wind Warning | PHI | 26 hr |
| Apr 30, 8:56 PM EDT | Wind Advisory | PHI | 6 hr |
| May 26, 2:48 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 26, 4:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| May 26, 4:46 PM EDT | Severe Thunderstorm Warning | PHI | 44 min |
| May 26, 4:52 PM EDT | Severe Thunderstorm Warning | PHI | 38 min |
| May 26, 5:27 PM EDT | Severe Thunderstorm Warning | PHI | 48 min |
| May 26, 5:53 PM EDT | Severe Thunderstorm Warning | PHI | 67 min |
| May 26, 6:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jun 3, 9:37 AM EDT | Flash Flood Watch | PHI | 12 hr |
| Jun 3, 1:46 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jun 3, 2:48 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 3, 4:47 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jun 3, 5:20 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Jun 3, 6:19 PM EDT | Flash Flood Warning | PHI | 115 min |
| Jun 3, 7:09 PM EDT | Flash Flood Warning | PHI | 2 hr |
| Jun 3, 7:13 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Jun 4, 2:21 PM EDT | Severe Thunderstorm Warning | PHI | 21 min |
| Jun 4, 2:24 PM EDT | Severe Thunderstorm Warning | PHI | 51 min |
| Jun 4, 2:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 4, 3:09 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 4, 3:14 PM EDT | Severe Thunderstorm Warning | PHI | 46 min |
| Jun 4, 3:16 PM EDT | Areal Flood Advisory | PHI | 98 min |
| Jun 4, 4:12 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 5, 3:35 PM EDT | Heat Advisory | PHI | 4 days |
| Jun 8, 1:18 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Jun 8, 1:35 PM EDT | Flash Flood Warning | PHI | 5 hr |
| Jun 8, 2:43 PM EDT | Special Weather Statement | PHI | 32 min |
| Jun 8, 3:21 PM EDT | Flash Flood Warning | PHI | 3 hr |
| Jun 9, 4:54 PM EDT | Flash Flood Warning | PHI | 112 min |
| Jun 14, 1:40 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 14, 2:06 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 14, 6:18 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jun 14, 7:55 PM EDT | Severe Thunderstorm Warning | PHI | 50 min |
| Jun 14, 8:34 PM EDT | Severe Thunderstorm Warning | PHI | 41 min |
| Jun 14, 9:12 PM EDT | Areal Flood Advisory | PHI | 74 min |
| Jun 21, 4:35 AM EDT | Heat Advisory | PHI | 15 hr |
| Jun 21, 1:51 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jun 21, 4:33 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 21, 6:15 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Jun 21, 7:12 PM EDT | Severe Thunderstorm Warning | PHI | 48 min |
| Jun 27, 3:19 AM EDT | Heat Advisory | PHI | 4 days |
| Jun 28, 3:13 PM EDT | Excessive Heat Warning | PHI | 53 hr |
| Jun 28, 3:13 PM EDT | Heat Advisory | PHI | 53 hr |
| Jun 30, 3:19 PM EDT | Flash Flood Watch | PHI | 26 hr |
| Jun 30, 8:16 PM EDT | Special Weather Statement | PHI | 44 min |
| Jul 1, 11:45 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 1, 12:46 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 1, 2:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 1, 2:51 PM EDT | Special Weather Statement | PHI | 39 min |
| Jul 1, 3:13 PM EDT | Severe Thunderstorm Warning | PHI | 47 min |
| Jul 1, 3:23 PM EDT | Areal Flood Advisory | PHI | 77 min |
| Jul 1, 3:48 PM EDT | Areal Flood Advisory | PHI | 112 min |
| Jul 1, 3:50 PM EDT | Severe Thunderstorm Warning | PHI | 40 min |
| Jul 1, 4:27 PM EDT | Severe Thunderstorm Warning | PHI | 48 min |
| Jul 2, 3:13 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jul 2, 4:54 PM EDT | Flash Flood Warning | PHI | 5 hr |
| Jul 4, 1:25 AM EDT | Dense Fog Advisory | PHI | 7 hr |
| Jul 5, 3:21 AM EDT | Heat Advisory | PHI | 65 hr |
| Jul 6, 12:33 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 6, 1:32 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 6, 4:23 PM EDT | Severe Thunderstorm Warning | PHI | 52 min |
| Jul 6, 4:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 6, 5:11 PM EDT | Severe Thunderstorm Warning | PHI | 49 min |
| Jul 6, 5:34 PM EDT | Severe Thunderstorm Warning | PHI | 41 min |
| Jul 6, 6:13 PM EDT | Severe Thunderstorm Warning | PHI | 31 min |
| Jul 6, 10:21 PM EDT | Severe Thunderstorm Warning | PHI | 39 min |
| Jul 7, 2:41 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 7, 3:32 PM EDT | Flash Flood Watch | PHI | 42 hr |
| Jul 7, 4:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jul 8, 1:44 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 8, 2:09 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 8, 4:06 PM EDT | Severe Thunderstorm Warning | PHI | 39 min |
| Jul 8, 4:36 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jul 8, 4:45 PM EDT | Severe Thunderstorm Warning | PHI | 45 min |
| Jul 8, 5:21 PM EDT | Severe Thunderstorm Warning | PHI | 39 min |
| Jul 8, 6:06 PM EDT | Severe Thunderstorm Warning | PHI | 39 min |
| Jul 9, 4:35 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 11, 3:45 PM EDT | Flash Flood Watch | PHI | 36 hr |
| Jul 11, 6:18 PM EDT | Heat Advisory | PHI | 50 hr |
| Jul 12, 1:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jul 12, 1:59 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Jul 12, 3:34 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 12, 4:16 PM EDT | Areal Flood Advisory | PHI | 114 min |
| Jul 12, 5:08 PM EDT | Severe Thunderstorm Warning | PHI | 67 min |
| Jul 12, 5:26 PM EDT | Areal Flood Advisory | PHI | 2 hr |
| Jul 12, 7:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 13, 1:34 AM EDT | Areal Flood Advisory | PHI | 117 min |
| Jul 15, 2:33 PM EDT | Heat Advisory | PHI | 52 hr |
| Jul 16, 3:17 PM EDT | Flash Flood Watch | PHI | 35 hr |
| Jul 16, 5:51 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jul 16, 8:14 PM EDT | Special Weather Statement | PHI | 31 min |
| Jul 17, 12:00 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 17, 1:13 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 17, 3:02 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jul 17, 4:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 17, 5:13 PM EDT | Areal Flood Advisory | PHI | 4 hr |
| Jul 17, 6:51 PM EDT | Severe Thunderstorm Warning | PHI | 39 min |
| Jul 17, 6:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 17, 8:00 PM EDT | Severe Thunderstorm Warning | PHI | 45 min |
| Jul 17, 8:44 PM EDT | Areal Flood Advisory | PHI | 82 min |
| Jul 17, 9:15 PM EDT | Areal Flood Advisory | PHI | 2 hr |
| Jul 17, 9:27 PM EDT | Severe Thunderstorm Warning | PHI | 48 min |
| Jul 17, 9:36 PM EDT | Flash Flood Warning | PHI | 2 hr |
| Jul 17, 9:48 PM EDT | Severe Thunderstorm Warning | PHI | 42 min |
| Jul 17, 10:02 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Jul 21, 10:32 AM EDT | Mesoscale Discussion | SPC | 58 min |
| Jul 21, 11:56 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 21, 2:14 PM EDT | Severe Thunderstorm Warning | PHI | 19 min |
| Jul 21, 2:39 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 2:41 PM EDT | Special Weather Statement | PHI | 49 min |
| Jul 21, 2:48 PM EDT | Severe Thunderstorm Warning | PHI | 42 min |
| Jul 21, 3:16 PM EDT | Severe Thunderstorm Warning | PHI | 44 min |
| Jul 29, 2:23 PM EDT | Tornado Watch | SPC | 8 hr |
| Jul 29, 4:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 29, 6:45 PM EDT | Severe Thunderstorm Warning | PHI | 45 min |
| Aug 1, 8:29 PM EDT | Special Weather Statement | PHI | 46 min |
| Aug 9, 3:43 PM EDT | Excessive Heat Watch | PHI | 12 hr |
| Aug 9, 6:29 PM EDT | Areal Flood Advisory | PHI | 70 min |
| Aug 9, 6:49 PM EDT | Special Weather Statement | PHI | 26 min |
| Aug 10, 3:33 AM EDT | Excessive Heat Warning | PHI | 4 days |
| Aug 10, 2:30 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 10, 4:01 PM EDT | Severe Thunderstorm Warning | PHI | 44 min |
| Aug 10, 4:33 PM EDT | Severe Thunderstorm Warning | PHI | 42 min |
| Aug 10, 5:09 PM EDT | Severe Thunderstorm Warning | PHI | 51 min |
| Aug 10, 5:11 PM EDT | Special Weather Statement | PHI | 34 min |
| Aug 10, 7:10 PM EDT | Severe Thunderstorm Warning | PHI | 65 min |
| Aug 10, 8:18 PM EDT | Severe Thunderstorm Warning | PHI | 42 min |
| Aug 10, 8:36 PM EDT | Severe Thunderstorm Warning | PHI | 39 min |
| Aug 10, 8:43 PM EDT | Areal Flood Advisory | PHI | 2 hr |
| Aug 11, 2:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Aug 11, 2:56 PM EDT | Excessive Heat Watch | PHI | 12 hr |
| Aug 11, 3:02 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 11, 6:16 PM EDT | Severe Thunderstorm Warning | PHI | 44 min |
| Aug 11, 6:26 PM EDT | Severe Thunderstorm Warning | PHI | 49 min |
| Aug 11, 6:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Aug 11, 6:48 PM EDT | Severe Thunderstorm Warning | PHI | 42 min |
| Aug 11, 7:04 PM EDT | Areal Flood Advisory | PHI | 2 hr |
| Aug 11, 7:11 PM EDT | Severe Thunderstorm Warning | PHI | 49 min |
| Aug 12, 10:08 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Aug 18, 10:50 PM EDT | Flash Flood Warning | PHI | 4 hr |
| Aug 18, 11:19 PM EDT | Special Weather Statement | PHI | 41 min |
| Aug 19, 12:04 AM EDT | Special Weather Statement | PHI | 71 min |
| Aug 19, 12:26 AM EDT | Tornado Warning | PHI | 34 min |
| Aug 19, 12:31 AM EDT | Flash Flood Warning | PHI | 4 hr |
| Aug 19, 12:44 AM EDT | Mesoscale Discussion | SPC | 61 min |
| Aug 19, 12:47 AM EDT | Tornado Warning | PHI | 28 min |
| Aug 19, 1:30 AM EDT | Flash Flood Warning | PHI | 4 hr |
| Aug 19, 8:50 AM EDT | Areal Flood Warning | PHI | 3 hr |
| Aug 21, 3:27 AM EDT | Flood Watch | PHI | 53 hr |
| Aug 22, 10:53 PM EDT | Flash Flood Warning | PHI | 4 hr |
| Aug 23, 4:41 PM EDT | Special Weather Statement | PHI | 34 min |
| Aug 25, 2:13 PM EDT | Heat Advisory | PHI | 53 hr |
| Aug 26, 3:30 PM EDT | Flash Flood Watch | PHI | 48 hr |
| Aug 27, 5:29 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Aug 28, 3:06 AM EDT | Areal Flood Advisory | PHI | 2 hr |
| Aug 28, 8:07 AM EDT | Areal Flood Advisory | PHI | 3 hr |
| Aug 28, 9:06 AM EDT | Flash Flood Warning | PHI | 3 hr |
| Aug 28, 11:57 AM EDT | Flash Flood Warning | PHI | 3 hr |
| Aug 30, 5:00 AM EDT | Flash Flood Watch | PHI | 71 hr |
| Sep 1, 12:40 PM EDT | Tornado Watch | SPC | 9 hr |
| Sep 1, 2:53 PM EDT | Flash Flood Warning | PHI | 9 hr |
| Sep 1, 3:09 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | 36 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | 43 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | 41 hr |
| Sep 1, 4:12 PM EDT | Flash Flood Warning | PHI | 7 hr |
| Sep 1, 4:20 PM EDT | River Flood Warning | PHI | 22 hr |
| Sep 1, 4:42 PM EDT | Flash Flood Warning | PHI | 6 hr |
| Sep 1, 5:13 PM EDT | Severe Thunderstorm Warning | PHI | 47 min |
| Sep 1, 5:15 PM EDT | Tornado Warning | PHI | 30 min |
| Sep 1, 5:26 PM EDT | Flash Flood Warning | PHI | 9 hr |
| Sep 1, 5:34 PM EDT | Tornado Warning | PHI | 26 min |
| Sep 1, 10:42 PM EDT | Areal Flood Warning | PHI | 12 hr |
| Sep 1, 11:38 PM EDT | Areal Flood Warning | PHI | 10 hr |
| Sep 2, 2:23 AM EDT | Areal Flood Warning | PHI | 9 hr |
| Sep 2, 6:05 AM EDT | Coastal Flood Warning | PHI | 6 hr |
| Sep 7, 2:33 PM EDT | Flash Flood Watch | PHI | 37 hr |
| Sep 8, 7:54 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Sep 8, 9:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Sep 8, 10:42 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 8, 10:47 PM EDT | Severe Thunderstorm Warning | PHI | 58 min |
| Sep 8, 11:35 PM EDT | Special Weather Statement | PHI | 40 min |
| Sep 9, 12:08 AM EDT | Special Weather Statement | PHI | 37 min |
| Sep 15, 7:36 PM EDT | Special Weather Statement | PHI | 24 min |
| Sep 22, 3:24 AM EDT | Flash Flood Watch | PHI | 41 hr |
| Sep 23, 10:30 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 23, 11:33 AM EDT | Areal Flood Advisory | PHI | 3 hr |
| Sep 23, 11:40 AM EDT | Areal Flood Advisory | PHI | 3 hr |
| Sep 23, 12:12 PM EDT | Severe Thunderstorm Warning | PHI | 48 min |
| Sep 23, 12:28 PM EDT | Flash Flood Warning | PHI | 4 hr |
| Sep 23, 12:56 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Sep 23, 1:13 PM EDT | Severe Thunderstorm Warning | PHI | 47 min |
| Sep 23, 1:42 PM EDT | Flash Flood Warning | PHI | 4 hr |
| Sep 23, 4:26 PM EDT | Areal Flood Warning | PHI | 80 min |
| Sep 23, 7:18 PM EDT | Areal Flood Warning | PHI | 36 min |
| Sep 28, 9:23 AM EDT | Special Weather Statement | PHI | 37 min |
| Sep 28, 9:47 AM EDT | Special Weather Statement | PHI | 28 min |
| Oct 3, 3:33 AM EDT | Dense Fog Advisory | PHI | 6 hr |
| Oct 4, 4:44 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 5, 1:24 AM EDT | Special Weather Statement | PHI | 36 min |
| Oct 5, 2:10 AM EDT | Areal Flood Advisory | PHI | 4 hr |
| Oct 14, 3:16 AM EDT | Dense Fog Advisory | PHI | 3 hr |
| Oct 16, 1:50 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Oct 16, 4:18 PM EDT | Special Weather Statement | PHI | 57 min |
| Oct 24, 3:09 PM EDT | Flash Flood Watch | PHI | 48 hr |
| Oct 25, 6:41 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 25, 7:43 PM EDT | Special Weather Statement | PHI | 47 min |
| Oct 26, 12:31 AM EDT | Areal Flood Warning | PHI | 5 hr |
| Oct 29, 7:38 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Nov 1, 2:25 PM EDT | Freeze Watch | PHI | 13 hr |
| Nov 2, 3:30 AM EDT | Freeze Warning | PHI | 30 hr |
| Dec 10, 3:58 AM EST | Wind Advisory | PHI | 45 hr |
| Dec 11, 7:29 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Dec 11, 9:01 PM EST | Severe Thunderstorm Warning | PHI | 48 min |
| Dec 30, 9:33 PM EST | Dense Fog Advisory | PHI | 11 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 | 52 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 16 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 47 |
| Special Weather Statement | 27 |
| Flooding | |
| Areal Flood Warning | 8 |
| Flash Flood Warning | 19 |
| River Flood Warning | 4 |
| Flash Flood Watch | 10 |
| Flood Watch | 1 |
| Areal Flood Advisory | 28 |
| Winter | |
| Ice Storm Warning | 1 |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 8 |
| Heat | |
| Excessive Heat Warning | 2 |
| Excessive Heat Watch | 2 |
| Heat Advisory | 8 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 3 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
| Coast and beach | |
| Coastal Flood Warning | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20202022
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. Rebuilt daily.