Alert archive / Pennsylvania / Mercer County
Weather alerts in Mercer County, Pennsylvania, 2021
105 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Mercer County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 105
- Warnings
- 27
- Watches
- 14
- Advisories
- 16
- Busiest month
- August26 alerts
- Busiest day
- August 12, 20218 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 1, 12:55 PM EST | Winter Weather Advisory | PBZ | 5 hr |
| Jan 22, 9:22 AM EST | Special Weather Statement | PBZ | 53 min |
| Jan 25, 3:47 AM EST | Winter Weather Advisory | PBZ | 30 hr |
| Feb 4, 10:13 PM EST | Special Weather Statement | PBZ | 62 min |
| Feb 13, 1:55 PM EST | Winter Storm Watch | PBZ | 24 hr |
| Feb 14, 1:49 PM EST | Winter Storm Warning | PBZ | 40 hr |
| Mar 24, 1:03 PM EDT | High Wind Watch | PBZ | 24 hr |
| Mar 25, 1:12 PM EDT | High Wind Warning | PBZ | 27 hr |
| Apr 28, 1:06 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Apr 30, 12:59 AM EDT | Freeze Watch | PBZ | 12 hr |
| Apr 30, 12:59 PM EDT | Freeze Warning | PBZ | 20 hr |
| May 8, 4:09 AM EDT | Frost Advisory | PBZ | 28 hr |
| May 10, 12:44 PM EDT | Frost Advisory | PBZ | 14 hr |
| May 11, 11:52 AM EDT | Frost Advisory | PBZ | 19 hr |
| May 12, 11:40 AM EDT | Frost Advisory | PBZ | 20 hr |
| May 26, 12:16 PM EDT | Mesoscale Discussion | SPC | 119 min |
| May 26, 12:59 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 26, 2:24 PM EDT | Severe Thunderstorm Warning | PBZ | 51 min |
| Jun 13, 12:50 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 13, 3:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 13, 3:55 PM EDT | Severe Thunderstorm Warning | PBZ | 35 min |
| Jun 14, 11:17 AM EDT | Severe Thunderstorm Warning | PBZ | 28 min |
| Jun 18, 6:44 PM EDT | Special Weather Statement | PBZ | 46 min |
| Jun 19, 6:34 PM EDT | Special Weather Statement | PBZ | 26 min |
| Jun 19, 6:47 PM EDT | Severe Thunderstorm Warning | PBZ | 43 min |
| Jun 19, 7:07 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jun 19, 11:07 PM EDT | Special Weather Statement | PBZ | 23 min |
| Jun 19, 11:30 PM EDT | Special Weather Statement | PBZ | 30 min |
| Jun 19, 11:57 PM EDT | Special Weather Statement | PBZ | 33 min |
| Jun 20, 5:38 PM EDT | Special Weather Statement | PBZ | 22 min |
| Jun 20, 6:14 PM EDT | Severe Thunderstorm Warning | PBZ | 17 min |
| Jun 21, 7:27 AM EDT | Special Weather Statement | PBZ | 33 min |
| Jun 21, 11:59 AM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 21, 12:31 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 21, 2:15 PM EDT | Severe Thunderstorm Warning | PBZ | 30 min |
| Jun 29, 2:33 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jun 29, 6:39 PM EDT | Special Weather Statement | PBZ | 36 min |
| Jun 29, 8:02 PM EDT | Areal Flood Advisory | PBZ | 118 min |
| Jun 30, 11:30 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 11:47 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 30, 5:05 PM EDT | Special Weather Statement | PBZ | 25 min |
| Jul 7, 3:31 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 7, 4:58 PM EDT | Severe Thunderstorm Warning | PBZ | 47 min |
| Jul 7, 5:20 PM EDT | Severe Thunderstorm Warning | PBZ | 25 min |
| Jul 8, 1:31 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 8, 4:00 PM EDT | Special Weather Statement | PBZ | 45 min |
| Jul 13, 3:14 PM EDT | Severe Thunderstorm Warning | PBZ | 31 min |
| Jul 13, 3:25 PM EDT | Severe Thunderstorm Warning | PBZ | 35 min |
| Jul 13, 3:36 PM EDT | Severe Thunderstorm Warning | PBZ | 39 min |
| Jul 13, 4:05 PM EDT | Severe Thunderstorm Warning | PBZ | 40 min |
| Jul 13, 4:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 15, 8:43 PM EDT | Special Weather Statement | PBZ | 47 min |
| Jul 16, 1:04 PM EDT | Special Weather Statement | PBZ | 41 min |
| Jul 16, 6:57 PM EDT | Areal Flood Advisory | PBZ | 27 min |
| Jul 16, 7:24 PM EDT | Flash Flood Warning | PBZ | 3 hr |
| Jul 16, 10:28 PM EDT | Areal Flood Advisory | PBZ | 3 hr |
| Jul 17, 2:46 AM EDT | Flash Flood Watch | PBZ | 15 hr |
| Jul 17, 11:21 AM EDT | Areal Flood Advisory | PBZ | 4 hr |
| Jul 17, 12:34 PM EDT | Flash Flood Warning | PBZ | 3 hr |
| Jul 20, 6:01 PM EDT | Special Weather Statement | PBZ | 44 min |
| Jul 20, 6:44 PM EDT | Special Weather Statement | PBZ | 31 min |
| Jul 20, 6:50 PM EDT | Severe Thunderstorm Warning | PBZ | 25 min |
| Jul 20, 7:11 PM EDT | Severe Thunderstorm Warning | PBZ | 34 min |
| Aug 1, 1:27 PM EDT | Special Weather Statement | PBZ | 33 min |
| Aug 11, 9:31 AM EDT | Mesoscale Discussion | SPC | 89 min |
| Aug 11, 11:50 AM EDT | Mesoscale Discussion | SPC | 115 min |
| Aug 11, 12:15 PM EDT | Special Weather Statement | PBZ | 45 min |
| Aug 11, 4:57 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Aug 11, 6:18 PM EDT | Special Weather Statement | PBZ | 27 min |
| Aug 11, 6:43 PM EDT | Special Weather Statement | PBZ | 32 min |
| Aug 12, 11:19 AM EDT | Special Weather Statement | PBZ | 41 min |
| Aug 12, 11:33 AM EDT | Severe Thunderstorm Warning | PBZ | 27 min |
| Aug 12, 3:17 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Aug 12, 3:48 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 12, 4:52 PM EDT | Special Weather Statement | PBZ | 23 min |
| Aug 12, 5:03 PM EDT | Severe Thunderstorm Warning | PBZ | 42 min |
| Aug 12, 5:43 PM EDT | Flash Flood Warning | PBZ | 3 hr |
| Aug 12, 6:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Aug 13, 4:46 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 13, 7:49 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Aug 13, 8:41 PM EDT | Special Weather Statement | PBZ | 34 min |
| Aug 13, 9:15 PM EDT | Flash Flood Warning | PBZ | 4 hr |
| Aug 17, 1:28 PM EDT | Flash Flood Watch | PBZ | 27 hr |
| Aug 20, 1:57 AM EDT | Dense Fog Advisory | PBZ | 7 hr |
| Aug 25, 3:12 PM EDT | Special Weather Statement | PBZ | 33 min |
| Aug 25, 3:34 PM EDT | Areal Flood Advisory | PBZ | 116 min |
| Aug 29, 1:07 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Aug 29, 3:17 PM EDT | Severe Thunderstorm Warning | PBZ | 28 min |
| Aug 29, 3:52 PM EDT | Severe Thunderstorm Warning | PBZ | 23 min |
| Sep 22, 1:08 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 22, 2:23 PM EDT | Tornado Watch | SPC | 6 hr |
| Sep 22, 4:08 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Oct 9, 2:06 AM EDT | Areal Flood Advisory | PBZ | 66 min |
| Oct 15, 1:59 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Oct 21, 2:03 PM EDT | Severe Thunderstorm Warning | PBZ | 27 min |
| Oct 21, 2:36 PM EDT | Special Weather Statement | PBZ | 24 min |
| Oct 21, 2:39 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 21, 5:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 21, 6:00 PM EDT | Special Weather Statement | PBZ | 45 min |
| Oct 21, 6:42 PM EDT | Tornado Warning | PBZ | 18 min |
| Dec 10, 11:02 AM EST | Wind Advisory | PBZ | 34 hr |
| Dec 11, 6:41 AM EST | Special Weather Statement | PBZ | 34 min |
| Dec 11, 7:50 AM EST | Special Weather Statement | PBZ | 25 min |
| Dec 26, 5:43 PM EST | Winter Weather Advisory | PBZ | 19 hr |
| Dec 29, 4:51 AM EST | Dense Fog Advisory | PBZ | 3 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 | 19 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 20 |
| Special Weather Statement | 28 |
| Flooding | |
| Flash Flood Warning | 4 |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 6 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 3 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 4 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
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.