Alert archive / Pennsylvania / Monroe County
Weather alerts in Monroe County, Pennsylvania, 2022
138 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Monroe County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 138
- Warnings
- 24
- Watches
- 21
- Advisories
- 38
- Busiest month
- March20 alerts
- Busiest day
- February 19, 20225 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Monroe County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 11 | 7 | 36% | 7 | 86% | 29 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Philadelphia/Mount Holly: tornado warnings | 7 | 0 | 100% | 3 | 0% | |
| NWS Philadelphia/Mount Holly: severe thunderstorm warnings | 170 | 93 | 45% | 306 | 90% | 21 min |
| NWS Philadelphia/Mount Holly: flash flood warnings | 19 | 9 | 53% | 26 | 81% | 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Dec 31, 9:44 PM EST | Dense Fog Advisory | PHI | 12 hr |
| Jan 4, 3:00 PM EST | Winter Weather Advisory | PHI | 21 hr |
| Jan 5, 3:06 PM EST | Winter Weather Advisory | PHI | 43 hr |
| Jan 8, 3:51 AM EST | Winter Weather Advisory | PHI | 35 hr |
| Jan 9, 5:52 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 10, 8:37 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Jan 10, 9:56 PM EST | Special Weather Statement | PHI | 64 min |
| Jan 10, 10:50 PM EST | Special Weather Statement | PHI | 70 min |
| Jan 13, 3:04 PM EST | Wind Chill Advisory | PHI | 43 hr |
| Jan 14, 3:39 PM EST | Winter Storm Watch | PHI | 23 hr |
| Jan 15, 2:58 PM EST | Winter Storm Warning | PHI | 45 hr |
| Jan 28, 3:23 AM EST | Wind Chill Advisory | PHI | 54 hr |
| Feb 2, 3:04 PM EST | Winter Storm Watch | PHI | 12 hr |
| Feb 2, 3:21 PM EST | Dense Fog Advisory | PHI | 15 hr |
| Feb 3, 3:10 AM EST | Winter Weather Advisory | PHI | 42 hr |
| Feb 3, 1:33 PM EST | Dense Fog Advisory | PHI | 8 hr |
| Feb 4, 5:32 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 4, 10:20 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 17, 3:49 AM EST | Wind Advisory | PHI | 30 hr |
| Feb 18, 11:54 AM EST | Wind Advisory | PHI | 33 hr |
| Feb 19, 10:09 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 19, 12:18 PM EST | Special Weather Statement | PHI | 3 hr |
| Feb 19, 12:53 PM EST | Snow Squall Warning | PHI | 52 min |
| Feb 19, 12:58 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 19, 1:36 PM EST | Snow Squall Warning | PHI | 54 min |
| Feb 23, 3:45 AM EST | Winter Storm Watch | PHI | 24 hr |
| Feb 24, 3:38 AM EST | Winter Weather Advisory | PHI | 33 hr |
| Feb 24, 9:13 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Mar 7, 2:57 AM EST | Wind Advisory | PHI | 22 hr |
| Mar 7, 5:53 PM EST | Mesoscale Discussion | SPC | 97 min |
| Mar 7, 6:19 PM EST | Severe Thunderstorm Watch | SPC | 4 hr |
| Mar 7, 7:29 PM EST | Severe Thunderstorm Warning | PHI | 61 min |
| Mar 7, 7:42 PM EST | Mesoscale Discussion | SPC | 93 min |
| Mar 7, 8:05 PM EST | Severe Thunderstorm Warning | PHI | 70 min |
| Mar 8, 3:05 AM EST | Winter Weather Advisory | PHI | 40 hr |
| Mar 10, 2:25 PM EST | Winter Storm Watch | PHI | 14 hr |
| Mar 11, 3:57 AM EST | Winter Storm Warning | PHI | 38 hr |
| Mar 11, 3:19 PM EST | Wind Advisory | PHI | 34 hr |
| Mar 12, 8:53 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Mar 18, 12:55 AM EDT | Dense Fog Advisory | PHI | 10 hr |
| Mar 19, 2:33 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Mar 19, 5:52 PM EDT | Severe Thunderstorm Warning | PHI | 68 min |
| Mar 19, 6:49 PM EDT | Special Weather Statement | PHI | 41 min |
| Mar 28, 11:50 AM EDT | Snow Squall Warning | PHI | 25 min |
| Mar 31, 3:40 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 31, 4:20 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Mar 31, 7:13 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Mar 31, 7:14 PM EDT | Special Weather Statement | PHI | 46 min |
| Mar 31, 8:04 PM EDT | Severe Thunderstorm Warning | PHI | 41 min |
| Apr 7, 12:05 PM EDT | Flood Watch | PHI | 13 hr |
| Apr 7, 7:03 PM EDT | Areal Flood Advisory | PHI | 5 hr |
| Apr 7, 10:47 PM EDT | River Flood Warning | PHI | 10 hr |
| Apr 8, 3:29 AM EDT | Areal Flood Warning | PHI | 19 hr |
| Apr 8, 12:08 PM EDT | River Flood Warning | PHI | 17 hr |
| Apr 14, 2:19 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Apr 18, 3:16 AM EDT | Winter Weather Advisory | PHI | 27 hr |
| Apr 18, 10:06 PM EDT | Mesoscale Discussion | SPC | 5 hr |
| Apr 27, 3:05 PM EDT | Fire Weather Watch | PHI | 13 hr |
| Apr 27, 3:05 PM EDT | Fire Weather Watch | PHI | 36 hr |
| Apr 28, 3:59 AM EDT | Red Flag Warning | PHI | 18 hr |
| Apr 29, 3:27 AM EDT | Red Flag Warning | PHI | 18 hr |
| May 7, 12:14 PM EDT | Areal Flood Advisory | PHI | 4 hr |
| May 16, 1:33 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 16, 2:17 PM EDT | Severe Thunderstorm Warning | PHI | 43 min |
| May 16, 2:43 PM EDT | Mesoscale Discussion | SPC | 92 min |
| May 20, 11:35 AM EDT | Tornado Watch | SPC | 7 hr |
| May 20, 1:49 PM EDT | Mesoscale Discussion | SPC | 86 min |
| May 20, 3:25 PM EDT | Severe Thunderstorm Warning | PHI | 50 min |
| May 20, 3:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| May 20, 3:55 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| May 21, 12:12 AM EDT | Dense Fog Advisory | PHI | 9 hr |
| May 22, 12:20 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 22, 1:53 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 22, 4:15 PM EDT | Mesoscale Discussion | SPC | 90 min |
| May 27, 3:23 AM EDT | Flood Watch | PHI | 21 hr |
| May 27, 12:57 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 27, 3:16 PM EDT | Mesoscale Discussion | SPC | 89 min |
| May 28, 10:18 AM EDT | Areal Flood Advisory | PHI | 98 min |
| Jun 1, 2:19 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 1, 4:11 PM EDT | Special Weather Statement | PHI | 34 min |
| Jun 1, 4:47 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jun 1, 5:28 PM EDT | Severe Thunderstorm Warning | PHI | 47 min |
| Jun 1, 6:18 PM EDT | Special Weather Statement | PHI | 42 min |
| Jun 1, 8:06 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Jun 1, 8:07 PM EDT | Special Weather Statement | BGM | 38 min |
| Jun 1, 8:26 PM EDT | Areal Flood Advisory | PHI | 4 hr |
| Jun 16, 7:51 AM EDT | Areal Flood Advisory | PHI | 99 min |
| Jun 16, 2:43 PM EDT | Tornado Watch | SPC | 8 hr |
| Jul 12, 11:40 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 12, 1:26 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 12, 4:02 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jul 12, 4:34 PM EDT | Severe Thunderstorm Warning | PHI | 56 min |
| Jul 12, 5:25 PM EDT | Severe Thunderstorm Warning | PHI | 45 min |
| Jul 18, 12:18 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jul 18, 1:47 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 18, 4:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jul 18, 6:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 22, 4:19 PM EDT | Special Weather Statement | PHI | 26 min |
| Jul 24, 7:09 PM EDT | Special Weather Statement | PHI | 36 min |
| Jul 24, 7:25 PM EDT | Special Weather Statement | PHI | 35 min |
| Jul 24, 7:57 PM EDT | Special Weather Statement | PHI | 33 min |
| Jul 24, 8:14 PM EDT | Severe Thunderstorm Warning | PHI | 26 min |
| Jul 28, 3:32 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Aug 4, 3:27 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 4, 5:11 PM EDT | Special Weather Statement | PHI | 34 min |
| Aug 5, 1:28 PM EDT | Special Weather Statement | PHI | 32 min |
| Aug 5, 1:52 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Aug 5, 1:59 PM EDT | Special Weather Statement | PHI | 31 min |
| Aug 5, 2:09 PM EDT | Severe Thunderstorm Warning | PHI | 51 min |
| Aug 7, 5:42 PM EDT | Special Weather Statement | PHI | 48 min |
| Aug 7, 8:22 PM EDT | Areal Flood Advisory | PHI | 2 hr |
| Aug 9, 12:43 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 22, 1:46 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Aug 22, 4:10 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 23, 3:23 AM EDT | Dense Fog Advisory | PHI | 6 hr |
| Aug 30, 1:01 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Sep 4, 6:24 PM EDT | Special Weather Statement | PHI | 36 min |
| Sep 4, 6:42 PM EDT | Special Weather Statement | PHI | 33 min |
| Sep 5, 3:04 AM EDT | Flood Watch | PHI | 35 hr |
| Sep 12, 11:27 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Sep 22, 8:58 AM EDT | Special Weather Statement | PHI | 62 min |
| Oct 8, 3:39 AM EDT | Frost Advisory | PHI | 28 hr |
| Nov 12, 4:12 AM EST | Special Weather Statement | PHI | 48 min |
| Nov 14, 2:40 PM EST | Winter Weather Advisory | PHI | 35 hr |
| Nov 18, 5:41 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Nov 18, 6:55 PM EST | Snow Squall Warning | PHI | 65 min |
| Dec 11, 1:58 AM EST | Winter Weather Advisory | PHI | 25 hr |
| Dec 13, 3:08 PM EST | Winter Storm Watch | PHI | 24 hr |
| Dec 14, 3:23 PM EST | Winter Storm Warning | PHI | 42 hr |
| Dec 15, 11:24 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 15, 4:56 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 21, 3:27 PM EST | Flood Watch | PHI | 34 hr |
| Dec 22, 3:38 AM EST | Wind Advisory | PHI | 42 hr |
| Dec 22, 8:33 AM EST | Winter Weather Advisory | PHI | 6 hr |
| Dec 22, 2:58 PM EST | Wind Chill Advisory | PHI | 46 hr |
| Dec 23, 9:09 AM EST | Winter Weather Advisory | PHI | 9 hr |
| Dec 23, 3:32 PM EST | Wind Chill Warning | PHI | 21 hr |
| Dec 31, 5:36 AM EST | Dense Fog Advisory | PHI | 22 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 | 11 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 35 |
| Special Weather Statement | 20 |
| Flooding | |
| Areal Flood Warning | 1 |
| River Flood Warning | 2 |
| Flood Watch | 4 |
| Areal Flood Advisory | 11 |
| Winter | |
| Snow Squall Warning | 4 |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 5 |
| Winter Weather Advisory | 11 |
| Cold | |
| Wind Chill Warning | 1 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 7 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20212023
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.