Alert archive / Pennsylvania / Susquehanna County
Weather alerts in Susquehanna County, Pennsylvania, 2021
206 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Susquehanna County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 206
- Warnings
- 56
- Watches
- 25
- Advisories
- 44
- Busiest month
- July80 alerts
- Busiest day
- July 13, 202113 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 2 tornado warnings covering Susquehanna County in 2021 had a tornado report inside them.
Susquehanna County, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 43 | 26 | 40% | 17 | 71% | 19 min |
| Flash flood warnings | 6 | 4 | 33% | 5 | 20% | 83 min |
Each office's whole area, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Binghamton, NY: tornado warnings | 17 | 0 | 100% | 3 | 0% | |
| NWS Binghamton, NY: severe thunderstorm warnings | 274 | 159 | 42% | 520 | 83% | 21 min |
| NWS Binghamton, NY: flash flood warnings | 83 | 50 | 40% | 193 | 89% | 102 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 2, 2:41 PM EST | Winter Weather Advisory | BGM | 35 hr |
| Jan 3, 9:28 PM EST | Special Weather Statement | BGM | 107 min |
| Jan 3, 10:03 PM EST | Winter Storm Warning | BGM | 4 hr |
| Jan 20, 6:27 AM EST | Special Weather Statement | BGM | 63 min |
| Jan 20, 11:47 AM EST | Special Weather Statement | BGM | 58 min |
| Jan 22, 2:24 PM EST | Special Weather Statement | BGM | 36 min |
| Jan 22, 4:18 PM EST | Special Weather Statement | BGM | 42 min |
| Jan 23, 8:44 AM EST | Special Weather Statement | BGM | 61 min |
| Jan 25, 3:19 PM EST | Winter Weather Advisory | BGM | 38 hr |
| Jan 29, 1:00 AM EST | Special Weather Statement | BGM | 45 min |
| Jan 30, 3:34 PM EST | Winter Storm Watch | BGM | 37 hr |
| Jan 30, 3:34 PM EST | Winter Storm Warning | BGM | 4 days |
| Feb 2, 8:33 AM EST | Special Weather Statement | BGM | 117 min |
| Feb 8, 2:06 PM EST | Winter Weather Advisory | BGM | 25 hr |
| Feb 13, 3:50 PM EST | Winter Storm Watch | BGM | 35 hr |
| Feb 15, 2:55 AM EST | Winter Weather Advisory | BGM | 30 hr |
| Feb 15, 9:16 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 16, 3:22 PM EST | Winter Storm Watch | BGM | 24 hr |
| Feb 17, 3:12 PM EST | Winter Weather Advisory | BGM | 45 hr |
| Feb 20, 5:27 PM EST | Snow Squall Warning | BGM | 48 min |
| Feb 20, 6:17 PM EST | Special Weather Statement | BGM | 58 min |
| Feb 21, 3:25 PM EST | Winter Weather Advisory | BGM | 31 hr |
| Feb 28, 3:19 PM EST | Wind Advisory | BGM | 43 hr |
| Mar 25, 3:35 PM EDT | Wind Advisory | BGM | 28 hr |
| Mar 28, 3:52 PM EDT | Special Weather Statement | BGM | 53 min |
| Mar 28, 4:51 PM EDT | Special Weather Statement | BGM | 54 min |
| Mar 31, 4:02 AM EDT | Winter Weather Advisory | BGM | 30 hr |
| Apr 1, 9:03 PM EDT | Special Weather Statement | BGM | 57 min |
| Apr 28, 6:45 PM EDT | Severe Thunderstorm Warning | BGM | 30 min |
| Apr 29, 3:37 PM EDT | Wind Advisory | BGM | 34 hr |
| Apr 29, 6:51 PM EDT | Special Weather Statement | BGM | 54 min |
| May 4, 3:28 PM EDT | Mesoscale Discussion | SPC | 62 min |
| May 10, 2:31 PM EDT | Frost Advisory | BGM | 17 hr |
| May 12, 3:03 AM EDT | Frost Advisory | BGM | 29 hr |
| May 23, 1:20 PM EDT | Mesoscale Discussion | SPC | 115 min |
| 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, 4:26 PM EDT | Special Weather Statement | BGM | 34 min |
| May 26, 4:36 PM EDT | Severe Thunderstorm Warning | BGM | 24 min |
| May 26, 6:16 PM EDT | Special Weather Statement | BGM | 29 min |
| May 26, 6:46 PM EDT | Severe Thunderstorm Warning | BGM | 25 min |
| May 26, 6:48 PM EDT | Special Weather Statement | BGM | 27 min |
| May 26, 6:53 PM EDT | Severe Thunderstorm Warning | BGM | 37 min |
| Jun 8, 10:39 AM EDT | Special Weather Statement | BGM | 36 min |
| Jun 8, 5:34 PM EDT | Areal Flood Advisory | BGM | 116 min |
| Jun 8, 5:53 PM EDT | Flash Flood Warning | BGM | 63 min |
| Jun 8, 6:38 PM EDT | Special Weather Statement | BGM | 52 min |
| Jun 9, 4:57 PM EDT | Special Weather Statement | BGM | 33 min |
| Jun 9, 5:18 PM EDT | Areal Flood Advisory | BGM | 57 min |
| Jun 13, 2:38 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 13, 3:26 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 13, 4:56 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 13, 7:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jun 14, 2:48 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 14, 3:14 PM EDT | Special Weather Statement | BGM | 31 min |
| Jun 14, 4:22 PM EDT | Severe Thunderstorm Warning | BGM | 38 min |
| Jun 21, 1:51 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jun 21, 3:45 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 21, 6:27 PM EDT | Severe Thunderstorm Warning | BGM | 48 min |
| Jun 21, 6:50 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jun 21, 6:52 PM EDT | Special Weather Statement | BGM | 38 min |
| Jun 21, 7:09 PM EDT | Severe Thunderstorm Warning | BGM | 66 min |
| Jun 28, 3:53 PM EDT | Heat Advisory | BGM | 28 hr |
| Jun 29, 3:30 PM EDT | Heat Advisory | BGM | 29 hr |
| Jun 30, 2:33 PM EDT | Special Weather Statement | BGM | 27 min |
| Jun 30, 2:57 PM EDT | Special Weather Statement | BGM | 33 min |
| Jun 30, 3:21 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 30, 3:27 PM EDT | Special Weather Statement | BGM | 33 min |
| Jun 30, 3:54 PM EDT | Severe Thunderstorm Warning | BGM | 51 min |
| Jun 30, 4:33 PM EDT | Severe Thunderstorm Warning | BGM | 42 min |
| Jun 30, 4:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 30, 4:50 PM EDT | Severe Thunderstorm Warning | BGM | 40 min |
| Jun 30, 5:32 PM EDT | Special Weather Statement | BGM | 43 min |
| Jul 2, 3:13 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jul 2, 6:21 PM EDT | Severe Thunderstorm Warning | BGM | 24 min |
| Jul 2, 6:40 PM EDT | Special Weather Statement | BGM | 35 min |
| Jul 2, 6:46 PM EDT | Severe Thunderstorm Warning | BGM | 44 min |
| Jul 2, 6:57 PM EDT | Areal Flood Advisory | BGM | 9 min |
| Jul 2, 7:06 PM EDT | Flash Flood Warning | BGM | 3 hr |
| Jul 2, 7:22 PM EDT | Areal Flood Advisory | BGM | 113 min |
| Jul 3, 4:34 PM EDT | Special Weather Statement | BGM | 26 min |
| Jul 6, 12:33 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 6, 1:13 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 6, 3:08 PM EDT | Severe Thunderstorm Warning | BGM | 37 min |
| Jul 6, 3:28 PM EDT | Severe Thunderstorm Warning | BGM | 47 min |
| Jul 6, 3:42 PM EDT | Severe Thunderstorm Warning | BGM | 63 min |
| Jul 6, 4:06 PM EDT | Severe Thunderstorm Warning | BGM | 39 min |
| Jul 6, 4:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 6, 4:41 PM EDT | Severe Thunderstorm Warning | BGM | 49 min |
| Jul 6, 5:42 PM EDT | Severe Thunderstorm Warning | BGM | 48 min |
| Jul 7, 2:41 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 7, 4:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jul 7, 7:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 7, 8:50 PM EDT | Severe Thunderstorm Warning | BGM | 40 min |
| Jul 7, 9:24 PM EDT | Severe Thunderstorm Warning | BGM | 66 min |
| Jul 7, 10:06 PM EDT | Severe Thunderstorm Warning | BGM | 54 min |
| Jul 7, 10:15 PM EDT | Areal Flood Advisory | BGM | 3 hr |
| Jul 7, 10:29 PM EDT | Severe Thunderstorm Warning | BGM | 76 min |
| Jul 7, 10:51 PM EDT | Areal Flood Advisory | BGM | 2 hr |
| Jul 8, 7:40 PM EDT | Areal Flood Advisory | BGM | 75 min |
| Jul 9, 3:57 PM EDT | Severe Thunderstorm Warning | BGM | 48 min |
| Jul 9, 4:35 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 9, 4:46 PM EDT | Severe Thunderstorm Warning | BGM | 44 min |
| Jul 9, 5:30 PM EDT | Severe Thunderstorm Warning | BGM | 45 min |
| Jul 11, 3:31 AM EDT | Flash Flood Watch | BGM | 30 hr |
| Jul 11, 7:20 PM EDT | Flash Flood Warning | BGM | 5 hr |
| Jul 12, 10:58 AM EDT | Flash Flood Watch | BGM | 15 hr |
| Jul 12, 5:12 PM EDT | Areal Flood Advisory | BGM | 108 min |
| Jul 12, 6:05 PM EDT | Special Weather Statement | BGM | 25 min |
| Jul 12, 6:31 PM EDT | Special Weather Statement | BGM | 44 min |
| Jul 12, 6:37 PM EDT | Flash Flood Warning | BGM | 3 hr |
| Jul 12, 7:08 PM EDT | Tornado Warning | BGM | 37 min |
| Jul 12, 8:29 PM EDT | Flash Flood Warning | BGM | 2 hr |
| Jul 12, 8:59 PM EDT | Severe Thunderstorm Warning | BGM | 46 min |
| Jul 12, 9:43 PM EDT | Severe Thunderstorm Warning | BGM | 47 min |
| Jul 12, 10:09 PM EDT | Flash Flood Warning | BGM | 3 hr |
| Jul 12, 10:35 PM EDT | Severe Thunderstorm Warning | BGM | 40 min |
| Jul 12, 11:09 PM EDT | Severe Thunderstorm Warning | BGM | 51 min |
| Jul 12, 11:17 PM EDT | Areal Flood Advisory | BGM | 118 min |
| Jul 12, 11:38 PM EDT | Areal Flood Advisory | BGM | 112 min |
| Jul 13, 12:48 PM EDT | Flash Flood Watch | BGM | 11 hr |
| Jul 13, 12:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jul 13, 1:37 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 13, 4:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 13, 6:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jul 13, 9:12 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jul 13, 9:32 PM EDT | Severe Thunderstorm Warning | BGM | 43 min |
| Jul 13, 10:07 PM EDT | Severe Thunderstorm Warning | BGM | 53 min |
| Jul 16, 1:19 PM EDT | Special Weather Statement | BGM | 41 min |
| Jul 16, 2:24 PM EDT | Flash Flood Watch | BGM | 32 hr |
| 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, 4:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 17, 4:45 PM EDT | Special Weather Statement | BGM | 30 min |
| Jul 17, 5:16 PM EDT | Special Weather Statement | BGM | 29 min |
| Jul 17, 5:23 PM EDT | Severe Thunderstorm Warning | BGM | 67 min |
| Jul 17, 5:28 PM EDT | Severe Thunderstorm Warning | BGM | 62 min |
| Jul 17, 5:35 PM EDT | Severe Thunderstorm Warning | BGM | 55 min |
| Jul 17, 6:04 PM EDT | Severe Thunderstorm Warning | BGM | 41 min |
| Jul 17, 6:31 PM EDT | Areal Flood Advisory | BGM | 2 hr |
| Jul 17, 6:39 PM EDT | Severe Thunderstorm Warning | BGM | 36 min |
| Jul 17, 6:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 17, 7:06 PM EDT | Areal Flood Advisory | BGM | 2 hr |
| Jul 20, 9:28 PM EDT | Severe Thunderstorm Warning | BGM | 62 min |
| Jul 20, 10:01 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Jul 27, 11:12 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 27, 2:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jul 27, 3:51 PM EDT | Severe Thunderstorm Warning | BGM | 39 min |
| Jul 27, 4:22 PM EDT | Severe Thunderstorm Warning | BGM | 53 min |
| Jul 27, 4:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 27, 6:09 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jul 29, 8:40 PM EDT | Special Weather Statement | BGM | 50 min |
| Jul 29, 9:27 PM EDT | Special Weather Statement | BGM | 48 min |
| Aug 1, 12:27 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 1, 3:09 PM EDT | Special Weather Statement | BGM | 36 min |
| Aug 1, 4:40 PM EDT | Special Weather Statement | BGM | 50 min |
| Aug 10, 3:14 PM EDT | Heat Advisory | BGM | 28 hr |
| Aug 11, 3:15 AM EDT | Heat Advisory | BGM | 40 hr |
| Aug 12, 11:03 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 12, 1:42 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 12, 9:14 PM EDT | Severe Thunderstorm Warning | BGM | 46 min |
| Aug 12, 9:46 PM EDT | Special Weather Statement | BGM | 44 min |
| Aug 12, 9:56 PM EDT | Severe Thunderstorm Warning | BGM | 49 min |
| Aug 12, 10:08 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Aug 13, 2:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Aug 13, 3:29 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 13, 7:14 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Aug 17, 11:52 AM EDT | Flash Flood Watch | BGM | 44 hr |
| Aug 18, 11:03 PM EDT | Areal Flood Advisory | BGM | 117 min |
| Aug 21, 3:31 PM EDT | Flash Flood Watch | BGM | 48 hr |
| Aug 22, 8:27 PM EDT | Areal Flood Advisory | BGM | 8 hr |
| Aug 22, 9:40 PM EDT | Areal Flood Advisory | BGM | 3 hr |
| Aug 23, 4:34 AM EDT | Areal Flood Advisory | BGM | 67 min |
| Aug 26, 5:27 PM EDT | Special Weather Statement | BGM | 33 min |
| Aug 26, 5:37 PM EDT | Severe Thunderstorm Warning | BGM | 25 min |
| Aug 27, 6:27 PM EDT | Areal Flood Advisory | BGM | 2 hr |
| Aug 27, 6:53 PM EDT | Areal Flood Advisory | BGM | 2 hr |
| Aug 27, 7:57 PM EDT | Areal Flood Advisory | BGM | 2 hr |
| Aug 30, 4:54 AM EDT | Flash Flood Watch | BGM | 70 hr |
| Aug 30, 8:24 PM EDT | Areal Flood Advisory | BGM | 67 min |
| Sep 1, 8:08 PM EDT | Areal Flood Advisory | BGM | 3 hr |
| Sep 8, 4:05 PM EDT | Special Weather Statement | BGM | 25 min |
| Sep 8, 4:15 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 13, 12:26 AM EDT | Mesoscale Discussion | SPC | 94 min |
| Sep 15, 10:33 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 15, 11:55 AM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 15, 1:22 PM EDT | Severe Thunderstorm Warning | BGM | 23 min |
| Sep 15, 2:32 PM EDT | Special Weather Statement | BGM | 43 min |
| Sep 15, 3:18 PM EDT | Special Weather Statement | BGM | 42 min |
| Sep 15, 4:38 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Sep 22, 3:05 PM EDT | Flash Flood Watch | BGM | 37 hr |
| Sep 23, 11:22 AM EDT | Areal Flood Advisory | BGM | 3 hr |
| Sep 23, 11:45 AM EDT | Areal Flood Advisory | BGM | 3 hr |
| Oct 16, 11:06 AM EDT | Mesoscale Discussion | SPC | 114 min |
| Oct 16, 12:35 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Oct 25, 3:01 PM EDT | Flash Flood Watch | BGM | 33 hr |
| Oct 26, 3:20 PM EDT | Areal Flood Warning | BGM | 115 min |
| Oct 26, 4:26 PM EDT | River Flood Warning | BGM | 32 hr |
| Nov 12, 6:04 AM EST | Special Weather Statement | BGM | 41 min |
| Nov 12, 6:49 AM EST | Special Weather Statement | BGM | 56 min |
| Nov 12, 7:16 AM EST | Tornado Warning | BGM | 29 min |
| Dec 5, 3:38 AM EST | Wind Advisory | BGM | 45 hr |
| Dec 10, 10:12 AM EST | Wind Advisory | BGM | 39 hr |
| Dec 26, 4:56 PM EST | Winter Weather Advisory | BGM | 38 hr |
| Dec 28, 2:17 PM EST | Winter Weather Advisory | BGM | 17 hr |
| Dec 30, 9:35 PM EST | Dense Fog Advisory | BGM | 10 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 | 43 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 13 |
| Mesoscale Discussion | 38 |
| Special Weather Statement | 43 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 6 |
| River Flood Warning | 1 |
| Flash Flood Watch | 9 |
| Areal Flood Advisory | 23 |
| Winter | |
| Snow Squall Warning | 1 |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 9 |
| Heat | |
| Heat Advisory | 4 |
| Cold | |
| Frost Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 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. Warning verification from the Mesonet's Cow. Rebuilt daily.