Alert archive / Pennsylvania / Bradford County
Weather alerts in Bradford County, Pennsylvania, 2020
114 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Bradford County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 114
- Warnings
- 31
- Watches
- 9
- Advisories
- 25
- Busiest month
- May25 alerts
- Busiest day
- May 29, 202010 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Bradford County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 10 | 8 | 20% | 6 | 83% | 14 min |
| Flash flood warnings | 6 | 3 | 50% | 9 | 89% | 84 min |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Binghamton, NY: tornado warnings | 6 | 0 | 100% | 0 | ||
| NWS Binghamton, NY: severe thunderstorm warnings | 136 | 92 | 32% | 361 | 76% | 22 min |
| NWS Binghamton, NY: flash flood warnings | 31 | 17 | 45% | 39 | 82% | 94 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 8, 6:37 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 8, 10:45 AM EST | Special Weather Statement | BGM | 45 min |
| Jan 11, 1:36 PM EST | Wind Advisory | BGM | 23 hr |
| Jan 15, 2:36 PM EST | Wind Advisory | BGM | 28 hr |
| Jan 16, 11:33 AM EST | Special Weather Statement | BGM | 27 min |
| Jan 16, 11:54 AM EST | Special Weather Statement | BGM | 36 min |
| Jan 17, 3:10 PM EST | Winter Weather Advisory | BGM | 38 hr |
| Feb 2, 3:25 PM EST | Special Weather Statement | BGM | 95 min |
| Feb 5, 3:52 AM EST | Winter Weather Advisory | BGM | 38 hr |
| Feb 6, 3:21 PM EST | Winter Storm Warning | BGM | 27 hr |
| Feb 6, 3:21 PM EST | Winter Weather Advisory | BGM | 27 hr |
| Feb 7, 8:39 AM EST | Special Weather Statement | BGM | 81 min |
| Feb 7, 9:58 AM EST | Special Weather Statement | BGM | 2 hr |
| Feb 8, 1:39 PM EST | Special Weather Statement | BGM | 111 min |
| Feb 8, 3:35 PM EST | Special Weather Statement | BGM | 115 min |
| Feb 11, 8:37 AM EST | Dense Fog Advisory | BGM | 4 hr |
| Feb 11, 2:47 PM EST | Winter Weather Advisory | BGM | 45 hr |
| Feb 26, 3:25 PM EST | Wind Advisory | BGM | 34 hr |
| Feb 29, 7:27 AM EST | Special Weather Statement | BGM | 78 min |
| Mar 3, 7:23 PM EST | Special Weather Statement | BGM | 37 min |
| Mar 20, 3:29 PM EDT | Special Weather Statement | BGM | 61 min |
| Apr 12, 2:04 PM EDT | Wind Advisory | BGM | 32 hr |
| Apr 13, 2:13 PM EDT | Special Weather Statement | BGM | 47 min |
| Apr 13, 2:41 PM EDT | Severe Thunderstorm Warning | BGM | 49 min |
| Apr 13, 2:42 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Apr 13, 3:10 PM EDT | Severe Thunderstorm Warning | BGM | 43 min |
| Apr 17, 3:34 AM EDT | Winter Weather Advisory | BGM | 30 hr |
| Apr 17, 6:55 PM EDT | Mesoscale Discussion | SPC | 4 hr |
| Apr 29, 3:07 AM EDT | Flood Watch | BGM | 49 hr |
| Apr 30, 3:47 PM EDT | Areal Flood Advisory | BGM | 6 hr |
| Apr 30, 4:47 PM EDT | Areal Flood Warning | BGM | 9 hr |
| Apr 30, 5:38 PM EDT | Areal Flood Advisory | BGM | 6 hr |
| Apr 30, 8:19 PM EDT | Areal Flood Warning | BGM | 6 hr |
| Apr 30, 10:21 PM EDT | Areal Flood Warning | BGM | 6 hr |
| May 10, 2:29 PM EDT | Freeze Watch | BGM | 12 hr |
| May 11, 2:48 AM EDT | Freeze Warning | BGM | 30 hr |
| May 12, 10:08 AM EDT | Freeze Warning | BGM | 23 hr |
| May 13, 10:23 AM EDT | Freeze Warning | BGM | 22 hr |
| May 15, 3:32 PM EDT | Tornado Watch | SPC | 6 hr |
| May 15, 4:03 PM EDT | Special Weather Statement | BGM | 57 min |
| May 15, 7:47 PM EDT | Mesoscale Discussion | SPC | 58 min |
| May 15, 7:50 PM EDT | Areal Flood Advisory | BGM | 115 min |
| May 15, 8:17 PM EDT | Areal Flood Advisory | BGM | 3 hr |
| May 15, 8:29 PM EDT | Special Weather Statement | BGM | 46 min |
| May 25, 6:28 PM EDT | Severe Thunderstorm Warning | BGM | 23 min |
| May 28, 6:43 PM EDT | Special Weather Statement | BGM | 47 min |
| May 28, 8:15 PM EDT | Areal Flood Advisory | BGM | 3 hr |
| May 29, 1:11 PM EDT | Special Weather Statement | BGM | 34 min |
| May 29, 2:25 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 29, 2:59 PM EDT | Special Weather Statement | BGM | 31 min |
| May 29, 3:08 PM EDT | Severe Thunderstorm Warning | BGM | 67 min |
| May 29, 3:27 PM EDT | Areal Flood Advisory | BGM | 3 hr |
| May 29, 3:50 PM EDT | Flash Flood Warning | BGM | 3 hr |
| May 29, 4:05 PM EDT | Areal Flood Advisory | BGM | 3 hr |
| May 29, 4:17 PM EDT | Severe Thunderstorm Warning | BGM | 58 min |
| May 29, 5:05 PM EDT | Flash Flood Warning | BGM | 2 hr |
| May 29, 8:01 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jun 3, 4:32 AM EDT | Special Weather Statement | BGM | 28 min |
| Jun 3, 8:32 AM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 10, 1:39 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 11, 2:13 AM EDT | Areal Flood Advisory | BGM | 3 hr |
| Jun 20, 4:34 PM EDT | Special Weather Statement | BGM | 26 min |
| Jun 20, 5:26 PM EDT | Special Weather Statement | BGM | 34 min |
| Jun 20, 6:50 PM EDT | Special Weather Statement | BGM | 55 min |
| Jul 6, 3:32 PM EDT | Special Weather Statement | BGM | 43 min |
| Jul 6, 4:13 PM EDT | Severe Thunderstorm Warning | BGM | 47 min |
| Jul 6, 4:25 PM EDT | Special Weather Statement | BGM | 50 min |
| Jul 8, 1:29 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jul 8, 4:47 PM EDT | Special Weather Statement | BGM | 43 min |
| Jul 8, 5:29 PM EDT | Special Weather Statement | BGM | 31 min |
| Jul 11, 2:06 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 19, 4:34 PM EDT | Severe Thunderstorm Warning | BGM | 26 min |
| Jul 19, 5:01 PM EDT | Severe Thunderstorm Warning | BGM | 59 min |
| Jul 19, 5:52 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jul 23, 12:05 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 23, 2:49 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 23, 3:56 PM EDT | Severe Thunderstorm Warning | BGM | 64 min |
| Jul 23, 4:39 PM EDT | Areal Flood Advisory | BGM | 3 hr |
| Jul 30, 1:20 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 30, 5:14 PM EDT | Special Weather Statement | BGM | 46 min |
| Jul 30, 5:19 PM EDT | Severe Thunderstorm Warning | BGM | 56 min |
| Jul 30, 5:49 PM EDT | Special Weather Statement | BGM | 26 min |
| Jul 30, 6:49 PM EDT | Areal Flood Advisory | BGM | 50 min |
| Aug 7, 4:02 AM EDT | Special Weather Statement | BGM | 58 min |
| Aug 7, 4:37 AM EDT | Areal Flood Advisory | BGM | 3 hr |
| Aug 7, 5:08 AM EDT | Flash Flood Warning | BGM | 3 hr |
| Aug 7, 8:31 AM EDT | Areal Flood Advisory | BGM | 3 hr |
| Aug 17, 8:28 PM EDT | Special Weather Statement | BGM | 47 min |
| Aug 24, 12:44 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 24, 1:27 PM EDT | Special Weather Statement | BGM | 48 min |
| Aug 24, 1:29 PM EDT | Special Weather Statement | BGM | 16 min |
| Aug 25, 12:02 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Aug 25, 1:21 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 27, 2:49 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 27, 6:19 PM EDT | Special Weather Statement | BGM | 56 min |
| Sep 18, 3:12 AM EDT | Frost Advisory | BGM | 29 hr |
| Sep 19, 3:04 PM EDT | Frost Advisory | BGM | 18 hr |
| Sep 20, 2:41 PM EDT | Frost Advisory | BGM | 18 hr |
| Nov 1, 3:21 PM EST | Special Weather Statement | BGM | 54 min |
| Nov 15, 5:32 PM EST | Special Weather Statement | BGM | 58 min |
| Dec 14, 3:42 AM EST | Winter Storm Watch | BGM | 48 hr |
| Dec 15, 3:53 AM EST | Winter Storm Warning | BGM | 54 hr |
| Dec 16, 10:12 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 22, 2:59 PM EST | Flood Watch | BGM | 69 hr |
| Dec 24, 11:30 AM EST | River Flood Warning | BGM | 42 hr |
| Dec 24, 11:30 AM EST | River Flood Warning | BGM | 21 days |
| Dec 24, 11:30 AM EST | River Flood Warning | BGM | 59 hr |
| Dec 24, 4:00 PM EST | River Flood Warning | BGM | 41 hr |
| Dec 24, 5:54 PM EST | Flash Flood Warning | BGM | 8 hr |
| Dec 24, 6:46 PM EST | Flash Flood Warning | BGM | 8 hr |
| Dec 25, 1:40 AM EST | Areal Flood Warning | BGM | 6 hr |
| Dec 25, 2:13 AM EST | Flash Flood Warning | BGM | 4 hr |
| Dec 25, 5:53 AM EST | Areal Flood Warning | BGM | 6 hr |
| Dec 25, 4:06 PM EST | River Flood Warning | BGM | 68 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 | 10 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 15 |
| Special Weather Statement | 34 |
| Flooding | |
| Areal Flood Warning | 5 |
| Flash Flood Warning | 6 |
| River Flood Warning | 5 |
| Flood Watch | 2 |
| Areal Flood Advisory | 12 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 5 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 1 |
| Frost Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 4 |
| 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 archive20192021
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.