Alert archive / New York / Delaware County
Weather alerts in Delaware County, New York, 2025
144 weather alerts in 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Delaware County and its neighbors
Each county as a circle sized by its count in 2025. Tap one for its archive.
- Alerts
- 144
- Warnings
- 54
- Watches
- 21
- Advisories
- 32
- Busiest month
- January23 alerts
- Busiest day
- June 22, 20259 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 1 tornado warnings covering Delaware County in 2025 had a tornado report inside them.
Delaware County, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 12 | 9 | 25% | 8 | 75% | 20 min |
| Flash flood warnings | 10 | 7 | 30% | 8 | 88% | 60 min |
Each office's whole area, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Binghamton, NY: tornado warnings | 15 | 2 | 87% | 4 | 75% | 9 min |
| NWS Binghamton, NY: severe thunderstorm warnings | 131 | 88 | 33% | 381 | 89% | 24 min |
| NWS Binghamton, NY: flash flood warnings | 72 | 45 | 38% | 124 | 91% | 66 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 7, 8:33 AM EST | Wind Advisory | BGM | 10 hr |
| Jan 9, 2:30 AM EST | Wind Advisory | BGM | 16 hr |
| Jan 13, 1:29 PM EST | Special Weather Statement | BGM | 46 min |
| Jan 13, 1:45 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Jan 13, 2:17 PM EST | Special Weather Statement | BGM | 43 min |
| Jan 14, 6:52 PM EST | Snow Squall Warning | BGM | 38 min |
| Jan 15, 11:41 AM EST | Special Weather Statement | BGM | 64 min |
| Jan 17, 3:05 PM EST | Winter Storm Watch | BGM | 24 hr |
| Jan 18, 2:55 PM EST | Winter Weather Advisory | BGM | 34 hr |
| Jan 20, 3:12 AM EST | Cold Weather Advisory | BGM | 57 hr |
| Jan 26, 7:12 AM EST | Special Weather Statement | BGM | 48 min |
| Jan 28, 6:02 AM EST | Snow Squall Warning | BGM | 58 min |
| Jan 28, 7:00 AM EST | Snow Squall Warning | BGM | 60 min |
| Jan 28, 8:00 AM EST | Special Weather Statement | BGM | 60 min |
| Jan 28, 9:59 AM EST | Winter Weather Advisory | BGM | 39 hr |
| Jan 29, 3:49 AM EST | Wind Advisory | BGM | 17 hr |
| Jan 29, 11:15 AM EST | Snow Squall Warning | BGM | 45 min |
| Jan 29, 11:39 AM EST | Mesoscale Discussion | SPC | 2 hr |
| Jan 29, 12:00 PM EST | Snow Squall Warning | BGM | 45 min |
| Jan 29, 1:51 PM EST | Special Weather Statement | BGM | 54 min |
| Jan 29, 5:59 PM EST | Snow Squall Warning | BGM | 46 min |
| Jan 30, 3:29 AM EST | Winter Weather Advisory | BGM | 34 hr |
| Jan 30, 10:22 AM EST | Severe Thunderstorm Watch | SPC | 126 days |
| Feb 2, 1:45 PM EST | Winter Weather Advisory | BGM | 13 hr |
| Feb 4, 2:35 PM EST | Winter Weather Advisory | BGM | 47 hr |
| Feb 6, 2:37 PM EST | Winter Storm Watch | BGM | 24 hr |
| Feb 6, 2:51 PM EST | Wind Advisory | BGM | 21 hr |
| Feb 7, 5:28 AM EST | Special Weather Statement | BGM | 62 min |
| Feb 7, 10:16 AM EST | Special Weather Statement | BGM | 44 min |
| Feb 7, 3:06 PM EST | Winter Weather Advisory | BGM | 24 hr |
| Feb 8, 3:06 AM EST | Winter Storm Warning | BGM | 28 hr |
| Feb 8, 6:21 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 11, 2:53 PM EST | Winter Weather Advisory | BGM | 43 hr |
| Feb 14, 4:03 AM EST | Winter Weather Advisory | BGM | 57 hr |
| Feb 15, 3:07 AM EST | High Wind Watch | BGM | 25 hr |
| Feb 16, 4:05 AM EST | High Wind Warning | BGM | 38 hr |
| Feb 17, 3:48 AM EST | Cold Weather Advisory | BGM | 30 hr |
| Feb 17, 6:17 AM EST | Snow Squall Warning | BGM | 43 min |
| Feb 17, 7:18 AM EST | Snow Squall Warning | BGM | 27 min |
| Feb 17, 8:57 AM EST | Snow Squall Warning | BGM | 63 min |
| Feb 17, 10:18 AM EST | Snow Squall Warning | BGM | 57 min |
| Feb 17, 11:15 AM EST | Snow Squall Warning | BGM | 45 min |
| Mar 1, 3:53 AM EST | Cold Weather Advisory | BGM | 26 hr |
| Mar 5, 11:16 AM EST | River Flood Warning | BGM | 23 hr |
| Mar 6, 2:33 AM EST | Wind Advisory | BGM | 37 hr |
| Mar 8, 6:08 AM EST | Special Weather Statement | BGM | 52 min |
| Mar 8, 6:44 AM EST | Snow Squall Warning | BGM | 31 min |
| Mar 8, 7:11 AM EST | Snow Squall Warning | BGM | 49 min |
| Mar 15, 3:27 AM EDT | Wind Advisory | BGM | 40 hr |
| Mar 16, 4:02 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Mar 16, 6:20 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Mar 16, 7:27 PM EDT | Special Weather Statement | BGM | 48 min |
| Mar 18, 2:52 PM EDT | Fire Weather Watch | BGM | 13 hr |
| Mar 19, 10:25 AM EDT | Red Flag Warning | BGM | 9 hr |
| Mar 23, 2:16 PM EDT | Winter Weather Advisory | BGM | 16 hr |
| Apr 11, 2:06 PM EDT | Winter Weather Advisory | BGM | 22 hr |
| Apr 15, 12:08 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 15, 1:26 PM EDT | Severe Thunderstorm Warning | BGM | 49 min |
| Apr 19, 4:48 PM EDT | Severe Thunderstorm Warning | BGM | 42 min |
| Apr 19, 4:59 PM EDT | Special Weather Statement | BGM | 31 min |
| Apr 29, 3:26 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 29, 7:42 PM EDT | Severe Thunderstorm Warning | BGM | 48 min |
| Apr 29, 8:17 PM EDT | Severe Thunderstorm Warning | BGM | 31 min |
| May 2, 5:42 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 4, 5:16 PM EDT | Flash Flood Warning | BGM | 5 hr |
| May 6, 10:46 AM EDT | Flood Watch | BGM | 20 hr |
| May 6, 1:06 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 6, 2:43 PM EDT | Mesoscale Discussion | SPC | 92 min |
| May 6, 4:37 PM EDT | Mesoscale Discussion | SPC | 83 min |
| May 6, 5:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 6, 7:02 PM EDT | Areal Flood Warning | BGM | 6 hr |
| May 8, 2:46 PM EDT | Flood Watch | BGM | 37 hr |
| May 9, 7:55 AM EDT | Areal Flood Warning | BGM | 6 hr |
| May 9, 11:17 AM EDT | River Flood Warning | BGM | 24 hr |
| May 17, 6:01 PM EDT | Special Weather Statement | BGM | 29 min |
| May 19, 3:11 AM EDT | Frost Advisory | BGM | 29 hr |
| Jun 1, 2:58 PM EDT | Frost Advisory | BGM | 17 hr |
| Jun 5, 5:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jun 5, 5:50 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 5, 8:14 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 5, 8:22 PM EDT | Severe Thunderstorm Warning | BGM | 68 min |
| Jun 5, 9:26 PM EDT | Severe Thunderstorm Warning | BGM | 64 min |
| Jun 6, 3:28 AM EDT | Flood Watch | BGM | 33 hr |
| Jun 7, 7:58 AM EDT | Flash Flood Warning | BGM | 3 hr |
| Jun 7, 10:08 AM EDT | Flash Flood Warning | BGM | 112 min |
| Jun 7, 10:33 PM EDT | Areal Flood Warning | BGM | 5 hr |
| Jun 19, 12:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 19, 1:22 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 19, 9:02 PM EDT | Severe Thunderstorm Warning | BGM | 43 min |
| Jun 21, 2:42 AM EDT | Heat Advisory | BGM | 5 days |
| Jun 22, 4:03 AM EDT | Mesoscale Discussion | SPC | 117 min |
| Jun 22, 5:10 AM EDT | Severe Thunderstorm Warning | BGM | 65 min |
| Jun 22, 5:57 AM EDT | Flash Flood Warning | BGM | 5 hr |
| Jun 22, 5:58 AM EDT | Severe Thunderstorm Warning | BGM | 47 min |
| Jun 22, 7:35 AM EDT | Flash Flood Warning | BGM | 3 hr |
| Jun 22, 7:46 AM EDT | Flash Flood Warning | BGM | 3 hr |
| Jun 22, 8:16 AM EDT | Flash Flood Warning | BGM | 3 hr |
| Jun 22, 10:58 AM EDT | Areal Flood Warning | BGM | 4 hr |
| Jun 22, 11:57 AM EDT | Areal Flood Warning | BGM | 108 min |
| Jul 1, 12:28 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 1, 4:40 PM EDT | Special Weather Statement | BGM | 35 min |
| Jul 1, 5:20 PM EDT | Flash Flood Warning | BGM | 60 min |
| Jul 3, 12:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 1:30 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 3, 3:14 PM EDT | Severe Thunderstorm Warning | BGM | 46 min |
| Jul 3, 3:46 PM EDT | Severe Thunderstorm Warning | BGM | 29 min |
| Jul 10, 12:51 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jul 13, 1:23 AM EDT | Flood Watch | BGM | 27 hr |
| Jul 13, 10:43 PM EDT | Flash Flood Warning | BGM | 5 hr |
| Jul 14, 4:44 AM EDT | Flood Watch | BGM | 14 hr |
| Jul 14, 1:20 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 14, 4:32 PM EDT | Flash Flood Warning | BGM | 2 hr |
| Jul 20, 2:01 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jul 30, 2:25 PM EDT | Flood Watch | BGM | 30 hr |
| Aug 13, 1:27 PM EDT | Severe Thunderstorm Warning | BGM | 20 min |
| Sep 8, 1:00 AM EDT | Frost Advisory | BGM | 31 hr |
| Sep 25, 12:32 PM EDT | Tornado Warning | BGM | 28 min |
| Sep 30, 12:38 PM EDT | Freeze Watch | BGM | 12 hr |
| Oct 1, 12:40 AM EDT | Freeze Warning | BGM | 31 hr |
| Oct 8, 1:20 AM EDT | Frost Advisory | BGM | 32 hr |
| Oct 8, 1:20 AM EDT | Freeze Watch | BGM | 24 hr |
| Oct 9, 1:14 AM EDT | Freeze Warning | BGM | 32 hr |
| Oct 30, 12:02 PM EDT | Wind Advisory | BGM | 39 hr |
| Nov 4, 12:25 PM EST | High Wind Watch | BGM | 13 hr |
| Nov 5, 1:02 AM EST | High Wind Warning | BGM | 24 hr |
| Nov 15, 6:42 PM EST | Wind Advisory | BGM | 30 hr |
| Nov 30, 1:07 PM EST | Winter Storm Watch | BGM | 23 hr |
| Dec 1, 1:19 AM EST | Winter Weather Advisory | BGM | 40 hr |
| Dec 2, 9:51 AM EST | Mesoscale Discussion | SPC | 3 hr |
| Dec 2, 1:34 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 4, 12:00 PM EST | Snow Squall Warning | BGM | 30 min |
| Dec 4, 12:25 PM EST | Snow Squall Warning | BGM | 35 min |
| Dec 4, 4:35 PM EST | Snow Squall Warning | BGM | 25 min |
| Dec 9, 1:20 PM EST | Winter Weather Advisory | BGM | 36 hr |
| Dec 10, 10:27 PM EST | Special Weather Statement | BGM | 63 min |
| Dec 17, 12:37 PM EST | Wind Advisory | BGM | 60 hr |
| Dec 22, 1:07 PM EST | Winter Weather Advisory | BGM | 34 hr |
| Dec 24, 1:19 PM EST | Winter Storm Watch | BGM | 24 hr |
| Dec 25, 12:54 PM EST | Winter Storm Warning | BGM | 42 hr |
| Dec 26, 1:22 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 26, 6:41 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 27, 12:35 PM EST | Winter Weather Advisory | BGM | 37 hr |
| Dec 28, 12:59 PM EST | Wind Advisory | BGM | 54 hr |
| Dec 29, 7:18 PM EST | Snow Squall Warning | BGM | 42 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20242026
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.