Alert archive / New York / Tompkins County
Weather alerts in Tompkins County, New York, 2023
109 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Tompkins County and its neighbors
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Alerts
- 109
- Warnings
- 34
- Watches
- 15
- Advisories
- 26
- Busiest month
- July35 alerts
- Busiest day
- July 24, 202313 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Tompkins County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 27 | 19 | 30% | 16 | 81% | 18 min |
| Flash flood warnings | 2 | 2 | 0% | 1 | 0% |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Binghamton, NY: tornado warnings | 16 | 6 | 63% | 13 | 54% | 15 min |
| NWS Binghamton, NY: severe thunderstorm warnings | 267 | 156 | 42% | 411 | 80% | 19 min |
| NWS Binghamton, NY: flash flood warnings | 57 | 25 | 56% | 94 | 69% | 99 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 16, 2:50 PM EST | Winter Weather Advisory | BGM | 34 hr |
| Jan 18, 2:25 PM EST | Winter Weather Advisory | BGM | 35 hr |
| Jan 21, 2:49 PM EST | Winter Weather Advisory | BGM | 46 hr |
| Jan 24, 3:24 AM EST | Winter Weather Advisory | BGM | 46 hr |
| Feb 2, 3:45 AM EST | Wind Chill Advisory | BGM | 56 hr |
| Feb 2, 9:14 PM EST | Special Weather Statement | BGM | 91 min |
| Feb 2, 10:06 PM EST | Snow Squall Warning | BGM | 54 min |
| Feb 2, 10:39 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 2, 10:58 PM EST | Snow Squall Warning | BGM | 62 min |
| Feb 21, 2:24 PM EST | Special Weather Statement | BGM | 36 min |
| Feb 21, 2:26 PM EST | Winter Weather Advisory | BGM | 44 hr |
| Feb 26, 3:03 PM EST | Winter Weather Advisory | BGM | 48 hr |
| Mar 2, 3:06 PM EST | Winter Weather Advisory | BGM | 46 hr |
| Mar 9, 3:12 AM EST | Winter Weather Advisory | BGM | 54 hr |
| Mar 10, 4:26 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Mar 11, 2:44 PM EST | Winter Storm Watch | BGM | 37 hr |
| Mar 12, 3:20 PM EDT | Winter Storm Warning | BGM | 64 hr |
| Mar 25, 3:37 AM EDT | Wind Advisory | BGM | 31 hr |
| Mar 29, 5:05 PM EDT | Mesoscale Discussion | SPC | 4 hr |
| Mar 31, 3:08 PM EDT | Wind Advisory | BGM | 35 hr |
| Apr 1, 2:02 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Apr 1, 2:27 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 1, 3:49 PM EDT | Severe Thunderstorm Warning | BGM | 56 min |
| Apr 1, 4:01 PM EDT | Severe Thunderstorm Warning | BGM | 59 min |
| Apr 1, 4:24 PM EDT | Severe Thunderstorm Warning | BGM | 48 min |
| Apr 1, 4:43 PM EDT | Severe Thunderstorm Warning | BGM | 21 min |
| Apr 5, 5:31 PM EDT | Severe Thunderstorm Warning | BGM | 29 min |
| Apr 5, 6:01 PM EDT | Severe Thunderstorm Warning | BGM | 29 min |
| Apr 6, 4:54 PM EDT | Fire Weather Watch | BGM | 14 hr |
| Apr 10, 2:32 PM EDT | Fire Weather Watch | BGM | 12 hr |
| Apr 30, 8:39 AM EDT | Flood Watch | BGM | 15 hr |
| May 14, 2:05 PM EDT | Frost Advisory | BGM | 18 hr |
| May 16, 3:22 PM EDT | Freeze Watch | BGM | 20 hr |
| May 17, 11:41 AM EDT | Freeze Warning | BGM | 21 hr |
| May 25, 2:47 AM EDT | Frost Advisory | BGM | 29 hr |
| Jun 14, 3:56 PM EDT | Areal Flood Advisory | BGM | 118 min |
| Jun 14, 4:24 PM EDT | Areal Flood Advisory | BGM | 91 min |
| Jun 17, 1:11 PM EDT | Special Weather Statement | BGM | 34 min |
| Jun 26, 12:36 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 26, 1:11 PM EDT | Severe Thunderstorm Watch | SPC | 11 hr |
| Jun 26, 7:10 PM EDT | Severe Thunderstorm Warning | BGM | 50 min |
| Jun 26, 7:14 PM EDT | Severe Thunderstorm Warning | BGM | 46 min |
| Jun 26, 7:20 PM EDT | Severe Thunderstorm Warning | BGM | 55 min |
| Jun 26, 7:56 PM EDT | Severe Thunderstorm Warning | BGM | 49 min |
| Jun 26, 8:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 26, 8:13 PM EDT | Severe Thunderstorm Warning | BGM | 47 min |
| Jun 26, 8:25 PM EDT | Severe Thunderstorm Warning | BGM | 50 min |
| Jun 27, 5:37 PM EDT | Special Weather Statement | BGM | 23 min |
| Jul 1, 1:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 5:51 PM EDT | Areal Flood Advisory | BGM | 55 min |
| Jul 5, 2:50 PM EDT | Heat Advisory | BGM | 29 hr |
| Jul 7, 2:06 PM EDT | Special Weather Statement | BGM | 24 min |
| Jul 7, 2:16 PM EDT | Severe Thunderstorm Warning | BGM | 44 min |
| Jul 8, 3:02 PM EDT | Flood Watch | BGM | 37 hr |
| Jul 13, 11:58 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 13, 12:43 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 13, 2:21 PM EDT | Severe Thunderstorm Warning | BGM | 54 min |
| Jul 13, 3:12 PM EDT | Severe Thunderstorm Warning | BGM | 63 min |
| Jul 13, 3:20 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 13, 3:34 PM EDT | Severe Thunderstorm Warning | BGM | 56 min |
| Jul 18, 3:15 PM EDT | Special Weather Statement | BGM | 30 min |
| Jul 18, 3:42 PM EDT | Special Weather Statement | BGM | 33 min |
| Jul 20, 6:19 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 20, 10:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 20, 10:32 PM EDT | Special Weather Statement | BGM | 43 min |
| Jul 20, 11:13 PM EDT | Special Weather Statement | BGM | 47 min |
| Jul 24, 11:58 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 24, 1:06 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 24, 2:06 PM EDT | Special Weather Statement | BGM | 24 min |
| Jul 24, 2:12 PM EDT | Severe Thunderstorm Warning | BGM | 48 min |
| Jul 24, 2:54 PM EDT | Severe Thunderstorm Warning | BGM | 25 min |
| Jul 24, 2:56 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 24, 3:26 PM EDT | Severe Thunderstorm Warning | BGM | 49 min |
| Jul 24, 3:53 PM EDT | Severe Thunderstorm Warning | BGM | 52 min |
| Jul 24, 5:26 PM EDT | Special Weather Statement | BGM | 49 min |
| Jul 24, 5:41 PM EDT | Severe Thunderstorm Warning | BGM | 64 min |
| Jul 24, 6:21 PM EDT | Areal Flood Advisory | BGM | 3 hr |
| Jul 24, 6:48 PM EDT | Severe Thunderstorm Warning | BGM | 57 min |
| Jul 24, 7:44 PM EDT | Areal Flood Warning | BGM | 3 hr |
| Jul 27, 3:19 AM EDT | Heat Advisory | BGM | 41 hr |
| Jul 29, 11:33 AM EDT | Mesoscale Discussion | SPC | 117 min |
| Jul 29, 3:08 PM EDT | Special Weather Statement | BGM | 37 min |
| Jul 29, 3:13 PM EDT | Areal Flood Advisory | BGM | 3 hr |
| Aug 4, 11:21 AM EDT | Mesoscale Discussion | SPC | 114 min |
| Aug 4, 12:10 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Aug 7, 12:39 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 7, 4:27 PM EDT | Severe Thunderstorm Warning | BGM | 33 min |
| Aug 9, 2:24 PM EDT | Special Weather Statement | BGM | 36 min |
| Aug 12, 12:50 PM EDT | Tornado Watch | SPC | 8 hr |
| Aug 12, 2:50 PM EDT | Severe Thunderstorm Warning | BGM | 55 min |
| Aug 12, 3:25 PM EDT | Severe Thunderstorm Warning | BGM | 50 min |
| Aug 12, 4:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Aug 15, 7:05 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Aug 17, 10:42 PM EDT | Areal Flood Advisory | BGM | 4 hr |
| Sep 3, 2:08 PM EDT | Heat Advisory | BGM | 29 hr |
| Sep 4, 2:09 PM EDT | Heat Advisory | BGM | 29 hr |
| Sep 5, 2:44 PM EDT | Heat Advisory | BGM | 28 hr |
| Sep 7, 11:58 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 7, 1:14 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 7, 5:07 PM EDT | Special Weather Statement | BGM | 53 min |
| Sep 7, 5:30 PM EDT | Severe Thunderstorm Warning | BGM | 45 min |
| Sep 8, 5:06 PM EDT | Severe Thunderstorm Warning | BGM | 39 min |
| Nov 1, 11:11 AM EDT | Special Weather Statement | BGM | 64 min |
| Dec 3, 8:08 PM EST | Special Weather Statement | BGM | 37 min |
| Dec 10, 3:29 AM EST | Winter Weather Advisory | BGM | 36 hr |
| Dec 16, 1:38 PM EST | Flood Watch | BGM | 50 hr |
| Dec 18, 2:46 AM EST | Areal Flood Advisory | BGM | 3 hr |
| Dec 18, 8:37 AM EST | Flash Flood Warning | BGM | 5 hr |
| Dec 18, 8:58 AM EST | Flash Flood Warning | BGM | 5 hr |
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 archive20222024
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.