Alert archive / New York / Tompkins County
Weather alerts in Tompkins County, New York, 2015
83 weather alerts in 2015, 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 2015. Tap one for its archive.
- Alerts
- 83
- Warnings
- 19
- Watches
- 18
- Advisories
- 19
- Busiest month
- June21 alerts
- Busiest day
- June 12, 20155 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 Tompkins County in 2015 had a tornado report inside them.
Tompkins County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 6 | 6 | 0% | 6 | 67% | 17 min |
| Flash flood warnings | 4 | 2 | 50% | 4 | 25% | 186 min |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Binghamton, NY: tornado warnings | 4 | 0 | 100% | 0 | ||
| NWS Binghamton, NY: severe thunderstorm warnings | 62 | 40 | 35% | 108 | 81% | 23 min |
| NWS Binghamton, NY: flash flood warnings | 26 | 10 | 62% | 41 | 78% | 97 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, 2:28 PM EST | Winter Weather Advisory | BGM | 36 hr |
| Jan 3, 9:59 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 4, 4:12 AM EST | Wind Advisory | BGM | 23 hr |
| Jan 6, 3:55 AM EST | Wind Chill Advisory | BGM | 54 hr |
| Jan 16, 9:04 AM EST | Special Weather Statement | BGM | 101 min |
| Jan 24, 7:33 PM EST | Winter Weather Advisory | BGM | 4 hr |
| Jan 30, 3:35 AM EST | Wind Chill Advisory | BGM | 31 hr |
| Jan 30, 9:30 AM EST | Lake Effect Snow Advisory | BGM | 16 hr |
| Jan 31, 3:44 AM EST | Winter Storm Watch | BGM | 11 hr |
| Jan 31, 3:02 PM EST | Winter Storm Warning | BGM | 47 hr |
| Feb 1, 9:52 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 2, 2:17 PM EST | Wind Chill Advisory | BGM | 18 hr |
| Feb 5, 3:20 PM EST | Wind Chill Advisory | BGM | 19 hr |
| Feb 6, 3:13 PM EST | Winter Storm Watch | BGM | 37 hr |
| Feb 7, 3:40 PM EST | Winter Storm Warning | BGM | 52 hr |
| Feb 11, 4:04 AM EST | Wind Chill Watch | BGM | 23 hr |
| Feb 12, 2:34 AM EST | Wind Chill Warning | BGM | 34 hr |
| Feb 13, 2:39 AM EST | Wind Chill Watch | BGM | 24 hr |
| Feb 13, 9:52 PM EST | Winter Weather Advisory | BGM | 33 hr |
| Feb 14, 2:56 AM EST | Wind Chill Warning | BGM | 55 hr |
| Feb 14, 4:24 PM EST | Special Weather Statement | BGM | 96 min |
| Feb 18, 4:17 AM EST | Wind Chill Watch | BGM | 23 hr |
| Feb 18, 4:17 AM EST | Wind Chill Advisory | BGM | 39 hr |
| Feb 18, 7:06 PM EST | Special Weather Statement | BGM | 84 min |
| Feb 18, 8:10 PM EST | Special Weather Statement | BGM | 80 min |
| Feb 19, 3:11 AM EST | Wind Chill Warning | BGM | 31 hr |
| Feb 20, 10:02 AM EST | Wind Chill Advisory | BGM | 21 hr |
| Feb 22, 3:12 AM EST | Wind Chill Watch | BGM | 11 hr |
| Feb 22, 2:11 PM EST | Wind Chill Warning | BGM | 44 hr |
| Feb 22, 2:11 PM EST | Wind Chill Advisory | BGM | 44 hr |
| Mar 2, 2:45 PM EST | Winter Weather Advisory | BGM | 40 hr |
| Mar 21, 1:51 PM EDT | Lake Effect Snow Advisory | BGM | 20 hr |
| Apr 4, 3:13 AM EDT | Wind Advisory | BGM | 12 hr |
| Apr 20, 3:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 20, 7:31 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 20, 7:56 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 11, 1:32 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 13, 2:50 AM EDT | Frost Advisory | BGM | 29 hr |
| May 21, 3:41 AM EDT | Freeze Watch | BGM | 24 hr |
| May 22, 3:32 AM EDT | Freeze Warning | BGM | 29 hr |
| May 30, 6:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 8, 11:41 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 8, 1:30 PM EDT | Severe Thunderstorm Warning | BGM | 60 min |
| Jun 8, 1:39 PM EDT | Tornado Watch | SPC | 6 hr |
| Jun 9, 10:29 AM EDT | Special Weather Statement | BGM | 61 min |
| Jun 10, 9:02 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 10, 10:57 PM EDT | Tornado Warning | BGM | 48 min |
| Jun 10, 11:38 PM EDT | Severe Thunderstorm Warning | BGM | 41 min |
| Jun 11, 12:16 AM EDT | Special Weather Statement | BGM | 59 min |
| Jun 12, 1:26 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jun 12, 3:07 PM EDT | Tornado Watch | SPC | 8 hr |
| Jun 12, 6:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jun 12, 6:47 PM EDT | Severe Thunderstorm Warning | BGM | 36 min |
| Jun 12, 7:14 PM EDT | Severe Thunderstorm Warning | BGM | 61 min |
| Jun 14, 3:22 PM EDT | Flash Flood Watch | BGM | 13 hr |
| Jun 14, 4:42 PM EDT | Flash Flood Warning | BGM | 9 hr |
| Jun 15, 2:48 PM EDT | Flash Flood Watch | BGM | 24 hr |
| Jun 18, 1:29 PM EDT | River Flood Warning | BGM | 7 days |
| Jun 23, 4:24 AM EDT | Mesoscale Discussion | SPC | 66 min |
| Jun 23, 6:08 AM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 23, 7:43 AM EDT | Special Weather Statement | BGM | 62 min |
| Jun 30, 3:18 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 9, 3:49 AM EDT | Flash Flood Watch | BGM | 16 hr |
| Jul 9, 6:45 PM EDT | Flash Flood Warning | BGM | 3 hr |
| Jul 14, 1:18 PM EDT | Special Weather Statement | BGM | 57 min |
| Jul 14, 2:30 PM EDT | Flash Flood Watch | BGM | 10 hr |
| Jul 14, 2:45 PM EDT | Flash Flood Warning | BGM | 3 hr |
| Jul 14, 6:06 PM EDT | Severe Thunderstorm Warning | BGM | 54 min |
| Jul 14, 7:20 PM EDT | Flash Flood Warning | BGM | 3 hr |
| Jul 19, 1:36 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 19, 3:14 PM EDT | Special Weather Statement | BGM | 61 min |
| Jul 19, 3:18 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 19, 8:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jul 21, 12:15 PM EDT | Special Weather Statement | BGM | 45 min |
| Jul 21, 12:35 PM EDT | Severe Thunderstorm Warning | BGM | 40 min |
| Aug 20, 11:49 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 20, 3:45 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 9, 11:07 AM EDT | Mesoscale Discussion | SPC | 83 min |
| Sep 29, 3:54 AM EDT | Flood Watch | BGM | 32 hr |
| Oct 28, 4:29 AM EDT | Wind Advisory | BGM | 15 hr |
| Dec 6, 5:00 AM EST | Special Weather Statement | BGM | 3 hr |
| Dec 23, 3:06 AM EST | Dense Fog Advisory | BGM | 5 hr |
| Dec 27, 2:43 PM EST | Winter Weather Advisory | BGM | 48 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 archive20142016
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.