Alert archive / New York / Cortland County
Weather alerts in Cortland County, New York, 2012
122 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Cortland County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 122
- Warnings
- 31
- Watches
- 18
- Advisories
- 26
- Busiest month
- September23 alerts
- Busiest day
- May 29, 201210 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 Cortland County in 2012 had a tornado report inside them.
Cortland County, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 19 | 17 | 11% | 8 | 75% | 29 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Binghamton, NY: tornado warnings | 13 | 4 | 69% | 11 | 73% | 15 min |
| NWS Binghamton, NY: severe thunderstorm warnings | 138 | 99 | 28% | 264 | 86% | 24 min |
| NWS Binghamton, NY: flash flood warnings | 3 | 1 | 67% | 3 | 100% | 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 1, 4:44 AM EST | Lake Effect Snow Warning | BGM | 52 hr |
| Jan 12, 1:29 PM EST | Winter Weather Advisory | BGM | 36 hr |
| Jan 12, 8:49 PM EST | Wind Advisory | BGM | 19 hr |
| Jan 13, 3:18 PM EST | Winter Storm Warning | BGM | 17 hr |
| Jan 14, 8:28 AM EST | Lake Effect Snow Advisory | BGM | 17 hr |
| Jan 16, 4:04 AM EST | Winter Weather Advisory | BGM | 24 hr |
| Jan 17, 4:20 AM EST | Wind Advisory | BGM | 27 hr |
| Jan 17, 6:40 PM EST | High Wind Warning | BGM | 13 hr |
| Jan 17, 8:22 PM EST | Special Weather Statement | BGM | 53 min |
| Jan 17, 9:04 PM EST | Special Weather Statement | BGM | 56 min |
| Jan 17, 9:10 PM EST | Special Weather Statement | BGM | 50 min |
| Jan 19, 9:56 PM EST | Special Weather Statement | BGM | 2 hr |
| Jan 24, 3:35 PM EST | Freezing Rain Advisory | BGM | 6 hr |
| Jan 29, 8:56 PM EST | Special Weather Statement | BGM | 34 min |
| Feb 11, 7:54 PM EST | Lake Effect Snow Advisory | BGM | 34 hr |
| Feb 12, 9:06 AM EST | Special Weather Statement | BGM | 54 min |
| Feb 12, 10:34 AM EST | Special Weather Statement | BGM | 71 min |
| Feb 18, 8:50 AM EST | Special Weather Statement | BGM | 85 min |
| Feb 23, 4:27 PM EST | Winter Weather Advisory | BGM | 18 hr |
| Feb 23, 11:48 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 24, 4:24 AM EST | Wind Advisory | BGM | 41 hr |
| Feb 24, 4:05 PM EST | Lake Effect Snow Advisory | BGM | 24 hr |
| Feb 28, 4:11 AM EST | Winter Storm Watch | BGM | 12 hr |
| Feb 28, 4:23 PM EST | Winter Weather Advisory | BGM | 47 hr |
| Feb 29, 11:05 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 29, 11:17 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Mar 2, 3:24 PM EST | Wind Advisory | BGM | 26 hr |
| Mar 19, 4:15 PM EDT | Special Weather Statement | BGM | 60 min |
| Apr 9, 3:47 AM EDT | Wind Advisory | BGM | 14 hr |
| Apr 16, 1:33 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Apr 17, 4:03 AM EDT | Freeze Watch | BGM | 11 hr |
| Apr 17, 2:35 PM EDT | Freeze Warning | BGM | 17 hr |
| Apr 18, 2:13 PM EDT | Frost Advisory | BGM | 18 hr |
| Apr 22, 3:14 PM EDT | Winter Weather Advisory | BGM | 20 hr |
| Apr 25, 3:13 PM EDT | Frost Advisory | BGM | 18 hr |
| Apr 26, 3:36 PM EDT | Freeze Watch | BGM | 11 hr |
| Apr 27, 2:44 AM EDT | Freeze Warning | BGM | 30 hr |
| Apr 28, 3:54 AM EDT | Freeze Watch | BGM | 11 hr |
| Apr 28, 2:55 PM EDT | Hard Freeze Warning | BGM | 19 hr |
| Apr 29, 3:05 AM EDT | Freeze Watch | BGM | 9 hr |
| Apr 29, 12:00 PM EDT | Hard Freeze Warning | BGM | 21 hr |
| May 3, 8:06 PM EDT | Severe Thunderstorm Warning | BGM | 54 min |
| May 4, 12:19 AM EDT | Mesoscale Discussion | SPC | 86 min |
| May 16, 12:27 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 16, 1:18 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| May 16, 3:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| May 17, 3:33 AM EDT | Frost Advisory | BGM | 28 hr |
| May 25, 3:08 PM EDT | Mesoscale Discussion | SPC | 97 min |
| May 28, 10:35 AM EDT | Severe Thunderstorm Warning | BGM | 47 min |
| May 29, 11:43 AM EDT | Mesoscale Discussion | SPC | 62 min |
| May 29, 12:01 PM EDT | Mesoscale Discussion | SPC | 59 min |
| May 29, 1:03 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 29, 2:05 PM EDT | Severe Thunderstorm Warning | BGM | 55 min |
| May 29, 2:09 PM EDT | Severe Thunderstorm Warning | BGM | 66 min |
| May 29, 2:13 PM EDT | Severe Thunderstorm Warning | BGM | 62 min |
| May 29, 2:13 PM EDT | Mesoscale Discussion | SPC | 62 min |
| May 29, 2:27 PM EDT | Severe Thunderstorm Warning | BGM | 63 min |
| May 29, 3:12 PM EDT | Severe Thunderstorm Warning | BGM | 63 min |
| May 29, 3:12 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Jun 1, 9:28 PM EDT | Special Weather Statement | BGM | 62 min |
| Jul 7, 10:31 AM EDT | Special Weather Statement | BGM | 59 min |
| Jul 7, 10:41 AM EDT | Special Weather Statement | BGM | 64 min |
| Jul 23, 12:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jul 23, 1:24 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 23, 1:25 PM EDT | Severe Thunderstorm Warning | BGM | 65 min |
| Jul 23, 2:32 PM EDT | Severe Thunderstorm Warning | BGM | 45 min |
| Jul 23, 4:01 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jul 23, 10:29 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jul 26, 4:10 AM EDT | Special Weather Statement | BGM | 65 min |
| Jul 26, 1:50 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 26, 2:10 PM EDT | Tornado Watch | SPC | 6 hr |
| Jul 31, 6:31 PM EDT | Special Weather Statement | BGM | 44 min |
| Aug 5, 12:42 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 5, 4:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Aug 9, 10:23 PM EDT | Severe Thunderstorm Warning | BGM | 67 min |
| Aug 10, 6:16 AM EDT | Severe Thunderstorm Warning | BGM | 44 min |
| Aug 14, 6:22 PM EDT | Special Weather Statement | BGM | 83 min |
| Aug 14, 7:52 PM EDT | Special Weather Statement | BGM | 53 min |
| Aug 14, 8:06 PM EDT | Severe Thunderstorm Warning | BGM | 54 min |
| Aug 14, 8:16 PM EDT | Tornado Warning | BGM | 44 min |
| Aug 14, 8:33 PM EDT | Areal Flood Advisory | BGM | 3 hr |
| Aug 27, 6:46 PM EDT | Special Weather Statement | BGM | 59 min |
| Sep 6, 1:04 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Sep 6, 2:50 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 6, 3:38 PM EDT | Severe Thunderstorm Warning | BGM | 52 min |
| Sep 6, 4:27 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Sep 6, 4:41 PM EDT | Special Weather Statement | BGM | 49 min |
| Sep 6, 4:47 PM EDT | Severe Thunderstorm Warning | BGM | 58 min |
| Sep 6, 5:52 PM EDT | Severe Thunderstorm Warning | BGM | 53 min |
| Sep 6, 6:45 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Sep 6, 7:02 PM EDT | Severe Thunderstorm Warning | BGM | 58 min |
| Sep 8, 8:42 AM EDT | Mesoscale Discussion | SPC | 93 min |
| Sep 8, 11:38 AM EDT | Mesoscale Discussion | SPC | 97 min |
| Sep 8, 12:14 PM EDT | Special Weather Statement | BGM | 61 min |
| Sep 8, 12:23 PM EDT | Severe Thunderstorm Warning | BGM | 67 min |
| Sep 8, 12:40 PM EDT | Tornado Watch | SPC | 7 hr |
| Sep 8, 12:41 PM EDT | Special Weather Statement | BGM | 64 min |
| Sep 8, 1:28 PM EDT | Special Weather Statement | BGM | 32 min |
| Sep 14, 5:33 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Sep 17, 2:33 PM EDT | High Wind Watch | BGM | 14 hr |
| Sep 18, 4:03 AM EDT | Wind Advisory | BGM | 16 hr |
| Sep 18, 12:57 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Sep 18, 1:21 PM EDT | Tornado Watch | SPC | 5 hr |
| Sep 18, 1:28 PM EDT | Severe Thunderstorm Warning | BGM | 62 min |
| Sep 18, 2:01 PM EDT | Severe Thunderstorm Warning | BGM | 59 min |
| Oct 7, 3:03 PM EDT | Frost Advisory | BGM | 17 hr |
| Oct 8, 4:14 AM EDT | Frost Advisory | BGM | 26 hr |
| Oct 11, 2:36 PM EDT | Freeze Watch | BGM | 13 hr |
| Oct 12, 3:40 AM EDT | Freeze Warning | BGM | 29 hr |
| Oct 19, 4:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Oct 27, 3:12 PM EDT | High Wind Watch | BGM | 13 hr |
| Oct 27, 3:37 PM EDT | Flood Watch | BGM | 67 hr |
| Oct 28, 4:19 AM EDT | High Wind Warning | BGM | 48 hr |
| Oct 30, 4:07 AM EDT | Wind Advisory | BGM | 11 hr |
| Nov 23, 2:34 PM EST | Lake Effect Snow Advisory | BGM | 36 hr |
| Dec 20, 2:13 PM EST | Wind Advisory | BGM | 17 hr |
| Dec 21, 3:34 PM EST | Winter Weather Advisory | BGM | 28 hr |
| Dec 22, 4:05 AM EST | Winter Storm Warning | BGM | 15 hr |
| Dec 24, 3:24 PM EST | Winter Storm Watch | BGM | 24 hr |
| Dec 25, 11:51 AM EST | Winter Storm Warning | BGM | 49 hr |
| Dec 26, 2:14 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 28, 6:23 PM EST | Winter Weather Advisory | BGM | 27 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 archive20112013
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.