Alert archive / New York / Ontario County
Weather alerts in Ontario County, New York, 2012
95 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Ontario County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 95
- Warnings
- 29
- Watches
- 18
- Advisories
- 25
- Busiest month
- April19 alerts
- Busiest day
- May 29, 20125 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Ontario County, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 12 | 11 | 8% | 12 | 92% | 21 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 Buffalo, NY: severe thunderstorm warnings | 88 | 68 | 23% | 225 | 85% | 25 min |
| NWS Buffalo, NY: flash flood warnings | 8 | 4 | 50% | 10 | 90% | 45 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, 4:23 AM EST | Lake Effect Snow Warning | BUF | 59 hr |
| Jan 1, 4:33 AM EST | Wind Advisory | BUF | 23 hr |
| Jan 1, 4:02 PM EST | Lake Effect Snow Watch | BUF | 12 hr |
| Jan 12, 4:35 AM EST | Winter Weather Advisory | BUF | 59 hr |
| Jan 17, 4:15 AM EST | Wind Advisory | BUF | 6 hr |
| Jan 17, 9:57 AM EST | High Wind Warning | BUF | 16 hr |
| Jan 17, 5:37 PM EST | Mesoscale Discussion | SPC | 113 min |
| Jan 17, 6:43 PM EST | Severe Thunderstorm Warning | BUF | 47 min |
| Jan 17, 7:29 PM EST | Special Weather Statement | BUF | 46 min |
| Jan 17, 10:34 PM EST | Wind Advisory | BUF | 4 hr |
| Jan 21, 10:32 PM EST | High Wind Watch | BUF | 17 hr |
| Jan 22, 3:28 PM EST | Wind Advisory | BUF | 38 hr |
| Feb 11, 3:59 PM EST | Lake Effect Snow Advisory | BUF | 24 hr |
| Feb 23, 4:28 PM EST | Winter Weather Advisory | BUF | 11 hr |
| Feb 24, 3:44 AM EST | Wind Advisory | BUF | 7 hr |
| Feb 24, 11:04 AM EST | High Wind Warning | BUF | 13 hr |
| Feb 28, 3:21 PM EST | Winter Weather Advisory | BUF | 48 hr |
| Mar 1, 11:10 AM EST | High Wind Watch | BUF | 17 hr |
| Mar 2, 4:21 AM EST | High Wind Warning | BUF | 39 hr |
| Mar 3, 3:08 PM EST | Wind Advisory | BUF | 4 hr |
| Mar 16, 4:36 PM EDT | Dense Fog Advisory | BUF | 18 hr |
| Mar 18, 5:13 PM EDT | Special Weather Statement | BUF | 62 min |
| Apr 1, 3:36 PM EDT | Freeze Watch | BUF | 12 hr |
| Apr 2, 3:39 AM EDT | Freeze Warning | BUF | 29 hr |
| Apr 4, 3:29 AM EDT | Freeze Watch | BUF | 8 hr |
| Apr 4, 11:23 AM EDT | Freeze Warning | BUF | 22 hr |
| Apr 5, 11:04 AM EDT | Freeze Warning | BUF | 22 hr |
| Apr 6, 12:09 PM EDT | Freeze Warning | BUF | 21 hr |
| Apr 7, 11:31 AM EDT | Freeze Warning | BUF | 21 hr |
| Apr 9, 3:55 AM EDT | Wind Advisory | BUF | 14 hr |
| Apr 12, 4:32 AM EDT | Freeze Watch | BUF | 7 hr |
| Apr 12, 11:35 AM EDT | Freeze Warning | BUF | 21 hr |
| Apr 16, 1:33 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Apr 17, 4:00 AM EDT | Freeze Watch | BUF | 9 hr |
| Apr 17, 12:53 PM EDT | Freeze Warning | BUF | 20 hr |
| Apr 21, 3:30 PM EDT | Winter Storm Watch | BUF | 24 hr |
| Apr 22, 3:53 PM EDT | Winter Weather Advisory | BUF | 18 hr |
| Apr 27, 3:06 AM EDT | Freeze Watch | BUF | 7 hr |
| Apr 27, 9:57 AM EDT | Freeze Warning | BUF | 23 hr |
| Apr 28, 12:37 PM EDT | Hard Freeze Warning | BUF | 21 hr |
| Apr 29, 12:37 PM EDT | Freeze Warning | BUF | 20 hr |
| May 3, 10:43 PM EDT | Severe Thunderstorm Warning | BUF | 62 min |
| May 3, 11:22 PM EDT | Severe Thunderstorm Warning | BUF | 37 min |
| May 22, 2:16 PM EDT | Special Weather Statement | BUF | 59 min |
| May 25, 3:08 PM EDT | Mesoscale Discussion | SPC | 97 min |
| May 29, 10:27 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 29, 12:13 PM EDT | Severe Thunderstorm Warning | BUF | 62 min |
| May 29, 12:47 PM EDT | Severe Thunderstorm Warning | BUF | 58 min |
| May 29, 12:49 PM EDT | Severe Thunderstorm Warning | BUF | 41 min |
| May 29, 1:25 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Jun 19, 3:44 PM EDT | Heat Advisory | BUF | 28 hr |
| Jul 6, 3:50 AM EDT | Heat Advisory | BUF | 15 hr |
| Jul 7, 10:06 AM EDT | Special Weather Statement | BUF | 54 min |
| Jul 15, 8:36 AM EDT | Special Weather Statement | BUF | 54 min |
| Jul 15, 8:51 AM EDT | Areal Flood Advisory | BUF | 2 hr |
| Jul 15, 9:04 AM EDT | Special Weather Statement | BUF | 26 min |
| Jul 15, 9:05 AM EDT | Special Weather Statement | BUF | 25 min |
| Jul 17, 11:55 AM EDT | Heat Advisory | BUF | 6 hr |
| Jul 23, 8:39 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jul 26, 1:15 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 26, 4:31 AM EDT | Mesoscale Discussion | SPC | 89 min |
| Aug 4, 3:54 AM EDT | Heat Advisory | BUF | 16 hr |
| Aug 5, 12:06 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Aug 5, 12:42 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 5, 2:57 PM EDT | Severe Thunderstorm Warning | BUF | 33 min |
| Aug 8, 4:36 PM EDT | Special Weather Statement | BUF | 54 min |
| Aug 8, 7:00 PM EDT | Special Weather Statement | BUF | 60 min |
| Aug 10, 5:47 PM EDT | Special Weather Statement | BUF | 58 min |
| Aug 10, 8:36 PM EDT | Special Weather Statement | BUF | 39 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 7, 7:10 PM EDT | Severe Thunderstorm Warning | BUF | 41 min |
| Sep 8, 10:03 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Sep 8, 10:33 AM EDT | Severe Thunderstorm Warning | BUF | 57 min |
| Sep 8, 10:55 AM EDT | Severe Thunderstorm Warning | BUF | 80 min |
| Sep 8, 11:20 AM EDT | Severe Thunderstorm Warning | BUF | 70 min |
| Sep 14, 5:05 PM EDT | Special Weather Statement | BUF | 55 min |
| Sep 14, 5:33 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Sep 14, 5:40 PM EDT | Severe Thunderstorm Warning | BUF | 50 min |
| Oct 7, 3:38 PM EDT | Frost Advisory | BUF | 13 hr |
| Oct 8, 4:16 AM EDT | Freeze Watch | BUF | 11 hr |
| Oct 8, 3:14 PM EDT | Frost Advisory | BUF | 18 hr |
| Oct 11, 2:49 PM EDT | Freeze Watch | BUF | 13 hr |
| Oct 12, 3:28 AM EDT | Freeze Warning | BUF | 30 hr |
| Oct 27, 4:02 PM EDT | Flood Watch | BUF | 68 hr |
| Oct 27, 4:09 PM EDT | High Wind Watch | BUF | 12 hr |
| Oct 28, 4:12 AM EDT | High Wind Warning | BUF | 51 hr |
| Oct 29, 6:15 PM EDT | Areal Flood Advisory | BUF | 3 hr |
| Dec 19, 3:24 PM EST | Wind Advisory | BUF | 37 hr |
| Dec 20, 1:08 PM EST | Winter Weather Advisory | BUF | 50 hr |
| Dec 21, 12:49 PM EST | Wind Advisory | BUF | 27 hr |
| Dec 24, 3:41 PM EST | Winter Storm Watch | BUF | 20 hr |
| Dec 25, 11:15 AM EST | Winter Storm Warning | BUF | 50 hr |
| Dec 26, 2:14 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 28, 10:44 PM EST | Winter Weather Advisory | BUF | 23 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 | 12 |
| Severe Thunderstorm Watch | 4 |
| Mesoscale Discussion | 11 |
| Special Weather Statement | 12 |
| Flooding | |
| Flood Watch | 1 |
| Areal Flood Advisory | 2 |
| Winter | |
| Lake Effect Snow Warning | 1 |
| Winter Storm Warning | 1 |
| Lake Effect Snow Watch | 1 |
| Winter Storm Watch | 2 |
| Lake Effect Snow Advisory | 1 |
| Winter Weather Advisory | 6 |
| Heat | |
| Heat Advisory | 4 |
| Cold | |
| Freeze Warning | 10 |
| Hard Freeze Warning | 1 |
| Freeze Watch | 7 |
| Frost Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 4 |
| High Wind Watch | 3 |
| Wind Advisory | 9 |
| 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 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.