Alert archive / New York / Genesee County
Weather alerts in Genesee County, New York, 2011
107 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Genesee County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 107
- Warnings
- 24
- Watches
- 21
- Advisories
- 31
- Busiest month
- August17 alerts
- Busiest day
- August 1, 20118 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Genesee County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 15 | 7 | 53% | 0 | ||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Buffalo, NY: tornado warnings | 13 | 2 | 85% | 2 | 100% | 9 min |
| NWS Buffalo, NY: severe thunderstorm warnings | 106 | 55 | 48% | 151 | 81% | 23 min |
| NWS Buffalo, NY: flash flood warnings | 23 | 10 | 57% | 23 | 91% | 63 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 10, 3:26 PM EST | Winter Weather Advisory | BUF | 49 hr |
| Jan 18, 3:23 AM EST | Winter Weather Advisory | BUF | 8 hr |
| Jan 19, 4:30 AM EST | Winter Weather Advisory | BUF | 10 hr |
| Jan 23, 10:15 AM EST | Wind Chill Advisory | BUF | 23 hr |
| Jan 31, 4:11 AM EST | Winter Storm Watch | BUF | 12 hr |
| Jan 31, 3:50 PM EST | Winter Storm Warning | BUF | 42 hr |
| Feb 2, 4:12 AM EST | Winter Weather Advisory | BUF | 23 hr |
| Feb 5, 4:07 AM EST | Winter Weather Advisory | BUF | 23 hr |
| Feb 13, 3:45 PM EST | Wind Advisory | BUF | 23 hr |
| Feb 18, 4:37 AM EST | Wind Advisory | BUF | 35 hr |
| Feb 20, 4:06 AM EST | Winter Weather Advisory | BUF | 27 hr |
| Feb 20, 11:50 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 23, 3:30 PM EST | Winter Storm Watch | BUF | 22 hr |
| Feb 24, 1:26 PM EST | Winter Storm Warning | BUF | 28 hr |
| Feb 25, 2:46 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 27, 2:47 PM EST | Flood Watch | BUF | 30 hr |
| Mar 4, 3:45 AM EST | Flood Watch | BUF | 47 hr |
| Mar 5, 11:52 AM EST | Winter Storm Watch | BUF | 10 hr |
| Mar 5, 9:28 PM EST | Winter Weather Advisory | BUF | 13 hr |
| Mar 9, 11:41 AM EST | Flood Watch | BUF | 46 hr |
| Mar 22, 4:02 PM EDT | Winter Weather Advisory | BUF | 30 hr |
| Mar 23, 3:32 AM EDT | Mesoscale Discussion | SPC | 4 hr |
| Apr 3, 3:55 PM EDT | Flood Watch | BUF | 30 hr |
| Apr 7, 5:04 AM EDT | Dense Fog Advisory | BUF | 4 hr |
| Apr 15, 3:47 PM EDT | Wind Advisory | BUF | 30 hr |
| Apr 16, 4:36 AM EDT | High Wind Watch | BUF | 11 hr |
| Apr 16, 3:33 PM EDT | Wind Advisory | BUF | 12 hr |
| Apr 17, 3:36 AM EDT | High Wind Warning | BUF | 14 hr |
| Apr 25, 3:54 AM EDT | Flood Watch | BUF | 22 hr |
| Apr 25, 8:36 PM EDT | Areal Flood Advisory | BUF | 6 hr |
| Apr 26, 1:49 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 26, 4:43 PM EDT | Severe Thunderstorm Warning | BUF | 47 min |
| Apr 27, 1:58 PM EDT | Flash Flood Watch | BUF | 22 hr |
| Apr 27, 1:58 PM EDT | Wind Advisory | BUF | 26 hr |
| Apr 27, 3:10 PM EDT | Tornado Watch | SPC | 7 hr |
| Apr 27, 6:11 PM EDT | Special Weather Statement | BUF | 64 min |
| Apr 28, 4:39 AM EDT | High Wind Warning | BUF | 15 hr |
| May 14, 10:06 PM EDT | Areal Flood Advisory | BUF | 3 hr |
| May 15, 1:01 AM EDT | Areal Flood Advisory | BUF | 3 hr |
| May 15, 4:15 AM EDT | Flood Watch | BUF | 23 hr |
| May 16, 12:49 AM EDT | River Flood Warning | BUF | 46 hr |
| May 25, 9:41 PM EDT | Areal Flood Advisory | BUF | 3 hr |
| May 26, 7:03 AM EDT | Special Weather Statement | BUF | 57 min |
| May 26, 7:04 PM EDT | Special Weather Statement | BUF | 56 min |
| May 26, 9:03 PM EDT | Special Weather Statement | BUF | 27 min |
| May 29, 1:02 PM EDT | Mesoscale Discussion | SPC | 58 min |
| May 29, 8:52 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 29, 9:47 PM EDT | Mesoscale Discussion | SPC | 58 min |
| May 29, 10:18 PM EDT | Special Weather Statement | BUF | 57 min |
| May 29, 10:21 PM EDT | Severe Thunderstorm Warning | BUF | 34 min |
| May 29, 10:27 PM EDT | Severe Thunderstorm Warning | BUF | 63 min |
| May 29, 10:41 PM EDT | Severe Thunderstorm Warning | BUF | 50 min |
| Jun 8, 12:22 AM EDT | Mesoscale Discussion | SPC | 83 min |
| Jun 9, 3:29 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 9, 3:56 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 9, 8:13 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 9, 10:36 AM EDT | Mesoscale Discussion | SPC | 84 min |
| Jun 22, 2:14 AM EDT | Special Weather Statement | BUF | 91 min |
| Jun 23, 3:27 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 23, 5:01 PM EDT | Special Weather Statement | BUF | 59 min |
| Jun 28, 1:19 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 6, 3:55 PM EDT | Severe Thunderstorm Warning | BUF | 35 min |
| Jul 18, 3:58 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jul 20, 3:35 AM EDT | Excessive Heat Watch | BUF | 12 hr |
| Jul 20, 3:17 PM EDT | Excessive Heat Warning | BUF | 28 hr |
| Jul 20, 3:17 PM EDT | Heat Advisory | BUF | 28 hr |
| Jul 29, 3:56 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 29, 10:27 AM EDT | Areal Flood Advisory | BUF | 3 hr |
| Aug 1, 3:47 AM EDT | Mesoscale Discussion | SPC | 58 min |
| Aug 1, 3:56 AM EDT | Severe Thunderstorm Warning | BUF | 64 min |
| Aug 1, 4:37 AM EDT | Severe Thunderstorm Warning | BUF | 53 min |
| Aug 1, 4:54 AM EDT | Severe Thunderstorm Warning | BUF | 66 min |
| Aug 1, 5:16 AM EDT | Areal Flood Advisory | BUF | 3 hr |
| Aug 1, 8:01 AM EDT | Mesoscale Discussion | SPC | 89 min |
| Aug 1, 6:12 PM EDT | Special Weather Statement | BUF | 63 min |
| Aug 1, 6:42 PM EDT | Severe Thunderstorm Warning | BUF | 63 min |
| Aug 21, 5:08 AM EDT | Special Weather Statement | BUF | 67 min |
| Aug 21, 11:39 AM EDT | Special Weather Statement | BUF | 66 min |
| Aug 21, 12:09 PM EDT | Severe Thunderstorm Warning | BUF | 51 min |
| Aug 21, 12:27 PM EDT | Special Weather Statement | BUF | 63 min |
| Aug 21, 6:28 PM EDT | Special Weather Statement | BUF | 62 min |
| Aug 24, 9:18 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 24, 10:54 PM EDT | Severe Thunderstorm Warning | BUF | 41 min |
| Aug 24, 11:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Aug 25, 2:31 AM EDT | Mesoscale Discussion | SPC | 119 min |
| Sep 4, 3:07 AM EDT | Mesoscale Discussion | SPC | 83 min |
| Sep 4, 3:26 AM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Sep 4, 4:41 AM EDT | Severe Thunderstorm Warning | BUF | 45 min |
| Sep 4, 10:32 PM EDT | Areal Flood Advisory | BUF | 3 hr |
| Sep 11, 12:43 PM EDT | Special Weather Statement | BUF | 62 min |
| Sep 11, 12:46 PM EDT | Severe Thunderstorm Warning | BUF | 44 min |
| Sep 11, 2:04 PM EDT | Severe Thunderstorm Warning | BUF | 41 min |
| Sep 11, 2:17 PM EDT | Severe Thunderstorm Warning | BUF | 43 min |
| Sep 13, 2:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Oct 5, 3:58 AM EDT | Frost Advisory | BUF | 28 hr |
| Oct 6, 3:25 PM EDT | Frost Advisory | BUF | 16 hr |
| Oct 13, 3:58 PM EDT | High Wind Watch | BUF | 24 hr |
| Oct 14, 3:51 PM EDT | High Wind Warning | BUF | 35 hr |
| Oct 16, 3:55 PM EDT | Wind Advisory | BUF | 27 hr |
| Oct 27, 3:48 AM EDT | Freeze Warning | BUF | 29 hr |
| Nov 22, 10:49 PM EST | Freezing Rain Advisory | BUF | 3 hr |
| Nov 29, 6:10 PM EST | Dense Fog Advisory | BUF | 3 hr |
| Dec 6, 3:24 PM EST | Winter Weather Advisory | BUF | 18 hr |
| Dec 7, 3:30 PM EST | Lake Effect Snow Watch | BUF | 21 hr |
| Dec 8, 12:14 PM EST | Lake Effect Snow Warning | BUF | 34 hr |
| Dec 8, 12:14 PM EST | Lake Effect Snow Advisory | BUF | 58 hr |
| Dec 27, 4:28 AM EST | Winter Weather Advisory | BUF | 45 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 archive20102012
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.