Alert archive / New York / Genesee County
Weather alerts in Genesee County, New York, 2023
68 weather alerts in 2023, 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 2023. Tap one for its archive.
- Alerts
- 68
- Warnings
- 15
- Watches
- 6
- Advisories
- 22
- Busiest month
- July15 alerts
- Busiest day
- April 1, 20235 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, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 8 | 7 | 13% | 1 | 100% | 39 min |
| Flash flood warnings | 1 | 1 | 0% | 1 | 100% | 37 min |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Buffalo, NY: tornado warnings | 5 | 3 | 40% | 4 | 75% | 23 min |
| NWS Buffalo, NY: severe thunderstorm warnings | 78 | 54 | 31% | 215 | 96% | 26 min |
| NWS Buffalo, NY: flash flood warnings | 16 | 13 | 19% | 45 | 100% | 83 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, 2:59 PM EST | Winter Weather Advisory | BUF | 32 hr |
| Jan 18, 2:50 PM EST | Winter Weather Advisory | BUF | 55 hr |
| Jan 24, 2:44 PM EST | Winter Storm Warning | BUF | 51 hr |
| Jan 24, 2:44 PM EST | Winter Weather Advisory | BUF | 64 hr |
| Feb 2, 3:47 AM EST | Wind Chill Advisory | BUF | 54 hr |
| Feb 2, 8:36 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 2, 8:59 PM EST | Snow Squall Warning | BUF | 61 min |
| Feb 7, 3:03 PM EST | High Wind Watch | BUF | 23 hr |
| Feb 8, 2:26 PM EST | High Wind Warning | BUF | 41 hr |
| Feb 14, 1:53 PM EST | Wind Advisory | BUF | 29 hr |
| Feb 15, 3:58 AM EST | High Wind Warning | BUF | 15 hr |
| Feb 16, 3:48 AM EST | Winter Weather Advisory | BUF | 33 hr |
| Feb 21, 2:23 PM EST | Winter Weather Advisory | BUF | 58 hr |
| Feb 27, 3:22 AM EST | Winter Weather Advisory | BUF | 35 hr |
| Mar 3, 3:31 AM EST | Winter Weather Advisory | BUF | 33 hr |
| Mar 9, 3:12 AM EST | Winter Weather Advisory | BUF | 50 hr |
| Mar 10, 1:43 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Mar 10, 2:19 PM EST | Special Weather Statement | BUF | 71 min |
| Mar 13, 4:01 AM EDT | Winter Weather Advisory | BUF | 48 hr |
| Mar 17, 3:48 PM EDT | Special Weather Statement | BUF | 42 min |
| Mar 23, 3:55 PM EDT | High Wind Watch | BUF | 22 hr |
| Mar 24, 2:02 PM EDT | High Wind Warning | BUF | 38 hr |
| Mar 24, 2:02 PM EDT | Wind Advisory | BUF | 45 hr |
| Mar 29, 4:11 PM EDT | Special Weather Statement | BUF | 79 min |
| Mar 29, 5:05 PM EDT | Mesoscale Discussion | SPC | 4 hr |
| Mar 29, 5:11 PM EDT | Special Weather Statement | BUF | 94 min |
| Mar 31, 1:37 PM EDT | Wind Advisory | BUF | 29 hr |
| Apr 1, 11:15 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 1, 11:59 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 1, 2:02 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Apr 1, 2:26 PM EDT | Severe Thunderstorm Warning | BUF | 79 min |
| Apr 1, 2:52 PM EDT | Severe Thunderstorm Warning | BUF | 53 min |
| Apr 5, 2:08 PM EDT | Severe Thunderstorm Warning | BUF | 37 min |
| Apr 16, 8:09 PM EDT | Severe Thunderstorm Warning | BUF | 51 min |
| Apr 16, 8:35 PM EDT | Severe Thunderstorm Warning | BUF | 55 min |
| May 17, 10:57 AM EDT | Freeze Warning | BUF | 21 hr |
| 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, 2:05 PM EDT | Severe Thunderstorm Warning | BUF | 40 min |
| Jul 1, 1:12 PM EDT | Special Weather Statement | BUF | 33 min |
| Jul 1, 1:35 PM EDT | Special Weather Statement | BUF | 40 min |
| Jul 1, 1:56 PM EDT | Special Weather Statement | BUF | 64 min |
| Jul 5, 1:48 PM EDT | Heat Advisory | BUF | 30 hr |
| Jul 7, 9:46 AM EDT | Special Weather Statement | BUF | 89 min |
| Jul 15, 4:32 PM EDT | Special Weather Statement | BUF | 58 min |
| Jul 20, 4:56 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 20, 6:19 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 20, 8:07 PM EDT | Severe Thunderstorm Warning | BUF | 53 min |
| Jul 20, 8:46 PM EDT | Severe Thunderstorm Warning | BUF | 59 min |
| Jul 26, 7:16 PM EDT | Special Weather Statement | BUF | 89 min |
| Jul 26, 8:26 PM EDT | Special Weather Statement | BUF | 49 min |
| Jul 27, 10:12 AM EDT | Heat Advisory | BUF | 33 hr |
| Jul 29, 7:50 AM EDT | Flood Watch | BUF | 8 hr |
| Jul 29, 1:08 PM EDT | Flash Flood Warning | BUF | 3 hr |
| Aug 6, 10:12 PM EDT | Special Weather Statement | BUF | 63 min |
| Aug 7, 1:42 PM EDT | Special Weather Statement | BUF | 33 min |
| Aug 10, 2:56 PM EDT | Special Weather Statement | BUF | 49 min |
| Aug 15, 7:05 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Aug 17, 11:12 PM EDT | Special Weather Statement | BUF | 63 min |
| Sep 3, 2:17 PM EDT | Heat Advisory | BUF | 29 hr |
| Sep 4, 2:04 PM EDT | Heat Advisory | BUF | 29 hr |
| Sep 5, 3:40 PM EDT | Heat Advisory | BUF | 27 hr |
| Sep 6, 6:21 PM EDT | Special Weather Statement | BUF | 24 min |
| Nov 28, 2:16 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 11, 12:52 PM EST | Wind Advisory | BUF | 29 hr |
| Dec 18, 3:35 AM EST | Winter Weather Advisory | BUF | 33 hr |
| Dec 24, 6:31 PM EST | Dense Fog Advisory | BUF | 9 hr |
| Dec 28, 9:07 AM EST | Dense Fog Advisory | BUF | 22 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 | 8 |
| Severe Thunderstorm Watch | 3 |
| Mesoscale Discussion | 9 |
| Special Weather Statement | 16 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flood Watch | 1 |
| Winter | |
| Snow Squall Warning | 1 |
| Winter Storm Warning | 1 |
| Winter Weather Advisory | 10 |
| Heat | |
| Heat Advisory | 5 |
| Cold | |
| Freeze Warning | 1 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 3 |
| High Wind Watch | 2 |
| Wind Advisory | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
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.