Alert archive / New York / Niagara County
Weather alerts in Niagara County, New York, 2015
96 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Niagara County and its neighbors
Each county as a circle sized by its count in 2015. Tap one for its archive.
- Alerts
- 96
- Warnings
- 19
- Watches
- 20
- Advisories
- 33
- Busiest month
- February26 alerts
- Busiest day
- June 12, 20154 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Niagara County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 4 | 2 | 50% | 1 | 100% | 15 min |
| Flash flood warnings | 1 | 1 | 0% | 0 |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Buffalo, NY: tornado warnings | 3 | 1 | 67% | 2 | 50% | 4 min |
| NWS Buffalo, NY: severe thunderstorm warnings | 65 | 43 | 34% | 189 | 82% | 21 min |
| NWS Buffalo, NY: flash flood warnings | 31 | 19 | 39% | 83 | 87% | 70 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, 3:53 PM EST | High Wind Watch | BUF | 12 hr |
| Jan 3, 3:31 AM EST | High Wind Warning | BUF | 36 hr |
| Jan 3, 10:49 AM EST | Freezing Rain Advisory | BUF | 11 hr |
| Jan 3, 3:13 PM EST | Wind Advisory | BUF | 31 hr |
| Jan 6, 4:16 AM EST | Wind Chill Advisory | BUF | 54 hr |
| Jan 8, 4:02 AM EST | Lake Effect Snow Warning | BUF | 72 hr |
| Jan 8, 11:22 AM EST | Special Weather Statement | BUF | 53 min |
| Jan 8, 4:04 PM EST | Lake Effect Snow Advisory | BUF | 9 hr |
| Jan 9, 1:06 AM EST | Special Weather Statement | BUF | 84 min |
| Jan 9, 2:32 AM EST | Special Weather Statement | BUF | 88 min |
| Jan 9, 3:46 PM EST | Wind Chill Advisory | BUF | 18 hr |
| Jan 10, 2:11 PM EST | Special Weather Statement | BUF | 79 min |
| Jan 10, 2:40 PM EST | Special Weather Statement | BUF | 50 min |
| Jan 24, 1:18 PM EST | Winter Weather Advisory | BUF | 9 hr |
| Jan 28, 3:31 PM EST | Winter Weather Advisory | BUF | 40 hr |
| Jan 31, 3:47 AM EST | Winter Storm Watch | BUF | 24 hr |
| Jan 31, 2:48 PM EST | Winter Storm Warning | BUF | 52 hr |
| Feb 2, 2:45 PM EST | Wind Chill Advisory | BUF | 19 hr |
| Feb 3, 3:42 PM EST | Winter Weather Advisory | BUF | 36 hr |
| Feb 5, 3:51 AM EST | Wind Chill Advisory | BUF | 28 hr |
| Feb 6, 3:06 PM EST | Winter Storm Watch | BUF | 37 hr |
| Feb 7, 4:08 AM EST | Winter Weather Advisory | BUF | 59 hr |
| Feb 8, 10:01 AM EST | Winter Weather Advisory | BUF | 29 hr |
| Feb 11, 4:05 AM EST | Wind Chill Watch | BUF | 24 hr |
| Feb 11, 4:08 PM EST | Special Weather Statement | BUF | 52 min |
| Feb 11, 4:14 PM EST | Special Weather Statement | BUF | 46 min |
| Feb 12, 3:41 AM EST | Wind Chill Warning | BUF | 32 hr |
| Feb 12, 3:41 AM EST | Wind Chill Advisory | BUF | 12 hr |
| Feb 12, 4:03 PM EST | Wind Chill Watch | BUF | 24 hr |
| Feb 13, 4:58 AM EST | Lake Effect Snow Watch | BUF | 11 hr |
| Feb 13, 3:53 PM EST | Wind Chill Warning | BUF | 66 hr |
| Feb 13, 3:53 PM EST | Winter Storm Warning | BUF | 50 hr |
| Feb 17, 3:00 PM EST | Wind Chill Warning | BUF | 67 hr |
| Feb 18, 3:37 AM EST | Lake Effect Snow Advisory | BUF | 60 hr |
| Feb 18, 5:59 PM EST | Special Weather Statement | BUF | 91 min |
| Feb 18, 7:30 PM EST | Special Weather Statement | BUF | 90 min |
| Feb 18, 7:41 PM EST | Special Weather Statement | BUF | 79 min |
| Feb 18, 9:10 PM EST | Special Weather Statement | BUF | 65 min |
| Feb 20, 9:33 AM EST | Wind Chill Advisory | BUF | 6 hr |
| Feb 21, 3:32 AM EST | Winter Weather Advisory | BUF | 24 hr |
| Feb 21, 3:09 PM EST | Wind Chill Watch | BUF | 23 hr |
| Feb 22, 1:57 PM EST | Wind Chill Warning | BUF | 43 hr |
| Feb 22, 1:57 PM EST | Wind Chill Advisory | BUF | 43 hr |
| Mar 2, 12:48 PM EST | Winter Weather Advisory | BUF | 42 hr |
| Mar 13, 11:50 AM EDT | Flood Watch | BUF | 4 days |
| Mar 28, 1:40 AM EDT | Special Weather Statement | BUF | 65 min |
| Apr 3, 4:09 AM EDT | Dense Fog Advisory | BUF | 5 hr |
| Apr 9, 4:42 AM EDT | High Wind Watch | BUF | 11 hr |
| Apr 9, 3:32 PM EDT | High Wind Warning | BUF | 28 hr |
| Apr 10, 12:03 AM EDT | Special Weather Statement | BUF | 57 min |
| Apr 13, 4:42 AM EDT | Wind Advisory | BUF | 18 hr |
| Apr 20, 3:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 21, 4:38 AM EDT | Wind Advisory | BUF | 15 hr |
| May 11, 2:16 PM EDT | Wind Advisory | BUF | 25 hr |
| May 11, 8:18 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 11, 9:20 PM EDT | Special Weather Statement | BUF | 40 min |
| May 13, 3:51 AM EDT | Frost Advisory | BUF | 28 hr |
| May 22, 4:12 AM EDT | Frost Advisory | BUF | 27 hr |
| May 27, 6:19 PM EDT | Special Weather Statement | BUF | 41 min |
| Jun 10, 7:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 10, 7:20 PM EDT | Severe Thunderstorm Warning | BUF | 34 min |
| Jun 12, 1:26 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jun 12, 2:54 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 12, 3:14 PM EDT | Severe Thunderstorm Warning | BUF | 61 min |
| Jun 12, 3:20 PM EDT | Severe Thunderstorm Warning | BUF | 55 min |
| Jun 15, 2:57 PM EDT | Flash Flood Watch | BUF | 13 hr |
| Jun 23, 3:52 AM EDT | Severe Thunderstorm Warning | BUF | 34 min |
| Jun 26, 4:28 AM EDT | Flood Watch | BUF | 43 hr |
| Jul 6, 6:11 PM EDT | Special Weather Statement | BUF | 49 min |
| Jul 14, 4:10 AM EDT | Flash Flood Watch | BUF | 21 hr |
| Jul 18, 3:43 PM EDT | Flash Flood Watch | BUF | 29 hr |
| Jul 19, 3:18 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 2, 6:35 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Aug 2, 11:37 PM EDT | Special Weather Statement | BUF | 23 min |
| Aug 3, 12:01 AM EDT | Special Weather Statement | BUF | 29 min |
| Aug 15, 12:41 AM EDT | Flash Flood Warning | BUF | 6 hr |
| Aug 19, 4:00 AM EDT | Flash Flood Watch | BUF | 40 hr |
| Oct 15, 10:17 AM EDT | Wind Advisory | BUF | 9 hr |
| Oct 17, 4:01 AM EDT | Freeze Watch | BUF | 10 hr |
| Oct 17, 2:13 PM EDT | Freeze Warning | BUF | 19 hr |
| Oct 27, 4:14 AM EDT | High Wind Watch | BUF | 36 hr |
| Oct 28, 4:00 PM EDT | Wind Advisory | BUF | 31 hr |
| Oct 29, 8:36 AM EDT | High Wind Warning | BUF | 5 hr |
| Nov 6, 10:45 AM EST | Special Weather Statement | BUF | 60 min |
| Nov 6, 11:00 AM EST | Special Weather Statement | BUF | 45 min |
| Nov 10, 3:24 PM EST | High Wind Watch | BUF | 24 hr |
| Nov 11, 3:04 PM EST | High Wind Warning | BUF | 37 hr |
| Nov 12, 2:52 PM EST | Lakeshore Flood Warning | BUF | 7 hr |
| Nov 13, 3:59 AM EST | Wind Advisory | BUF | 12 hr |
| Nov 21, 3:45 AM EST | Wind Advisory | BUF | 6 hr |
| Nov 21, 9:25 AM EST | High Wind Warning | BUF | 14 hr |
| Nov 21, 9:25 AM EST | Wind Advisory | BUF | 21 hr |
| Dec 11, 3:43 AM EST | Wind Advisory | BUF | 15 hr |
| Dec 14, 3:50 AM EST | Wind Advisory | BUF | 26 hr |
| Dec 23, 1:00 PM EST | Wind Advisory | BUF | 27 hr |
| Dec 27, 3:46 PM EST | Winter Weather Advisory | BUF | 54 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.