Alert archive / New York / Cattaraugus County
Weather alerts in Cattaraugus County, New York, 2020
130 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Cattaraugus County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 130
- Warnings
- 52
- Watches
- 16
- Advisories
- 19
- Busiest month
- July34 alerts
- Busiest day
- July 16, 202018 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 4 tornado warnings covering Cattaraugus County in 2020 had a tornado report inside them.
Cattaraugus County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 23 | 20 | 13% | 31 | 77% | 23 min |
| Flash flood warnings | 6 | 4 | 33% | 8 | 88% | 73 min |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Buffalo, NY: tornado warnings | 6 | 1 | 83% | 2 | 50% | 3 min |
| NWS Buffalo, NY: severe thunderstorm warnings | 109 | 74 | 32% | 244 | 84% | 28 min |
| NWS Buffalo, NY: flash flood warnings | 17 | 10 | 41% | 31 | 94% | 68 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 7, 1:25 PM EST | Winter Weather Advisory | BUF | 29 hr |
| Jan 8, 8:33 AM EST | Snow Squall Warning | BUF | 57 min |
| Jan 8, 9:32 AM EST | Special Weather Statement | BUF | 58 min |
| Jan 9, 2:17 PM EST | Winter Weather Advisory | BUF | 22 hr |
| Jan 9, 2:22 PM EST | Flood Watch | BUF | 70 hr |
| Jan 10, 1:40 PM EST | High Wind Watch | BUF | 16 hr |
| Jan 11, 5:45 AM EST | High Wind Warning | BUF | 29 hr |
| Jan 15, 5:07 AM EST | Winter Weather Advisory | BUF | 47 hr |
| Jan 16, 9:26 AM EST | Special Weather Statement | BUF | 94 min |
| Jan 17, 1:38 PM EST | Winter Storm Watch | BUF | 23 hr |
| Jan 17, 1:38 PM EST | Winter Weather Advisory | BUF | 36 hr |
| Jan 18, 12:18 PM EST | Lake Effect Snow Warning | BUF | 33 hr |
| Jan 19, 11:59 AM EST | Special Weather Statement | BUF | 61 min |
| Feb 5, 4:17 AM EST | Winter Storm Watch | BUF | 35 hr |
| Feb 5, 4:17 AM EST | Winter Weather Advisory | BUF | 3 days |
| Feb 6, 7:48 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 6, 8:08 PM EST | Special Weather Statement | BUF | 112 min |
| Feb 11, 3:01 PM EST | Winter Weather Advisory | BUF | 43 hr |
| Feb 25, 4:21 AM EST | Winter Storm Watch | BUF | 24 hr |
| Feb 26, 4:27 AM EST | Lake Effect Snow Warning | BUF | 9 hr |
| Feb 26, 12:58 PM EST | Blizzard Warning | BUF | 48 hr |
| Feb 28, 2:55 AM EST | Lake Effect Snow Warning | BUF | 31 hr |
| Mar 3, 4:19 PM EST | Special Weather Statement | BUF | 56 min |
| Mar 20, 1:59 AM EDT | High Wind Warning | BUF | 15 hr |
| Mar 20, 12:53 PM EDT | Special Weather Statement | BUF | 52 min |
| Mar 29, 9:13 AM EDT | Wind Advisory | BUF | 13 hr |
| Mar 29, 10:58 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 29, 12:05 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Mar 29, 1:24 PM EDT | Severe Thunderstorm Warning | BUF | 66 min |
| Apr 7, 11:44 PM EDT | Special Weather Statement | BUF | 46 min |
| Apr 7, 11:53 PM EDT | Severe Thunderstorm Warning | BUF | 38 min |
| Apr 9, 4:34 AM EDT | Winter Weather Advisory | BUF | 33 hr |
| Apr 11, 4:57 AM EDT | High Wind Watch | BUF | 33 hr |
| Apr 11, 4:57 AM EDT | High Wind Warning | BUF | 64 hr |
| Apr 16, 11:05 AM EDT | Special Weather Statement | BUF | 70 min |
| Apr 17, 3:44 AM EDT | Winter Weather Advisory | BUF | 21 hr |
| May 10, 1:48 PM EDT | Freeze Watch | BUF | 14 hr |
| May 11, 3:18 AM EDT | Freeze Warning | BUF | 30 hr |
| May 12, 10:03 AM EDT | Freeze Warning | BUF | 23 hr |
| May 13, 10:48 AM EDT | Freeze Warning | BUF | 20 hr |
| May 15, 1:52 PM EDT | Mesoscale Discussion | SPC | 83 min |
| May 15, 4:38 PM EDT | Special Weather Statement | BUF | 37 min |
| May 20, 4:09 PM EDT | Frost Advisory | BUF | 16 hr |
| May 23, 5:35 AM EDT | Dense Fog Advisory | BUF | 5 hr |
| May 25, 5:42 PM EDT | Special Weather Statement | BUF | 78 min |
| May 29, 10:47 AM EDT | Mesoscale Discussion | SPC | 118 min |
| May 29, 1:58 PM EDT | Special Weather Statement | BUF | 32 min |
| May 29, 2:14 PM EDT | Special Weather Statement | BUF | 61 min |
| May 29, 2:22 PM EDT | Severe Thunderstorm Warning | BUF | 53 min |
| Jun 2, 9:26 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 2, 11:40 PM EDT | Severe Thunderstorm Warning | BUF | 65 min |
| Jun 3, 12:25 AM EDT | Severe Thunderstorm Warning | BUF | 65 min |
| Jun 3, 5:12 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 10, 10:20 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jun 10, 11:44 PM EDT | Severe Thunderstorm Warning | BUF | 47 min |
| Jun 20, 6:42 PM EDT | Special Weather Statement | BUF | 48 min |
| Jun 22, 12:43 PM EDT | Special Weather Statement | BUF | 47 min |
| Jun 22, 1:58 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 22, 3:46 PM EDT | Severe Thunderstorm Warning | BUF | 59 min |
| Jun 22, 4:57 PM EDT | Flash Flood Warning | BUF | 4 hr |
| Jun 22, 5:09 PM EDT | Special Weather Statement | BUF | 66 min |
| Jun 25, 1:32 PM EDT | Special Weather Statement | BUF | 58 min |
| Jun 26, 1:58 PM EDT | Flash Flood Watch | BUF | 17 hr |
| Jul 6, 3:57 PM EDT | Special Weather Statement | BUF | 78 min |
| Jul 6, 4:39 PM EDT | Flash Flood Warning | BUF | 2 hr |
| Jul 7, 4:32 PM EDT | Special Weather Statement | BUF | 73 min |
| Jul 9, 5:12 PM EDT | Special Weather Statement | BUF | 33 min |
| Jul 11, 2:41 PM EDT | Flash Flood Warning | BUF | 4 hr |
| Jul 16, 12:18 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jul 16, 1:20 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 16, 3:51 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 16, 3:52 PM EDT | Severe Thunderstorm Warning | BUF | 53 min |
| Jul 16, 4:07 PM EDT | Tornado Warning | BUF | 38 min |
| Jul 16, 5:12 PM EDT | Special Weather Statement | BUF | 63 min |
| Jul 16, 5:14 PM EDT | Severe Thunderstorm Warning | BUF | 46 min |
| Jul 16, 5:36 PM EDT | Severe Thunderstorm Warning | BUF | 24 min |
| Jul 16, 5:50 PM EDT | Tornado Warning | BUF | 40 min |
| Jul 16, 5:58 PM EDT | Severe Thunderstorm Warning | BUF | 47 min |
| Jul 16, 6:32 PM EDT | Tornado Warning | BUF | 28 min |
| Jul 16, 6:42 PM EDT | Flash Flood Warning | BUF | 3 hr |
| Jul 16, 6:50 PM EDT | Severe Thunderstorm Warning | BUF | 40 min |
| Jul 16, 6:59 PM EDT | Tornado Warning | BUF | 31 min |
| Jul 16, 7:15 PM EDT | Flash Flood Warning | BUF | 4 hr |
| Jul 16, 7:17 PM EDT | Severe Thunderstorm Warning | BUF | 43 min |
| Jul 16, 7:42 PM EDT | Severe Thunderstorm Warning | BUF | 48 min |
| Jul 16, 7:51 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Jul 16, 9:31 PM EDT | Areal Flood Warning | BUF | 3 hr |
| Jul 16, 11:05 PM EDT | Areal Flood Warning | BUF | 3 hr |
| Jul 19, 12:17 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jul 19, 12:53 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 19, 1:57 PM EDT | Special Weather Statement | BUF | 48 min |
| Jul 19, 2:29 PM EDT | Severe Thunderstorm Warning | BUF | 61 min |
| Jul 19, 2:48 PM EDT | Severe Thunderstorm Warning | BUF | 57 min |
| Jul 19, 3:11 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 29, 1:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 29, 2:10 PM EDT | Severe Thunderstorm Warning | BUF | 65 min |
| Jul 29, 2:49 PM EDT | Severe Thunderstorm Warning | BUF | 56 min |
| Aug 15, 6:54 PM EDT | Flash Flood Warning | BUF | 2 hr |
| Aug 17, 8:52 PM EDT | Special Weather Statement | BUF | 68 min |
| Aug 17, 10:03 PM EDT | Special Weather Statement | BUF | 57 min |
| Aug 25, 3:18 AM EDT | Special Weather Statement | BUF | 87 min |
| Aug 25, 3:45 AM EDT | Severe Thunderstorm Warning | BUF | 60 min |
| Aug 25, 12:02 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Aug 27, 2:49 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 27, 4:01 PM EDT | Severe Thunderstorm Warning | BUF | 51 min |
| Aug 27, 4:06 PM EDT | Severe Thunderstorm Warning | BUF | 54 min |
| Aug 27, 5:17 PM EDT | Special Weather Statement | BUF | 28 min |
| Sep 14, 3:33 AM EDT | Frost Advisory | BUF | 29 hr |
| Sep 18, 4:16 AM EDT | Freeze Warning | BUF | 28 hr |
| Sep 19, 2:09 PM EDT | Freeze Warning | BUF | 18 hr |
| Sep 20, 10:38 AM EDT | Frost Advisory | BUF | 22 hr |
| Oct 6, 1:59 PM EDT | Wind Advisory | BUF | 29 hr |
| Oct 21, 6:09 AM EDT | Special Weather Statement | BUF | 81 min |
| Oct 23, 9:13 PM EDT | Special Weather Statement | BUF | 62 min |
| Oct 23, 10:14 PM EDT | Special Weather Statement | BUF | 46 min |
| Nov 1, 2:59 AM EST | Winter Weather Advisory | BUF | 31 hr |
| Nov 2, 2:55 AM EST | Wind Advisory | BUF | 25 hr |
| Nov 14, 3:31 AM EST | High Wind Warning | BUF | 45 hr |
| Nov 14, 3:31 AM EST | Wind Advisory | BUF | 45 hr |
| Nov 15, 1:16 PM EST | Mesoscale Discussion | SPC | 89 min |
| Nov 15, 1:57 PM EST | Severe Thunderstorm Watch | SPC | 4 hr |
| Nov 15, 2:39 PM EST | Severe Thunderstorm Warning | BUF | 51 min |
| Nov 15, 3:24 PM EST | Severe Thunderstorm Warning | BUF | 66 min |
| Nov 22, 3:35 AM EST | Winter Weather Advisory | BUF | 9 hr |
| Nov 29, 2:05 PM EST | Winter Storm Watch | BUF | 14 hr |
| Nov 30, 3:48 AM EST | Winter Storm Warning | BUF | 51 hr |
| Dec 16, 3:00 AM EST | Winter Weather Advisory | BUF | 27 hr |
| Dec 21, 2:18 PM EST | Winter Storm Watch | BUF | 3 days |
| Dec 23, 2:19 PM EST | Lake Effect Snow Warning | BUF | 4 days |
| Dec 23, 2:19 PM EST | Winter Storm Warning | BUF | 61 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 archive20192021
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.