Alert archive / New York / Orleans County
Weather alerts in Orleans County, New York, 2021
90 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Orleans County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 90
- Warnings
- 14
- Watches
- 9
- Advisories
- 26
- Busiest month
- July28 alerts
- Busiest day
- July 13, 20216 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Orleans County, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 9 | 8 | 11% | 1 | 100% | 20 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Buffalo, NY: tornado warnings | 2 | 0 | 100% | 1 | 0% | |
| NWS Buffalo, NY: severe thunderstorm warnings | 114 | 76 | 33% | 220 | 93% | 27 min |
| NWS Buffalo, NY: flash flood warnings | 24 | 13 | 46% | 32 | 100% | 85 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 12, 1:20 PM EST | Winter Weather Advisory | BUF | 21 hr |
| Jan 20, 5:51 AM EST | Special Weather Statement | BUF | 54 min |
| Jan 20, 6:47 AM EST | Special Weather Statement | BUF | 88 min |
| Jan 22, 3:25 AM EST | Winter Weather Advisory | BUF | 31 hr |
| Jan 25, 3:22 AM EST | Winter Weather Advisory | BUF | 51 hr |
| Jan 26, 11:32 AM EST | Special Weather Statement | BUF | 58 min |
| Jan 28, 3:32 AM EST | Winter Weather Advisory | BUF | 24 hr |
| Jan 29, 5:31 PM EST | Special Weather Statement | BUF | 89 min |
| Jan 29, 6:14 PM EST | Winter Weather Advisory | BUF | 6 hr |
| Feb 1, 3:45 AM EST | Winter Weather Advisory | BUF | 48 hr |
| Feb 4, 1:54 PM EST | Wind Advisory | BUF | 25 hr |
| Feb 4, 2:24 PM EST | Winter Weather Advisory | BUF | 55 hr |
| Feb 13, 2:53 PM EST | Winter Storm Watch | BUF | 24 hr |
| Feb 14, 3:12 PM EST | Winter Storm Warning | BUF | 42 hr |
| Feb 15, 8:06 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 20, 8:42 AM EST | Special Weather Statement | BUF | 63 min |
| Feb 20, 10:04 AM EST | Special Weather Statement | BUF | 56 min |
| Feb 20, 2:17 PM EST | Special Weather Statement | BUF | 58 min |
| Feb 20, 4:14 PM EST | Special Weather Statement | BUF | 2 hr |
| Feb 20, 6:16 PM EST | Special Weather Statement | BUF | 89 min |
| Feb 21, 1:41 PM EST | Winter Weather Advisory | BUF | 33 hr |
| Feb 22, 7:14 AM EST | Special Weather Statement | BUF | 61 min |
| Feb 24, 3:30 AM EST | Wind Advisory | BUF | 17 hr |
| Feb 28, 6:44 PM EST | Wind Advisory | BUF | 30 hr |
| Mar 1, 1:41 PM EST | Snow Squall Warning | BUF | 49 min |
| Mar 11, 8:16 PM EST | Special Weather Statement | BUF | 59 min |
| Mar 24, 3:36 AM EDT | High Wind Watch | BUF | 35 hr |
| Mar 25, 2:12 PM EDT | High Wind Warning | BUF | 26 hr |
| Mar 26, 7:47 AM EDT | Severe Thunderstorm Warning | BUF | 45 min |
| Apr 1, 12:17 PM EDT | Special Weather Statement | BUF | 88 min |
| Apr 1, 1:45 PM EDT | Special Weather Statement | BUF | 60 min |
| Apr 20, 4:13 AM EDT | Winter Weather Advisory | BUF | 35 hr |
| Apr 29, 2:24 PM EDT | Wind Advisory | BUF | 31 hr |
| May 8, 4:11 AM EDT | Frost Advisory | BUF | 27 hr |
| May 10, 1:06 PM EDT | Frost Advisory | BUF | 17 hr |
| May 28, 3:38 AM EDT | Beach Hazards Statement | BUF | 40 hr |
| Jun 8, 4:13 PM EDT | Special Weather Statement | BUF | 47 min |
| Jun 20, 2:44 PM EDT | Wind Advisory | BUF | 25 hr |
| Jun 21, 3:36 AM EDT | Special Weather Statement | BUF | 39 min |
| Jun 21, 4:28 AM EDT | Beach Hazards Statement | BUF | 42 hr |
| Jun 21, 12:31 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 26, 1:36 PM EDT | Heat Advisory | BUF | 30 hr |
| Jun 28, 2:03 PM EDT | Heat Advisory | BUF | 30 hr |
| Jul 1, 9:50 PM EDT | Special Weather Statement | BUF | 40 min |
| Jul 2, 12:38 PM EDT | Special Weather Statement | BUF | 112 min |
| Jul 2, 2:20 PM EDT | Special Weather Statement | BUF | 115 min |
| Jul 5, 9:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 6, 11:32 AM EDT | Severe Thunderstorm Warning | BUF | 43 min |
| Jul 7, 4:38 AM EDT | Beach Hazards Statement | BUF | 17 hr |
| Jul 7, 5:27 AM EDT | Special Weather Statement | BUF | 48 min |
| Jul 8, 2:18 PM EDT | Special Weather Statement | BUF | 42 min |
| Jul 8, 4:13 PM EDT | Severe Thunderstorm Warning | BUF | 32 min |
| Jul 11, 3:46 PM EDT | Beach Hazards Statement | BUF | 12 hr |
| Jul 13, 12:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jul 13, 1:37 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 13, 4:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 13, 6:19 PM EDT | Severe Thunderstorm Warning | BUF | 41 min |
| Jul 13, 6:55 PM EDT | Severe Thunderstorm Warning | BUF | 50 min |
| Jul 13, 7:15 PM EDT | Severe Thunderstorm Warning | BUF | 60 min |
| Jul 16, 2:41 PM EDT | Flash Flood Watch | BUF | 32 hr |
| Jul 17, 4:15 AM EDT | Beach Hazards Statement | BUF | 32 hr |
| Jul 17, 6:12 AM EDT | Areal Flood Warning | BUF | 13 hr |
| Jul 18, 6:21 PM EDT | Special Weather Statement | BUF | 39 min |
| Jul 18, 7:55 PM EDT | Special Weather Statement | BUF | 35 min |
| Jul 20, 1:03 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 20, 3:05 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 20, 4:23 PM EDT | Severe Thunderstorm Warning | BUF | 67 min |
| Jul 20, 5:30 PM EDT | Severe Thunderstorm Warning | BUF | 60 min |
| Jul 20, 5:56 PM EDT | Special Weather Statement | BUF | 34 min |
| Jul 27, 11:12 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 29, 4:17 PM EDT | Beach Hazards Statement | BUF | 30 hr |
| Aug 8, 7:30 PM EDT | Heat Advisory | BUF | 3 days |
| Aug 11, 7:46 AM EDT | Severe Thunderstorm Warning | BUF | 50 min |
| Aug 11, 10:15 PM EDT | Heat Advisory | BUF | 21 hr |
| Aug 24, 1:01 PM EDT | Heat Advisory | BUF | 54 hr |
| Aug 27, 4:16 AM EDT | Beach Hazards Statement | BUF | 24 hr |
| Aug 29, 1:07 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Sep 1, 4:27 AM EDT | Beach Hazards Statement | BUF | 33 hr |
| Sep 5, 4:52 PM EDT | Beach Hazards Statement | BUF | 36 hr |
| Sep 7, 7:26 PM EDT | Special Weather Statement | BUF | 64 min |
| Sep 8, 5:58 AM EDT | Special Weather Statement | BUF | 32 min |
| Nov 22, 12:27 AM EST | Special Weather Statement | BUF | 93 min |
| Dec 1, 1:16 PM EST | Wind Advisory | BUF | 29 hr |
| Dec 3, 2:27 PM EST | High Wind Watch | BUF | 46 hr |
| Dec 5, 3:33 AM EST | Wind Advisory | BUF | 45 hr |
| Dec 9, 3:44 AM EST | High Wind Watch | BUF | 24 hr |
| Dec 10, 3:32 AM EST | High Wind Warning | BUF | 45 hr |
| Dec 15, 3:18 AM EST | Wind Advisory | BUF | 48 hr |
| Dec 22, 6:55 PM EST | Winter Weather Advisory | BUF | 12 hr |
| Dec 27, 3:49 AM EST | Winter Weather Advisory | BUF | 27 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 | 9 |
| Severe Thunderstorm Watch | 4 |
| Mesoscale Discussion | 6 |
| Special Weather Statement | 26 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Watch | 1 |
| Winter | |
| Snow Squall Warning | 1 |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 11 |
| Heat | |
| Heat Advisory | 5 |
| Cold | |
| Frost Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 3 |
| Wind Advisory | 8 |
| Coast and beach | |
| Beach Hazards Statement | 9 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20202022
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.