Alert archive / New York / Orleans County
Weather alerts in Orleans County, New York, 2018
86 weather alerts in 2018, 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 2018. Tap one for its archive.
- Alerts
- 86
- Warnings
- 16
- Watches
- 15
- Advisories
- 27
- Busiest month
- September14 alerts
- Busiest day
- May 4, 20185 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, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 3 | 3 | 0% | 0 | ||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Buffalo, NY: tornado warnings | 4 | 0 | 100% | 1 | 0% | |
| NWS Buffalo, NY: severe thunderstorm warnings | 71 | 45 | 37% | 135 | 80% | 23 min |
| NWS Buffalo, NY: flash flood warnings | 17 | 9 | 47% | 39 | 87% | 58 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 1, 2:44 PM EST | Winter Weather Advisory | BUF | 34 hr |
| Jan 1, 4:11 PM EST | Special Weather Statement | BUF | 94 min |
| Jan 3, 3:42 AM EST | Wind Chill Watch | BUF | 24 hr |
| Jan 4, 3:38 AM EST | Lake Effect Snow Warning | BUF | 66 hr |
| Jan 4, 3:38 AM EST | Wind Chill Warning | BUF | 3 days |
| Jan 4, 3:38 AM EST | Winter Weather Advisory | BUF | 63 hr |
| Jan 9, 8:34 PM EST | Flood Watch | BUF | 67 hr |
| Jan 10, 3:03 PM EST | Winter Storm Watch | BUF | 23 hr |
| Jan 11, 2:31 PM EST | Winter Storm Warning | BUF | 45 hr |
| Jan 21, 3:46 AM EST | Flood Watch | BUF | 62 hr |
| Jan 22, 2:35 AM EST | Dense Fog Advisory | BUF | 12 hr |
| Jan 29, 3:30 AM EST | Winter Weather Advisory | BUF | 39 hr |
| Feb 6, 2:55 PM EST | Winter Weather Advisory | BUF | 24 hr |
| Feb 9, 3:35 AM EST | Winter Weather Advisory | BUF | 66 hr |
| Feb 22, 8:41 PM EST | High Wind Watch | BUF | 42 hr |
| Feb 24, 2:58 PM EST | High Wind Warning | BUF | 24 hr |
| Feb 28, 3:53 AM EST | Winter Storm Watch | BUF | 23 hr |
| Mar 1, 3:12 AM EST | Winter Storm Warning | BUF | 42 hr |
| Mar 1, 8:43 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Mar 9, 3:09 PM EST | Special Weather Statement | BUF | 21 min |
| Mar 9, 4:00 PM EST | Special Weather Statement | BUF | 60 min |
| Mar 9, 8:02 PM EST | Special Weather Statement | BUF | 58 min |
| Mar 12, 1:52 PM EDT | Winter Weather Advisory | BUF | 60 hr |
| Mar 30, 4:34 AM EDT | High Wind Watch | BUF | 9 hr |
| Mar 30, 1:47 PM EDT | High Wind Warning | BUF | 36 hr |
| Apr 2, 4:36 AM EDT | High Wind Watch | BUF | 34 hr |
| Apr 3, 4:58 AM EDT | High Wind Warning | BUF | 42 hr |
| Apr 5, 7:18 AM EDT | Special Weather Statement | BUF | 87 min |
| Apr 5, 1:40 PM EDT | Wind Advisory | BUF | 33 hr |
| Apr 13, 4:30 AM EDT | Winter Weather Advisory | BUF | 57 hr |
| Apr 13, 4:33 AM EDT | Lakeshore Flood Watch | BUF | 24 hr |
| Apr 13, 3:04 PM EDT | Flood Watch | BUF | 71 hr |
| Apr 14, 4:15 AM EDT | Ice Storm Warning | BUF | 33 hr |
| Apr 14, 4:22 AM EDT | Lakeshore Flood Warning | BUF | 33 hr |
| Apr 14, 7:55 PM EDT | Mesoscale Discussion | SPC | 5 hr |
| Apr 16, 6:07 PM EDT | Special Weather Statement | BUF | 113 min |
| May 1, 1:04 PM EDT | Wind Advisory | BUF | 30 hr |
| May 4, 3:58 AM EDT | Wind Advisory | BUF | 19 hr |
| May 4, 2:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| May 4, 2:44 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 4, 4:04 PM EDT | High Wind Warning | BUF | 7 hr |
| May 4, 4:10 PM EDT | Severe Thunderstorm Warning | BUF | 35 min |
| Jun 4, 4:45 AM EDT | Beach Hazards Statement | BUF | 18 hr |
| Jun 13, 3:30 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Jun 13, 4:06 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 13, 7:12 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 13, 10:25 PM EDT | Beach Hazards Statement | BUF | 21 hr |
| Jun 17, 1:50 PM EDT | Heat Advisory | BUF | 27 hr |
| Jun 18, 1:33 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 29, 3:33 AM EDT | Heat Advisory | BUF | 4 days |
| Jun 29, 2:10 PM EDT | Excessive Heat Warning | BUF | 3 days |
| Jun 29, 2:10 PM EDT | Heat Advisory | BUF | 14 hr |
| Jul 3, 4:36 PM EDT | Heat Advisory | BUF | 27 hr |
| Jul 4, 2:44 PM EDT | Heat Advisory | BUF | 29 hr |
| Jul 15, 1:31 PM EDT | Heat Advisory | BUF | 30 hr |
| Jul 17, 10:17 PM EDT | Beach Hazards Statement | BUF | 12 hr |
| Jul 21, 9:58 PM EDT | Beach Hazards Statement | BUF | 18 hr |
| Aug 3, 4:08 PM EDT | Special Weather Statement | BUF | 67 min |
| Aug 5, 2:46 PM EDT | Heat Advisory | BUF | 27 hr |
| Aug 6, 3:12 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 16, 5:22 PM EDT | Special Weather Statement | BUF | 23 min |
| Aug 18, 3:09 AM EDT | Areal Flood Warning | BUF | 6 hr |
| Aug 18, 4:37 AM EDT | Beach Hazards Statement | BUF | 9 hr |
| Aug 21, 10:31 PM EDT | Beach Hazards Statement | BUF | 21 hr |
| Aug 26, 2:34 PM EDT | Heat Advisory | BUF | 28 hr |
| Aug 27, 3:44 AM EDT | Heat Advisory | BUF | 63 hr |
| Sep 2, 2:30 PM EDT | Heat Advisory | BUF | 27 hr |
| Sep 3, 3:12 PM EDT | Severe Thunderstorm Warning | BUF | 48 min |
| Sep 4, 1:45 PM EDT | Heat Advisory | BUF | 30 hr |
| Sep 7, 10:48 PM EDT | Beach Hazards Statement | BUF | 20 hr |
| Sep 8, 10:43 PM EDT | Beach Hazards Statement | BUF | 21 hr |
| Sep 9, 9:49 PM EDT | Beach Hazards Statement | BUF | 22 hr |
| Sep 20, 1:38 PM EDT | Wind Advisory | BUF | 29 hr |
| Sep 20, 10:00 PM EDT | Beach Hazards Statement | BUF | 22 hr |
| Sep 21, 4:27 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Sep 21, 4:50 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 21, 5:27 PM EDT | Severe Thunderstorm Warning | BUF | 48 min |
| Sep 21, 10:32 PM EDT | Beach Hazards Statement | BUF | 15 hr |
| Sep 23, 10:40 PM EDT | Beach Hazards Statement | BUF | 17 hr |
| Sep 25, 9:57 PM EDT | Beach Hazards Statement | BUF | 22 hr |
| Oct 31, 1:32 PM EDT | Flood Watch | BUF | 38 hr |
| Nov 5, 3:46 AM EST | Wind Advisory | BUF | 60 hr |
| Nov 14, 2:19 PM EST | Winter Weather Advisory | BUF | 43 hr |
| Nov 21, 8:49 AM EST | Snow Squall Warning | BUF | 26 min |
| Nov 26, 5:53 PM EST | Winter Weather Advisory | BUF | 48 hr |
| Dec 5, 3:53 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.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 3 |
| Severe Thunderstorm Watch | 4 |
| Mesoscale Discussion | 7 |
| Special Weather Statement | 8 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flood Watch | 4 |
| Winter | |
| Ice Storm Warning | 1 |
| Lake Effect Snow Warning | 1 |
| Snow Squall Warning | 1 |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 10 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 11 |
| Cold | |
| Wind Chill Warning | 1 |
| Wind Chill Watch | 1 |
| Wind and dust | |
| High Wind Warning | 4 |
| High Wind Watch | 3 |
| Wind Advisory | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Coast and beach | |
| Lakeshore Flood Warning | 1 |
| Lakeshore Flood Watch | 1 |
| Beach Hazards Statement | 13 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.