Alert archive / New York / Jefferson County
Weather alerts in Jefferson County, New York, 2016
113 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Jefferson County and its neighbors
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Alerts
- 113
- Warnings
- 29
- Watches
- 17
- Advisories
- 30
- Busiest month
- December24 alerts
- Busiest day
- June 21, 20165 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Jefferson County, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 14 | 8 | 43% | 12 | 92% | 25 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Buffalo, NY: tornado warnings | 4 | 0 | 100% | 0 | ||
| NWS Buffalo, NY: severe thunderstorm warnings | 87 | 56 | 36% | 162 | 83% | 27 min |
| NWS Buffalo, NY: flash flood warnings | 9 | 4 | 56% | 11 | 64% | 55 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, 3:31 PM EST | Lake Effect Snow Warning | BUF | 36 hr |
| Jan 8, 3:39 PM EST | High Wind Watch | BUF | 21 hr |
| Jan 9, 12:40 PM EST | High Wind Warning | BUF | 39 hr |
| Jan 9, 3:18 PM EST | Lake Effect Snow Watch | BUF | 12 hr |
| Jan 9, 10:02 PM EST | Lake Effect Snow Warning | BUF | 54 hr |
| Jan 11, 3:19 PM EST | Lake Effect Snow Warning | BUF | 3 days |
| Jan 11, 10:34 PM EST | Special Weather Statement | BUF | 116 min |
| Jan 12, 12:55 AM EST | Special Weather Statement | BUF | 110 min |
| Jan 12, 2:57 PM EST | Special Weather Statement | BUF | 108 min |
| Jan 14, 1:26 AM EST | Special Weather Statement | BUF | 79 min |
| Jan 15, 3:41 AM EST | Freezing Rain Advisory | BUF | 12 hr |
| Jan 15, 3:48 PM EST | Winter Weather Advisory | BUF | 18 hr |
| Jan 16, 4:00 AM EST | Lake Effect Snow Watch | BUF | 11 hr |
| Jan 16, 3:09 PM EST | Lake Effect Snow Warning | BUF | 3 days |
| Jan 25, 9:34 PM EST | Freezing Rain Advisory | BUF | 12 hr |
| Jan 26, 9:24 PM EST | Lake Effect Snow Advisory | BUF | 12 hr |
| Jan 27, 5:56 AM EST | Lake Effect Snow Warning | BUF | 4 hr |
| Feb 1, 3:31 PM EST | Wind Advisory | BUF | 45 hr |
| Feb 9, 3:38 PM EST | Lake Effect Snow Warning | BUF | 3 days |
| Feb 10, 4:00 AM EST | Lake Effect Snow Advisory | BUF | 12 hr |
| Feb 10, 3:57 PM EST | Lake Effect Snow Watch | BUF | 24 hr |
| Feb 11, 10:00 AM EST | Wind Chill Watch | BUF | 18 hr |
| Feb 12, 3:46 AM EST | Wind Chill Warning | BUF | 57 hr |
| Feb 12, 6:20 PM EST | Special Weather Statement | BUF | 115 min |
| Feb 12, 8:19 PM EST | Special Weather Statement | BUF | 116 min |
| Feb 14, 3:25 PM EST | Winter Storm Watch | BUF | 21 hr |
| Feb 15, 3:34 AM EST | Winter Storm Warning | BUF | 41 hr |
| Feb 15, 12:48 PM EST | Flood Watch | BUF | 27 hr |
| Feb 18, 3:37 PM EST | Winter Weather Advisory | BUF | 36 hr |
| Feb 19, 3:19 AM EST | Wind Advisory | BUF | 24 hr |
| Feb 23, 3:49 AM EST | Winter Weather Advisory | BUF | 39 hr |
| Feb 24, 6:46 PM EST | Flood Watch | BUF | 15 hr |
| Feb 24, 8:36 PM EST | Areal Flood Warning | BUF | 6 hr |
| Feb 26, 12:38 PM EST | Wind Advisory | BUF | 30 hr |
| Feb 29, 3:45 PM EST | Winter Storm Watch | BUF | 12 hr |
| Mar 1, 3:41 AM EST | Winter Weather Advisory | BUF | 33 hr |
| Mar 22, 2:36 PM EDT | Winter Weather Advisory | BUF | 49 hr |
| Mar 25, 2:10 AM EDT | Freezing Rain Advisory | BUF | 5 hr |
| Mar 27, 8:47 PM EDT | Wind Advisory | BUF | 29 hr |
| May 10, 1:37 PM EDT | Frost Advisory | BUF | 18 hr |
| Jun 6, 4:22 AM EDT | Beach Hazards Statement | BUF | 14 hr |
| Jun 7, 4:30 AM EDT | Beach Hazards Statement | BUF | 66 hr |
| Jun 11, 8:34 AM EDT | Severe Thunderstorm Warning | BUF | 56 min |
| Jun 12, 4:03 AM EDT | Beach Hazards Statement | BUF | 17 hr |
| Jun 20, 6:50 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jun 20, 7:46 PM EDT | Severe Thunderstorm Warning | BUF | 59 min |
| Jun 20, 8:06 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 20, 9:04 PM EDT | Severe Thunderstorm Warning | BUF | 56 min |
| Jun 20, 9:43 PM EDT | Severe Thunderstorm Warning | BUF | 62 min |
| Jun 20, 9:53 PM EDT | Severe Thunderstorm Warning | BUF | 37 min |
| Jun 20, 10:26 PM EDT | Severe Thunderstorm Warning | BUF | 64 min |
| Jul 1, 11:57 AM EDT | Special Weather Statement | BUF | 63 min |
| Jul 2, 1:36 AM EDT | Beach Hazards Statement | BUF | 21 hr |
| Jul 18, 4:20 AM EDT | Beach Hazards Statement | BUF | 18 hr |
| Jul 18, 11:12 AM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 18, 2:24 PM EDT | Special Weather Statement | BUF | 36 min |
| Jul 18, 3:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 23, 4:59 PM EDT | Severe Thunderstorm Warning | BUF | 21 min |
| Aug 6, 4:27 PM EDT | Beach Hazards Statement | BUF | 6 hr |
| Aug 12, 4:41 AM EDT | Flash Flood Watch | BUF | 45 hr |
| Aug 13, 8:11 AM EDT | Special Weather Statement | BUF | 34 min |
| Aug 13, 3:23 PM EDT | Severe Thunderstorm Warning | BUF | 67 min |
| Aug 13, 10:33 PM EDT | Beach Hazards Statement | BUF | 21 hr |
| Aug 16, 5:15 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 16, 5:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 16, 9:28 PM EDT | Beach Hazards Statement | BUF | 13 hr |
| Aug 20, 9:50 PM EDT | Beach Hazards Statement | BUF | 24 hr |
| Aug 31, 6:05 AM EDT | Special Weather Statement | BUF | 55 min |
| Aug 31, 4:35 PM EDT | Special Weather Statement | BUF | 55 min |
| Aug 31, 8:22 PM EDT | Special Weather Statement | BUF | 38 min |
| Sep 10, 10:18 AM EDT | Beach Hazards Statement | BUF | 39 hr |
| Sep 10, 2:35 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 10, 8:14 PM EDT | Severe Thunderstorm Warning | BUF | 28 min |
| Sep 10, 11:36 PM EDT | Severe Thunderstorm Warning | BUF | 24 min |
| Sep 10, 11:42 PM EDT | Severe Thunderstorm Warning | BUF | 48 min |
| Sep 11, 12:23 AM EDT | Severe Thunderstorm Warning | BUF | 52 min |
| Sep 16, 10:21 PM EDT | Beach Hazards Statement | BUF | 25 hr |
| Sep 24, 3:54 AM EDT | Frost Advisory | BUF | 29 hr |
| Sep 25, 10:29 AM EDT | Frost Advisory | BUF | 21 hr |
| Oct 9, 3:48 AM EDT | Frost Advisory | BUF | 29 hr |
| Oct 10, 3:55 AM EDT | Freeze Warning | BUF | 29 hr |
| Oct 17, 1:21 PM EDT | Wind Advisory | BUF | 30 hr |
| Oct 17, 6:42 PM EDT | Severe Thunderstorm Warning | BUF | 63 min |
| Oct 17, 6:55 PM EDT | Severe Thunderstorm Warning | BUF | 65 min |
| Oct 17, 7:11 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Oct 20, 4:05 PM EDT | Flash Flood Watch | BUF | 23 hr |
| Nov 18, 2:31 PM EST | Lake Effect Snow Watch | BUF | 13 hr |
| Nov 18, 2:31 PM EST | Lake Effect Snow Warning | BUF | 4 days |
| Nov 21, 1:45 PM EST | Special Weather Statement | BUF | 3 hr |
| Dec 4, 7:45 PM EST | Winter Weather Advisory | BUF | 17 hr |
| Dec 6, 4:07 AM EST | Lake Effect Snow Watch | BUF | 9 hr |
| Dec 6, 1:10 PM EST | Lake Effect Snow Warning | BUF | 5 days |
| Dec 8, 3:59 AM EST | Lake Effect Snow Advisory | BUF | 3 days |
| Dec 8, 4:23 AM EST | Special Weather Statement | BUF | 112 min |
| Dec 8, 6:24 AM EST | Special Weather Statement | BUF | 111 min |
| Dec 8, 10:53 AM EST | Special Weather Statement | BUF | 52 min |
| Dec 10, 2:49 PM EST | Winter Weather Advisory | BUF | 43 hr |
| Dec 12, 11:30 AM EST | Lake Effect Snow Watch | BUF | 24 hr |
| Dec 13, 11:58 AM EST | Lake Effect Snow Warning | BUF | 66 hr |
| Dec 14, 8:10 PM EST | Special Weather Statement | BUF | 110 min |
| Dec 14, 10:05 PM EST | Special Weather Statement | BUF | 25 min |
| Dec 14, 10:07 PM EST | Special Weather Statement | BUF | 113 min |
| Dec 14, 10:56 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 15, 4:02 AM EST | Wind Chill Advisory | BUF | 23 hr |
| Dec 16, 3:22 AM EST | Winter Weather Advisory | BUF | 57 hr |
| Dec 16, 3:44 PM EST | Lake Effect Snow Advisory | BUF | 8 hr |
| Dec 16, 4:08 PM EST | Special Weather Statement | BUF | 52 min |
| Dec 22, 9:50 AM EST | Winter Weather Advisory | BUF | 9 hr |
| Dec 25, 12:51 PM EST | Freezing Rain Advisory | BUF | 30 hr |
| Dec 27, 11:50 PM EST | Winter Weather Advisory | BUF | 4 hr |
| Dec 28, 2:53 PM EST | Lake Effect Snow Warning | BUF | 61 hr |
| Dec 28, 2:53 PM EST | Winter Weather Advisory | BUF | 24 hr |
| Dec 31, 4:10 AM EST | Winter Weather Advisory | BUF | 23 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 archive20152017
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.