Alert archive / New York / Jefferson County
Weather alerts in Jefferson County, New York, 2010
86 weather alerts in 2010, 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 2010. Tap one for its archive.
- Alerts
- 86
- Warnings
- 23
- Watches
- 15
- Advisories
- 27
- Busiest month
- July20 alerts
- Busiest day
- July 21, 20107 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, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 11 | 8 | 27% | 15 | 87% | 37 min |
| Flash flood warnings | 0 | 1 | 0% |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Buffalo, NY: tornado warnings | 9 | 4 | 56% | 7 | 86% | 30 min |
| NWS Buffalo, NY: severe thunderstorm warnings | 59 | 36 | 39% | 97 | 71% | 26 min |
| NWS Buffalo, NY: flash flood warnings | 14 | 9 | 36% | 16 | 94% | 57 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, 4:57 AM EST | Winter Weather Advisory | BUF | 47 hr |
| Jan 13, 3:32 AM EST | Winter Weather Advisory | BUF | 29 hr |
| Jan 23, 3:20 PM EST | Flood Watch | BUF | 47 hr |
| Jan 25, 3:44 AM EST | Lake Effect Snow Watch | BUF | 25 hr |
| Jan 26, 4:17 AM EST | Lake Effect Snow Warning | BUF | 71 hr |
| Jan 28, 4:17 PM EST | Wind Chill Advisory | BUF | 17 hr |
| Jan 29, 2:07 PM EST | Wind Chill Advisory | BUF | 14 hr |
| Jan 30, 3:22 PM EST | Lake Effect Snow Watch | BUF | 13 hr |
| Jan 31, 3:56 AM EST | Lake Effect Snow Advisory | BUF | 27 hr |
| Jan 31, 12:44 PM EST | Lake Effect Snow Warning | BUF | 14 hr |
| Feb 1, 4:50 PM EST | Lake Effect Snow Advisory | BUF | 6 hr |
| Feb 14, 3:26 AM EST | Lake Effect Snow Advisory | BUF | 33 hr |
| Feb 17, 10:30 PM EST | Winter Weather Advisory | BUF | 11 hr |
| Feb 24, 4:12 AM EST | Winter Storm Watch | BUF | 11 hr |
| Feb 24, 2:42 PM EST | Winter Storm Warning | BUF | 42 hr |
| May 4, 10:53 AM EDT | Mesoscale Discussion | SPC | 97 min |
| May 7, 3:35 AM EDT | High Wind Watch | BUF | 12 hr |
| May 7, 3:24 PM EDT | High Wind Warning | BUF | 31 hr |
| May 8, 4:25 PM EDT | Freeze Watch | BUF | 23 hr |
| May 8, 4:25 PM EDT | Wind Advisory | BUF | 6 hr |
| May 9, 3:34 PM EDT | Freeze Watch | BUF | 24 hr |
| May 9, 3:34 PM EDT | Freeze Warning | BUF | 15 hr |
| May 10, 11:36 AM EDT | Freeze Warning | BUF | 20 hr |
| May 12, 3:00 PM EDT | Frost Advisory | BUF | 15 hr |
| May 26, 8:43 PM EDT | Severe Thunderstorm Warning | BUF | 28 min |
| Jun 28, 8:12 PM EDT | Severe Thunderstorm Warning | BUF | 25 min |
| Jun 28, 8:32 PM EDT | Severe Thunderstorm Warning | BUF | 44 min |
| Jul 9, 4:35 AM EDT | Flash Flood Watch | BUF | 18 hr |
| Jul 9, 5:36 AM EDT | Special Weather Statement | BUF | 69 min |
| Jul 9, 12:44 PM EDT | Special Weather Statement | BUF | 61 min |
| Jul 9, 1:43 PM EDT | Special Weather Statement | BUF | 62 min |
| Jul 17, 3:05 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jul 17, 5:48 PM EDT | Special Weather Statement | BUF | 57 min |
| Jul 20, 1:10 PM EDT | Areal Flood Advisory | BUF | 3 hr |
| Jul 21, 10:43 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 11:27 AM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 21, 1:59 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jul 21, 3:23 PM EDT | Severe Thunderstorm Warning | BUF | 67 min |
| Jul 21, 3:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jul 21, 5:04 PM EDT | Severe Thunderstorm Warning | BUF | 29 min |
| Jul 21, 6:12 PM EDT | Severe Thunderstorm Warning | BUF | 63 min |
| Jul 28, 4:21 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jul 28, 4:50 PM EDT | Special Weather Statement | BUF | 55 min |
| Jul 28, 5:04 PM EDT | Severe Thunderstorm Warning | BUF | 56 min |
| Jul 28, 5:48 PM EDT | Severe Thunderstorm Warning | BUF | 57 min |
| Jul 28, 6:03 PM EDT | Severe Thunderstorm Warning | BUF | 47 min |
| Jul 28, 8:08 PM EDT | Severe Thunderstorm Warning | BUF | 30 min |
| Aug 5, 7:38 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 10, 3:35 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Aug 10, 8:43 PM EDT | Special Weather Statement | BUF | 62 min |
| Aug 16, 5:09 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 16, 5:43 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 16, 7:12 AM EDT | Special Weather Statement | BUF | 78 min |
| Aug 16, 8:40 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 21, 4:18 PM EDT | Flood Watch | BUF | 30 hr |
| Aug 22, 9:14 PM EDT | Areal Flood Advisory | BUF | 8 hr |
| Sep 13, 5:23 PM EDT | Special Weather Statement | BUF | 82 min |
| Sep 13, 6:06 PM EDT | Special Weather Statement | BUF | 54 min |
| Sep 20, 3:18 PM EDT | Frost Advisory | BUF | 17 hr |
| Sep 28, 1:50 PM EDT | Severe Thunderstorm Warning | BUF | 58 min |
| Sep 29, 3:03 AM EDT | Flood Watch | BUF | 51 hr |
| Sep 30, 12:21 PM EDT | Areal Flood Warning | BUF | 16 hr |
| Oct 1, 4:17 AM EDT | Areal Flood Warning | BUF | 3 hr |
| Oct 3, 2:59 PM EDT | Frost Advisory | BUF | 15 hr |
| Oct 9, 3:44 AM EDT | Frost Advisory | BUF | 29 hr |
| Nov 16, 4:08 AM EST | Wind Advisory | BUF | 24 hr |
| Nov 16, 3:18 PM EST | Wind Advisory | BUF | 32 hr |
| Nov 24, 3:48 PM EST | Lake Effect Snow Watch | BUF | 24 hr |
| Nov 25, 3:54 AM EST | Lake Effect Snow Warning | BUF | 59 hr |
| Nov 27, 12:16 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Nov 29, 2:56 PM EST | Flood Watch | BUF | 45 hr |
| Nov 30, 3:55 AM EST | Wind Advisory | BUF | 30 hr |
| Nov 30, 11:41 AM EST | Lake Effect Snow Watch | BUF | 16 hr |
| Dec 1, 4:04 AM EST | Lake Effect Snow Warning | BUF | 57 hr |
| Dec 1, 9:39 AM EST | Areal Flood Advisory | BUF | 7 hr |
| Dec 2, 12:53 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 5, 3:55 AM EST | Lake Effect Snow Warning | BUF | 4 days |
| Dec 6, 3:42 PM EST | Winter Weather Advisory | BUF | 11 hr |
| Dec 10, 2:46 PM EST | Winter Weather Advisory | BUF | 13 hr |
| Dec 11, 9:39 PM EST | Winter Weather Advisory | BUF | 12 hr |
| Dec 12, 3:41 AM EST | Wind Advisory | BUF | 12 hr |
| Dec 12, 3:28 PM EST | Lake Effect Snow Warning | BUF | 5 days |
| Dec 13, 4:20 AM EST | Lake Effect Snow Advisory | BUF | 48 hr |
| Dec 15, 3:40 PM EST | Lake Effect Snow Advisory | BUF | 28 hr |
| Dec 17, 2:16 PM EST | Lake Effect Snow Advisory | BUF | 17 hr |
| Dec 22, 8:06 PM EST | Winter Weather Advisory | BUF | 9 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 archive20092011
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.