Alert archive / New York / Lewis County
Weather alerts in Lewis County, New York, 2016
141 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Lewis County and its neighbors
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Alerts
- 141
- Warnings
- 36
- Watches
- 20
- Advisories
- 28
- Busiest month
- December30 alerts
- Busiest day
- December 15, 201610 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 2 tornado warnings covering Lewis County in 2016 had a tornado report inside them.
Lewis County, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 18 | 8 | 56% | 9 | 56% | 17 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, 7:45 AM EST | Winter Weather Advisory | BUF | 22 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, 3:32 AM EST | Lake Effect Snow Watch | BUF | 12 hr |
| Jan 11, 8:57 AM EST | Special Weather Statement | BUF | 93 min |
| Jan 11, 10:18 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 11, 10:28 AM EST | Special Weather Statement | BUF | 92 min |
| Jan 11, 12:03 PM EST | Special Weather Statement | BUF | 117 min |
| Jan 11, 2:33 PM EST | Special Weather Statement | BUF | 87 min |
| Jan 11, 3:19 PM EST | Lake Effect Snow Warning | BUF | 3 days |
| Jan 11, 3:58 PM EST | Special Weather Statement | BUF | 3 hr |
| Jan 11, 7:25 PM EST | Special Weather Statement | BUF | 110 min |
| Jan 11, 10:34 PM EST | Special Weather Statement | BUF | 116 min |
| Jan 12, 2:57 PM EST | Special Weather Statement | BUF | 108 min |
| Jan 14, 8:58 AM EST | Special Weather Statement | BUF | 107 min |
| Jan 14, 11:56 AM EST | Special Weather Statement | BUF | 94 min |
| Jan 14, 12:14 PM EST | Lake Effect Snow Advisory | BUF | 7 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 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 25, 7:47 PM EST | Areal Flood Advisory | BUF | 10 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 17, 12:48 PM EDT | Special Weather Statement | BUF | 42 min |
| Mar 17, 1:24 PM EDT | Special Weather Statement | BUF | 36 min |
| Mar 22, 2:36 PM EDT | Winter Weather Advisory | BUF | 49 hr |
| Mar 27, 8:47 PM EDT | Wind Advisory | BUF | 29 hr |
| May 10, 1:37 PM EDT | Frost Advisory | BUF | 18 hr |
| May 14, 2:41 PM EDT | Freeze Watch | BUF | 14 hr |
| May 15, 4:19 AM EDT | Freeze Warning | BUF | 28 hr |
| May 17, 7:42 PM EDT | Frost Advisory | BUF | 13 hr |
| May 29, 2:39 PM EDT | Special Weather Statement | BUF | 51 min |
| May 29, 3:37 PM EDT | Special Weather Statement | BUF | 23 min |
| Jun 5, 12:32 PM EDT | Special Weather Statement | BUF | 58 min |
| Jun 5, 1:42 PM EDT | Special Weather Statement | BUF | 33 min |
| Jun 5, 1:48 PM EDT | Special Weather Statement | BUF | 27 min |
| Jun 11, 8:34 AM EDT | Severe Thunderstorm Warning | BUF | 56 min |
| Jun 11, 9:28 AM EDT | Severe Thunderstorm Warning | BUF | 42 min |
| Jun 20, 6:50 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jun 20, 8:06 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 20, 9:43 PM EDT | Severe Thunderstorm Warning | BUF | 62 min |
| Jun 20, 10:26 PM EDT | Severe Thunderstorm Warning | BUF | 64 min |
| Jun 20, 11:04 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Jun 28, 11:41 AM EDT | Special Weather Statement | BUF | 109 min |
| Jun 28, 1:09 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jul 1, 11:57 AM EDT | Special Weather Statement | BUF | 63 min |
| Jul 1, 4:12 PM EDT | Special Weather Statement | BUF | 33 min |
| Jul 1, 7:00 PM EDT | Special Weather Statement | BUF | 30 min |
| Jul 1, 7:26 PM EDT | Severe Thunderstorm Warning | BUF | 64 min |
| Jul 9, 12:05 PM EDT | Special Weather Statement | ALY | 55 min |
| Jul 13, 5:04 PM EDT | Special Weather Statement | BUF | 26 min |
| Jul 18, 10:32 AM EDT | Mesoscale Discussion | SPC | 118 min |
| Jul 18, 11:12 AM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 18, 3:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 23, 3:56 PM EDT | Special Weather Statement | BUF | 34 min |
| Jul 23, 4:59 PM EDT | Severe Thunderstorm Warning | BUF | 21 min |
| Jul 23, 5:31 PM EDT | Special Weather Statement | BUF | 44 min |
| Jul 23, 6:38 PM EDT | Special Weather Statement | BUF | 22 min |
| Jul 23, 6:42 PM EDT | Severe Thunderstorm Warning | BUF | 44 min |
| Aug 1, 3:41 PM EDT | Special Weather Statement | BUF | 64 min |
| Aug 12, 4:41 AM EDT | Flash Flood Watch | BUF | 45 hr |
| Aug 13, 8:50 AM EDT | Special Weather Statement | BUF | 40 min |
| Aug 13, 3:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 13, 3:23 PM EDT | Severe Thunderstorm Warning | BUF | 67 min |
| Aug 13, 4:21 PM EDT | Severe Thunderstorm Warning | BUF | 39 min |
| 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, 6:09 PM EDT | Tornado Warning | BUF | 36 min |
| Aug 16, 6:46 PM EDT | Tornado Warning | BUF | 29 min |
| Sep 8, 1:21 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 8, 2:10 PM EDT | Severe Thunderstorm Warning | BUF | 35 min |
| Sep 8, 2:44 PM EDT | Severe Thunderstorm Warning | BUF | 61 min |
| Sep 10, 2:35 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| 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 11, 1:00 AM EDT | Severe Thunderstorm Warning | BUF | 45 min |
| 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 9, 3:12 PM EDT | Freeze Watch | BUF | 13 hr |
| Oct 10, 3:55 AM EDT | Freeze Warning | BUF | 29 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 17, 7:26 PM EDT | Severe Thunderstorm Warning | BUF | 64 min |
| Oct 17, 8:24 PM EDT | Special Weather Statement | BUF | 36 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, 5:58 AM EST | Special Weather Statement | BUF | 107 min |
| Nov 21, 1:45 PM EST | Special Weather Statement | BUF | 3 hr |
| Dec 2, 5:14 PM EST | Special Weather Statement | BUF | 46 min |
| 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, 10:53 AM EST | Special Weather Statement | BUF | 52 min |
| Dec 8, 8:41 PM EST | Special Weather Statement | BUF | 94 min |
| Dec 10, 2:49 PM EST | Winter Weather Advisory | BUF | 43 hr |
| Dec 12, 12:23 AM EST | Mesoscale Discussion | SPC | 4 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, 12:01 AM EST | Special Weather Statement | BUF | 59 min |
| Dec 15, 12:57 AM EST | Special Weather Statement | BUF | 2 hr |
| Dec 15, 3:10 AM EST | Special Weather Statement | BUF | 2 hr |
| Dec 15, 4:02 AM EST | Wind Chill Advisory | BUF | 23 hr |
| Dec 15, 5:16 AM EST | Special Weather Statement | BUF | 59 min |
| Dec 15, 6:20 AM EST | Special Weather Statement | BUF | 55 min |
| Dec 16, 3:22 AM EST | Winter Weather Advisory | BUF | 57 hr |
| 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, 3:17 PM EST | Lake Effect Snow Advisory | BUF | 22 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 29, 10:32 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 29, 8:14 PM EST | Special Weather Statement | BUF | 61 min |
| 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.