Alert archive / New York / Herkimer County
Weather alerts in Herkimer County, New York, 2023
169 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Herkimer County and its neighbors
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Alerts
- 169
- Warnings
- 40
- Watches
- 23
- Advisories
- 47
- Busiest month
- August42 alerts
- Busiest day
- August 4, 202323 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Herkimer County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 19 | 15 | 21% | 38 | 82% | 25 min |
| Flash flood warnings | 1 | 1 | 0% | 7 | 29% | 27 min |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Albany, NY: tornado warnings | 7 | 0 | 100% | 1 | 0% | |
| NWS Albany, NY: severe thunderstorm warnings | 141 | 101 | 28% | 334 | 78% | 21 min |
| NWS Albany, NY: flash flood warnings | 35 | 23 | 34% | 57 | 79% | 49 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 |
|---|---|---|---|
| Dec 31, 8:31 PM EST | Dense Fog Advisory | ALY | 5 hr |
| Jan 5, 8:16 AM EST | Dense Fog Advisory | ALY | 104 min |
| Jan 5, 10:33 AM EST | Dense Fog Advisory | ALY | 65 min |
| Jan 9, 10:17 PM EST | Winter Weather Advisory | ALY | 3 hr |
| Jan 11, 2:54 PM EST | Winter Weather Advisory | ALY | 34 hr |
| Jan 16, 3:30 PM EST | Winter Weather Advisory | ALY | 40 hr |
| Jan 18, 3:11 PM EST | Winter Weather Advisory | ALY | 51 hr |
| Jan 19, 6:21 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Jan 21, 3:26 PM EST | Winter Weather Advisory | ALY | 50 hr |
| Jan 22, 3:49 AM EST | Winter Storm Warning | ALY | 37 hr |
| Jan 24, 3:27 AM EST | Winter Storm Watch | ALY | 12 hr |
| Jan 24, 3:25 PM EST | Winter Storm Warning | ALY | 43 hr |
| Jan 24, 3:25 PM EST | Winter Weather Advisory | ALY | 48 hr |
| Jan 31, 3:34 PM EST | Wind Chill Watch | ALY | 36 hr |
| Feb 1, 3:09 PM EST | Wind Chill Warning | ALY | 70 hr |
| Feb 2, 9:42 PM EST | Snow Squall Warning | ALY | 63 min |
| Feb 2, 10:39 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 2, 10:49 PM EST | Snow Squall Warning | ALY | 56 min |
| Feb 8, 3:01 PM EST | Winter Weather Advisory | ALY | 30 hr |
| Feb 9, 3:08 PM EST | Wind Advisory | ALY | 23 hr |
| Feb 16, 2:59 AM EST | Winter Weather Advisory | ALY | 36 hr |
| Feb 20, 3:15 AM EST | Winter Weather Advisory | ALY | 41 hr |
| Feb 21, 3:48 AM EST | Winter Storm Watch | ALY | 24 hr |
| Feb 21, 4:40 PM EST | Winter Weather Advisory | ALY | 42 hr |
| Feb 22, 6:25 PM EST | Winter Storm Warning | ALY | 16 hr |
| Feb 22, 8:59 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 23, 3:20 PM EST | Winter Weather Advisory | ALY | 9 hr |
| Feb 23, 6:54 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 26, 3:37 AM EST | Winter Storm Watch | ALY | 24 hr |
| Feb 26, 3:09 PM EST | Winter Weather Advisory | ALY | 48 hr |
| Feb 27, 3:32 AM EST | Winter Storm Warning | ALY | 36 hr |
| Mar 2, 4:01 AM EST | Winter Storm Watch | ALY | 24 hr |
| Mar 2, 3:22 PM EST | Winter Storm Warning | ALY | 48 hr |
| Mar 11, 2:43 PM EST | Winter Storm Watch | ALY | 37 hr |
| Mar 12, 3:58 PM EDT | Winter Storm Warning | ALY | 61 hr |
| Mar 17, 3:16 PM EDT | Winter Weather Advisory | ALY | 46 hr |
| Mar 25, 4:13 AM EDT | Wind Advisory | ALY | 19 hr |
| Mar 29, 5:05 PM EDT | Mesoscale Discussion | SPC | 4 hr |
| Mar 29, 8:07 PM EDT | Special Weather Statement | ALY | 38 min |
| Mar 29, 8:45 PM EDT | Special Weather Statement | ALY | 45 min |
| Apr 1, 5:16 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Apr 6, 12:13 AM EDT | River Flood Warning | ALY | 7 hr |
| Apr 6, 12:41 AM EDT | Areal Flood Advisory | ALY | 2 hr |
| Apr 6, 4:54 PM EDT | Fire Weather Watch | BGM | 14 hr |
| Apr 6, 8:17 PM EDT | Areal Flood Warning | ALY | 12 hr |
| Apr 10, 2:32 PM EDT | Fire Weather Watch | BGM | 12 hr |
| Apr 22, 7:30 PM EDT | Special Weather Statement | ALY | 45 min |
| Apr 22, 7:58 PM EDT | Special Weather Statement | ALY | 47 min |
| May 14, 2:06 PM EDT | Frost Advisory | ALY | 19 hr |
| May 16, 2:38 PM EDT | Freeze Watch | ALY | 21 hr |
| May 17, 11:13 AM EDT | Freeze Warning | ALY | 21 hr |
| May 25, 3:25 AM EDT | Frost Advisory | ALY | 29 hr |
| Jun 2, 3:52 PM EDT | Special Weather Statement | ALY | 23 min |
| Jun 2, 4:22 PM EDT | Severe Thunderstorm Warning | ALY | 38 min |
| Jun 2, 5:31 PM EDT | Special Weather Statement | ALY | 29 min |
| Jun 6, 4:43 PM EDT | Special Weather Statement | ALY | 32 min |
| Jun 16, 3:39 PM EDT | Special Weather Statement | ALY | 36 min |
| Jun 16, 3:52 PM EDT | Special Weather Statement | ALY | 23 min |
| Jun 26, 2:46 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 1, 1:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 1, 5:28 PM EDT | Special Weather Statement | ALY | 47 min |
| Jul 1, 5:30 PM EDT | Special Weather Statement | ALY | 30 min |
| Jul 5, 3:07 PM EDT | Heat Advisory | ALY | 29 hr |
| Jul 7, 1:40 PM EDT | Special Weather Statement | ALY | 35 min |
| Jul 7, 2:02 PM EDT | Severe Thunderstorm Warning | ALY | 28 min |
| Jul 7, 3:58 PM EDT | Severe Thunderstorm Warning | ALY | 47 min |
| Jul 7, 4:22 PM EDT | Areal Flood Advisory | ALY | 72 min |
| Jul 8, 3:17 PM EDT | Flood Watch | ALY | 67 hr |
| Jul 10, 2:33 PM EDT | Areal Flood Advisory | ALY | 3 hr |
| Jul 10, 9:32 PM EDT | Areal Flood Advisory | ALY | 3 hr |
| Jul 11, 8:53 PM EDT | Special Weather Statement | ALY | 37 min |
| Jul 11, 9:40 PM EDT | Special Weather Statement | ALY | 35 min |
| Jul 12, 3:06 PM EDT | Flood Watch | ALY | 57 hr |
| Jul 13, 11:58 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 13, 12:43 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 13, 3:20 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 13, 3:22 PM EDT | Severe Thunderstorm Warning | ALY | 53 min |
| Jul 13, 4:15 PM EDT | Severe Thunderstorm Warning | ALY | 60 min |
| Jul 13, 4:34 PM EDT | Severe Thunderstorm Warning | ALY | 41 min |
| Jul 14, 5:08 PM EDT | Severe Thunderstorm Warning | ALY | 52 min |
| Jul 15, 12:20 AM EDT | Severe Thunderstorm Warning | ALY | 55 min |
| Jul 15, 2:57 AM EDT | Flood Watch | ALY | 49 hr |
| Jul 18, 12:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 1:42 AM EDT | Special Weather Statement | ALY | 63 min |
| Jul 24, 11:58 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 24, 1:06 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 24, 1:20 PM EDT | Special Weather Statement | ALY | 25 min |
| Jul 24, 2:02 PM EDT | Special Weather Statement | ALY | 28 min |
| Jul 24, 2:56 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 24, 5:53 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 26, 3:21 PM EDT | Heat Advisory | ALY | 52 hr |
| Jul 29, 11:20 AM EDT | Special Weather Statement | ALY | 40 min |
| Jul 29, 11:20 AM EDT | Severe Thunderstorm Warning | ALY | 55 min |
| Jul 29, 11:50 AM EDT | Areal Flood Advisory | ALY | 115 min |
| Jul 29, 12:05 PM EDT | Flood Watch | ALY | 8 hr |
| Jul 29, 12:22 PM EDT | Severe Thunderstorm Warning | ALY | 38 min |
| Aug 3, 7:33 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 3, 7:47 PM EDT | Severe Thunderstorm Warning | ALY | 41 min |
| Aug 3, 9:48 PM EDT | Special Weather Statement | ALY | 27 min |
| Aug 3, 10:33 PM EDT | Special Weather Statement | ALY | 42 min |
| Aug 3, 10:50 PM EDT | Special Weather Statement | ALY | 55 min |
| Aug 3, 11:01 PM EDT | Areal Flood Advisory | ALY | 3 hr |
| Aug 3, 11:58 PM EDT | Special Weather Statement | ALY | 47 min |
| Aug 4, 10:01 AM EDT | Severe Thunderstorm Warning | ALY | 59 min |
| Aug 4, 11:21 AM EDT | Mesoscale Discussion | SPC | 114 min |
| Aug 4, 11:49 AM EDT | Special Weather Statement | ALY | 41 min |
| Aug 4, 12:10 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Aug 4, 12:31 PM EDT | Severe Thunderstorm Warning | ALY | 59 min |
| Aug 4, 12:48 PM EDT | Areal Flood Advisory | ALY | 34 min |
| Aug 4, 1:04 PM EDT | Severe Thunderstorm Warning | ALY | 56 min |
| Aug 4, 1:19 PM EDT | Special Weather Statement | ALY | 41 min |
| Aug 4, 1:21 PM EDT | Flash Flood Warning | ALY | 3 hr |
| Aug 4, 1:51 PM EDT | Special Weather Statement | ALY | 39 min |
| Aug 4, 1:55 PM EDT | Severe Thunderstorm Warning | ALY | 65 min |
| Aug 4, 1:58 PM EDT | Severe Thunderstorm Warning | ALY | 62 min |
| Aug 4, 2:19 PM EDT | Areal Flood Advisory | ALY | 49 min |
| Aug 4, 2:50 PM EDT | Areal Flood Advisory | ALY | 2 hr |
| Aug 4, 3:03 PM EDT | Special Weather Statement | ALY | 27 min |
| Aug 4, 3:08 PM EDT | Areal Flood Warning | ALY | 2 hr |
| Aug 4, 3:28 PM EDT | Severe Thunderstorm Warning | ALY | 62 min |
| Aug 4, 4:33 PM EDT | Areal Flood Warning | ALY | 87 min |
| Aug 4, 8:06 PM EDT | Areal Flood Advisory | ALY | 90 min |
| Aug 7, 5:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Aug 7, 6:41 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 7, 8:45 PM EDT | Special Weather Statement | ALY | 45 min |
| Aug 7, 9:31 PM EDT | Special Weather Statement | ALY | 44 min |
| Aug 7, 11:48 PM EDT | Areal Flood Advisory | ALY | 2 hr |
| Aug 8, 1:47 AM EDT | Areal Flood Warning | ALY | 3 hr |
| Aug 10, 6:12 PM EDT | Areal Flood Advisory | ALY | 2 hr |
| Aug 12, 6:10 PM EDT | Special Weather Statement | ALY | 65 min |
| Aug 12, 7:35 PM EDT | Special Weather Statement | ALY | 40 min |
| Aug 12, 7:51 PM EDT | Severe Thunderstorm Warning | ALY | 54 min |
| Aug 12, 8:05 PM EDT | Special Weather Statement | ALY | 25 min |
| Aug 12, 8:35 PM EDT | Special Weather Statement | ALY | 40 min |
| Aug 12, 8:48 PM EDT | Special Weather Statement | BGM | 27 min |
| Aug 12, 9:27 PM EDT | Areal Flood Advisory | ALY | 2 hr |
| Aug 12, 9:32 PM EDT | Special Weather Statement | ALY | 28 min |
| Aug 18, 1:17 AM EDT | Special Weather Statement | ALY | 58 min |
| Sep 4, 2:58 PM EDT | Heat Advisory | ALY | 28 hr |
| Sep 5, 3:30 PM EDT | Heat Advisory | ALY | 52 hr |
| Sep 6, 3:45 PM EDT | Heat Advisory | ALY | 27 hr |
| Sep 7, 11:58 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 7, 1:14 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 7, 6:13 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Sep 7, 6:19 PM EDT | Special Weather Statement | ALY | 41 min |
| Sep 7, 6:56 PM EDT | Severe Thunderstorm Warning | ALY | 64 min |
| Sep 7, 7:47 PM EDT | Special Weather Statement | ALY | 28 min |
| Sep 7, 7:51 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Sep 9, 10:06 PM EDT | Special Weather Statement | ALY | 39 min |
| Sep 20, 3:30 PM EDT | Frost Advisory | ALY | 17 hr |
| Sep 26, 3:43 AM EDT | Frost Advisory | ALY | 29 hr |
| Nov 8, 3:25 AM EST | Winter Weather Advisory | ALY | 33 hr |
| Nov 9, 2:36 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Nov 20, 3:56 PM EST | Winter Weather Advisory | ALY | 41 hr |
| Nov 26, 3:18 AM EST | Winter Storm Watch | ALY | 13 hr |
| Nov 26, 3:48 PM EST | Lake Effect Snow Warning | ALY | 56 hr |
| Nov 26, 3:48 PM EST | Winter Storm Watch | ALY | 12 hr |
| Nov 27, 3:23 AM EST | Winter Weather Advisory | ALY | 51 hr |
| Dec 8, 3:00 PM EST | Winter Storm Watch | ALY | 36 hr |
| Dec 10, 3:18 AM EST | Winter Storm Warning | ALY | 32 hr |
| Dec 11, 3:06 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 12, 2:41 AM EST | Winter Weather Advisory | ALY | 40 hr |
| Dec 16, 3:24 PM EST | Flood Watch | ALY | 48 hr |
| Dec 18, 5:59 AM EST | Areal Flood Advisory | ALY | 9 hr |
| Dec 18, 6:44 AM EST | River Flood Warning | ALY | 12 hr |
| Dec 18, 11:29 AM EST | River Flood Warning | ALY | 5 hr |
| Dec 18, 7:53 PM EST | River Flood Warning | BUF | 14 hr |
| Dec 23, 8:23 PM EST | Winter Weather Advisory | ALY | 14 hr |
| Dec 25, 9:15 PM EST | Dense Fog Advisory | ALY | 14 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 archive20222024
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.