Alert archive / New York / Herkimer County
Weather alerts in Herkimer County, New York, 2025
146 weather alerts in 2025, 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 2025. Tap one for its archive.
- Alerts
- 146
- Warnings
- 33
- Watches
- 19
- Advisories
- 60
- Busiest month
- February26 alerts
- Busiest day
- May 17, 202513 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, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 8 | 5 | 38% | 20 | 95% | 11 min |
| Flash flood warnings | 1 | 1 | 0% | 8 | 75% | 10 min |
Each office's whole area, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Albany, NY: tornado warnings | 3 | 0 | 100% | 0 | ||
| NWS Albany, NY: severe thunderstorm warnings | 71 | 55 | 23% | 209 | 81% | 19 min |
| NWS Albany, NY: flash flood warnings | 10 | 5 | 50% | 16 | 88% | 35 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 4, 3:10 AM EST | Lake Effect Snow Warning | ALY | 37 hr |
| Jan 4, 3:10 AM EST | Winter Weather Advisory | ALY | 37 hr |
| Jan 12, 4:20 PM EST | Winter Storm Watch | ALY | 10 hr |
| Jan 13, 2:43 AM EST | Lake Effect Snow Warning | ALY | 48 hr |
| Jan 20, 3:49 AM EST | Cold Weather Advisory | ALY | 54 hr |
| Jan 20, 5:05 AM EST | Winter Weather Advisory | ALY | 43 hr |
| Jan 25, 3:18 AM EST | Winter Weather Advisory | ALY | 46 hr |
| Jan 27, 3:03 AM EST | Wind Advisory | ALY | 35 hr |
| Jan 27, 3:14 AM EST | Winter Weather Advisory | ALY | 28 hr |
| Jan 28, 1:23 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 28, 3:10 AM EST | Winter Storm Watch | ALY | 11 hr |
| Jan 28, 4:20 AM EST | Special Weather Statement | ALY | 40 min |
| Jan 28, 5:03 AM EST | Special Weather Statement | ALY | 57 min |
| Jan 28, 5:19 AM EST | Snow Squall Warning | ALY | 41 min |
| Jan 28, 5:58 AM EST | Snow Squall Warning | ALY | 47 min |
| Jan 28, 2:09 PM EST | Winter Storm Warning | ALY | 35 hr |
| Jan 29, 3:12 AM EST | Wind Advisory | ALY | 24 hr |
| Jan 30, 3:22 AM EST | Winter Weather Advisory | ALY | 49 hr |
| Feb 1, 9:35 PM EST | Cold Weather Advisory | ALY | 11 hr |
| Feb 2, 12:59 PM EST | Winter Weather Advisory | ALY | 14 hr |
| Feb 4, 3:45 PM EST | Winter Weather Advisory | ALY | 46 hr |
| Feb 6, 3:01 PM EST | Winter Weather Advisory | ALY | 31 hr |
| Feb 6, 3:12 PM EST | Wind Advisory | ALY | 23 hr |
| Feb 7, 4:20 AM EST | Snow Squall Warning | ALY | 25 min |
| Feb 7, 3:15 PM EST | Winter Storm Watch | ALY | 12 hr |
| Feb 7, 3:15 PM EST | Winter Storm Warning | ALY | 42 hr |
| Feb 11, 2:49 PM EST | Winter Weather Advisory | ALY | 46 hr |
| Feb 12, 3:08 AM EST | Winter Storm Watch | ALY | 12 hr |
| Feb 12, 3:36 PM EST | Winter Weather Advisory | ALY | 22 hr |
| Feb 13, 3:02 AM EST | Wind Advisory | ALY | 25 hr |
| Feb 13, 1:28 PM EST | Lake Effect Snow Warning | ALY | 30 hr |
| Feb 14, 3:21 AM EST | Winter Storm Watch | ALY | 12 hr |
| Feb 14, 4:11 AM EST | Winter Weather Advisory | ALY | 64 hr |
| Feb 14, 3:42 PM EST | Winter Storm Warning | ALY | 57 hr |
| Feb 15, 3:36 AM EST | High Wind Watch | ALY | 24 hr |
| Feb 15, 3:28 PM EST | Winter Storm Watch | ALY | 12 hr |
| Feb 16, 3:24 AM EST | High Wind Warning | ALY | 45 hr |
| Feb 16, 3:24 AM EST | Wind Advisory | ALY | 45 hr |
| Feb 16, 3:56 AM EST | Lake Effect Snow Warning | ALY | 71 hr |
| Feb 16, 8:28 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 17, 3:41 AM EST | Cold Weather Advisory | ALY | 31 hr |
| Feb 17, 4:31 PM EST | Special Weather Statement | ALY | 59 min |
| Feb 18, 2:52 PM EST | Cold Weather Advisory | ALY | 15 hr |
| Feb 27, 2:45 PM EST | Winter Weather Advisory | ALY | 47 hr |
| Mar 1, 3:11 AM EST | Cold Weather Advisory | ALY | 32 hr |
| Mar 6, 3:49 AM EST | Wind Advisory | ALY | 42 hr |
| Mar 8, 2:11 AM EST | Wind Advisory | ALY | 19 hr |
| Mar 14, 2:27 PM EDT | Flood Watch | ALY | 71 hr |
| Mar 16, 4:02 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Mar 16, 5:46 PM EDT | Severe Thunderstorm Warning | ALY | 44 min |
| Mar 16, 6:20 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Mar 16, 6:49 PM EDT | Special Weather Statement | ALY | 41 min |
| Mar 16, 6:58 PM EDT | Severe Thunderstorm Warning | ALY | 33 min |
| Mar 16, 9:36 PM EDT | River Flood Warning | ALY | 11 hr |
| Mar 17, 1:43 AM EDT | River Flood Warning | ALY | 11 hr |
| Mar 18, 2:52 PM EDT | Fire Weather Watch | BGM | 13 hr |
| Mar 19, 10:25 AM EDT | Red Flag Warning | BGM | 9 hr |
| Mar 23, 2:34 PM EDT | Winter Weather Advisory | ALY | 23 hr |
| Mar 27, 3:06 PM EDT | Winter Weather Advisory | ALY | 67 hr |
| Apr 2, 3:45 AM EDT | Winter Weather Advisory | ALY | 31 hr |
| Apr 2, 3:54 AM EDT | Wind Advisory | ALY | 40 hr |
| Apr 3, 11:48 AM EDT | River Flood Warning | ALY | 3 hr |
| Apr 7, 2:49 PM EDT | Wind Advisory | ALY | 29 hr |
| Apr 15, 3:12 AM EDT | Winter Weather Advisory | ALY | 35 hr |
| Apr 29, 3:26 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 29, 6:05 PM EDT | Severe Thunderstorm Warning | ALY | 40 min |
| Apr 29, 6:42 PM EDT | Severe Thunderstorm Warning | ALY | 36 min |
| May 5, 1:00 PM EDT | Flood Watch | ALY | 37 hr |
| May 6, 5:02 PM EDT | Flash Flood Warning | ALY | 2 hr |
| May 6, 5:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 6, 7:23 PM EDT | Areal Flood Warning | ALY | 3 hr |
| May 17, 7:36 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 17, 8:02 AM EDT | Special Weather Statement | ALY | 28 min |
| May 17, 8:32 AM EDT | Special Weather Statement | ALY | 43 min |
| May 17, 11:02 AM EDT | Special Weather Statement | ALY | 28 min |
| May 17, 11:27 AM EDT | Special Weather Statement | ALY | 48 min |
| May 17, 12:16 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 17, 12:34 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 17, 12:45 PM EDT | Special Weather Statement | ALY | 45 min |
| May 17, 1:35 PM EDT | Special Weather Statement | ALY | 25 min |
| May 17, 2:33 PM EDT | Special Weather Statement | ALY | 27 min |
| May 17, 2:55 PM EDT | Severe Thunderstorm Warning | ALY | 35 min |
| May 17, 3:55 PM EDT | Severe Thunderstorm Warning | ALY | 50 min |
| May 17, 4:36 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jun 19, 12:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 19, 1:22 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 19, 8:46 PM EDT | Special Weather Statement | ALY | 29 min |
| Jun 21, 2:59 AM EDT | Heat Advisory | ALY | 41 hr |
| Jun 21, 2:59 AM EDT | Heat Advisory | ALY | 5 days |
| Jun 22, 3:52 AM EDT | Severe Thunderstorm Warning | ALY | 38 min |
| Jun 28, 3:13 PM EDT | Special Weather Statement | ALY | 47 min |
| Jun 30, 10:49 PM EDT | Special Weather Statement | ALY | 56 min |
| Jul 3, 6:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 5, 1:47 AM EDT | Heat Advisory | ALY | 42 hr |
| Jul 7, 1:39 AM EDT | Heat Advisory | ALY | 18 hr |
| Jul 7, 4:08 PM EDT | Special Weather Statement | ALY | 37 min |
| Jul 12, 4:53 PM EDT | Areal Flood Advisory | ALY | 112 min |
| Jul 13, 1:23 AM EDT | Flood Watch | ALY | 23 hr |
| Jul 13, 1:23 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 13, 3:29 PM EDT | Special Weather Statement | ALY | 31 min |
| Jul 13, 4:13 PM EDT | Severe Thunderstorm Warning | ALY | 62 min |
| Jul 13, 5:21 PM EDT | Special Weather Statement | ALY | 39 min |
| Jul 15, 1:00 PM EDT | Heat Advisory | ALY | 31 hr |
| Jul 24, 1:39 AM EDT | Heat Advisory | ALY | 18 hr |
| Aug 24, 1:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Aug 24, 6:10 PM EDT | Special Weather Statement | ALY | 50 min |
| Sep 4, 3:18 PM EDT | Special Weather Statement | ALY | 42 min |
| Sep 8, 12:52 AM EDT | Frost Advisory | ALY | 31 hr |
| Sep 19, 12:55 AM EDT | Frost Advisory | ALY | 31 hr |
| Sep 20, 1:28 AM EDT | Frost Advisory | ALY | 31 hr |
| Oct 1, 1:00 AM EDT | Frost Advisory | ALY | 31 hr |
| Oct 8, 1:28 AM EDT | Frost Advisory | ALY | 32 hr |
| Oct 8, 1:28 AM EDT | Freeze Watch | ALY | 24 hr |
| Oct 9, 1:00 AM EDT | Freeze Warning | ALY | 32 hr |
| Oct 30, 1:16 PM EDT | Wind Advisory | ALY | 39 hr |
| Nov 4, 12:40 PM EST | High Wind Watch | ALY | 12 hr |
| Nov 4, 12:40 PM EST | Wind Advisory | ALY | 40 hr |
| Nov 5, 12:54 AM EST | High Wind Warning | ALY | 26 hr |
| Nov 8, 12:24 PM EST | Winter Weather Advisory | ALY | 23 hr |
| Nov 11, 12:19 AM EST | Winter Weather Advisory | ALY | 18 hr |
| Nov 16, 12:59 AM EST | Winter Storm Warning | ALY | 36 hr |
| Nov 16, 11:48 AM EST | Wind Advisory | ALY | 10 hr |
| Nov 24, 12:20 PM EST | Winter Storm Watch | ALY | 49 hr |
| Nov 26, 12:38 AM EST | Lake Effect Snow Warning | ALY | 72 hr |
| Nov 29, 12:25 AM EST | Winter Weather Advisory | ALY | 48 hr |
| Nov 30, 1:14 PM EST | Winter Storm Watch | ALY | 23 hr |
| Dec 1, 12:31 PM EST | Winter Weather Advisory | ALY | 32 hr |
| Dec 4, 10:54 AM EST | Snow Squall Warning | ALY | 51 min |
| Dec 7, 6:27 PM EST | Special Weather Statement | ALY | 48 min |
| Dec 8, 1:02 PM EST | Winter Storm Watch | ALY | 25 hr |
| Dec 9, 1:34 PM EST | Winter Storm Warning | ALY | 41 hr |
| Dec 9, 1:34 PM EST | Winter Weather Advisory | ALY | 35 hr |
| Dec 10, 9:07 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 11, 12:37 AM EST | Winter Weather Advisory | ALY | 24 hr |
| Dec 17, 12:30 PM EST | Wind Advisory | ALY | 67 hr |
| Dec 21, 2:44 PM EST | Winter Weather Advisory | ALY | 8 hr |
| Dec 22, 12:39 PM EST | Winter Weather Advisory | ALY | 42 hr |
| Dec 23, 12:39 PM EST | Wind Advisory | ALY | 23 hr |
| Dec 25, 12:34 PM EST | Winter Storm Warning | ALY | 42 hr |
| Dec 25, 12:34 PM EST | Winter Weather Advisory | ALY | 24 hr |
| Dec 26, 12:07 PM EST | Winter Weather Advisory | ALY | 17 hr |
| Dec 27, 12:09 PM EST | Winter Weather Advisory | ALY | 46 hr |
| Dec 28, 9:40 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Dec 29, 12:32 AM EST | Wind Advisory | ALY | 40 hr |
| Dec 29, 1:19 PM EST | Lake Effect Snow Warning | ALY | 66 hr |
| Dec 29, 1:19 PM EST | Winter Weather Advisory | ALY | 66 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 archive20242026
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.