Alert archive / New York / Herkimer County
Weather alerts in Herkimer County, New York, 2026
99 weather alerts in 2026, 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 2026. Tap one for its archive.
- Alerts
- 99
- Warnings
- 29
- Watches
- 15
- Advisories
- 27
- Busiest month
- January23 alerts
- Busiest day
- June 30, 20267 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, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 11 | 10 | 9% | 18 | 78% | 20 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Albany, NY: tornado warnings | 4 | 2 | 50% | 3 | 100% | 19 min |
| NWS Albany, NY: severe thunderstorm warnings | 92 | 75 | 18% | 309 | 84% | 23 min |
| NWS Albany, NY: flash flood warnings | 30 | 19 | 37% | 67 | 94% | 212 min |
An office's figures cover every county it serves, including across state lines.
The year is still running; reports filed late and damage surveys can still change these figures.
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, 12:38 AM EST | Winter Weather Advisory | ALY | 30 hr |
| Jan 6, 12:11 AM EST | Winter Weather Advisory | ALY | 35 hr |
| Jan 10, 12:47 AM EST | Winter Weather Advisory | ALY | 27 hr |
| Jan 11, 12:31 AM EST | Wind Advisory | ALY | 32 hr |
| Jan 14, 12:57 AM EST | Winter Weather Advisory | ALY | 42 hr |
| Jan 16, 12:36 PM EST | Winter Weather Advisory | ALY | 28 hr |
| Jan 18, 12:57 AM EST | Winter Storm Watch | ALY | 12 hr |
| Jan 18, 12:31 PM EST | Winter Storm Warning | ALY | 65 hr |
| Jan 20, 1:15 PM EST | Winter Storm Watch | ALY | 11 hr |
| Jan 21, 12:42 AM EST | Winter Weather Advisory | ALY | 36 hr |
| Jan 21, 12:33 PM EST | Extreme Cold Watch | ALY | 24 hr |
| Jan 22, 12:38 AM EST | Lake Effect Snow Warning | ALY | 42 hr |
| Jan 22, 8:52 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 22, 11:40 AM EST | Snow Squall Warning | ALY | 50 min |
| Jan 22, 12:34 PM EST | Extreme Cold Warning | ALY | 48 hr |
| Jan 22, 12:38 PM EST | Winter Storm Watch | ALY | 24 hr |
| Jan 22, 2:15 PM EST | Special Weather Statement | ALY | 45 min |
| Jan 23, 12:30 PM EST | Winter Storm Warning | ALY | 3 days |
| Jan 24, 12:55 PM EST | Cold Weather Advisory | ALY | 17 hr |
| Jan 27, 12:04 PM EST | Areal Flood Warning | ALY | 48 hr |
| Jan 28, 12:22 PM EST | Cold Weather Advisory | ALY | 63 hr |
| Jan 29, 12:32 PM EST | Extreme Cold Warning | ALY | 25 hr |
| Jan 31, 12:06 PM EST | Cold Weather Advisory | ALY | 22 hr |
| Feb 5, 12:51 AM EST | Extreme Cold Watch | ALY | 24 hr |
| Feb 6, 12:55 AM EST | Cold Weather Advisory | ALY | 3 days |
| Feb 6, 12:55 AM EST | Extreme Cold Warning | ALY | 60 hr |
| Feb 9, 1:24 PM EST | Winter Weather Advisory | ALY | 60 hr |
| Feb 17, 12:27 PM EST | Winter Weather Advisory | ALY | 37 hr |
| Feb 19, 1:15 PM EST | Winter Weather Advisory | ALY | 38 hr |
| Feb 20, 1:27 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 24, 12:39 AM EST | Winter Weather Advisory | ALY | 48 hr |
| Feb 25, 6:10 PM EST | Special Weather Statement | ALY | 35 min |
| Feb 25, 6:44 PM EST | Special Weather Statement | ALY | 61 min |
| Mar 2, 12:48 PM EST | Winter Weather Advisory | ALY | 38 hr |
| Mar 4, 12:50 PM EST | Winter Weather Advisory | ALY | 45 hr |
| Mar 10, 1:50 PM EDT | Flood Watch | ALY | 46 hr |
| Mar 12, 1:26 AM EDT | Wind Advisory | ALY | 12 hr |
| Mar 12, 1:28 AM EDT | Winter Storm Watch | ALY | 12 hr |
| Mar 12, 1:41 PM EDT | Winter Storm Warning | ALY | 48 hr |
| Mar 13, 1:00 PM EDT | Wind Advisory | ALY | 29 hr |
| Mar 16, 1:21 PM EDT | Winter Weather Advisory | ALY | 17 hr |
| Mar 17, 6:00 PM EDT | Special Weather Statement | ALY | 60 min |
| Mar 30, 1:07 PM EDT | Flood Watch | ALY | 55 hr |
| Mar 31, 7:39 AM EDT | Areal Flood Advisory | ALY | 2 hr |
| Mar 31, 9:42 AM EDT | River Flood Warning | ALY | 4 days |
| Mar 31, 9:52 PM EDT | River Flood Warning | ALY | 6 days |
| Apr 1, 4:12 AM EDT | River Flood Warning | ALY | 42 hr |
| Apr 1, 8:50 AM EDT | Areal Flood Warning | ALY | 23 hr |
| Apr 5, 10:49 AM EDT | River Flood Warning | ALY | 35 hr |
| Apr 14, 12:50 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 14, 2:51 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 14, 3:09 PM EDT | Special Weather Statement | ALY | 36 min |
| Apr 14, 3:13 PM EDT | Special Weather Statement | ALY | 32 min |
| Apr 14, 3:25 PM EDT | Severe Thunderstorm Warning | ALY | 50 min |
| Apr 16, 1:36 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Apr 16, 6:50 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Apr 16, 6:57 PM EDT | Severe Thunderstorm Warning | ALY | 63 min |
| May 5, 1:33 PM EDT | Mesoscale Discussion | SPC | 87 min |
| May 10, 1:06 PM EDT | Frost Advisory | ALY | 19 hr |
| May 11, 1:06 PM EDT | Freeze Warning | ALY | 19 hr |
| May 21, 1:26 AM EDT | Frost Advisory | ALY | 31 hr |
| May 21, 1:26 AM EDT | Freeze Warning | ALY | 31 hr |
| Jun 6, 4:16 PM EDT | Special Weather Statement | ALY | 44 min |
| Jun 10, 1:47 AM EDT | Heat Advisory | ALY | 66 hr |
| Jun 14, 1:58 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Jun 17, 1:21 PM EDT | Wind Advisory | ALY | 30 hr |
| Jun 18, 9:31 AM EDT | Mesoscale Discussion | SPC | 119 min |
| Jun 18, 9:58 AM EDT | Tornado Watch | SPC | 7 hr |
| Jun 18, 12:06 PM EDT | Severe Thunderstorm Warning | ALY | 54 min |
| Jun 18, 12:53 PM EDT | Severe Thunderstorm Warning | ALY | 45 min |
| Jun 28, 1:48 PM EDT | Extreme Heat Watch | ALY | 47 hr |
| Jun 30, 12:31 PM EDT | Heat Advisory | ALY | 3 days |
| Jun 30, 12:31 PM EDT | Extreme Heat Warning | ALY | 3 days |
| Jun 30, 1:14 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 30, 2:02 PM EDT | Severe Thunderstorm Warning | ALY | 58 min |
| Jun 30, 2:48 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jun 30, 2:53 PM EDT | Severe Thunderstorm Warning | ALY | 67 min |
| Jun 30, 3:37 PM EDT | Severe Thunderstorm Warning | ALY | 53 min |
| Jul 1, 4:57 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 1, 7:24 PM EDT | Severe Thunderstorm Warning | ALY | 51 min |
| Jul 1, 8:07 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jul 1, 8:13 PM EDT | Severe Thunderstorm Warning | ALY | 47 min |
| Jul 1, 8:35 PM EDT | Flash Flood Warning | ALY | 2 hr |
| Jul 1, 8:59 PM EDT | Severe Thunderstorm Warning | ALY | 61 min |
| Jul 1, 10:01 PM EDT | Special Weather Statement | ALY | 44 min |
| Jul 2, 4:18 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jul 2, 7:01 PM EDT | Special Weather Statement | ALY | 29 min |
| Jul 13, 2:21 AM EDT | Heat Advisory | ALY | 58 hr |
| Jul 21, 2:06 PM EDT | Tornado Watch | SPC | 7 hr |
| Aug 6, 1:39 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 8, 11:25 PM EDT | Special Weather Statement | BGM | 35 min |
| Aug 14, 3:27 PM EDT | Special Weather Statement | ALY | 48 min |
| Aug 14, 3:35 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Aug 23, 12:03 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 27, 12:51 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Aug 27, 1:53 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 27, 3:44 PM EDT | Special Weather Statement | ALY | 31 min |
| Aug 27, 3:52 PM EDT | Severe Thunderstorm Warning | ALY | 50 min |
| Sep 13, 6:35 PM EDT | Special Weather Statement | ALY | 40 min |
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 archive2025
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.