Alert archive / New York / Hamilton County
Weather alerts in Hamilton County, New York, 2015
88 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Hamilton County and its neighbors
Each county as a circle sized by its count in 2015. Tap one for its archive.
- Alerts
- 88
- Warnings
- 17
- Watches
- 14
- Advisories
- 22
- Busiest month
- June16 alerts
- Busiest day
- May 27, 20154 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Hamilton County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 2 | 0 | 100% | 0 | ||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Albany, NY: tornado warnings | 6 | 0 | 100% | 2 | 0% | |
| NWS Albany, NY: severe thunderstorm warnings | 80 | 58 | 28% | 198 | 79% | 23 min |
| NWS Albany, NY: flash flood warnings | 7 | 3 | 57% | 10 | 60% | 78 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 1, 3:15 AM EST | Lake Effect Snow Warning | ALY | 30 hr |
| Jan 2, 4:02 PM EST | Winter Weather Advisory | ALY | 41 hr |
| Jan 3, 4:19 AM EST | Winter Storm Warning | ALY | 29 hr |
| Jan 3, 3:48 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Jan 4, 4:33 AM EST | Lake Effect Snow Advisory | ALY | 44 hr |
| Jan 6, 4:37 AM EST | Wind Chill Watch | ALY | 12 hr |
| Jan 6, 4:32 PM EST | Wind Chill Warning | ALY | 41 hr |
| Jan 8, 3:32 PM EST | Lake Effect Snow Warning | ALY | 44 hr |
| Jan 12, 3:33 PM EST | Wind Chill Advisory | ALY | 18 hr |
| Jan 16, 2:51 AM EST | Wind Chill Advisory | ALY | 26 hr |
| Jan 29, 3:51 AM EST | Winter Weather Advisory | ALY | 33 hr |
| Jan 30, 4:41 AM EST | Wind Chill Warning | ALY | 30 hr |
| Jan 31, 3:58 PM EST | Winter Storm Watch | ALY | 10 hr |
| Jan 31, 3:58 PM EST | Winter Storm Warning | ALY | 50 hr |
| Feb 2, 4:00 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 2, 4:19 PM EST | Wind Chill Warning | ALY | 17 hr |
| Feb 5, 4:09 AM EST | Wind Chill Advisory | ALY | 29 hr |
| Feb 6, 3:38 PM EST | Winter Storm Watch | ALY | 24 hr |
| Feb 7, 3:36 PM EST | Winter Storm Warning | ALY | 57 hr |
| Feb 11, 4:42 PM EST | Wind Chill Watch | ALY | 11 hr |
| Feb 12, 3:33 AM EST | Wind Chill Warning | ALY | 32 hr |
| Feb 13, 3:47 PM EST | Wind Chill Watch | ALY | 13 hr |
| Feb 14, 4:17 AM EST | Wind Chill Warning | ALY | 56 hr |
| Feb 14, 4:17 AM EST | Winter Weather Advisory | ALY | 30 hr |
| Feb 19, 3:57 AM EST | Wind Chill Warning | ALY | 30 hr |
| Feb 20, 4:04 PM EST | Winter Weather Advisory | ALY | 40 hr |
| Feb 22, 2:08 PM EST | Wind Chill Advisory | ALY | 40 hr |
| Feb 23, 3:46 PM EST | Wind Chill Warning | ALY | 14 hr |
| Mar 2, 2:31 PM EST | Winter Weather Advisory | ALY | 39 hr |
| Mar 13, 3:29 PM EDT | Freezing Rain Advisory | ALY | 19 hr |
| Apr 3, 3:40 AM EDT | Winter Weather Advisory | ALY | 30 hr |
| Apr 3, 3:45 AM EDT | Wind Advisory | ALY | 36 hr |
| Apr 3, 3:48 AM EDT | Flood Watch | ALY | 32 hr |
| Apr 8, 3:39 PM EDT | Winter Weather Advisory | ALY | 12 hr |
| May 11, 1:32 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 11, 3:26 PM EDT | Special Weather Statement | ALY | 49 min |
| May 11, 6:23 PM EDT | Special Weather Statement | ALY | 37 min |
| May 20, 4:19 AM EDT | Frost Advisory | ALY | 26 hr |
| May 21, 3:57 PM EDT | Freeze Watch | ALY | 12 hr |
| May 22, 3:34 AM EDT | Freeze Warning | ALY | 28 hr |
| May 27, 11:50 AM EDT | Mesoscale Discussion | SPC | 85 min |
| May 27, 12:42 PM EDT | Special Weather Statement | ALY | 63 min |
| May 27, 12:54 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 27, 1:48 PM EDT | Special Weather Statement | ALY | 42 min |
| May 30, 6:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| May 30, 9:21 PM EDT | Special Weather Statement | ALY | 39 min |
| Jun 6, 4:52 AM EDT | Frost Advisory | ALY | 26 hr |
| Jun 8, 1:39 PM EDT | Tornado Watch | SPC | 6 hr |
| Jun 8, 2:26 PM EDT | Special Weather Statement | ALY | 34 min |
| Jun 8, 2:58 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 9, 12:36 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jun 10, 9:02 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 10, 10:53 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Jun 10, 11:07 PM EDT | Special Weather Statement | ALY | 23 min |
| Jun 10, 11:32 PM EDT | Special Weather Statement | ALY | 28 min |
| Jun 12, 3:07 PM EDT | Tornado Watch | SPC | 8 hr |
| Jun 12, 6:11 PM EDT | Severe Thunderstorm Warning | ALY | 64 min |
| Jun 12, 6:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jun 23, 4:24 AM EDT | Mesoscale Discussion | SPC | 66 min |
| Jun 23, 5:45 AM EDT | Special Weather Statement | ALY | 45 min |
| Jun 23, 2:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 27, 4:14 AM EDT | Flood Watch | ALY | 30 hr |
| Jul 19, 1:36 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 19, 2:49 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 19, 7:29 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jul 19, 11:59 PM EDT | Special Weather Statement | ALY | 61 min |
| Jul 20, 12:48 AM EDT | Special Weather Statement | ALY | 27 min |
| Jul 20, 12:56 AM EDT | Special Weather Statement | ALY | 34 min |
| Jul 20, 1:42 AM EDT | Special Weather Statement | ALY | 33 min |
| Aug 3, 12:45 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 14, 4:10 PM EDT | Special Weather Statement | ALY | 50 min |
| Aug 15, 4:35 PM EDT | Severe Thunderstorm Warning | ALY | 55 min |
| Sep 9, 11:07 AM EDT | Mesoscale Discussion | SPC | 83 min |
| Sep 9, 3:09 PM EDT | Special Weather Statement | ALY | 36 min |
| Sep 20, 3:06 AM EDT | Frost Advisory | ALY | 25 hr |
| Sep 29, 3:37 AM EDT | Flood Watch | ALY | 33 hr |
| Sep 30, 8:00 AM EDT | Areal Flood Advisory | ALY | 4 hr |
| Oct 1, 3:26 AM EDT | Freeze Warning | ALY | 28 hr |
| Oct 3, 3:53 PM EDT | Frost Advisory | ALY | 11 hr |
| Oct 4, 4:01 AM EDT | Freeze Warning | ALY | 29 hr |
| Oct 27, 3:41 PM EDT | Wind Advisory | ALY | 32 hr |
| Nov 6, 1:58 PM EST | Special Weather Statement | ALY | 62 min |
| Nov 6, 3:11 PM EST | Special Weather Statement | ALY | 64 min |
| Nov 12, 5:26 PM EST | Special Weather Statement | ALY | 64 min |
| Nov 12, 6:27 PM EST | Special Weather Statement | ALY | 63 min |
| Dec 18, 3:21 AM EST | Lake Effect Snow Advisory | ALY | 49 hr |
| Dec 27, 3:43 PM EST | Winter Weather Advisory | ALY | 51 hr |
| Dec 28, 10:25 PM EST | Mesoscale Discussion | SPC | 6 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 archive20142016
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.