Alert archive / Vermont / Caledonia County
Weather alerts in Caledonia County, Vermont, 2024
112 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Caledonia County and its neighbors
Each county as a circle sized by its count in 2024. Tap one for its archive.
- Alerts
- 112
- Warnings
- 47
- Watches
- 11
- Advisories
- 21
- Busiest month
- July31 alerts
- Busiest day
- July 30, 202413 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Caledonia County, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 11 | 7 | 36% | 1 | 0% | |
| Flash flood warnings | 9 | 8 | 11% | 25 | 92% | 301 min |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Burlington, VT: tornado warnings | 4 | 0 | 100% | 1 | 0% | |
| NWS Burlington, VT: severe thunderstorm warnings | 71 | 48 | 32% | 103 | 81% | 17 min |
| NWS Burlington, VT: flash flood warnings | 22 | 17 | 23% | 89 | 93% | 261 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 6, 3:46 AM EST | Winter Weather Advisory | BTV | 36 hr |
| Jan 7, 3:43 AM EST | High Wind Watch | BTV | 36 hr |
| Jan 8, 3:36 PM EST | Wind Advisory | BTV | 39 hr |
| Jan 8, 3:36 PM EST | Winter Weather Advisory | BTV | 37 hr |
| Jan 12, 3:20 AM EST | Wind Advisory | BTV | 34 hr |
| Jan 14, 11:49 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 14, 1:19 PM EST | Snow Squall Warning | BTV | 41 min |
| Jan 14, 2:02 PM EST | Snow Squall Warning | BTV | 28 min |
| Jan 14, 2:41 PM EST | Snow Squall Warning | BTV | 64 min |
| Jan 15, 3:05 PM EST | Winter Weather Advisory | BTV | 31 hr |
| Jan 23, 3:47 AM EST | Winter Weather Advisory | BTV | 48 hr |
| Jan 24, 8:00 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 25, 2:40 PM EST | Winter Weather Advisory | BTV | 25 hr |
| Jan 26, 10:56 PM EST | Dense Fog Advisory | BTV | 11 hr |
| Feb 14, 3:17 PM EST | Winter Weather Advisory | BTV | 40 hr |
| Feb 19, 3:00 AM EST | Special Weather Statement | BTV | 90 min |
| Feb 27, 2:14 PM EST | Wind Advisory | BTV | 41 hr |
| Feb 28, 7:06 PM EST | Special Weather Statement | BTV | 84 min |
| Mar 7, 5:50 AM EST | Areal Flood Warning | BTV | 9 hr |
| Mar 7, 11:38 AM EST | River Flood Warning | GYX | 48 hr |
| Mar 8, 2:28 PM EST | Winter Storm Watch | BTV | 13 hr |
| Mar 9, 3:35 AM EST | Winter Weather Advisory | BTV | 59 hr |
| Mar 10, 2:40 PM EDT | Wind Advisory | BTV | 31 hr |
| Mar 20, 11:01 AM EDT | Snow Squall Warning | BTV | 44 min |
| Mar 20, 11:55 AM EDT | Special Weather Statement | BTV | 50 min |
| Mar 20, 1:38 PM EDT | Special Weather Statement | BTV | 52 min |
| Mar 20, 6:45 PM EDT | Special Weather Statement | BTV | 60 min |
| Mar 21, 3:18 AM EDT | Winter Storm Watch | BTV | 25 hr |
| Mar 22, 4:01 AM EDT | Winter Storm Warning | BTV | 42 hr |
| Mar 23, 3:27 AM EDT | Mesoscale Discussion | SPC | 4 hr |
| Mar 23, 8:29 AM EDT | Mesoscale Discussion | SPC | 4 hr |
| Apr 2, 3:12 PM EDT | Wind Advisory | BTV | 42 hr |
| Apr 2, 3:27 PM EDT | Winter Storm Warning | BTV | 60 hr |
| May 8, 3:31 PM EDT | Special Weather Statement | BTV | 44 min |
| May 8, 4:32 PM EDT | Severe Thunderstorm Warning | BTV | 43 min |
| May 14, 3:21 PM EDT | Special Weather Statement | BTV | 54 min |
| May 15, 8:28 PM EDT | Areal Flood Warning | BTV | 4 hr |
| May 21, 1:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 14, 1:18 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jun 16, 2:51 PM EDT | Heat Advisory | BTV | 4 days |
| Jun 18, 2:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 19, 12:10 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 19, 12:55 PM EDT | Severe Thunderstorm Warning | BTV | 50 min |
| Jun 19, 1:34 PM EDT | Severe Thunderstorm Warning | BTV | 41 min |
| Jun 19, 1:57 PM EDT | Special Weather Statement | BTV | 33 min |
| Jun 19, 2:25 PM EDT | Special Weather Statement | BTV | 35 min |
| Jun 19, 2:35 PM EDT | Severe Thunderstorm Warning | BTV | 40 min |
| Jun 19, 5:59 PM EDT | Severe Thunderstorm Warning | BTV | 40 min |
| Jun 20, 11:26 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 20, 12:59 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 20, 2:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jun 23, 12:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 23, 12:59 PM EDT | Tornado Watch | SPC | 9 hr |
| Jun 23, 2:29 PM EDT | Severe Thunderstorm Warning | BTV | 61 min |
| Jun 23, 2:37 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jun 23, 3:21 PM EDT | Severe Thunderstorm Warning | BTV | 39 min |
| Jun 23, 4:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jun 23, 4:43 PM EDT | Severe Thunderstorm Warning | BTV | 47 min |
| Jun 23, 4:44 PM EDT | Flash Flood Warning | BTV | 3 hr |
| Jun 23, 5:28 PM EDT | Special Weather Statement | BTV | 62 min |
| Jun 30, 12:52 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 30, 1:50 PM EDT | Severe Thunderstorm Warning | BTV | 40 min |
| Jul 6, 5:50 PM EDT | Severe Thunderstorm Warning | BTV | 36 min |
| Jul 6, 5:52 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 6, 8:56 PM EDT | Special Weather Statement | BTV | 64 min |
| Jul 9, 1:45 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 9, 2:57 PM EDT | Flood Watch | BTV | 45 hr |
| Jul 10, 12:06 PM EDT | Tornado Watch | SPC | 11 hr |
| Jul 10, 5:41 PM EDT | Special Weather Statement | BTV | 64 min |
| Jul 10, 6:38 PM EDT | Flash Flood Warning | BTV | 12 hr |
| Jul 10, 7:16 PM EDT | Severe Thunderstorm Warning | BTV | 44 min |
| Jul 10, 10:52 PM EDT | Flash Flood Warning | BTV | 8 hr |
| Jul 10, 11:44 PM EDT | River Flood Warning | BTV | 32 hr |
| Jul 11, 4:44 AM EDT | River Flood Warning | GYX | 7 hr |
| Jul 11, 6:27 AM EDT | Areal Flood Warning | BTV | 5 hr |
| Jul 11, 7:16 AM EDT | Areal Flood Warning | BTV | 5 hr |
| Jul 11, 8:03 AM EDT | River Flood Warning | GYX | 68 hr |
| Jul 12, 7:22 AM EDT | River Flood Warning | GYX | 8 hr |
| Jul 13, 1:13 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 30, 12:57 AM EDT | Areal Flood Warning | BTV | 9 hr |
| Jul 30, 1:12 AM EDT | Flash Flood Warning | BTV | 9 hr |
| Jul 30, 1:21 AM EDT | Areal Flood Warning | BTV | 3 hr |
| Jul 30, 2:00 AM EDT | Areal Flood Warning | BTV | 8 hr |
| Jul 30, 2:24 AM EDT | Flash Flood Warning | BTV | 7 hr |
| Jul 30, 3:08 AM EDT | Flash Flood Warning | BTV | 7 hr |
| Jul 30, 3:39 AM EDT | Flash Flood Warning | BTV | 3 hr |
| Jul 30, 4:42 AM EDT | River Flood Warning | BTV | 6 hr |
| Jul 30, 4:54 AM EDT | Areal Flood Warning | BTV | 11 hr |
| Jul 30, 6:28 AM EDT | Areal Flood Warning | BTV | 3 hr |
| Jul 30, 9:49 AM EDT | Areal Flood Warning | BTV | 8 hr |
| Jul 30, 3:06 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jul 30, 3:29 PM EDT | Flood Watch | BTV | 30 hr |
| Jul 31, 6:33 PM EDT | Flash Flood Warning | BTV | 3 hr |
| Aug 4, 1:34 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 4, 2:37 PM EDT | Flash Flood Warning | BTV | 3 hr |
| Aug 4, 6:45 PM EDT | Areal Flood Warning | BTV | 3 hr |
| Aug 8, 3:45 AM EDT | Flood Watch | BTV | 39 hr |
| Aug 9, 3:05 AM EDT | Areal Flood Warning | BTV | 6 hr |
| Aug 15, 11:57 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 26, 3:41 PM EDT | Special Weather Statement | GYX | 49 min |
| Oct 12, 6:12 AM EDT | Wind Advisory | BTV | 5 hr |
| Nov 25, 3:15 AM EST | Winter Weather Advisory | BTV | 34 hr |
| Nov 27, 1:46 PM EST | Winter Storm Warning | BTV | 33 hr |
| Nov 27, 1:46 PM EST | Winter Weather Advisory | BTV | 33 hr |
| Dec 3, 3:02 PM EST | Winter Weather Advisory | BTV | 45 hr |
| Dec 6, 3:04 PM EST | Winter Weather Advisory | BTV | 43 hr |
| Dec 9, 2:49 AM EST | Winter Weather Advisory | BTV | 31 hr |
| Dec 9, 3:07 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 10, 3:32 AM EST | Flood Watch | BTV | 51 hr |
| Dec 11, 10:24 PM EST | Areal Flood Warning | BTV | 9 hr |
| Dec 22, 3:22 PM EST | Winter Weather Advisory | BTV | 44 hr |
| Dec 31, 6:24 AM EST | Areal Flood Warning | BTV | 5 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 11 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 20 |
| Special Weather Statement | 13 |
| Flooding | |
| Areal Flood Warning | 14 |
| Flash Flood Warning | 9 |
| River Flood Warning | 6 |
| Flood Watch | 4 |
| Winter | |
| Snow Squall Warning | 4 |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 13 |
| Heat | |
| Heat Advisory | 1 |
| Wind and dust | |
| High Wind Watch | 1 |
| Wind Advisory | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20232025
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.