Alert archive / Vermont / Caledonia County
Weather alerts in Caledonia County, Vermont, 2023
107 weather alerts in 2023, 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 2023. Tap one for its archive.
- Alerts
- 107
- Warnings
- 42
- Watches
- 17
- Advisories
- 20
- Busiest month
- July49 alerts
- Busiest day
- July 7, 202310 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, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 12 | 12 | 0% | 7 | 71% | 16 min |
| Flash flood warnings | 9 | 9 | 0% | 7 | 29% | 157 min |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Burlington, VT: tornado warnings | 1 | 1 | 0% | 2 | 100% | 8 min |
| NWS Burlington, VT: severe thunderstorm warnings | 82 | 66 | 20% | 120 | 87% | 22 min |
| NWS Burlington, VT: flash flood warnings | 61 | 40 | 34% | 123 | 81% | 168 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 3, 2:40 PM EST | Winter Weather Advisory | BTV | 43 hr |
| Jan 11, 2:45 PM EST | Winter Weather Advisory | BTV | 23 hr |
| Jan 12, 1:19 PM EST | Winter Weather Advisory | BTV | 30 hr |
| Jan 18, 3:34 PM EST | Winter Weather Advisory | BTV | 44 hr |
| Jan 21, 2:52 PM EST | Winter Weather Advisory | BTV | 46 hr |
| Jan 24, 3:33 PM EST | Winter Weather Advisory | BTV | 51 hr |
| Jan 25, 8:07 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 26, 3:12 PM EST | Special Weather Statement | BTV | 2 hr |
| Jan 31, 3:03 PM EST | Wind Chill Watch | BTV | 24 hr |
| Feb 1, 3:17 PM EST | Wind Chill Warning | BTV | 3 days |
| Feb 2, 10:39 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 3, 12:02 AM EST | Special Weather Statement | BTV | 58 min |
| Feb 8, 3:20 PM EST | Winter Weather Advisory | BTV | 31 hr |
| Feb 16, 2:56 AM EST | Winter Weather Advisory | BTV | 36 hr |
| Feb 21, 2:57 AM EST | Winter Storm Watch | BTV | 24 hr |
| Feb 22, 3:02 AM EST | Winter Storm Warning | BTV | 30 hr |
| Feb 22, 8:59 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Mar 2, 3:14 AM EST | Winter Storm Watch | BTV | 12 hr |
| Mar 2, 2:58 PM EST | Winter Storm Warning | BTV | 48 hr |
| Mar 2, 2:58 PM EST | Winter Weather Advisory | BTV | 12 hr |
| Mar 4, 1:40 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Mar 12, 3:17 PM EDT | Winter Storm Warning | BTV | 69 hr |
| Mar 12, 3:17 PM EDT | Winter Weather Advisory | BTV | 60 hr |
| Mar 19, 8:56 AM EDT | Special Weather Statement | BTV | 3 hr |
| Mar 29, 9:51 PM EDT | Mesoscale Discussion | SPC | 4 hr |
| Mar 29, 10:24 PM EDT | Snow Squall Warning | BTV | 66 min |
| Apr 4, 3:05 PM EDT | Winter Weather Advisory | BTV | 37 hr |
| May 21, 3:08 PM EDT | Frost Advisory | BTV | 16 hr |
| May 22, 3:14 PM EDT | Frost Advisory | BTV | 16 hr |
| May 25, 3:00 AM EDT | Frost Advisory | BTV | 28 hr |
| Jun 2, 12:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 2, 2:44 PM EDT | Special Weather Statement | BTV | 31 min |
| Jun 27, 4:42 PM EDT | Special Weather Statement | BTV | 63 min |
| Jul 4, 2:30 PM EDT | Special Weather Statement | BTV | 30 min |
| Jul 4, 3:09 PM EDT | Areal Flood Warning | BTV | 5 hr |
| Jul 4, 5:40 PM EDT | Severe Thunderstorm Warning | BTV | 50 min |
| Jul 4, 5:43 PM EDT | Special Weather Statement | BTV | 47 min |
| Jul 4, 6:36 PM EDT | Special Weather Statement | BTV | 24 min |
| Jul 7, 8:52 AM EDT | Flood Watch | BTV | 11 hr |
| Jul 7, 12:02 PM EDT | Severe Thunderstorm Warning | BTV | 43 min |
| Jul 7, 12:12 PM EDT | Severe Thunderstorm Warning | BTV | 63 min |
| Jul 7, 12:28 PM EDT | Areal Flood Warning | BTV | 3 hr |
| Jul 7, 12:42 PM EDT | Severe Thunderstorm Warning | BTV | 63 min |
| Jul 7, 1:03 PM EDT | Severe Thunderstorm Warning | BTV | 57 min |
| Jul 7, 1:07 PM EDT | Flash Flood Warning | BTV | 3 hr |
| Jul 7, 1:25 PM EDT | Severe Thunderstorm Warning | BTV | 65 min |
| Jul 7, 1:44 PM EDT | Flash Flood Warning | BTV | 3 hr |
| Jul 7, 2:10 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 8, 3:08 PM EDT | Flood Watch | BTV | 67 hr |
| Jul 8, 7:48 PM EDT | Special Weather Statement | BTV | 42 min |
| Jul 8, 8:32 PM EDT | Special Weather Statement | BTV | 58 min |
| Jul 9, 1:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 9, 4:17 PM EDT | Flash Flood Warning | BTV | 3 hr |
| Jul 9, 4:23 PM EDT | Severe Thunderstorm Warning | BTV | 37 min |
| Jul 9, 5:00 PM EDT | Special Weather Statement | BTV | 45 min |
| Jul 9, 6:16 PM EDT | Areal Flood Warning | BTV | 3 hr |
| Jul 9, 11:25 PM EDT | Flash Flood Warning | BTV | 6 hr |
| Jul 10, 2:24 AM EDT | Flash Flood Warning | BTV | 12 hr |
| Jul 10, 5:38 AM EDT | Flash Flood Warning | BTV | 9 hr |
| Jul 10, 7:03 AM EDT | Flash Flood Warning | BTV | 9 hr |
| Jul 10, 2:25 PM EDT | Areal Flood Warning | BTV | 20 hr |
| Jul 10, 8:05 PM EDT | Flash Flood Warning | BTV | 6 hr |
| Jul 10, 8:54 PM EDT | Areal Flood Warning | BTV | 12 hr |
| Jul 10, 9:49 PM EDT | Areal Flood Warning | BTV | 12 hr |
| Jul 12, 12:59 PM EDT | Flood Watch | BTV | 32 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, 6:44 PM EDT | Severe Thunderstorm Warning | BTV | 46 min |
| Jul 13, 6:57 PM EDT | Severe Thunderstorm Warning | BTV | 48 min |
| Jul 13, 7:18 PM EDT | Severe Thunderstorm Warning | BTV | 42 min |
| Jul 13, 7:26 PM EDT | Severe Thunderstorm Warning | BTV | 49 min |
| Jul 15, 12:08 AM EDT | Special Weather Statement | BTV | 52 min |
| Jul 15, 3:03 AM EDT | Flood Watch | BTV | 48 hr |
| Jul 16, 10:18 AM EDT | Flash Flood Warning | BTV | 2 hr |
| Jul 16, 9:21 PM EDT | Areal Flood Warning | BTV | 4 hr |
| Jul 17, 12:56 AM EDT | Areal Flood Warning | BTV | 6 hr |
| Jul 17, 3:02 PM EDT | Flood Watch | BTV | 33 hr |
| Jul 18, 12:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 20, 3:56 AM EDT | Flood Watch | BTV | 41 hr |
| Jul 24, 1:06 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 24, 3:05 PM EDT | Special Weather Statement | BTV | 40 min |
| Jul 26, 3:06 PM EDT | Flood Watch | BTV | 24 hr |
| Aug 4, 3:24 AM EDT | Flood Watch | BTV | 16 hr |
| Aug 7, 3:18 PM EDT | Flood Watch | BTV | 31 hr |
| Aug 12, 9:44 PM EDT | Special Weather Statement | BTV | 61 min |
| Sep 4, 3:21 PM EDT | Heat Advisory | BTV | 3 days |
| Sep 7, 1:36 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 7, 5:15 PM EDT | Severe Thunderstorm Warning | BTV | 29 min |
| Sep 7, 10:26 PM EDT | Special Weather Statement | BTV | 64 min |
| Nov 8, 3:22 AM EST | Winter Weather Advisory | BTV | 33 hr |
| Nov 20, 2:42 PM EST | Winter Weather Advisory | BTV | 46 hr |
| Nov 26, 8:37 PM EST | Winter Weather Advisory | BTV | 13 hr |
| Dec 2, 2:56 PM EST | Winter Weather Advisory | BTV | 43 hr |
| Dec 8, 1:50 PM EST | Flood Watch | BTV | 61 hr |
| Dec 8, 2:34 PM EST | Winter Storm Watch | BTV | 37 hr |
| Dec 9, 2:44 PM EST | Winter Storm Warning | BTV | 46 hr |
| Dec 11, 3:06 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 13, 10:59 AM EST | Special Weather Statement | BTV | 46 min |
| Dec 16, 3:27 PM EST | Flood Watch | BTV | 59 hr |
| Dec 18, 9:03 AM EST | Areal Flood Warning | BTV | 6 hr |
| Dec 18, 12:32 PM EST | Areal Flood Warning | BTV | 12 hr |
| Dec 18, 4:54 PM EST | Areal Flood Warning | BTV | 3 hr |
| Dec 18, 8:30 PM EST | River Flood Warning | GYX | 14 hr |
| Dec 18, 9:27 PM EST | River Flood Warning | BTV | 16 hr |
| Dec 19, 12:38 PM EST | River Flood Warning | GYX | 12 hr |
| Dec 20, 2:36 AM EST | River Flood Warning | GYX | 25 hr |
| Dec 28, 4:02 PM EST | Dense Fog Advisory | BTV | 17 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 | 12 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 12 |
| Special Weather Statement | 16 |
| Flooding | |
| Areal Flood Warning | 11 |
| Flash Flood Warning | 9 |
| River Flood Warning | 4 |
| Flood Watch | 11 |
| Winter | |
| Snow Squall Warning | 1 |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 15 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Wind Chill Warning | 1 |
| Wind Chill Watch | 1 |
| Frost Advisory | 3 |
| 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 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.