Alert archive / Vermont / Chittenden County
Weather alerts in Chittenden County, Vermont, 2016
94 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Chittenden County and its neighbors
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Alerts
- 94
- Warnings
- 33
- Watches
- 9
- Advisories
- 22
- Busiest month
- July28 alerts
- Busiest day
- July 23, 20169 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Chittenden County, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 22 | 19 | 14% | 16 | 94% | 18 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Burlington, VT: severe thunderstorm warnings | 55 | 45 | 18% | 135 | 80% | 26 min |
| NWS Burlington, VT: flash flood warnings | 4 | 3 | 25% | 6 | 67% | 61 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 8, 3:33 PM EST | High Wind Watch | BTV | 24 hr |
| Jan 9, 3:07 PM EST | Wind Advisory | BTV | 26 hr |
| Jan 10, 3:45 AM EST | High Wind Warning | BTV | 13 hr |
| Jan 11, 3:38 PM EST | Winter Weather Advisory | BTV | 36 hr |
| Jan 18, 2:44 PM EST | Winter Weather Advisory | BTV | 31 hr |
| Feb 10, 4:01 PM EST | Special Weather Statement | BTV | 44 min |
| Feb 11, 3:06 PM EST | Wind Chill Watch | BTV | 12 hr |
| Feb 12, 3:26 AM EST | Wind Chill Warning | BTV | 60 hr |
| Feb 15, 4:07 AM EST | Winter Weather Advisory | BTV | 33 hr |
| Feb 23, 3:52 PM EST | Winter Weather Advisory | BTV | 22 hr |
| Feb 24, 11:34 PM EST | Special Weather Statement | BTV | 26 min |
| Feb 24, 11:50 PM EST | Areal Flood Warning | BTV | 6 hr |
| Feb 25, 5:44 AM EST | Areal Flood Warning | BTV | 3 hr |
| Feb 25, 10:32 AM EST | River Flood Warning | BTV | 23 hr |
| Feb 29, 3:08 PM EST | Winter Weather Advisory | BTV | 43 hr |
| Mar 24, 3:56 AM EDT | Freezing Rain Advisory | BTV | 31 hr |
| Apr 6, 11:44 PM EDT | Winter Weather Advisory | BTV | 6 hr |
| May 9, 3:31 AM EDT | Frost Advisory | BTV | 28 hr |
| May 10, 3:44 AM EDT | Frost Advisory | BTV | 28 hr |
| May 16, 3:16 PM EDT | Frost Advisory | BTV | 16 hr |
| May 29, 5:00 PM EDT | Severe Thunderstorm Warning | BTV | 60 min |
| May 30, 1:55 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 5, 5:19 PM EDT | Special Weather Statement | BTV | 86 min |
| Jun 7, 5:31 PM EDT | Special Weather Statement | BTV | 59 min |
| Jun 7, 6:20 PM EDT | Special Weather Statement | BTV | 55 min |
| Jun 17, 10:32 PM EDT | Special Weather Statement | BTV | 58 min |
| Jun 20, 11:27 PM EDT | Special Weather Statement | BTV | 63 min |
| Jun 20, 11:52 PM EDT | Severe Thunderstorm Warning | BTV | 39 min |
| Jun 21, 12:20 AM EDT | Severe Thunderstorm Warning | BTV | 55 min |
| Jun 28, 1:09 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jun 28, 1:14 PM EDT | Severe Thunderstorm Warning | BTV | 61 min |
| Jun 28, 4:07 PM EDT | Severe Thunderstorm Warning | BTV | 68 min |
| Jun 29, 12:08 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Jun 29, 1:28 PM EDT | Special Weather Statement | BTV | 62 min |
| Jun 29, 2:13 PM EDT | Severe Thunderstorm Warning | BTV | 62 min |
| Jul 1, 5:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 7, 1:06 PM EDT | Severe Thunderstorm Warning | BTV | 54 min |
| Jul 7, 1:18 PM EDT | Severe Thunderstorm Warning | BTV | 57 min |
| Jul 7, 1:54 PM EDT | Severe Thunderstorm Warning | BTV | 66 min |
| Jul 7, 2:38 PM EDT | Severe Thunderstorm Warning | BTV | 67 min |
| Jul 13, 5:11 PM EDT | Special Weather Statement | BTV | 64 min |
| Jul 14, 12:58 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 14, 3:17 PM EDT | Severe Thunderstorm Warning | BTV | 58 min |
| Jul 14, 3:17 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jul 14, 3:30 PM EDT | Special Weather Statement | BTV | 60 min |
| Jul 18, 10:32 AM EDT | Mesoscale Discussion | SPC | 118 min |
| Jul 18, 11:12 AM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 18, 1:00 PM EDT | Severe Thunderstorm Warning | BTV | 60 min |
| Jul 18, 1:59 PM EDT | Special Weather Statement | BTV | 61 min |
| Jul 18, 2:26 PM EDT | Severe Thunderstorm Warning | BTV | 64 min |
| Jul 18, 3:15 PM EDT | Special Weather Statement | BTV | 60 min |
| Jul 18, 3:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 18, 4:23 PM EDT | Special Weather Statement | BTV | 67 min |
| Jul 22, 9:42 PM EDT | Severe Thunderstorm Warning | BTV | 63 min |
| Jul 22, 10:06 PM EDT | Severe Thunderstorm Warning | BTV | 54 min |
| Jul 22, 10:43 PM EDT | Severe Thunderstorm Warning | BTV | 92 min |
| Jul 22, 10:56 PM EDT | Severe Thunderstorm Warning | BTV | 94 min |
| Jul 23, 11:46 AM EDT | Mesoscale Discussion | SPC | 119 min |
| Jul 23, 3:01 PM EDT | Severe Thunderstorm Warning | BTV | 59 min |
| Jul 23, 3:10 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 23, 3:35 PM EDT | Severe Thunderstorm Warning | BTV | 55 min |
| Jul 23, 4:43 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jul 28, 2:34 PM EDT | Special Weather Statement | BTV | 56 min |
| Aug 11, 3:50 PM EDT | Flash Flood Watch | BTV | 60 hr |
| Aug 13, 5:22 PM EDT | Special Weather Statement | BTV | 53 min |
| Aug 16, 10:40 PM EDT | Severe Thunderstorm Warning | BTV | 5 min |
| Aug 16, 10:45 PM EDT | Severe Thunderstorm Warning | BTV | 60 min |
| Sep 10, 12:50 PM EDT | Special Weather Statement | BTV | 10 min |
| Sep 11, 3:38 AM EDT | Special Weather Statement | BTV | 52 min |
| Sep 11, 4:27 AM EDT | Special Weather Statement | BTV | 63 min |
| Sep 11, 4:49 AM EDT | Severe Thunderstorm Warning | BTV | 56 min |
| Sep 24, 4:30 AM EDT | Frost Advisory | BTV | 27 hr |
| Sep 25, 1:34 PM EDT | Frost Advisory | BTV | 18 hr |
| Sep 25, 1:34 PM EDT | Freeze Warning | BTV | 18 hr |
| Oct 10, 3:49 AM EDT | Frost Advisory | BTV | 28 hr |
| Oct 10, 3:49 AM EDT | Freeze Warning | BTV | 28 hr |
| Oct 14, 4:05 AM EDT | Frost Advisory | BTV | 10 hr |
| Oct 14, 4:05 AM EDT | Freeze Warning | BTV | 27 hr |
| Nov 18, 2:39 PM EST | Winter Storm Watch | BTV | 13 hr |
| Nov 19, 3:45 AM EST | Winter Storm Warning | BTV | 63 hr |
| Nov 20, 9:45 PM EST | Winter Weather Advisory | BTV | 21 hr |
| Nov 30, 4:26 AM EST | Dense Fog Advisory | BTV | 5 hr |
| Dec 10, 3:02 PM EST | Winter Weather Advisory | BTV | 43 hr |
| Dec 12, 10:03 PM EST | Special Weather Statement | BTV | 57 min |
| Dec 14, 3:09 AM EST | Wind Chill Watch | BTV | 12 hr |
| Dec 14, 3:36 PM EST | Wind Chill Warning | BTV | 42 hr |
| Dec 14, 3:36 PM EST | Wind Chill Advisory | BTV | 42 hr |
| Dec 15, 12:59 AM EST | Special Weather Statement | BTV | 91 min |
| Dec 16, 3:28 AM EST | Winter Weather Advisory | BTV | 54 hr |
| Dec 18, 2:17 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 26, 3:26 AM EST | Wind Advisory | BTV | 19 hr |
| Dec 27, 2:07 PM EST | Winter Storm Watch | BTV | 14 hr |
| Dec 28, 3:42 AM EST | Winter Storm Warning | BTV | 53 hr |
| Dec 28, 3:42 AM EST | Winter Weather Advisory | BTV | 53 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 archive20152017
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.