Alert archive / Vermont / Orleans County
Weather alerts in Orleans County, Vermont, 2015
96 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Orleans County and its neighbors
Each county as a circle sized by its count in 2015. Tap one for its archive.
- Alerts
- 96
- Warnings
- 28
- Watches
- 13
- Advisories
- 22
- Busiest month
- January17 alerts
- Busiest day
- August 3, 201510 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Orleans County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 9 | 6 | 33% | 4 | 75% | 9 min |
| Flash flood warnings | 3 | 1 | 67% | 0 |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Burlington, VT: severe thunderstorm warnings | 38 | 22 | 42% | 61 | 72% | 18 min |
| NWS Burlington, VT: flash flood warnings | 7 | 2 | 71% | 10 | 70% | 86 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 2, 3:45 AM EST | Winter Storm Watch | BTV | 12 hr |
| Jan 2, 3:55 PM EST | Winter Weather Advisory | BTV | 42 hr |
| Jan 3, 3:28 AM EST | Winter Storm Warning | BTV | 31 hr |
| Jan 3, 3:48 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Jan 5, 3:29 AM EST | Wind Chill Advisory | BTV | 24 hr |
| Jan 6, 12:17 PM EST | Wind Chill Watch | BTV | 5 hr |
| Jan 6, 4:55 PM EST | Wind Chill Warning | BTV | 43 hr |
| Jan 6, 6:02 PM EST | Winter Weather Advisory | BTV | 21 hr |
| Jan 9, 1:31 PM EST | Special Weather Statement | BTV | 119 min |
| Jan 12, 3:28 PM EST | Wind Chill Advisory | BTV | 18 hr |
| Jan 16, 3:32 AM EST | Wind Chill Advisory | BTV | 27 hr |
| Jan 17, 4:26 AM EST | Winter Storm Watch | BTV | 24 hr |
| Jan 18, 4:20 AM EST | Winter Storm Warning | BTV | 32 hr |
| Jan 18, 9:04 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 26, 3:34 AM EST | Winter Weather Advisory | BTV | 42 hr |
| Jan 29, 3:36 AM EST | Winter Weather Advisory | BTV | 42 hr |
| Jan 30, 3:56 AM EST | Wind Chill Advisory | BTV | 32 hr |
| Feb 1, 3:14 AM EST | Winter Storm Warning | BTV | 42 hr |
| Feb 1, 3:14 AM EST | Winter Weather Advisory | BTV | 30 hr |
| Feb 6, 2:41 PM EST | Winter Storm Watch | BTV | 25 hr |
| Feb 7, 3:16 PM EST | Winter Storm Warning | BTV | 39 hr |
| Feb 9, 3:09 AM EST | Winter Weather Advisory | BTV | 16 hr |
| Feb 12, 3:17 AM EST | Wind Chill Warning | BTV | 35 hr |
| Feb 13, 3:32 PM EST | Wind Chill Watch | BTV | 12 hr |
| Feb 14, 3:07 AM EST | Wind Chill Warning | BTV | 57 hr |
| Feb 18, 3:18 AM EST | Winter Weather Advisory | BTV | 33 hr |
| Feb 23, 3:33 AM EST | Wind Chill Advisory | BTV | 27 hr |
| Mar 3, 3:12 AM EST | Winter Weather Advisory | BTV | 24 hr |
| Mar 14, 3:34 AM EDT | Winter Weather Advisory | BTV | 36 hr |
| Mar 22, 3:19 PM EDT | Wind Chill Advisory | BTV | 17 hr |
| Apr 3, 4:37 AM EDT | Winter Weather Advisory | BTV | 34 hr |
| Apr 14, 9:18 AM EDT | River Flood Warning | BTV | 56 hr |
| Apr 22, 7:50 AM EDT | River Flood Warning | BTV | 8 days |
| May 19, 4:35 PM EDT | Severe Thunderstorm Warning | BTV | 55 min |
| May 20, 1:18 PM EDT | Frost Advisory | BTV | 18 hr |
| May 21, 3:23 PM EDT | Freeze Watch | BTV | 12 hr |
| May 22, 3:33 AM EDT | Freeze Warning | BTV | 27 hr |
| May 27, 11:50 AM EDT | Mesoscale Discussion | SPC | 85 min |
| May 27, 12:54 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 27, 1:21 PM EDT | Severe Thunderstorm Warning | BTV | 54 min |
| May 27, 1:22 PM EDT | Severe Thunderstorm Warning | BTV | 53 min |
| May 27, 2:59 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 27, 4:13 PM EDT | Special Weather Statement | BTV | 62 min |
| May 28, 1:17 PM EDT | Special Weather Statement | BTV | 58 min |
| May 28, 1:24 PM EDT | Severe Thunderstorm Warning | BTV | 51 min |
| May 30, 6:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 6, 3:17 AM EDT | Frost Advisory | BTV | 28 hr |
| Jun 9, 3:28 PM EDT | Flood Watch | BTV | 13 hr |
| Jun 10, 5:20 AM EDT | River Flood Warning | BTV | 7 days |
| Jun 10, 11:48 PM EDT | Special Weather Statement | BTV | 42 min |
| Jun 12, 2:54 PM EDT | Flood Watch | BTV | 15 hr |
| Jun 13, 2:56 AM EDT | Areal Flood Warning | BTV | 6 hr |
| Jun 13, 4:06 PM EDT | River Flood Warning | BTV | 24 hr |
| Jun 22, 4:12 PM EDT | River Flood Warning | BTV | 51 hr |
| Jun 23, 3:50 PM EDT | Special Weather Statement | BTV | 55 min |
| Jun 23, 5:32 PM EDT | Special Weather Statement | BTV | 28 min |
| Jun 27, 3:31 AM EDT | Flood Watch | BTV | 43 hr |
| Jul 1, 12:36 PM EDT | Flash Flood Warning | BTV | 6 hr |
| Jul 13, 1:46 PM EDT | Special Weather Statement | BTV | 59 min |
| Jul 13, 2:48 PM EDT | Special Weather Statement | BTV | 27 min |
| Jul 19, 8:10 AM EDT | Special Weather Statement | BTV | 65 min |
| 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, 5:03 PM EDT | Special Weather Statement | BTV | 57 min |
| Jul 19, 8:26 PM EDT | Flash Flood Warning | BTV | 8 hr |
| Jul 19, 8:48 PM EDT | Severe Thunderstorm Warning | BTV | 57 min |
| Jul 21, 12:47 PM EDT | Special Weather Statement | BTV | 58 min |
| Jul 21, 2:08 PM EDT | Special Weather Statement | BTV | 52 min |
| Jul 21, 7:37 PM EDT | Special Weather Statement | BTV | 53 min |
| Jul 28, 2:22 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Aug 1, 11:47 AM EDT | Special Weather Statement | BTV | 43 min |
| Aug 3, 12:45 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 3, 1:16 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 3, 2:34 PM EDT | Special Weather Statement | BTV | 26 min |
| Aug 3, 2:41 PM EDT | Severe Thunderstorm Warning | BTV | 21 min |
| Aug 3, 2:56 PM EDT | Severe Thunderstorm Warning | BTV | 34 min |
| Aug 3, 3:14 PM EDT | Special Weather Statement | BTV | 31 min |
| Aug 3, 3:18 PM EDT | Flash Flood Warning | BTV | 6 hr |
| Aug 3, 3:45 PM EDT | Severe Thunderstorm Warning | BTV | 19 min |
| Aug 3, 4:31 PM EDT | Special Weather Statement | BTV | 14 min |
| Aug 3, 7:57 PM EDT | Special Weather Statement | BTV | 63 min |
| Aug 4, 11:15 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 4, 12:18 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 25, 5:47 PM EDT | Special Weather Statement | BTV | 58 min |
| Sep 9, 11:07 AM EDT | Mesoscale Discussion | SPC | 83 min |
| Sep 9, 4:09 PM EDT | Severe Thunderstorm Warning | BTV | 44 min |
| Sep 26, 3:01 PM EDT | Frost Advisory | BTV | 17 hr |
| Sep 29, 9:34 PM EDT | Special Weather Statement | BTV | 56 min |
| Oct 3, 3:36 PM EDT | Freeze Warning | BTV | 16 hr |
| Nov 12, 7:47 PM EST | Special Weather Statement | BTV | 58 min |
| Dec 1, 1:38 PM EST | Freezing Rain Advisory | BTV | 9 hr |
| Dec 19, 6:03 PM EST | Special Weather Statement | BTV | 117 min |
| Dec 26, 3:18 AM EST | Winter Weather Advisory | BTV | 35 hr |
| Dec 27, 2:46 PM EST | Winter Weather Advisory | BTV | 52 hr |
| Dec 28, 3:36 PM EST | Winter Storm Warning | BTV | 27 hr |
| Dec 29, 3:42 AM 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.