Alert archive / Vermont / Washington County
Weather alerts in Washington County, Vermont, 2010
103 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Washington County and its neighbors
Each county as a circle sized by its count in 2010. Tap one for its archive.
- Alerts
- 103
- Warnings
- 28
- Watches
- 13
- Advisories
- 33
- Busiest month
- July23 alerts
- Busiest day
- July 21, 201011 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Washington County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 14 | 13 | 7% | 5 | 60% | 20 min |
| Flash flood warnings | 3 | 0 | 100% | 0 |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Burlington, VT: tornado warnings | 3 | 0 | 100% | 1 | 0% | |
| NWS Burlington, VT: severe thunderstorm warnings | 46 | 28 | 39% | 130 | 88% | 28 min |
| NWS Burlington, VT: flash flood warnings | 8 | 0 | 100% | 0 |
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, 2:52 AM EST | Winter Storm Watch | BTV | 26 hr |
| Jan 2, 4:33 AM EST | Winter Storm Warning | BTV | 41 hr |
| Jan 2, 6:39 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 23, 2:52 PM EST | Flood Watch | BTV | 60 hr |
| Jan 24, 3:01 AM EST | Wind Advisory | BTV | 37 hr |
| Jan 25, 3:44 PM EST | Areal Flood Warning | BTV | 6 hr |
| Jan 28, 12:37 PM EST | Wind Advisory | BTV | 9 hr |
| Jan 28, 3:00 PM EST | Wind Chill Warning | BTV | 40 hr |
| Feb 23, 3:57 AM EST | Winter Storm Watch | BTV | 7 hr |
| Feb 23, 11:12 AM EST | Winter Storm Warning | BTV | 64 hr |
| Feb 24, 11:44 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 25, 4:00 AM EST | High Wind Watch | BTV | 11 hr |
| Feb 25, 4:00 AM EST | Winter Weather Advisory | BTV | 24 hr |
| Feb 25, 2:34 PM EST | High Wind Warning | BTV | 19 hr |
| Mar 22, 3:08 PM EDT | Flood Watch | BTV | 37 hr |
| Mar 23, 8:52 AM EDT | Areal Flood Advisory | BTV | 6 hr |
| Mar 23, 9:41 AM EDT | Areal Flood Warning | BTV | 9 hr |
| Apr 27, 4:28 AM EDT | Winter Storm Warning | BTV | 33 hr |
| Apr 27, 4:28 AM EDT | Winter Weather Advisory | BTV | 30 hr |
| May 4, 1:04 PM EDT | Severe Thunderstorm Warning | BTV | 41 min |
| May 4, 1:24 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 4, 5:51 PM EDT | Special Weather Statement | BTV | 54 min |
| May 4, 6:00 PM EDT | Severe Thunderstorm Warning | BTV | 45 min |
| May 4, 6:40 PM EDT | Special Weather Statement | BTV | 65 min |
| May 6, 11:10 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 10, 3:05 PM EDT | Freeze Warning | BTV | 16 hr |
| May 12, 4:06 AM EDT | Freeze Warning | BTV | 27 hr |
| May 16, 3:37 AM EDT | Frost Advisory | BTV | 28 hr |
| May 26, 3:17 PM EDT | Mesoscale Discussion | SPC | 58 min |
| May 26, 7:25 PM EDT | Mesoscale Discussion | SPC | 65 min |
| May 26, 7:45 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 26, 8:10 PM EDT | Severe Thunderstorm Warning | BTV | 65 min |
| May 26, 8:44 PM EDT | Severe Thunderstorm Warning | BTV | 61 min |
| May 26, 9:25 PM EDT | Special Weather Statement | BTV | 50 min |
| Jun 5, 12:17 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Jun 5, 1:00 PM EDT | Tornado Watch | SPC | 7 hr |
| Jun 5, 2:23 PM EDT | Severe Thunderstorm Warning | BTV | 67 min |
| Jun 8, 3:49 PM EDT | Frost Advisory | BTV | 15 hr |
| Jun 28, 4:31 AM EDT | Areal Flood Advisory | BTV | 2 hr |
| Jul 6, 3:04 AM EDT | Heat Advisory | BTV | 65 hr |
| Jul 8, 1:30 PM EDT | Areal Flood Advisory | BTV | 3 hr |
| Jul 9, 3:16 AM EDT | Flash Flood Watch | BTV | 32 hr |
| Jul 9, 12:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 10, 7:28 AM EDT | Areal Flood Advisory | BTV | 3 hr |
| Jul 13, 11:48 PM EDT | Areal Flood Advisory | BTV | 3 hr |
| Jul 14, 12:08 AM EDT | Flash Flood Warning | BTV | 8 days |
| Jul 17, 6:43 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jul 17, 9:16 PM EDT | Special Weather Statement | BTV | 59 min |
| Jul 19, 4:47 PM EDT | Severe Thunderstorm Warning | BTV | 58 min |
| Jul 19, 5:16 PM EDT | Severe Thunderstorm Warning | BTV | 44 min |
| Jul 19, 5:28 PM EDT | Areal Flood Advisory | BTV | 3 hr |
| Jul 21, 10:43 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 11:27 AM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 21, 1:59 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jul 21, 2:31 PM EDT | Severe Thunderstorm Warning | BTV | 59 min |
| Jul 21, 2:57 PM EDT | Severe Thunderstorm Warning | BTV | 63 min |
| Jul 21, 3:27 PM EDT | Severe Thunderstorm Warning | BTV | 63 min |
| Jul 21, 3:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jul 21, 3:58 PM EDT | Severe Thunderstorm Warning | BTV | 62 min |
| Jul 21, 4:18 PM EDT | Severe Thunderstorm Warning | BTV | 57 min |
| Jul 21, 4:42 PM EDT | Areal Flood Advisory | BTV | 3 hr |
| Jul 21, 5:00 PM EDT | Severe Thunderstorm Warning | BTV | 60 min |
| Aug 2, 8:38 PM EDT | Special Weather Statement | BTV | 52 min |
| Aug 3, 1:16 AM EDT | Areal Flood Advisory | BTV | 7 hr |
| Aug 3, 3:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Aug 4, 12:55 AM EDT | Areal Flood Advisory | BTV | 4 hr |
| Aug 9, 5:14 PM EDT | Special Weather Statement | BTV | 46 min |
| Aug 9, 5:23 PM EDT | Severe Thunderstorm Warning | BTV | 40 min |
| Aug 9, 5:37 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Aug 9, 7:55 PM EDT | Areal Flood Advisory | BTV | 3 hr |
| Aug 10, 3:35 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Aug 10, 6:00 PM EDT | Special Weather Statement | BTV | 60 min |
| Aug 16, 8:40 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 16, 11:14 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 16, 12:05 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Aug 16, 2:17 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Sep 17, 4:23 AM EDT | Frost Advisory | BTV | 26 hr |
| Sep 20, 3:45 AM EDT | Frost Advisory | BTV | 27 hr |
| Sep 28, 6:39 PM EDT | Special Weather Statement | BTV | 51 min |
| Sep 29, 4:12 AM EDT | Flood Watch | BTV | 70 hr |
| Sep 30, 10:16 PM EDT | Special Weather Statement | BTV | 74 min |
| Sep 30, 11:18 PM EDT | Special Weather Statement | BTV | 57 min |
| Oct 1, 12:00 AM EDT | Flash Flood Warning | BTV | 6 hr |
| Oct 1, 5:45 AM EDT | Areal Flood Warning | BTV | 17 hr |
| Oct 2, 8:43 PM EDT | Frost Advisory | BTV | 10 hr |
| Oct 3, 3:33 PM EDT | Frost Advisory | BTV | 15 hr |
| Oct 14, 3:24 PM EDT | Flood Watch | BTV | 48 hr |
| Oct 15, 3:38 AM EDT | Wind Advisory | BTV | 19 hr |
| Oct 15, 10:19 AM EDT | Winter Weather Advisory | BTV | 17 hr |
| Nov 7, 2:10 PM EST | Winter Weather Advisory | BTV | 32 hr |
| Nov 8, 4:51 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Nov 17, 11:09 AM EST | Wind Advisory | BTV | 16 hr |
| Nov 25, 3:11 AM EST | Winter Weather Advisory | BTV | 32 hr |
| Nov 26, 5:20 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Nov 30, 3:48 PM EST | Wind Advisory | BTV | 26 hr |
| Dec 1, 5:58 PM EST | Wind Advisory | BTV | 4 hr |
| Dec 3, 3:13 PM EST | Winter Weather Advisory | BTV | 21 hr |
| Dec 6, 10:36 AM EST | Winter Storm Warning | BTV | 28 hr |
| Dec 6, 10:36 AM EST | Winter Weather Advisory | BTV | 24 hr |
| Dec 11, 2:51 PM EST | Wind Advisory | BTV | 29 hr |
| Dec 13, 2:59 AM EST | Winter Weather Advisory | BTV | 31 hr |
| Dec 22, 5:41 PM EST | Winter Weather Advisory | BTV | 16 hr |
| Dec 26, 3:06 AM EST | Winter Storm Warning | BTV | 33 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 archive20092011
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.