Alert archive / Vermont / Caledonia County
Weather alerts in Caledonia County, Vermont, 2008
138 weather alerts in 2008, 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 2008. Tap one for its archive.
- Alerts
- 138
- Warnings
- 33
- Watches
- 27
- Advisories
- 37
- Busiest month
- June23 alerts
- Busiest day
- June 10, 20088 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, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 14 | 10 | 29% | 5 | 60% | 37 min |
| Flash flood warnings | 3 | 2 | 33% | 4 | 0% |
Each office's whole area, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Burlington, VT: severe thunderstorm warnings | 100 | 55 | 45% | 139 | 88% | 26 min |
| NWS Burlington, VT: flash flood warnings | 18 | 11 | 39% | 34 | 76% | 98 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, 4:39 AM EST | Flood Watch | BTV | 47 hr |
| Jan 9, 4:16 AM EST | Wind Advisory | BTV | 18 hr |
| Jan 10, 4:45 AM EST | Winter Weather Advisory | BTV | 32 hr |
| Jan 11, 8:03 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 13, 3:55 PM EST | Snow Advisory | BTV | 23 hr |
| Jan 29, 8:52 AM EST | Winter Weather Advisory | BTV | 5 hr |
| Jan 29, 4:32 PM EST | Wind Advisory | BTV | 22 hr |
| Jan 29, 10:07 PM EST | Freezing Rain Advisory | BTV | 12 hr |
| Jan 31, 3:33 AM EST | Winter Storm Watch | BTV | 12 hr |
| Jan 31, 3:59 PM EST | Winter Storm Warning | BTV | 36 hr |
| Feb 1, 1:15 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 1, 7:33 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 4, 10:35 PM EST | Winter Weather Advisory | BTV | 12 hr |
| Feb 5, 1:10 AM EST | Mesoscale Discussion | SPC | 3 hr |
| Feb 5, 6:57 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 5, 4:34 PM EST | Winter Weather Advisory | BTV | 39 hr |
| Feb 5, 10:52 PM EST | Winter Storm Warning | BTV | 32 hr |
| Feb 7, 1:31 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 9, 3:37 AM EST | Snow Advisory | BTV | 48 hr |
| Feb 11, 4:47 AM EST | Winter Storm Watch | BTV | 24 hr |
| Feb 12, 5:00 AM EST | Winter Storm Warning | BTV | 39 hr |
| Feb 13, 1:31 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 13, 1:21 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 17, 9:43 AM EST | Winter Weather Advisory | BTV | 18 hr |
| Feb 25, 3:42 AM EST | Winter Storm Watch | BTV | 12 hr |
| Feb 25, 4:08 PM EST | Winter Storm Warning | BTV | 47 hr |
| Feb 26, 6:18 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 28, 3:37 PM EST | Winter Storm Watch | BTV | 13 hr |
| Feb 29, 4:40 AM EST | Winter Storm Warning | BTV | 32 hr |
| Mar 3, 4:30 PM EST | Winter Storm Watch | BTV | 13 hr |
| Mar 4, 5:09 AM EST | Winter Storm Warning | BTV | 33 hr |
| Mar 5, 7:42 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Mar 6, 3:02 PM EST | Winter Storm Watch | BTV | 24 hr |
| Mar 7, 3:06 PM EST | Winter Weather Advisory | BTV | 38 hr |
| Mar 18, 3:50 AM EDT | Winter Storm Watch | BTV | 12 hr |
| Mar 18, 3:50 AM EDT | Winter Weather Advisory | BTV | 36 hr |
| Mar 19, 3:59 PM EDT | Winter Weather Advisory | BTV | 45 hr |
| Mar 31, 3:47 PM EDT | Flood Watch | BTV | 37 hr |
| Apr 1, 4:20 AM EDT | Wind Advisory | BTV | 30 hr |
| Apr 11, 2:55 AM EDT | Flood Watch | BTV | 36 hr |
| Apr 19, 12:33 AM EDT | Areal Flood Advisory | BTV | 36 hr |
| Apr 29, 10:23 AM EDT | Areal Flood Warning | BTV | 18 hr |
| Apr 29, 6:42 PM EDT | River Flood Warning | BTV | 9 hr |
| May 27, 2:49 PM EDT | Frost Advisory | BTV | 16 hr |
| May 28, 3:41 PM EDT | Frost Advisory | BTV | 15 hr |
| Jun 10, 10:02 AM EDT | Tornado Watch | SPC | 8 hr |
| Jun 10, 3:05 PM EDT | Severe Thunderstorm Warning | BTV | 55 min |
| Jun 10, 3:37 PM EDT | Severe Thunderstorm Warning | BTV | 53 min |
| Jun 10, 3:49 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jun 10, 4:16 PM EDT | Severe Thunderstorm Warning | BTV | 24 min |
| Jun 10, 5:47 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 10, 7:57 PM EDT | Severe Thunderstorm Warning | BTV | 63 min |
| Jun 10, 7:57 PM EDT | Severe Thunderstorm Warning | BTV | 48 min |
| Jun 12, 3:01 PM EDT | Frost Advisory | BTV | 15 hr |
| Jun 16, 11:28 AM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jun 16, 2:28 PM EDT | Severe Thunderstorm Warning | BTV | 62 min |
| Jun 16, 4:30 PM EDT | Severe Thunderstorm Warning | BTV | 60 min |
| Jun 17, 10:44 AM EDT | Mesoscale Discussion | SPC | 61 min |
| Jun 22, 10:31 AM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 27, 12:10 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 27, 4:09 PM EDT | Severe Thunderstorm Warning | BTV | 51 min |
| Jun 27, 4:46 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Jun 29, 3:45 AM EDT | Flash Flood Watch | BTV | 20 hr |
| Jun 29, 7:13 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 29, 8:09 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 29, 9:30 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 29, 11:58 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 30, 12:15 AM EDT | Mesoscale Discussion | SPC | 90 min |
| Jul 9, 12:32 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jul 18, 1:24 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 18, 2:38 PM EDT | Severe Thunderstorm Warning | BTV | 67 min |
| Jul 18, 2:53 PM EDT | Severe Thunderstorm Warning | BTV | 67 min |
| Jul 18, 3:35 PM EDT | Severe Thunderstorm Warning | BTV | 55 min |
| Jul 18, 4:10 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 18, 4:21 PM EDT | Severe Thunderstorm Warning | BTV | 54 min |
| Jul 18, 7:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jul 18, 11:59 PM EDT | Areal Flood Advisory | BTV | 6 hr |
| Jul 19, 12:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 20, 4:12 AM EDT | Flash Flood Watch | BTV | 23 hr |
| Jul 20, 10:24 AM EDT | Areal Flood Advisory | BTV | 6 hr |
| Jul 20, 4:02 PM EDT | Areal Flood Advisory | BTV | 6 hr |
| Jul 20, 9:59 PM EDT | Areal Flood Advisory | BTV | 6 hr |
| Jul 22, 3:33 PM EDT | Flood Watch | BTV | 64 hr |
| Jul 24, 9:11 PM EDT | Areal Flood Warning | BTV | 6 hr |
| Jul 24, 9:38 PM EDT | Areal Flood Warning | BTV | 6 hr |
| Jul 26, 4:53 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 27, 11:42 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 27, 12:02 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 28, 1:58 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 2, 3:15 AM EDT | Flood Watch | BTV | 42 hr |
| Aug 2, 12:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Aug 2, 1:51 PM EDT | Areal Flood Advisory | BTV | 112 min |
| Aug 3, 6:35 AM EDT | Areal Flood Advisory | BTV | 4 hr |
| Aug 5, 3:23 PM EDT | Flash Flood Watch | BTV | 28 hr |
| Aug 6, 8:49 AM EDT | Flash Flood Warning | BTV | 6 hr |
| Aug 7, 1:17 PM EDT | Areal Flood Advisory | BTV | 3 hr |
| Aug 7, 1:46 PM EDT | Flash Flood Watch | BTV | 32 hr |
| Aug 7, 2:30 PM EDT | Flash Flood Warning | BTV | 6 hr |
| Aug 7, 3:09 PM EDT | Flash Flood Warning | BTV | 3 hr |
| Aug 7, 4:25 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Aug 9, 4:05 PM EDT | Flash Flood Watch | BTV | 52 hr |
| Aug 16, 12:56 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 18, 1:17 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Aug 18, 3:12 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 18, 7:45 PM EDT | Severe Thunderstorm Warning | BTV | 60 min |
| Aug 18, 8:42 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Aug 18, 8:44 PM EDT | Severe Thunderstorm Warning | BTV | 61 min |
| Sep 10, 3:32 AM EDT | Frost Advisory | BTV | 28 hr |
| Sep 14, 11:14 AM EDT | Wind Advisory | BTV | 23 hr |
| Sep 17, 2:49 PM EDT | Freeze Watch | BTV | 13 hr |
| Sep 18, 3:34 AM EDT | Freeze Warning | BTV | 28 hr |
| Oct 26, 3:31 AM EDT | Areal Flood Warning | BTV | 3 hr |
| Oct 28, 3:23 AM EDT | Winter Weather Advisory | BTV | 42 hr |
| Nov 23, 4:11 PM EST | High Wind Watch | BTV | 24 hr |
| Nov 24, 3:42 PM EST | High Wind Warning | BTV | 19 hr |
| Nov 24, 3:42 PM EST | Wind Advisory | BTV | 24 hr |
| Nov 30, 3:27 AM EST | Winter Weather Advisory | BTV | 24 hr |
| Nov 30, 6:16 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 1, 1:16 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 7, 3:45 PM EST | Wind Chill Advisory | BTV | 15 hr |
| Dec 10, 3:47 PM EST | Winter Storm Watch | BTV | 13 hr |
| Dec 11, 4:35 AM EST | Winter Storm Warning | BTV | 32 hr |
| Dec 11, 8:52 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 12, 12:50 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Dec 12, 6:20 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Dec 14, 9:39 PM EST | Winter Weather Advisory | BTV | 9 hr |
| Dec 16, 3:29 AM EST | Winter Weather Advisory | BTV | 35 hr |
| Dec 17, 6:36 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 18, 3:59 PM EST | Winter Storm Warning | BTV | 34 hr |
| Dec 19, 3:43 AM EST | Winter Weather Advisory | BTV | 22 hr |
| Dec 19, 6:46 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 20, 3:35 AM EST | Winter Storm Warning | BTV | 54 hr |
| Dec 21, 11:54 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 21, 6:11 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 22, 3:52 AM EST | Wind Chill Advisory | BTV | 18 hr |
| Dec 23, 3:41 AM EST | Winter Weather Advisory | BTV | 42 hr |
| Dec 24, 12:45 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 27, 3:32 AM EST | Freezing Rain Advisory | BTV | 12 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 archive20072009
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.