Alert archive / Connecticut / Capitol Planning Region
Weather alerts in Capitol Planning Region, Connecticut, 2016
91 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Capitol Planning Region and its neighbors
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Alerts
- 91
- Warnings
- 39
- Watches
- 9
- Advisories
- 43
- Busiest month
- August23 alerts
- Busiest day
- August 11, 201610 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Capitol Planning Region, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 23 | 18 | 22% | 0 | ||
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Boston/Norton, MA: tornado warnings | 2 | 2 | 0% | 4 | 100% | 20 min |
| NWS Boston/Norton, MA: severe thunderstorm warnings | 127 | 86 | 32% | 515 | 66% | 25 min |
| NWS Boston/Norton, MA: flash flood warnings | 8 | 3 | 63% | 35 | 94% | 59 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 12, 3:35 PM EST | Wind Advisory | BOX | 24 hr |
| Jan 18, 3:57 AM EST | Wind Advisory | BOX | 39 hr |
| Jan 22, 3:36 PM EST | Winter Storm Warning | BOX | 39 hr |
| Jan 22, 3:36 PM EST | Winter Weather Advisory | BOX | 36 hr |
| Feb 4, 2:45 PM EST | Winter Storm Warning | BOX | 28 hr |
| Feb 4, 2:45 PM EST | Winter Weather Advisory | BOX | 28 hr |
| Feb 7, 2:36 PM EST | Winter Storm Warning | BOX | 28 hr |
| Feb 7, 2:36 PM EST | Winter Weather Advisory | BOX | 33 hr |
| Feb 11, 4:24 PM EST | Wind Chill Watch | BOX | 24 hr |
| Feb 12, 3:52 AM EST | Wind Chill Warning | BOX | 56 hr |
| Feb 14, 3:07 PM EST | Winter Weather Advisory | BOX | 46 hr |
| Feb 22, 2:41 PM EST | Winter Weather Advisory | BOX | 52 hr |
| Feb 24, 3:02 PM EST | Wind Advisory | BOX | 25 hr |
| Feb 24, 11:51 PM EST | Severe Thunderstorm Watch | SPC | 4 hr |
| Feb 25, 12:19 AM EST | Severe Thunderstorm Warning | BOX | 41 min |
| Feb 25, 12:25 AM EST | Severe Thunderstorm Warning | BOX | 35 min |
| Feb 25, 12:43 AM EST | Areal Flood Advisory | BOX | 3 hr |
| Feb 25, 12:55 AM EST | Severe Thunderstorm Warning | BOX | 50 min |
| Feb 25, 12:58 AM EST | Severe Thunderstorm Warning | BOX | 62 min |
| Feb 25, 1:54 AM EST | Severe Thunderstorm Warning | BOX | 51 min |
| Feb 25, 2:21 PM EST | River Flood Warning | BOX | 71 hr |
| Feb 25, 2:21 PM EST | River Flood Warning | BOX | 4 days |
| Mar 17, 6:00 AM EDT | Dense Fog Advisory | BOX | 3 hr |
| Mar 20, 3:52 AM EDT | Winter Weather Advisory | BOX | 33 hr |
| Mar 28, 4:49 AM EDT | Wind Advisory | BOX | 33 hr |
| Apr 1, 7:35 PM EDT | Severe Thunderstorm Warning | BOX | 40 min |
| Apr 2, 3:59 AM EDT | Wind Advisory | BOX | 11 hr |
| Apr 2, 2:51 PM EDT | Winter Weather Advisory | BOX | 19 hr |
| Apr 2, 2:58 PM EDT | High Wind Warning | BOX | 23 hr |
| Apr 3, 2:06 PM EDT | Wind Advisory | BOX | 5 hr |
| Apr 3, 2:53 PM EDT | Winter Weather Advisory | BOX | 30 hr |
| Apr 18, 4:30 PM EDT | Fire Weather Watch | BOX | 10 hr |
| Apr 19, 2:53 AM EDT | Red Flag Warning | BOX | 16 hr |
| Apr 19, 4:17 PM EDT | Fire Weather Watch | BOX | 11 hr |
| Apr 20, 3:09 AM EDT | Frost Advisory | BOX | 28 hr |
| Apr 20, 3:16 AM EDT | Red Flag Warning | BOX | 15 hr |
| Apr 23, 3:30 AM EDT | Frost Advisory | BOX | 25 hr |
| Apr 27, 7:24 AM EDT | Frost Advisory | BOX | 20 hr |
| Apr 27, 7:24 AM EDT | Freeze Warning | BOX | 20 hr |
| May 9, 3:56 AM EDT | Frost Advisory | BOX | 27 hr |
| Jun 21, 4:05 AM EDT | Severe Thunderstorm Warning | BOX | 40 min |
| Jul 1, 1:32 PM EDT | Tornado Watch | SPC | 8 hr |
| Jul 18, 12:05 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 18, 3:22 PM EDT | Severe Thunderstorm Warning | BOX | 38 min |
| Jul 18, 3:56 PM EDT | Severe Thunderstorm Warning | BOX | 64 min |
| Jul 22, 7:39 PM EDT | Severe Thunderstorm Warning | BOX | 51 min |
| Jul 22, 9:57 PM EDT | Severe Thunderstorm Warning | BOX | 48 min |
| Jul 24, 4:03 AM EDT | Heat Advisory | BOX | 38 hr |
| Jul 28, 2:50 PM EDT | Flash Flood Watch | BOX | 24 hr |
| Jul 30, 7:48 PM EDT | Areal Flood Advisory | BOX | 57 min |
| Aug 2, 6:17 AM EDT | Areal Flood Advisory | BOX | 118 min |
| Aug 10, 3:13 AM EDT | Heat Advisory | BOX | 40 hr |
| Aug 11, 1:47 PM EDT | Severe Thunderstorm Warning | BOX | 58 min |
| Aug 11, 3:44 PM EDT | Heat Advisory | BOX | 27 hr |
| Aug 11, 3:59 PM EDT | Areal Flood Advisory | BOX | 46 min |
| Aug 11, 4:22 PM EDT | Severe Thunderstorm Warning | BOX | 38 min |
| Aug 11, 4:34 PM EDT | Areal Flood Warning | BOX | 116 min |
| Aug 11, 4:41 PM EDT | Severe Thunderstorm Warning | BOX | 49 min |
| Aug 11, 5:29 PM EDT | Severe Thunderstorm Warning | BOX | 61 min |
| Aug 11, 5:51 PM EDT | Areal Flood Advisory | BOX | 114 min |
| Aug 11, 6:15 PM EDT | Flash Flood Warning | BOX | 2 hr |
| Aug 11, 6:19 PM EDT | Severe Thunderstorm Warning | BOX | 56 min |
| Aug 11, 8:41 PM EDT | Areal Flood Advisory | BOX | 64 min |
| Aug 12, 2:22 PM EDT | Excessive Heat Warning | BOX | 5 hr |
| Aug 12, 7:06 PM EDT | Heat Advisory | BOX | 24 hr |
| Aug 13, 4:31 AM EDT | Excessive Heat Warning | BOX | 14 hr |
| Aug 13, 4:09 PM EDT | Heat Advisory | BOX | 27 hr |
| Aug 13, 8:37 PM EDT | Severe Thunderstorm Warning | BOX | 53 min |
| Aug 13, 9:09 PM EDT | Severe Thunderstorm Warning | BOX | 44 min |
| Aug 13, 9:29 PM EDT | Severe Thunderstorm Warning | BOX | 46 min |
| Aug 14, 12:15 AM EDT | Severe Thunderstorm Warning | BOX | 45 min |
| Aug 14, 3:28 AM EDT | Excessive Heat Warning | BOX | 16 hr |
| Aug 16, 3:06 PM EDT | Severe Thunderstorm Warning | BOX | 39 min |
| Sep 11, 8:55 AM EDT | Severe Thunderstorm Warning | BOX | 50 min |
| Sep 11, 9:40 AM EDT | Severe Thunderstorm Warning | BOX | 50 min |
| Oct 10, 3:56 AM EDT | Frost Advisory | BOX | 29 hr |
| Oct 22, 4:04 AM EDT | Wind Advisory | BOX | 38 hr |
| Nov 11, 3:44 AM EST | Wind Advisory | BOX | 18 hr |
| Nov 19, 4:26 PM EST | Wind Advisory | BOX | 50 hr |
| Nov 30, 12:42 AM EST | Dense Fog Advisory | BOX | 8 hr |
| Dec 11, 4:02 AM EST | Winter Weather Advisory | BOX | 31 hr |
| Dec 14, 2:58 PM EST | High Wind Watch | BOX | 13 hr |
| Dec 15, 3:49 AM EST | High Wind Warning | BOX | 26 hr |
| Dec 15, 3:58 AM EST | Wind Chill Advisory | BOX | 29 hr |
| Dec 16, 4:29 AM EST | Winter Weather Advisory | BOX | 37 hr |
| Dec 17, 7:12 PM EST | Freezing Rain Advisory | BOX | 12 hr |
| Dec 18, 3:47 AM EST | Dense Fog Advisory | BOX | 6 hr |
| Dec 23, 2:48 PM EST | Winter Weather Advisory | BOX | 23 hr |
| Dec 25, 4:05 PM EST | Freezing Rain Advisory | BOX | 31 hr |
| Dec 27, 3:59 PM EST | Winter Storm Watch | BOX | 24 hr |
| Dec 28, 3:37 PM EST | Winter Weather Advisory | BOX | 31 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.