Alert archive / Connecticut / Capitol Planning Region
Weather alerts in Capitol Planning Region, Connecticut, 2011
149 weather alerts in 2011, 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 2011. Tap one for its archive.
- Alerts
- 149
- Warnings
- 68
- Watches
- 33
- Advisories
- 48
- Busiest month
- August24 alerts
- Busiest day
- June 9, 20118 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 1 tornado warnings covering Capitol Planning Region in 2011 had a tornado report inside them.
Capitol Planning Region, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 1 | 0% | 0 | ||
| Severe thunderstorm warnings | 19 | 13 | 32% | 0 | ||
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Boston/Norton, MA: tornado warnings | 13 | 4 | 69% | 10 | 80% | 16 min |
| NWS Boston/Norton, MA: severe thunderstorm warnings | 122 | 72 | 41% | 240 | 77% | 26 min |
| NWS Boston/Norton, MA: flash flood warnings | 13 | 3 | 77% | 19 | 58% | 69 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 6, 11:53 AM EST | Winter Storm Watch | BOX | 16 hr |
| Jan 7, 3:47 AM EST | Winter Weather Advisory | BOX | 24 hr |
| Jan 7, 9:07 PM EST | Winter Storm Warning | BOX | 6 hr |
| Jan 10, 4:38 AM EST | Winter Storm Watch | BOX | 36 hr |
| Jan 11, 3:57 AM EST | Winter Storm Warning | BOX | 40 hr |
| Jan 17, 3:57 AM EST | Winter Storm Watch | BOX | 12 hr |
| Jan 17, 3:57 PM EST | Winter Storm Warning | BOX | 31 hr |
| Jan 20, 3:37 AM EST | Winter Weather Advisory | BOX | 32 hr |
| Jan 20, 3:50 PM EST | Winter Storm Warning | BOX | 21 hr |
| Jan 22, 4:08 PM EST | Wind Chill Watch | BOX | 23 hr |
| Jan 23, 3:18 PM EST | Wind Chill Warning | BOX | 20 hr |
| Jan 25, 4:13 AM EST | Winter Storm Watch | BOX | 31 hr |
| Jan 25, 3:48 PM EST | Winter Storm Warning | BOX | 41 hr |
| Jan 31, 4:43 AM EST | Winter Storm Watch | BOX | 12 hr |
| Jan 31, 4:52 PM EST | Winter Storm Warning | BOX | 45 hr |
| Feb 2, 6:16 PM EST | Winter Weather Advisory | BOX | 6 hr |
| Feb 5, 3:56 AM EST | Winter Weather Advisory | BOX | 20 hr |
| Feb 14, 4:29 AM EST | Wind Advisory | BOX | 29 hr |
| Feb 18, 4:06 AM EST | Wind Advisory | BOX | 48 hr |
| Feb 20, 4:11 PM EST | Winter Weather Advisory | BOX | 18 hr |
| Feb 24, 1:49 PM EST | Flood Watch | BOX | 26 hr |
| Feb 25, 10:05 AM EST | Areal Flood Advisory | BOX | 4 hr |
| Feb 25, 2:02 PM EST | Areal Flood Advisory | BOX | 3 hr |
| Feb 27, 2:27 PM EST | Winter Weather Advisory | BOX | 22 hr |
| Feb 27, 4:09 PM EST | Flood Watch | BOX | 24 hr |
| Mar 6, 5:35 AM EST | Flood Watch | BOX | 25 hr |
| Mar 6, 1:27 PM EST | River Flood Warning | BOX | 30 hr |
| Mar 6, 5:14 PM EST | River Flood Warning | BOX | 8 days |
| Mar 7, 1:26 AM EST | Areal Flood Advisory | BOX | 6 hr |
| Mar 7, 7:05 AM EST | Areal Flood Advisory | BOX | 3 hr |
| Mar 7, 8:50 AM EST | River Flood Warning | BOX | 37 hr |
| Mar 7, 9:41 AM EST | Areal Flood Warning | BOX | 24 hr |
| Mar 7, 12:10 PM EST | River Flood Warning | BOX | 21 hr |
| Mar 7, 12:10 PM EST | River Flood Warning | BOX | 8 days |
| Mar 7, 12:10 PM EST | River Flood Warning | BOX | 9 days |
| Mar 10, 3:53 AM EST | Flood Watch | BOX | 34 hr |
| Mar 11, 5:59 AM EST | River Flood Warning | BOX | 12 hr |
| Mar 11, 7:46 AM EST | Areal Flood Warning | BOX | 6 hr |
| Mar 17, 3:48 PM EDT | Wind Advisory | BOX | 26 hr |
| Mar 19, 6:44 PM EDT | River Flood Warning | BOX | 3 days |
| Mar 19, 8:35 PM EDT | River Flood Warning | BOX | 61 hr |
| Mar 23, 4:19 AM EDT | Winter Weather Advisory | BOX | 21 hr |
| Mar 28, 4:04 AM EDT | Red Flag Warning | BOX | 14 hr |
| Mar 30, 4:22 AM EDT | Winter Storm Watch | BOX | 24 hr |
| Mar 31, 4:13 AM EDT | Winter Weather Advisory | BOX | 32 hr |
| Apr 12, 1:37 PM EDT | River Flood Watch | BOX | 8 hr |
| Apr 12, 1:37 PM EDT | River Flood Watch | BOX | 8 hr |
| Apr 12, 1:37 PM EDT | River Flood Watch | BOX | 8 hr |
| Apr 12, 9:58 PM EDT | River Flood Warning | BOX | 48 hr |
| Apr 12, 9:58 PM EDT | River Flood Warning | BOX | 9 days |
| Apr 12, 9:58 PM EDT | River Flood Warning | BOX | 11 days |
| Apr 16, 3:40 AM EDT | Wind Advisory | BOX | 27 hr |
| Apr 17, 12:15 AM EDT | Areal Flood Advisory | BOX | 7 hr |
| Apr 17, 2:05 AM EDT | River Flood Warning | BOX | 50 hr |
| Apr 28, 12:34 PM EDT | River Flood Warning | BOX | 5 days |
| Apr 28, 12:34 PM EDT | River Flood Warning | BOX | 6 days |
| May 5, 3:49 PM EDT | Frost Advisory | BOX | 15 hr |
| May 17, 4:12 PM EDT | Flood Watch | BOX | 36 hr |
| May 17, 9:33 PM EDT | Areal Flood Advisory | BOX | 3 hr |
| May 17, 11:11 PM EDT | Areal Flood Advisory | BOX | 3 hr |
| May 19, 1:17 AM EDT | Areal Flood Advisory | BOX | 106 min |
| May 19, 1:16 PM EDT | River Flood Warning | BOX | 51 hr |
| May 20, 4:37 PM EDT | Areal Flood Advisory | BOX | 66 min |
| May 21, 12:03 AM EDT | Dense Fog Advisory | BOX | 9 hr |
| May 30, 7:31 AM EDT | Severe Thunderstorm Warning | BOX | 44 min |
| May 30, 8:02 AM EDT | Areal Flood Advisory | BOX | 2 hr |
| Jun 1, 12:58 PM EDT | Tornado Watch | SPC | 7 hr |
| Jun 1, 4:18 PM EDT | Severe Thunderstorm Warning | BOX | 42 min |
| Jun 1, 4:30 PM EDT | Tornado Warning | BOX | 45 min |
| Jun 1, 7:40 PM EDT | Tornado Watch | SPC | 2 hr |
| Jun 1, 7:59 PM EDT | Areal Flood Advisory | BOX | 66 min |
| Jun 1, 8:10 PM EDT | Severe Thunderstorm Warning | BOX | 44 min |
| Jun 8, 6:45 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 8, 8:12 PM EDT | Severe Thunderstorm Warning | BOX | 48 min |
| Jun 9, 12:37 AM EDT | Severe Thunderstorm Warning | BOX | 38 min |
| Jun 9, 1:04 AM EDT | Severe Thunderstorm Warning | BOX | 41 min |
| Jun 9, 2:34 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 9, 4:00 PM EDT | Severe Thunderstorm Warning | BOX | 60 min |
| Jun 9, 4:39 PM EDT | Severe Thunderstorm Warning | BOX | 66 min |
| Jun 9, 4:46 PM EDT | Areal Flood Advisory | BOX | 3 hr |
| Jun 9, 4:54 PM EDT | Severe Thunderstorm Warning | BOX | 54 min |
| Jun 14, 2:57 AM EDT | Areal Flood Advisory | BOX | 6 hr |
| Jun 17, 5:51 PM EDT | Areal Flood Advisory | BOX | 2 hr |
| Jun 25, 6:08 PM EDT | Areal Flood Advisory | BOX | 2 hr |
| Jul 6, 1:29 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 6, 10:34 PM EDT | Severe Thunderstorm Warning | BOX | 41 min |
| Jul 8, 1:51 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 8, 4:25 PM EDT | Areal Flood Advisory | BOX | 6 hr |
| Jul 19, 4:25 PM EDT | Excessive Heat Watch | BOX | 48 hr |
| Jul 20, 4:31 PM EDT | Heat Advisory | BOX | 28 hr |
| Jul 21, 4:51 PM EDT | Excessive Heat Warning | BOX | 27 hr |
| Jul 23, 3:38 AM EDT | Heat Advisory | BOX | 13 hr |
| Jul 26, 2:30 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 26, 4:09 PM EDT | Severe Thunderstorm Warning | BOX | 66 min |
| Jul 26, 4:52 PM EDT | Severe Thunderstorm Warning | BOX | 53 min |
| Jul 26, 4:59 PM EDT | Areal Flood Advisory | BOX | 98 min |
| Aug 1, 2:13 PM EDT | Severe Thunderstorm Warning | BOX | 47 min |
| Aug 1, 2:19 PM EDT | Flash Flood Warning | BOX | 116 min |
| Aug 1, 2:34 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 1, 3:41 PM EDT | Severe Thunderstorm Warning | BOX | 49 min |
| Aug 1, 4:15 PM EDT | Areal Flood Advisory | BOX | 3 hr |
| Aug 1, 4:18 PM EDT | Severe Thunderstorm Warning | BOX | 29 min |
| Aug 1, 4:35 PM EDT | Severe Thunderstorm Warning | BOX | 24 min |
| Aug 1, 5:10 PM EDT | Severe Thunderstorm Warning | BOX | 35 min |
| Aug 5, 6:29 PM EDT | Areal Flood Advisory | BOX | 119 min |
| Aug 14, 4:21 PM EDT | Flood Watch | BOX | 27 hr |
| Aug 15, 6:07 AM EDT | Areal Flood Warning | BOX | 3 hr |
| Aug 21, 1:20 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 21, 1:39 PM EDT | Severe Thunderstorm Warning | BOX | 66 min |
| Aug 21, 3:40 PM EDT | Severe Thunderstorm Warning | BOX | 35 min |
| Aug 26, 3:10 AM EDT | Flood Watch | BOX | 63 hr |
| Aug 26, 5:10 AM EDT | Tropical Storm Watch | BOX | 30 hr |
| Aug 26, 5:33 PM EDT | Tropical Storm Warning | BOX | 54 hr |
| Aug 28, 1:24 AM EDT | Areal Flood Warning | BOX | 24 hr |
| Aug 28, 5:02 AM EDT | River Flood Warning | BOX | 32 hr |
| Aug 28, 5:02 AM EDT | River Flood Warning | BOX | 4 days |
| Aug 28, 1:38 PM EDT | River Flood Warning | BOX | 51 hr |
| Aug 28, 5:43 PM EDT | River Flood Warning | BOX | 6 days |
| Aug 28, 5:43 PM EDT | River Flood Warning | BOX | 67 hr |
| Aug 28, 5:43 PM EDT | River Flood Warning | BOX | 5 days |
| Sep 5, 3:51 AM EDT | Flash Flood Watch | BOX | 24 hr |
| Sep 7, 4:48 AM EDT | River Flood Warning | BOX | 5 days |
| Sep 7, 12:44 PM EDT | River Flood Warning | BOX | 4 days |
| Sep 7, 4:02 PM EDT | Flood Watch | BOX | 20 hr |
| Sep 7, 10:50 PM EDT | River Flood Warning | BOX | 53 hr |
| Sep 8, 4:43 AM EDT | Areal Flood Advisory | BOX | 4 hr |
| Sep 8, 8:27 AM EDT | Areal Flood Warning | BOX | 11 hr |
| Sep 8, 8:31 AM EDT | River Flood Warning | BOX | 8 hr |
| Sep 8, 8:31 AM EDT | River Flood Warning | BOX | 65 hr |
| Sep 8, 11:20 AM EDT | River Flood Warning | BOX | 8 hr |
| Sep 15, 1:22 AM EDT | Areal Flood Advisory | BOX | 62 min |
| Sep 22, 4:23 PM EDT | Flood Watch | BOX | 36 hr |
| Sep 23, 3:52 PM EDT | Areal Flood Advisory | BOX | 3 hr |
| Sep 27, 3:12 AM EDT | Dense Fog Advisory | BOX | 7 hr |
| Sep 28, 9:21 PM EDT | Areal Flood Advisory | BOX | 3 hr |
| Sep 29, 1:56 PM EDT | Areal Flood Advisory | BOX | 2 hr |
| Sep 30, 7:24 PM EDT | Areal Flood Advisory | BOX | 79 min |
| Sep 30, 8:12 PM EDT | Areal Flood Advisory | BOX | 3 hr |
| Oct 2, 11:03 AM EDT | River Flood Warning | BOX | 9 hr |
| Oct 28, 4:00 AM EDT | Winter Storm Watch | BOX | 25 hr |
| Oct 28, 3:27 PM EDT | Winter Storm Warning | BOX | 38 hr |
| Dec 4, 9:12 PM EST | Dense Fog Advisory | BOX | 12 hr |
| Dec 7, 12:17 PM EST | Flood Watch | BOX | 19 hr |
| Dec 8, 1:23 AM EST | Areal Flood Advisory | BOX | 4 hr |
| Dec 8, 3:41 AM EST | Wind Advisory | BOX | 6 hr |
| Dec 8, 4:39 AM EST | River Flood Warning | BOX | 25 hr |
| Dec 8, 11:45 AM EST | River Flood Warning | BOX | 57 hr |
| Dec 15, 4:03 PM EST | Wind Advisory | BOX | 20 hr |
| Dec 27, 4:16 AM EST | Wind Advisory | BOX | 21 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 19 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 7 |
| Tornado Watch | 2 |
| Flooding | |
| Areal Flood Warning | 5 |
| Flash Flood Warning | 1 |
| River Flood Warning | 31 |
| Flash Flood Watch | 1 |
| Flood Watch | 10 |
| River Flood Watch | 3 |
| Areal Flood Advisory | 27 |
| Winter | |
| Winter Storm Warning | 7 |
| Winter Storm Watch | 7 |
| Winter Weather Advisory | 8 |
| Heat | |
| Excessive Heat Warning | 1 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 2 |
| Cold | |
| Wind Chill Warning | 1 |
| Wind Chill Watch | 1 |
| Frost Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 7 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
| Tropical | |
| Tropical Storm Warning | 1 |
| Tropical Storm Watch | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20102012
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.