Alert archive / Connecticut / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Connecticut, 2020
111 severe thunderstorm warnings in 2020. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Severe Thunderstorm Warnings
- 111
- Busiest month
- July28 severe thunderstorm warnings
- Busiest day
- August 27, 202010 severe thunderstorm warnings
Over time
By month
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 | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 8:34 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 26 min |
| Mar 29, 8:52 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 38 min |
| Apr 9, 3:09 PM EDT | Severe Thunderstorm Warning | OKX | Southeastern Connecticut Planning Region | 36 min |
| Apr 21, 2:40 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region | 35 min |
| Apr 21, 3:25 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region, Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region | 50 min |
| Apr 21, 4:08 PM EDT | Severe Thunderstorm Warning | OKX | Lower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region | 52 min |
| May 11, 7:24 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 25 min |
| May 15, 7:13 PM EDT | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 47 min |
| May 15, 7:59 PM EDT | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 61 min |
| May 15, 8:15 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 60 min |
| May 15, 8:30 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region | 45 min |
| May 15, 8:34 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 41 min |
| May 15, 8:37 PM EDT | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 38 min |
| May 15, 9:08 PM EDT | Severe Thunderstorm Warning | OKX | Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region | 29 min |
| May 15, 9:14 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 24 min |
| Jun 3, 7:57 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region, Naugatuck Valley Planning Region | 48 min |
| Jun 3, 8:29 PM EDT | Severe Thunderstorm Warning | OKX | Lower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region | 46 min |
| Jun 6, 2:39 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 66 min |
| Jun 6, 2:51 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 54 min |
| Jun 22, 3:39 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 40 min |
| Jun 28, 3:44 PM EDT | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 48 min |
| Jun 28, 4:22 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region | 38 min |
| Jun 28, 5:02 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 58 min |
| Jun 28, 5:04 PM EDT | Severe Thunderstorm Warning | OKX | Naugatuck Valley Planning Region | 41 min |
| Jun 28, 5:13 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region, Naugatuck Valley Planning Region | 47 min |
| Jun 28, 5:58 PM EDT | Severe Thunderstorm Warning | OKX | Naugatuck Valley Planning Region | 34 min |
| Jun 28, 6:04 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 56 min |
| Jun 28, 8:45 PM EDT | Severe Thunderstorm Warning | OKX | Southeastern Connecticut Planning Region | 45 min |
| Jun 29, 2:49 PM EDT | Severe Thunderstorm Warning | OKX | Southeastern Connecticut Planning Region | 22 min |
| Jun 29, 2:50 PM EDT | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 42 min |
| Jun 29, 3:06 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 36 min |
| Jun 29, 3:08 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region, Naugatuck Valley Planning Region | 31 min |
| Jun 29, 3:36 PM EDT | Severe Thunderstorm Warning | OKX | Southeastern Connecticut Planning Region | 54 min |
| Jun 29, 3:38 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 40 min |
| Jun 29, 3:42 PM EDT | Severe Thunderstorm Warning | OKX | Southeastern Connecticut Planning Region | 63 min |
| Jun 29, 4:06 PM EDT | Severe Thunderstorm Warning | OKX | Southeastern Connecticut Planning Region | 39 min |
| Jul 1, 2:29 PM EDT | Severe Thunderstorm Warning | OKX | Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Southeastern Connecticut Planning Region | 33 min |
| Jul 1, 2:50 PM EDT | Severe Thunderstorm Warning | OKX | Lower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region | 40 min |
| Jul 1, 3:24 PM EDT | Severe Thunderstorm Warning | OKX | Southeastern Connecticut Planning Region | 26 min |
| Jul 1, 3:59 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 46 min |
| Jul 1, 7:03 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 31 min |
| Jul 3, 6:08 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region | 27 min |
| Jul 6, 7:09 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 66 min |
| Jul 13, 2:56 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 64 min |
| Jul 13, 7:06 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 54 min |
| Jul 14, 12:05 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 55 min |
| Jul 14, 1:08 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 67 min |
| Jul 14, 2:30 PM EDT | Severe Thunderstorm Warning | OKX | Southeastern Connecticut Planning Region | 23 min |
| Jul 23, 2:56 PM EDT | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 64 min |
| Jul 23, 4:12 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 63 min |
| Jul 23, 4:38 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 67 min |
| Jul 23, 5:00 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 60 min |
| Jul 23, 5:07 PM EDT | Severe Thunderstorm Warning | OKX | Southeastern Connecticut Planning Region | 53 min |
| Jul 23, 6:31 PM EDT | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 59 min |
| Jul 23, 6:49 PM EDT | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 26 min |
| Jul 23, 7:15 PM EDT | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 30 min |
| Jul 23, 7:16 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 59 min |
| Jul 23, 9:04 PM EDT | Severe Thunderstorm Warning | OKX | Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region | 28 min |
| Jul 23, 9:07 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region, Naugatuck Valley Planning Region | 38 min |
| Jul 23, 9:43 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region, Naugatuck Valley Planning Region | 62 min |
| Jul 28, 3:49 PM EDT | Severe Thunderstorm Warning | OKX | Lower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region | 40 min |
| Jul 30, 3:37 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region | 38 min |
| Jul 30, 4:08 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region | 52 min |
| Jul 30, 4:30 PM EDT | Severe Thunderstorm Warning | OKX | Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Southeastern Connecticut Planning Region | 44 min |
| Aug 2, 2:17 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 58 min |
| Aug 2, 3:02 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 43 min |
| Aug 2, 3:41 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 49 min |
| Aug 2, 5:22 PM EDT | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 53 min |
| Aug 2, 6:46 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 59 min |
| Aug 3, 9:45 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region, Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region | 60 min |
| Aug 22, 2:48 PM EDT | Severe Thunderstorm Warning | OKX | Lower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region | 27 min |
| Aug 22, 6:35 PM EDT | Severe Thunderstorm Warning | OKX | Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region | 55 min |
| Aug 24, 1:53 PM EDT | Severe Thunderstorm Warning | OKX | Lower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region | 52 min |
| Aug 24, 2:39 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region, Naugatuck Valley Planning Region | 39 min |
| Aug 24, 2:59 PM EDT | Severe Thunderstorm Warning | OKX | Lower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region | 46 min |
| Aug 24, 4:49 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 24 min |
| Aug 25, 5:14 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region | 46 min |
| Aug 25, 6:23 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 52 min |
| Aug 27, 2:24 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 36 min |
| Aug 27, 3:17 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region, Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region | 58 min |
| Aug 27, 3:19 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 41 min |
| Aug 27, 3:40 PM EDT | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 32 min |
| Aug 27, 4:11 PM EDT | Severe Thunderstorm Warning | OKX | Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Southeastern Connecticut Planning Region | 64 min |
| Aug 27, 4:27 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region | 48 min |
| Aug 27, 5:12 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region | 48 min |
| Aug 27, 5:29 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region | 46 min |
| Aug 27, 6:54 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region | 51 min |
| Aug 27, 7:21 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region | 39 min |
| Aug 29, 7:57 PM EDT | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 63 min |
| Aug 29, 8:09 PM EDT | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 66 min |
| Aug 29, 8:37 PM EDT | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 53 min |
| Aug 29, 8:52 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 53 min |
| Oct 7, 3:56 PM EDT | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 34 min |
| Oct 7, 4:27 PM EDT | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 33 min |
| Oct 7, 4:57 PM EDT | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 33 min |
| Oct 7, 5:22 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 38 min |
| Oct 7, 5:25 PM EDT | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 20 min |
| Oct 7, 5:30 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region, Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region | 45 min |
| Oct 7, 5:38 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 40 min |
| Oct 7, 5:47 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 58 min |
| Oct 7, 6:03 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 42 min |
| Nov 15, 8:18 PM EST | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 57 min |
| Nov 15, 8:41 PM EST | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region, Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region | 64 min |
| Nov 15, 8:52 PM EST | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 53 min |
| Nov 15, 9:14 PM EST | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 16 min |
| Nov 15, 9:29 PM EST | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 34 min |
| Nov 15, 9:41 PM EST | Severe Thunderstorm Warning | OKX | Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Southeastern Connecticut Planning Region | 49 min |
| Nov 15, 9:45 PM EST | Severe Thunderstorm Warning | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 45 min |
| Nov 15, 10:22 PM EST | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 53 min |
| Nov 15, 10:24 PM EST | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 66 min |
| Nov 15, 10:30 PM EST | Severe Thunderstorm Warning | OKX | Southeastern Connecticut Planning Region | 16 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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. Rebuilt daily.