Alert archive / Massachusetts / Bristol County
Weather alerts in Bristol County, Massachusetts, 2014
148 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Bristol County and its neighbors
Each county as a circle sized by its count in 2014. Tap one for its archive.
- Alerts
- 148
- Warnings
- 26
- Watches
- 23
- Advisories
- 66
- Busiest month
- January22 alerts
- Busiest day
- July 16, 20147 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Bristol County, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 4 | 1 | 75% | 1 | 0% | |
| Flash flood warnings | 9 | 6 | 33% | 62 | 90% | 73 min |
Each office's whole area, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Boston/Norton, MA: tornado warnings | 8 | 0 | 100% | 14 | 0% | |
| NWS Boston/Norton, MA: severe thunderstorm warnings | 120 | 73 | 39% | 398 | 66% | 26 min |
| NWS Boston/Norton, MA: flash flood warnings | 48 | 20 | 58% | 192 | 78% | 78 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 1, 3:57 AM EST | Winter Storm Watch | BOX | 12 hr |
| Jan 1, 4:10 PM EST | Winter Storm Warning | BOX | 42 hr |
| Jan 2, 10:49 AM EST | Wind Chill Advisory | BOX | 46 hr |
| Jan 2, 8:43 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 3, 3:39 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 6, 3:13 AM EST | Dense Fog Advisory | BOX | 12 hr |
| Jan 7, 1:27 AM EST | Special Weather Statement | BOX | 93 min |
| Jan 7, 2:30 AM EST | Special Weather Statement | BOX | 90 min |
| Jan 10, 4:27 PM EST | Wind Advisory | BOX | 30 hr |
| Jan 11, 3:31 PM EST | Special Weather Statement | BOX | 59 min |
| Jan 11, 4:06 PM EST | Special Weather Statement | BOX | 39 min |
| Jan 11, 4:09 PM EST | Special Weather Statement | BOX | 36 min |
| Jan 11, 6:42 PM EST | Areal Flood Advisory | BOX | 2 hr |
| Jan 16, 12:36 AM EST | Dense Fog Advisory | BOX | 7 hr |
| Jan 16, 2:37 PM EST | Dense Fog Advisory | BOX | 17 hr |
| Jan 20, 4:03 AM EST | Winter Storm Watch | BOX | 12 hr |
| Jan 20, 3:57 PM EST | Winter Storm Warning | BOX | 42 hr |
| Jan 20, 3:57 PM EST | Winter Storm Warning | BOX | 42 hr |
| Jan 21, 4:28 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 21, 9:58 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 24, 3:56 PM EST | Wind Advisory | BOX | 27 hr |
| Jan 28, 4:13 AM EST | Winter Weather Advisory | BOX | 32 hr |
| Feb 3, 3:59 AM EST | Winter Storm Watch | BOX | 24 hr |
| Feb 3, 3:59 AM EST | Winter Weather Advisory | BOX | 15 hr |
| Feb 4, 4:15 AM EST | Winter Storm Warning | BOX | 43 hr |
| Feb 5, 3:23 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 11, 3:51 PM EST | Winter Storm Watch | BOX | 25 hr |
| Feb 12, 4:35 AM EST | Winter Storm Warning | BOX | 50 hr |
| Feb 12, 4:23 PM EST | Winter Weather Advisory | BOX | 26 hr |
| Feb 12, 4:25 PM EST | Wind Advisory | BOX | 33 hr |
| Feb 14, 3:49 AM EST | Wind Advisory | BOX | 14 hr |
| Feb 14, 4:24 AM EST | Winter Storm Watch | BOX | 11 hr |
| Feb 14, 3:33 PM EST | Winter Storm Warning | BOX | 34 hr |
| Feb 15, 3:04 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 17, 3:57 PM EST | Winter Weather Advisory | BOX | 27 hr |
| Feb 18, 11:12 AM EST | Special Weather Statement | BOX | 2 hr |
| Feb 21, 2:23 PM EST | Dense Fog Advisory | BOX | 3 hr |
| Feb 21, 5:04 PM EST | Special Weather Statement | BOX | 56 min |
| Feb 27, 8:49 PM EST | Special Weather Statement | BOX | 86 min |
| Feb 27, 10:22 PM EST | Special Weather Statement | BOX | 83 min |
| Mar 11, 4:48 PM EDT | Winter Weather Advisory | BOX | 43 hr |
| Mar 24, 4:44 AM EDT | Winter Storm Watch | BOX | 34 hr |
| Mar 25, 2:37 PM EDT | Winter Weather Advisory | BOX | 25 hr |
| Mar 25, 2:54 PM EDT | Wind Advisory | BOX | 38 hr |
| Mar 28, 2:31 PM EDT | Wind Advisory | BOX | 3 hr |
| Mar 28, 3:59 PM EDT | Coastal Flood Advisory | BOX | 44 hr |
| Mar 30, 4:04 AM EDT | Areal Flood Advisory | BOX | 3 hr |
| Mar 30, 6:54 AM EDT | Flash Flood Warning | BOX | 2 hr |
| Mar 30, 7:00 AM EDT | Areal Flood Advisory | BOX | 2 hr |
| Mar 30, 8:45 AM EDT | Flash Flood Warning | BOX | 3 hr |
| Mar 30, 11:46 AM EDT | Areal Flood Warning | BOX | 6 hr |
| Mar 30, 5:41 PM EDT | Areal Flood Advisory | BOX | 2 hr |
| Mar 31, 2:21 AM EDT | Areal Flood Warning | BOX | 3 hr |
| Mar 31, 5:15 AM EDT | Areal Flood Warning | BOX | 3 hr |
| Mar 31, 8:22 AM EDT | Areal Flood Warning | BOX | 6 hr |
| Apr 8, 7:09 AM EDT | Areal Flood Advisory | BOX | 3 hr |
| Apr 14, 3:45 PM EDT | Flood Watch | BOX | 36 hr |
| Apr 15, 4:32 AM EDT | Wind Advisory | BOX | 21 hr |
| Apr 15, 1:12 PM EDT | Areal Flood Advisory | BOX | 2 hr |
| Apr 15, 2:57 PM EDT | Coastal Flood Statement | BOX | 8 hr |
| Apr 15, 5:53 PM EDT | Areal Flood Advisory | BOX | 112 min |
| Apr 15, 7:42 PM EDT | Areal Flood Advisory | BOX | 4 hr |
| Apr 24, 12:01 PM EDT | Wind Advisory | BOX | 7 hr |
| Apr 24, 3:49 PM EDT | Frost Advisory | BOX | 10 hr |
| Apr 29, 4:21 PM EDT | Flood Watch | BOX | 45 hr |
| May 1, 4:51 AM EDT | Areal Flood Advisory | BOX | 3 hr |
| May 1, 7:31 AM EDT | Areal Flood Advisory | BOX | 3 hr |
| May 1, 1:21 PM EDT | Dense Fog Advisory | BOX | 14 hr |
| May 4, 5:11 PM EDT | Special Weather Statement | BOX | 49 min |
| Jun 10, 6:58 PM EDT | Areal Flood Advisory | BOX | 62 min |
| Jun 12, 4:01 PM EDT | Rip Current Statement | BOX | 24 hr |
| Jun 13, 10:10 AM EDT | Areal Flood Advisory | BOX | 65 min |
| Jun 13, 10:42 AM EDT | Flash Flood Watch | BOX | 8 hr |
| Jun 13, 3:19 PM EDT | Dense Fog Advisory | BOX | 15 hr |
| Jun 18, 2:07 AM EDT | Special Weather Statement | BOX | 3 hr |
| Jun 26, 5:49 PM EDT | Areal Flood Advisory | BOX | 56 min |
| Jul 2, 12:45 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Jul 4, 4:48 AM EDT | Flash Flood Watch | BOX | 18 hr |
| Jul 4, 5:59 AM EDT | Hurricane Local Statement | BOX | 23 hr |
| Jul 4, 12:29 PM EDT | Areal Flood Advisory | BOX | 2 hr |
| Jul 4, 1:21 PM EDT | Flash Flood Warning | BOX | 9 hr |
| Jul 4, 2:56 PM EDT | Flash Flood Warning | BOX | 6 hr |
| Jul 4, 4:59 PM EDT | Areal Flood Advisory | BOX | 3 hr |
| Jul 9, 3:27 AM EDT | Rip Current Statement | BOX | 17 hr |
| Jul 14, 4:03 AM EDT | Flash Flood Watch | BOX | 63 hr |
| Jul 15, 1:51 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jul 15, 11:49 PM EDT | Special Weather Statement | BOX | 56 min |
| Jul 15, 11:51 PM EDT | Flash Flood Warning | BOX | 3 hr |
| Jul 16, 12:31 AM EDT | Special Weather Statement | BOX | 59 min |
| Jul 16, 4:44 AM EDT | Areal Flood Advisory | BOX | 2 hr |
| Jul 16, 7:38 AM EDT | Flash Flood Warning | BOX | 3 hr |
| Jul 16, 8:32 AM EDT | Flash Flood Warning | BOX | 118 min |
| Jul 16, 10:30 AM EDT | Flash Flood Warning | BOX | 4 hr |
| Aug 4, 2:12 AM EDT | Dense Fog Advisory | BOX | 5 hr |
| Aug 5, 4:28 PM EDT | Rip Current Statement | BOX | 28 hr |
| Aug 6, 3:53 PM EDT | Special Weather Statement | BOX | 52 min |
| Aug 6, 4:11 PM EDT | Special Weather Statement | BOX | 49 min |
| Aug 6, 4:15 PM EDT | Areal Flood Advisory | BOX | 2 hr |
| Aug 6, 4:16 PM EDT | Severe Thunderstorm Warning | BOX | 44 min |
| Aug 7, 3:13 PM EDT | Severe Thunderstorm Warning | BOX | 47 min |
| Aug 7, 5:14 PM EDT | Severe Thunderstorm Warning | BOX | 31 min |
| Aug 7, 5:29 PM EDT | Severe Thunderstorm Warning | BOX | 25 min |
| Aug 11, 3:58 PM EDT | Flash Flood Watch | BOX | 52 hr |
| Aug 12, 11:33 AM EDT | Coastal Flood Advisory | BOX | 25 hr |
| Aug 13, 10:59 AM EDT | Areal Flood Advisory | BOX | 4 hr |
| Aug 13, 11:24 AM EDT | Flash Flood Warning | BOX | 4 hr |
| Aug 27, 4:35 AM EDT | High Surf Advisory | BOX | 57 hr |
| Aug 31, 10:01 PM EDT | Areal Flood Advisory | BOX | 119 min |
| Sep 2, 7:03 AM EDT | Dense Fog Advisory | BOX | 5 hr |
| Sep 6, 1:22 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 6, 4:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Sep 6, 7:31 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Sep 21, 3:43 PM EDT | High Surf Advisory | BOX | 26 hr |
| Oct 1, 2:02 PM EDT | Flood Watch | BOX | 14 hr |
| Oct 7, 2:27 PM EDT | Coastal Flood Advisory | BOX | 20 hr |
| Oct 8, 4:07 AM EDT | Mesoscale Discussion | SPC | 113 min |
| Oct 11, 4:19 AM EDT | Frost Advisory | BOX | 28 hr |
| Oct 16, 11:44 AM EDT | Flash Flood Watch | BOX | 11 hr |
| Oct 16, 3:33 PM EDT | Areal Flood Advisory | BOX | 117 min |
| Oct 18, 4:30 PM EDT | Freeze Watch | BOX | 11 hr |
| Oct 19, 3:08 AM EDT | Freeze Warning | BOX | 30 hr |
| Oct 22, 4:34 AM EDT | Flood Watch | BOX | 29 hr |
| Oct 22, 9:48 AM EDT | Wind Advisory | BOX | 37 hr |
| Oct 22, 8:41 PM EDT | Special Weather Statement | BOX | 49 min |
| Oct 22, 11:49 PM EDT | Areal Flood Advisory | BOX | 3 hr |
| Oct 23, 5:11 PM EDT | Areal Flood Advisory | BOX | 2 hr |
| Oct 31, 9:52 AM EDT | High Wind Watch | BOX | 18 hr |
| Nov 1, 4:20 AM EDT | Wind Advisory | BOX | 39 hr |
| Nov 11, 8:31 PM EST | Dense Fog Advisory | BOX | 17 hr |
| Nov 16, 3:19 AM EST | High Wind Watch | BOX | 13 hr |
| Nov 16, 4:11 PM EST | High Wind Warning | BOX | 29 hr |
| Nov 16, 4:11 PM EST | Wind Advisory | BOX | 27 hr |
| Nov 17, 11:11 AM EST | Flash Flood Watch | BOX | 8 hr |
| Nov 17, 4:08 PM EST | Areal Flood Advisory | BOX | 112 min |
| Nov 23, 4:53 AM EST | Coastal Flood Statement | BOX | 11 hr |
| Nov 23, 2:19 PM EST | Wind Advisory | BOX | 24 hr |
| Nov 23, 3:46 PM EST | Coastal Flood Advisory | BOX | 19 hr |
| Nov 25, 2:51 PM EST | Wind Advisory | BOX | 36 hr |
| Nov 25, 2:59 PM EST | Winter Weather Advisory | BOX | 35 hr |
| Nov 26, 1:35 PM EST | Freezing Rain Advisory | BOX | 3 hr |
| Dec 7, 4:18 PM EST | High Wind Watch | BOX | 36 hr |
| Dec 8, 4:37 AM EST | Flood Watch | BOX | 38 hr |
| Dec 8, 3:20 PM EST | Wind Advisory | BOX | 30 hr |
| Dec 8, 3:21 PM EST | Winter Weather Advisory | BOX | 22 hr |
| Dec 9, 11:31 AM EST | Areal Flood Warning | BOX | 6 hr |
| Dec 9, 12:03 PM EST | Areal Flood Advisory | BOX | 4 hr |
| Dec 23, 4:22 PM EST | Flood Watch | BOX | 36 hr |
| Dec 24, 3:16 AM EST | Wind Advisory | BOX | 28 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 archive20132015
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.