Alert archive / Rhode Island / Bristol County
Weather alerts in Bristol County, Rhode Island, 2015
112 weather alerts in 2015, 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 2015. Tap one for its archive.
- Alerts
- 112
- Warnings
- 16
- Watches
- 18
- Advisories
- 43
- Busiest month
- January20 alerts
- Busiest day
- June 23, 20156 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, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 4 | 3 | 25% | 4 | 25% | 41 min |
| Flash flood warnings | 2 | 0 | 100% | 0 |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Boston/Norton, MA: tornado warnings | 10 | 1 | 90% | 2 | 50% | 23 min |
| NWS Boston/Norton, MA: severe thunderstorm warnings | 91 | 52 | 43% | 309 | 75% | 23 min |
| NWS Boston/Norton, MA: flash flood warnings | 12 | 1 | 92% | 5 | 100% | 39 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 4, 1:11 PM EST | Dense Fog Advisory | BOX | 9 hr |
| Jan 5, 4:24 AM EST | Wind Advisory | BOX | 14 hr |
| Jan 6, 4:31 PM EST | Wind Chill Advisory | BOX | 42 hr |
| Jan 14, 10:22 PM EST | Winter Weather Advisory | BOX | 22 hr |
| Jan 18, 8:21 PM EST | Special Weather Statement | BOX | 84 min |
| Jan 18, 8:23 PM EST | Special Weather Statement | BOX | 82 min |
| Jan 18, 8:24 PM EST | Special Weather Statement | BOX | 81 min |
| Jan 23, 4:06 AM EST | Winter Weather Advisory | BOX | 39 hr |
| Jan 24, 4:28 AM EST | Special Weather Statement | BOX | 62 min |
| Jan 24, 5:47 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 25, 3:52 AM EST | Blizzard Watch | BOX | 12 hr |
| Jan 25, 3:58 PM EST | Blizzard Warning | BOX | 54 hr |
| Jan 25, 3:58 PM EST | Winter Storm Warning | BOX | 54 hr |
| Jan 26, 6:33 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 26, 11:32 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 27, 4:28 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 27, 10:24 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 30, 4:25 PM EST | Winter Storm Watch | BOX | 37 hr |
| Jan 30, 4:30 PM EST | Wind Advisory | BOX | 29 hr |
| Jan 31, 3:23 PM EST | Winter Storm Warning | BOX | 56 hr |
| Feb 2, 3:14 PM EST | Special Weather Statement | BOX | 91 min |
| Feb 6, 3:22 PM EST | Winter Storm Watch | BOX | 24 hr |
| Feb 7, 2:55 PM EST | Winter Storm Warning | BOX | 61 hr |
| Feb 12, 4:14 PM EST | Winter Storm Watch | BOX | 36 hr |
| Feb 13, 3:18 PM EST | Blizzard Warning | BOX | 49 hr |
| Feb 13, 3:18 PM EST | Winter Storm Warning | BOX | 47 hr |
| Feb 15, 4:15 AM EST | Wind Chill Advisory | BOX | 30 hr |
| Feb 15, 4:17 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 15, 2:42 PM EST | Winter Weather Advisory | BOX | 9 hr |
| Feb 18, 10:55 PM EST | Special Weather Statement | BOX | 110 min |
| Feb 19, 4:51 AM EST | Wind Chill Advisory | BOX | 29 hr |
| Feb 20, 4:27 PM EST | Winter Weather Advisory | BOX | 43 hr |
| Feb 23, 3:54 PM EST | Winter Weather Advisory | BOX | 39 hr |
| Feb 28, 4:06 AM EST | Winter Storm Watch | BOX | 24 hr |
| Mar 1, 4:15 AM EST | Winter Storm Warning | BOX | 22 hr |
| Mar 1, 1:57 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Mar 2, 3:38 PM EST | Winter Weather Advisory | BOX | 36 hr |
| Mar 3, 4:49 PM EST | Winter Storm Watch | BOX | 22 hr |
| Mar 3, 7:01 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Mar 4, 4:42 AM EST | Winter Storm Warning | BOX | 41 hr |
| Mar 4, 2:32 PM EST | Winter Weather Advisory | BOX | 22 hr |
| Mar 11, 1:51 AM EDT | Dense Fog Advisory | BOX | 6 hr |
| Mar 16, 3:28 PM EDT | Wind Advisory | BOX | 52 hr |
| Mar 17, 4:10 PM EDT | Special Weather Statement | BOX | 110 min |
| Mar 26, 6:11 AM EDT | Dense Fog Advisory | BOX | 18 hr |
| Mar 26, 5:30 PM EDT | Special Weather Statement | BOX | 45 min |
| Apr 3, 3:55 AM EDT | Wind Advisory | BOX | 38 hr |
| Apr 3, 10:25 PM EDT | Dense Fog Advisory | BOX | 8 hr |
| Apr 4, 4:53 AM EDT | Special Weather Statement | BOX | 37 min |
| Apr 10, 2:28 PM EDT | Dense Fog Advisory | BOX | 9 hr |
| Apr 19, 3:18 PM EDT | Coastal Flood Advisory | BOX | 37 hr |
| May 3, 4:09 PM EDT | Fire Weather Watch | BOX | 12 hr |
| May 9, 2:56 PM EDT | Dense Fog Advisory | BOX | 19 hr |
| May 10, 3:57 PM EDT | Dense Fog Advisory | BOX | 18 hr |
| May 11, 4:20 PM EDT | Dense Fog Advisory | BOX | 18 hr |
| May 12, 2:38 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 12, 4:03 PM EDT | Fire Weather Watch | BOX | 11 hr |
| May 13, 3:20 AM EDT | Red Flag Warning | BOX | 15 hr |
| May 30, 12:00 AM EDT | Dense Fog Advisory | BOX | 8 hr |
| May 31, 3:29 PM EDT | Flash Flood Watch | BOX | 41 hr |
| May 31, 4:51 PM EDT | Flash Flood Warning | BOX | 3 hr |
| May 31, 5:26 PM EDT | Areal Flood Advisory | BOX | 2 hr |
| Jun 20, 4:19 PM EDT | Flood Watch | BOX | 20 hr |
| Jun 21, 10:39 AM EDT | Areal Flood Advisory | BOX | 66 min |
| Jun 23, 10:12 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 23, 2:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 23, 3:47 PM EDT | Tornado Watch | SPC | 7 hr |
| Jun 23, 4:53 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jun 23, 5:42 PM EDT | Severe Thunderstorm Warning | BOX | 48 min |
| Jun 23, 6:55 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 27, 4:22 AM EDT | Wind Advisory | BOX | 31 hr |
| Jun 27, 4:28 AM EDT | Flood Watch | BOX | 31 hr |
| Jul 1, 7:06 AM EDT | Areal Flood Advisory | BOX | 114 min |
| Jul 1, 7:28 AM EDT | Severe Thunderstorm Warning | BOX | 62 min |
| Jul 7, 7:48 PM EDT | Flash Flood Watch | BOX | 24 hr |
| Jul 8, 6:40 PM EDT | Areal Flood Advisory | BOX | 65 min |
| Jul 9, 4:01 AM EDT | Flash Flood Watch | BOX | 11 hr |
| Jul 15, 11:41 AM EDT | Flash Flood Watch | BOX | 9 hr |
| Jul 15, 5:42 PM EDT | Special Weather Statement | BOX | 63 min |
| Jul 15, 5:49 PM EDT | Flash Flood Warning | BOX | 116 min |
| Jul 24, 2:59 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 27, 2:26 AM EDT | Special Weather Statement | BOX | 49 min |
| Jul 27, 3:14 AM EDT | Special Weather Statement | BOX | 61 min |
| Jul 27, 11:18 AM EDT | Special Weather Statement | BOX | 57 min |
| Jul 28, 4:10 PM EDT | Special Weather Statement | BOX | 50 min |
| Jul 28, 4:35 PM EDT | Special Weather Statement | BOX | 40 min |
| Aug 4, 5:59 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 4, 6:09 AM EDT | Severe Thunderstorm Warning | BOX | 66 min |
| Aug 4, 6:54 AM EDT | Severe Thunderstorm Warning | BOX | 51 min |
| Aug 4, 6:49 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Aug 11, 11:06 AM EDT | Special Weather Statement | BOX | 84 min |
| Aug 26, 12:49 AM EDT | Special Weather Statement | BOX | 56 min |
| Sep 10, 11:35 AM EDT | Flash Flood Watch | BOX | 17 hr |
| Sep 29, 1:00 PM EDT | Coastal Flood Advisory | BOX | 23 hr |
| Sep 30, 7:57 AM EDT | Special Weather Statement | BOX | 93 min |
| Sep 30, 11:02 AM EDT | Special Weather Statement | BOX | 88 min |
| Oct 17, 3:10 AM EDT | Freeze Watch | BOX | 25 hr |
| Oct 18, 4:08 AM EDT | Freeze Warning | BOX | 29 hr |
| Oct 27, 4:01 PM EDT | Wind Advisory | BOX | 41 hr |
| Oct 27, 4:32 PM EDT | Coastal Flood Advisory | BOX | 34 hr |
| Oct 29, 3:43 AM EDT | Coastal Flood Advisory | BOX | 11 hr |
| Nov 5, 3:39 AM EST | Dense Fog Advisory | BOX | 3 hr |
| Nov 20, 3:44 AM EST | Special Weather Statement | BOX | 91 min |
| Nov 27, 5:18 AM EST | Dense Fog Advisory | BOX | 4 hr |
| Dec 2, 3:03 PM EST | Dense Fog Advisory | BOX | 4 hr |
| Dec 10, 10:19 PM EST | Dense Fog Advisory | BOX | 11 hr |
| Dec 11, 9:01 AM EST | Dense Fog Advisory | BOX | 2 hr |
| Dec 14, 11:21 AM EST | Dense Fog Advisory | BOX | 13 hr |
| Dec 14, 3:03 PM EST | Wind Advisory | BOX | 26 hr |
| Dec 21, 3:20 AM EST | Wind Advisory | BOX | 13 hr |
| Dec 23, 2:44 AM EST | Dense Fog Advisory | BOX | 7 hr |
| Dec 24, 5:39 PM EST | Dense Fog Advisory | BOX | 15 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 | 4 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 15 |
| Special Weather Statement | 20 |
| Flooding | |
| Flash Flood Warning | 2 |
| Flash Flood Watch | 5 |
| Flood Watch | 2 |
| Areal Flood Advisory | 4 |
| Winter | |
| Blizzard Warning | 2 |
| Winter Storm Warning | 6 |
| Blizzard Watch | 1 |
| Winter Storm Watch | 5 |
| Winter Weather Advisory | 7 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Wind Chill Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 8 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 17 |
| Coast and beach | |
| Coastal Flood Advisory | 4 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20142016
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.