Alert archive / Massachusetts / Suffolk County
Weather alerts in Suffolk County, Massachusetts, 2022
106 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Suffolk County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 106
- Warnings
- 17
- Watches
- 14
- Advisories
- 32
- Busiest month
- January26 alerts
- Busiest day
- January 29, 20225 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Suffolk County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 8 | 8 | 0% | 6 | 100% | 31 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Boston/Norton, MA: tornado warnings | 2 | 0 | 100% | 0 | ||
| NWS Boston/Norton, MA: severe thunderstorm warnings | 63 | 46 | 27% | 231 | 77% | 27 min |
| NWS Boston/Norton, MA: flash flood warnings | 10 | 2 | 80% | 4 | 75% | 37 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, 1:05 AM EST | Dense Fog Advisory | BOX | 11 hr |
| Jan 1, 6:01 PM EST | Dense Fog Advisory | BOX | 10 hr |
| Jan 2, 3:52 AM EST | Coastal Flood Statement | BOX | 24 hr |
| Jan 3, 3:38 AM EST | Coastal Flood Advisory | BOX | 10 hr |
| Jan 3, 2:15 PM EST | Coastal Flood Advisory | BOX | 24 hr |
| Jan 5, 2:08 PM EST | Winter Storm Watch | BOX | 13 hr |
| Jan 6, 3:24 AM EST | Winter Storm Warning | BOX | 34 hr |
| Jan 7, 4:12 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 13, 3:25 PM EST | Wind Chill Advisory | BOX | 45 hr |
| Jan 13, 3:29 PM EST | Wind Advisory | BOX | 32 hr |
| Jan 15, 3:15 PM EST | High Wind Watch | BOX | 12 hr |
| Jan 15, 3:20 PM EST | Coastal Flood Watch | BOX | 12 hr |
| Jan 16, 2:48 AM EST | High Wind Warning | BOX | 33 hr |
| Jan 16, 3:02 AM EST | Coastal Flood Warning | BOX | 34 hr |
| Jan 17, 2:24 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 17, 4:13 AM EST | Special Weather Statement | BOX | 62 min |
| Jan 17, 5:30 AM EST | Special Weather Statement | BOX | 90 min |
| Jan 17, 8:22 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 26, 2:59 PM EST | Winter Storm Watch | BOX | 37 hr |
| Jan 28, 3:35 AM EST | Blizzard Warning | BOX | 43 hr |
| Jan 28, 3:37 PM EST | Coastal Flood Advisory | BOX | 31 hr |
| Jan 29, 3:50 AM EST | Coastal Flood Warning | BOX | 7 hr |
| Jan 29, 4:25 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 29, 10:50 AM EST | Coastal Flood Advisory | BOX | 2 hr |
| Jan 29, 10:57 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 29, 5:48 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 2, 3:49 AM EST | Winter Storm Watch | BOX | 23 hr |
| Feb 3, 2:44 AM EST | Winter Weather Advisory | BOX | 46 hr |
| Feb 3, 12:35 PM EST | Dense Fog Advisory | BOX | 12 hr |
| Feb 4, 10:20 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 4, 6:13 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Feb 12, 3:28 PM EST | Winter Weather Advisory | BOX | 43 hr |
| Feb 15, 2:40 PM EST | High Wind Watch | BOX | 36 hr |
| Feb 16, 2:44 PM EST | High Wind Warning | BOX | 42 hr |
| Feb 19, 12:58 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 22, 2:47 AM EST | Wind Advisory | BOX | 25 hr |
| Feb 23, 3:00 AM EST | Winter Storm Watch | BOX | 34 hr |
| Feb 24, 2:54 AM EST | Winter Storm Warning | BOX | 36 hr |
| Feb 25, 2:20 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 27, 8:37 PM EST | Special Weather Statement | BOX | 53 min |
| Feb 27, 10:10 PM EST | Special Weather Statement | BOX | 65 min |
| Mar 6, 5:51 AM EST | Dense Fog Advisory | BOX | 4 hr |
| Mar 6, 3:35 PM EST | Wind Advisory | BOX | 36 hr |
| Mar 7, 8:52 PM EST | Mesoscale Discussion | SPC | 113 min |
| Mar 7, 10:16 PM EST | Severe Thunderstorm Warning | BOX | 47 min |
| Mar 11, 3:01 PM EST | Wind Advisory | BOX | 42 hr |
| Mar 12, 6:51 AM EST | Dense Fog Advisory | BOX | 2 hr |
| Mar 17, 6:58 AM EDT | Dense Fog Advisory | BOX | 3 hr |
| Mar 19, 5:25 AM EDT | Dense Fog Advisory | BOX | 7 hr |
| Apr 18, 3:26 AM EDT | Wind Advisory | BOX | 29 hr |
| Apr 18, 3:04 PM EDT | Coastal Flood Statement | BOX | 13 hr |
| May 12, 7:59 PM EDT | Dense Fog Advisory | BOX | 12 hr |
| May 16, 3:36 AM EDT | Coastal Flood Statement | BOX | 25 hr |
| May 16, 6:43 PM EDT | Mesoscale Discussion | SPC | 62 min |
| May 20, 3:16 AM EDT | Dense Fog Advisory | BOX | 7 hr |
| May 20, 3:16 AM EDT | Heat Advisory | BOX | 65 hr |
| May 22, 4:59 PM EDT | Severe Thunderstorm Warning | BOX | 61 min |
| Jun 14, 3:17 PM EDT | Coastal Flood Statement | BOX | 12 hr |
| Jun 15, 3:39 AM EDT | Coastal Flood Statement | BOX | 23 hr |
| Jun 17, 12:40 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 2, 2:37 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 2, 4:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 2, 5:52 PM EDT | Severe Thunderstorm Warning | BOX | 38 min |
| Jul 2, 6:23 PM EDT | Special Weather Statement | BOX | 52 min |
| Jul 12, 6:01 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jul 13, 2:54 AM EDT | Coastal Flood Statement | BOX | 23 hr |
| Jul 14, 2:37 AM EDT | Coastal Flood Advisory | BOX | 24 hr |
| Jul 14, 3:16 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 15, 3:37 AM EDT | Coastal Flood Statement | BOX | 24 hr |
| Jul 16, 3:35 AM EDT | Coastal Flood Statement | BOX | 24 hr |
| Jul 19, 3:36 AM EDT | Heat Advisory | BOX | 64 hr |
| Jul 22, 3:29 AM EDT | Heat Advisory | BOX | 4 days |
| Jul 25, 11:25 AM EDT | Mesoscale Discussion | SPC | 95 min |
| Jul 25, 1:04 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 2, 2:26 PM EDT | Heat Advisory | BOX | 7 days |
| Aug 5, 2:35 PM EDT | Special Weather Statement | BOX | 55 min |
| Aug 5, 4:10 PM EDT | Severe Thunderstorm Warning | BOX | 36 min |
| Aug 5, 4:42 PM EDT | Special Weather Statement | BOX | 63 min |
| Aug 7, 6:42 PM EDT | Severe Thunderstorm Warning | BOX | 48 min |
| Aug 7, 7:30 PM EDT | Severe Thunderstorm Warning | BOX | 32 min |
| Aug 11, 3:02 PM EDT | Coastal Flood Advisory | BOX | 12 hr |
| Aug 12, 3:32 PM EDT | Coastal Flood Statement | BOX | 10 hr |
| Aug 16, 2:54 AM EDT | High Surf Advisory | BOX | 41 hr |
| Aug 22, 12:52 PM EDT | Special Weather Statement | BOX | 53 min |
| Aug 23, 3:22 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 26, 12:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 26, 1:02 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 26, 3:24 PM EDT | Severe Thunderstorm Warning | BOX | 66 min |
| Aug 26, 3:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 26, 4:27 PM EDT | Severe Thunderstorm Warning | BOX | 42 min |
| Sep 5, 3:08 AM EDT | Flood Watch | BOX | 34 hr |
| Sep 13, 5:33 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Sep 22, 8:50 AM EDT | Special Weather Statement | BOX | 55 min |
| Oct 13, 2:45 PM EDT | Flood Watch | BOX | 15 hr |
| Oct 13, 11:45 PM EDT | Special Weather Statement | BOX | 60 min |
| Oct 25, 5:47 PM EDT | Dense Fog Advisory | BOX | 16 hr |
| Oct 29, 3:00 PM EDT | Frost Advisory | BOX | 18 hr |
| Nov 24, 3:14 PM EST | Coastal Flood Statement | BOX | 24 hr |
| Nov 26, 3:17 PM EST | Coastal Flood Statement | BOX | 25 hr |
| Nov 29, 2:57 AM EST | Wind Advisory | BOX | 60 hr |
| Dec 14, 1:27 AM EST | Special Weather Statement | BOX | 33 min |
| Dec 15, 3:25 AM EST | Wind Advisory | BOX | 42 hr |
| Dec 20, 2:44 PM EST | Coastal Flood Watch | BOX | 37 hr |
| Dec 21, 3:25 AM EST | High Wind Watch | BOX | 11 hr |
| Dec 21, 2:53 PM EST | High Wind Warning | BOX | 58 hr |
| Dec 22, 3:55 AM EST | Coastal Flood Warning | BOX | 34 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 | 8 |
| Severe Thunderstorm Watch | 3 |
| Mesoscale Discussion | 21 |
| Special Weather Statement | 11 |
| Flooding | |
| Flood Watch | 2 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 4 |
| Winter Weather Advisory | 2 |
| Heat | |
| Heat Advisory | 4 |
| Cold | |
| Frost Advisory | 1 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 3 |
| High Wind Watch | 3 |
| Wind Advisory | 7 |
| Fog and smoke | |
| Dense Fog Advisory | 10 |
| Coast and beach | |
| Coastal Flood Warning | 3 |
| Coastal Flood Watch | 2 |
| Coastal Flood Advisory | 6 |
| High Surf Advisory | 1 |
| Coastal Flood Statement | 11 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20212023
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.