Alert archive / Massachusetts / Suffolk County
Weather alerts in Suffolk County, Massachusetts, 2026
57 weather alerts in 2026, 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 2026. Tap one for its archive.
- Alerts
- 57
- Warnings
- 10
- Watches
- 11
- Advisories
- 20
- Busiest month
- January14 alerts
- Busiest day
- January 1, 20263 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, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 1 | 1 | 0% | 0 | ||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2026
| 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 | 52 | 43 | 17% | 134 | 94% | 26 min |
| NWS Boston/Norton, MA: flash flood warnings | 14 | 12 | 14% | 49 | 94% | 53 min |
An office's figures cover every county it serves, including across state lines.
The year is still running; reports filed late and damage surveys can still change these figures.
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, 7:29 AM EST | Snow Squall Warning | BOX | 61 min |
| Jan 1, 8:28 AM EST | Snow Squall Warning | BOX | 47 min |
| Jan 1, 8:46 AM EST | Snow Squall Warning | BOX | 59 min |
| Jan 6, 12:22 AM EST | Winter Weather Advisory | BOX | 34 hr |
| Jan 17, 1:17 PM EST | Winter Weather Advisory | BOX | 42 hr |
| Jan 22, 11:44 AM EST | Winter Storm Watch | BOX | 25 hr |
| Jan 22, 11:48 AM EST | Cold Weather Advisory | BOX | 46 hr |
| Jan 23, 12:28 PM EST | Winter Storm Warning | BOX | 3 days |
| Jan 25, 4:02 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 25, 7:26 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 29, 12:31 AM EST | Cold Weather Advisory | BOX | 34 hr |
| Jan 29, 11:36 AM EST | Coastal Flood Watch | BOX | 49 hr |
| Jan 30, 12:17 PM EST | Cold Weather Advisory | BOX | 20 hr |
| Jan 31, 12:47 AM EST | Coastal Flood Advisory | BOX | 61 hr |
| Feb 6, 12:20 AM EST | Cold Weather Advisory | BOX | 61 hr |
| Feb 6, 12:16 PM EST | Winter Weather Advisory | BOX | 25 min |
| Feb 6, 12:41 PM EST | Winter Weather Advisory | BOX | 32 hr |
| Feb 10, 1:20 AM EST | Winter Weather Advisory | BOX | 25 hr |
| Feb 20, 12:15 PM EST | Winter Storm Watch | BOX | 38 hr |
| Feb 20, 12:24 PM EST | Coastal Flood Watch | BOX | 4 days |
| Feb 21, 12:29 PM EST | Blizzard Warning | BOX | 55 hr |
| Feb 22, 3:33 PM EST | Coastal Flood Advisory | BOX | 15 hr |
| Feb 23, 5:13 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 23, 9:08 PM EST | Coastal Flood Advisory | BOX | 9 hr |
| Mar 3, 6:52 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Mar 4, 12:18 PM EST | Winter Weather Advisory | BOX | 48 hr |
| Mar 14, 12:09 PM EDT | High Wind Watch | BOX | 36 hr |
| Mar 15, 12:14 PM EDT | Flood Watch | BOX | 38 hr |
| Mar 16, 12:11 AM EDT | High Wind Warning | BOX | 30 hr |
| Apr 18, 2:13 PM EDT | Coastal Flood Statement | BOX | 14 hr |
| May 4, 11:43 AM EDT | Wind Advisory | BOX | 30 hr |
| May 18, 12:57 PM EDT | Heat Advisory | BOX | 54 hr |
| May 19, 3:23 PM EDT | Mesoscale Discussion | SPC | 67 min |
| May 19, 6:05 PM EDT | Severe Thunderstorm Warning | BOX | 27 min |
| May 29, 3:59 AM EDT | Wind Advisory | BOX | 40 hr |
| Jun 13, 2:00 PM EDT | Coastal Flood Statement | BOX | 4 days |
| Jun 28, 1:29 PM EDT | Extreme Heat Watch | BOX | 48 hr |
| Jun 30, 1:38 AM EDT | Extreme Heat Warning | BOX | 4 days |
| Jun 30, 1:25 PM EDT | Heat Advisory | BOX | 4 days |
| Jul 8, 8:51 AM EDT | Rip Current Statement | BOX | 14 hr |
| Jul 13, 2:37 AM EDT | Heat Advisory | BOX | 57 hr |
| Jul 21, 5:11 PM EDT | Special Weather Statement | BOX | 94 min |
| Aug 3, 3:28 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 5, 1:25 PM EDT | Heat Advisory | BOX | 55 hr |
| Aug 8, 6:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Aug 17, 1:50 PM EDT | Rip Current Statement | BOX | 30 hr |
| Sep 5, 2:15 AM EDT | Rip Current Statement | BOX | 42 hr |
| Sep 7, 4:39 AM EDT | Rip Current Statement | BOX | 15 hr |
| Sep 12, 2:20 AM EDT | Flood Watch | BOX | 38 hr |
| Sep 18, 1:55 PM EDT | Rip Current Statement | BOX | 30 hr |
| Sep 21, 2:15 PM EDT | Rip Current Statement | BOX | 30 hr |
| Sep 23, 3:09 PM EDT | Coastal Flood Watch | BOX | 35 hr |
| Sep 23, 3:33 PM EDT | High Wind Watch | BOX | 21 hr |
| Sep 24, 2:08 AM EDT | High Surf Advisory | BOX | 4 days |
| Sep 24, 12:38 PM EDT | High Wind Warning | BOX | 62 hr |
| Sep 25, 1:53 AM EDT | Coastal Flood Warning | BOX | 66 hr |
| Sep 26, 12:18 PM EDT | Flood Watch | BOX | 62 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 archive2025
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.