Alert archive / Massachusetts / 2021
Weather alerts in Massachusetts, September 2021
163 weather alerts in September 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in September 2021. Tap one for its archive.
- Alerts
- 163
- Warnings
- 96
- Watches
- 7
- Advisories
- 23
- Busiest day
- September 2, 202151 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|---|
| Sep 1, 3:26 AM EDT | Gale Watch | BOX | 31 hr | |
| Sep 1, 3:26 AM EDT | Gale Warning | BOX | 35 hr | |
| Sep 1, 2:34 PM EDT | Special Marine Warning | BOX | 56 min | |
| Sep 1, 3:29 PM EDT | Special Marine Warning | BOX | 61 min | |
| Sep 1, 4:00 PM EDT | Wind Advisory | BOX | Barnstable, Essex, Norfolk, Plymouth, Suffolk | 19 hr |
| Sep 1, 4:13 PM EDT | Special Marine Warning | BOX | 62 min | |
| Sep 1, 4:52 PM EDT | Severe Thunderstorm Warning | BOX | Nantucket | 38 min |
| Sep 1, 5:10 PM EDT | Special Marine Warning | BOX | 65 min | |
| Sep 1, 5:49 PM EDT | Special Weather Statement | BOX | Nantucket | 41 min |
| Sep 1, 6:09 PM EDT | Special Marine Warning | BOX | 66 min | |
| Sep 1, 7:19 PM EDT | Areal Flood Advisory | ALY | Berkshire | 3 hr |
| Sep 1, 9:13 PM EDT | Flash Flood Warning | BOX | Hampden | 10 hr |
| Sep 1, 9:24 PM EDT | Special Marine Warning | BOX | 66 min | |
| Sep 1, 9:37 PM EDT | Flash Flood Warning | BOX | Worcester | 10 hr |
| Sep 1, 10:01 PM EDT | Flash Flood Warning | BOX | Essex, Middlesex, Norfolk, Suffolk | 8 hr |
| Sep 1, 10:07 PM EDT | Areal Flood Advisory | ALY | Berkshire | 3 hr |
| Sep 1, 10:32 PM EDT | Flash Flood Warning | BOX | Bristol, Norfolk, Plymouth | 10 hr |
| Sep 1, 10:45 PM EDT | Special Marine Warning | BOX | 45 min | |
| Sep 1, 10:57 PM EDT | Flash Flood Warning | BOX | Franklin, Hampshire, Middlesex, Worcester | 8 hr |
| Sep 1, 11:02 PM EDT | Flash Flood Warning | BOX | Essex, Middlesex | 8 hr |
| Sep 1, 11:20 PM EDT | Mesoscale Discussion | SPC | Barnstable, Bristol, Dukes, Nantucket, Plymouth | 85 min |
| Sep 1, 11:21 PM EDT | Tornado Warning | BOX | Barnstable, Bristol, Dukes, Plymouth | 54 min |
| Sep 1, 11:24 PM EDT | Special Marine Warning | BOX | 66 min | |
| Sep 1, 11:32 PM EDT | Special Marine Warning | BOX | 58 min | |
| Sep 1, 11:32 PM EDT | Special Marine Warning | BOX | 58 min | |
| Sep 1, 11:37 PM EDT | Tornado Watch | SPC | Barnstable, Bristol, Dukes, Nantucket, Plymouth | 7 hr |
| Sep 1, 11:49 PM EDT | Areal Flood Advisory | ALY | Berkshire | 3 hr |
| Sep 1, 11:56 PM EDT | Tornado Warning | BOX | Barnstable, Dukes | 49 min |
| Sep 2, 12:08 AM EDT | Flash Flood Warning | BOX | Barnstable, Dukes | 8 hr |
| Sep 2, 12:20 AM EDT | Special Marine Warning | BOX | 55 min | |
| Sep 2, 12:22 AM EDT | Tornado Warning | BOX | Dukes | 53 min |
| Sep 2, 12:25 AM EDT | Special Marine Warning | BOX | 65 min | |
| Sep 2, 12:45 AM EDT | Tornado Warning | BOX | Barnstable, Dukes | 60 min |
| Sep 2, 12:57 AM EDT | River Flood Warning | ALY | Berkshire, Hampden | 21 hr |
| Sep 2, 1:07 AM EDT | Special Marine Warning | BOX | 83 min | |
| Sep 2, 1:09 AM EDT | Areal Flood Advisory | ALY | Berkshire | 111 min |
| Sep 2, 1:15 AM EDT | Tornado Warning | BOX | Dukes | 28 min |
| Sep 2, 1:51 AM EDT | River Flood Warning | BOX | Worcester | 31 hr |
| Sep 2, 1:56 AM EDT | Tornado Warning | BOX | Barnstable | 26 min |
| Sep 2, 2:34 AM EDT | Flash Flood Warning | BOX | Bristol, Plymouth | 6 hr |
| Sep 2, 3:38 AM EDT | Mesoscale Discussion | SPC | Barnstable, Dukes, Nantucket | 97 min |
| Sep 2, 3:42 AM EDT | River Flood Warning | BOX | Norfolk, Suffolk | 11 hr |
| Sep 2, 5:14 AM EDT | Special Marine Warning | BOX | 46 min | |
| Sep 2, 5:26 AM EDT | Flash Flood Warning | BOX | Barnstable, Bristol, Dukes, Plymouth | 3 hr |
| Sep 2, 5:30 AM EDT | River Flood Warning | BOX | Middlesex | 22 hr |
| Sep 2, 5:49 AM EDT | Special Marine Warning | BOX | 42 min | |
| Sep 2, 6:02 AM EDT | Flash Flood Warning | BOX | Essex, Middlesex, Norfolk, Suffolk | 3 hr |
| Sep 2, 6:14 AM EDT | Special Marine Warning | BOX | 25 min | |
| Sep 2, 6:50 AM EDT | Areal Flood Warning | BOX | Franklin, Hampden, Hampshire, Middlesex, Worcester | 6 hr |
| Sep 2, 7:04 AM EDT | Areal Flood Warning | BOX | Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk and 1 more | 11 hr |
| Sep 2, 7:25 AM EDT | Flash Flood Warning | BOX | Hampden, Hampshire, Worcester | 6 hr |
| Sep 2, 7:43 AM EDT | Areal Flood Warning | BOX | Bristol, Norfolk, Plymouth, Worcester | 6 hr |
| Sep 2, 7:54 AM EDT | Areal Flood Warning | BOX | Barnstable, Dukes, Plymouth | 6 hr |
| Sep 2, 8:14 AM EDT | River Flood Warning | BOX | Hampden, Hampshire | 13 hr |
| Sep 2, 8:20 AM EDT | River Flood Warning | BOX | Worcester | 32 hr |
| Sep 2, 8:20 AM EDT | River Flood Warning | BOX | Middlesex, Worcester | 60 hr |
| Sep 2, 9:25 AM EDT | River Flood Warning | BOX | Bristol, Plymouth | 64 hr |
| Sep 2, 10:40 AM EDT | Small Craft Advisory | BOX | 17 hr | |
| Sep 2, 12:51 PM EDT | Areal Flood Warning | BOX | Franklin, Hampden, Hampshire, Middlesex, Norfolk, Worcester | 6 hr |
| Sep 2, 1:28 PM EDT | Areal Flood Warning | BOX | Hampden | 6 hr |
| Sep 2, 1:42 PM EDT | Areal Flood Warning | BOX | Bristol, Norfolk, Plymouth, Worcester | 6 hr |
| Sep 2, 5:59 PM EDT | River Flood Warning | BOX | Essex, Middlesex | 25 hr |
| Sep 3, 9:38 PM EDT | River Flood Warning | BOX | Essex | 16 hr |
| Sep 5, 2:37 AM EDT | River Flood Warning | BOX | Bristol, Plymouth | 13 hr |
| Sep 5, 2:40 AM EDT | Small Craft Advisory | BOX | 30 hr | |
| Sep 7, 3:44 AM EDT | Small Craft Advisory | BOX | 7 days | |
| Sep 8, 7:54 PM EDT | Severe Thunderstorm Watch | SPC | Berkshire | 4 hr |
| Sep 8, 8:09 PM EDT | Severe Thunderstorm Warning | ALY | Berkshire | 66 min |
| Sep 8, 8:31 PM EDT | Severe Thunderstorm Warning | ALY | Berkshire | 59 min |
| Sep 8, 8:42 PM EDT | Special Weather Statement | BOX | Franklin | 48 min |
| Sep 8, 9:24 PM EDT | Severe Thunderstorm Warning | ALY | Berkshire | 21 min |
| Sep 8, 9:25 PM EDT | Mesoscale Discussion | SPC | Berkshire | 95 min |
| Sep 8, 9:40 PM EDT | Small Craft Advisory | BOX | 5 hr | |
| Sep 8, 9:53 PM EDT | Areal Flood Advisory | ALY | Berkshire | 112 min |
| Sep 9, 12:04 AM EDT | Areal Flood Advisory | ALY | Berkshire | 116 min |
| Sep 9, 2:57 AM EDT | Rip Current Statement | BOX | Barnstable, Dukes, Essex, Nantucket, Norfolk, Plymouth | 11 hr |
| Sep 9, 4:04 AM EDT | River Flood Warning | ALY | Berkshire | 2 hr |
| Sep 9, 4:12 AM EDT | Mesoscale Discussion | SPC | Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk and 1 more | 3 hr |
| Sep 9, 8:43 AM EDT | Special Marine Warning | BOX | 62 min | |
| Sep 9, 8:50 AM EDT | Special Weather Statement | BOX | Nantucket | 55 min |
| Sep 9, 11:06 AM EDT | Special Marine Warning | BOX | 54 min | |
| Sep 9, 1:55 PM EDT | High Surf Advisory | BOX | Barnstable, Dukes, Essex, Nantucket, Norfolk, Plymouth | 53 hr |
| Sep 9, 1:57 PM EDT | Special Weather Statement | BOX | Dukes, Plymouth | 63 min |
| Sep 9, 2:53 PM EDT | Special Weather Statement | BOX | Barnstable, Nantucket | 82 min |
| Sep 9, 3:11 PM EDT | Special Marine Warning | BOX | 34 min | |
| Sep 9, 3:13 PM EDT | Special Weather Statement | BOX | Barnstable | 47 min |
| Sep 9, 3:46 PM EDT | Special Marine Warning | BOX | 29 min | |
| Sep 9, 7:30 PM EDT | Areal Flood Warning | BOX | Barnstable | 3 hr |
| Sep 10, 5:47 PM EDT | Special Marine Warning | BOX | 58 min | |
| Sep 11, 4:01 AM EDT | Small Craft Advisory | BOX | 47 hr | |
| Sep 12, 4:09 AM EDT | High Surf Advisory | BOX | Dukes, Nantucket | 15 hr |
| Sep 13, 2:44 AM EDT | Special Weather Statement | BOX | Essex | 46 min |
| Sep 13, 3:14 AM EDT | Severe Thunderstorm Warning | BOX | Essex, Middlesex | 31 min |
| Sep 13, 3:17 AM EDT | Special Marine Warning | BOX | 43 min | |
| Sep 13, 3:51 AM EDT | Special Marine Warning | BOX | 25 min | |
| Sep 13, 5:24 AM EDT | Special Weather Statement | BOX | Essex | 66 min |
| Sep 13, 5:34 AM EDT | Severe Thunderstorm Warning | BOX | Essex, Middlesex | 31 min |
| Sep 13, 5:39 AM EDT | Special Marine Warning | BOX | 66 min | |
| Sep 13, 8:02 AM EDT | Special Marine Warning | BOX | 43 min | |
| Sep 14, 3:30 PM EDT | Small Craft Advisory | BOX | 35 hr | |
| Sep 15, 10:33 AM EDT | Mesoscale Discussion | SPC | Berkshire | 2 hr |
| Sep 15, 11:55 AM EDT | Severe Thunderstorm Watch | SPC | Berkshire | 8 hr |
| Sep 15, 3:04 PM EDT | Mesoscale Discussion | SPC | Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex and 2 more | 116 min |
| Sep 15, 3:43 PM EDT | Severe Thunderstorm Watch | SPC | Franklin, Hampden, Hampshire, Worcester | 6 hr |
| Sep 15, 4:31 PM EDT | Severe Thunderstorm Warning | ALY | Berkshire | 59 min |
| Sep 15, 4:38 PM EDT | Mesoscale Discussion | SPC | Berkshire, Franklin, Hampshire | 67 min |
| Sep 15, 4:41 PM EDT | Areal Flood Advisory | ALY | Berkshire | 3 hr |
| Sep 15, 6:02 PM EDT | Special Weather Statement | ALY | Berkshire | 43 min |
| Sep 15, 6:23 PM EDT | Special Weather Statement | ALY | Berkshire | 37 min |
| Sep 15, 6:24 PM EDT | Special Weather Statement | BOX | Worcester | 51 min |
| Sep 15, 6:32 PM EDT | Special Weather Statement | BOX | Franklin | 43 min |
| Sep 15, 7:00 PM EDT | Special Weather Statement | BOX | Franklin | 45 min |
| Sep 15, 7:10 PM EDT | Special Weather Statement | BOX | Worcester | 50 min |
| Sep 15, 7:15 PM EDT | Special Weather Statement | BOX | Hampshire | 45 min |
| Sep 15, 7:20 PM EDT | Special Weather Statement | BOX | Hampden | 40 min |
| Sep 15, 7:40 PM EDT | Special Weather Statement | BOX | Middlesex | 50 min |
| Sep 15, 7:53 PM EDT | Severe Thunderstorm Warning | BOX | Hampden, Hampshire, Middlesex, Worcester | 13 min |
| Sep 15, 8:11 PM EDT | Mesoscale Discussion | SPC | Franklin, Hampden, Hampshire, Worcester | 2 hr |
| Sep 16, 5:43 AM EDT | Special Marine Warning | BOX | 62 min | |
| Sep 16, 6:10 AM EDT | Special Weather Statement | BOX | Essex, Norfolk | 65 min |
| Sep 16, 6:13 AM EDT | Special Weather Statement | BOX | Norfolk | 62 min |
| Sep 16, 6:24 AM EDT | Special Weather Statement | BOX | Bristol | 66 min |
| Sep 16, 6:38 AM EDT | Severe Thunderstorm Warning | BOX | Bristol, Plymouth | 53 min |
| Sep 16, 6:42 AM EDT | Special Marine Warning | BOX | 63 min | |
| Sep 16, 7:00 AM EDT | Special Marine Warning | BOX | 60 min | |
| Sep 16, 7:13 AM EDT | Severe Thunderstorm Warning | BOX | Barnstable, Bristol, Dukes, Plymouth | 62 min |
| Sep 16, 7:25 AM EDT | Special Marine Warning | BOX | 65 min | |
| Sep 16, 7:27 AM EDT | Special Marine Warning | BOX | 63 min | |
| Sep 16, 7:36 AM EDT | Severe Thunderstorm Warning | BOX | Barnstable, Dukes | 54 min |
| Sep 16, 7:51 AM EDT | Special Marine Warning | BOX | 54 min | |
| Sep 16, 7:59 AM EDT | Special Weather Statement | BOX | Barnstable, Dukes | 61 min |
| Sep 16, 8:15 AM EDT | Special Marine Warning | BOX | 90 min | |
| Sep 16, 8:37 AM EDT | Special Marine Warning | BOX | 40 min | |
| Sep 16, 9:31 AM EDT | Special Marine Warning | BOX | 59 min | |
| Sep 16, 3:18 PM EDT | Small Craft Advisory | BOX | 3 days | |
| Sep 17, 3:13 PM EDT | Rip Current Statement | BOX | Barnstable, Essex, Nantucket, Norfolk, Plymouth | 53 hr |
| Sep 17, 8:10 PM EDT | Dense Fog Advisory | BOX | Barnstable, Bristol, Essex, Middlesex, Norfolk, Plymouth and 2 more | 12 hr |
| Sep 18, 8:28 PM EDT | Special Weather Statement | BOX | Middlesex | 62 min |
| Sep 18, 9:22 PM EDT | Special Weather Statement | BOX | Norfolk | 53 min |
| Sep 18, 10:50 PM EDT | Special Marine Warning | BOX | 55 min | |
| Sep 22, 3:21 AM EDT | Small Craft Advisory | BOX | 72 hr | |
| Sep 22, 4:01 PM EDT | Flash Flood Watch | ALY | Berkshire | 42 hr |
| Sep 23, 9:28 AM EDT | Rip Current Statement | BOX | Barnstable, Bristol, Dukes, Essex, Nantucket, Norfolk and 2 more | 35 hr |
| Sep 23, 9:31 AM EDT | Small Craft Advisory | BOX | 30 hr | |
| Sep 23, 2:48 PM EDT | Flash Flood Watch | BOX | Franklin, Hampden, Hampshire | 19 hr |
| Sep 24, 8:23 AM EDT | Severe Thunderstorm Warning | BOX | Hampshire, Worcester | 15 min |
| Sep 24, 11:11 AM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Worcester | 22 min |
| Sep 24, 12:19 PM EDT | Special Marine Warning | BOX | 56 min | |
| Sep 24, 12:36 PM EDT | Special Weather Statement | BOX | Norfolk | 54 min |
| Sep 25, 3:49 AM EDT | Small Craft Advisory | BOX | 3 days | |
| Sep 27, 1:46 PM EDT | Gale Warning | BOX | 14 hr | |
| Sep 27, 1:46 PM EDT | Small Craft Advisory | BOX | 53 hr | |
| Sep 28, 9:29 AM EDT | Severe Thunderstorm Warning | BOX | Bristol, Middlesex, Norfolk, Suffolk, Worcester | 61 min |
| Sep 28, 10:02 AM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Norfolk, Plymouth, Suffolk | 43 min |
| Sep 28, 10:06 AM EDT | Special Marine Warning | BOX | 54 min | |
| Sep 28, 11:18 AM EDT | Special Weather Statement | BOX | Bristol | 42 min |
| Sep 28, 11:42 AM EDT | Special Marine Warning | BOX | 48 min | |
| Sep 28, 1:58 PM EDT | Special Marine Warning | BOX | 47 min | |
| Sep 28, 2:07 PM EDT | Severe Thunderstorm Warning | BOX | Barnstable, Bristol, Dukes, Plymouth | 53 min |
| Sep 28, 2:30 PM EDT | Special Marine Warning | BOX | 45 min | |
| Sep 28, 2:58 PM EDT | Special Weather Statement | BOX | Barnstable | 47 min |
| Sep 28, 3:25 PM EDT | Small Craft Advisory | BOX | 28 hr | |
| Sep 28, 3:29 PM EDT | Special Marine Warning | BOX | 46 min |
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 | 16 |
| Tornado Warning | 6 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 8 |
| Special Weather Statement | 26 |
| Flooding | |
| Areal Flood Warning | 8 |
| Flash Flood Warning | 11 |
| River Flood Warning | 12 |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 7 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Coast and beach | |
| High Surf Advisory | 2 |
| Rip Current Statement | 3 |
| Marine | |
| Gale Warning | 2 |
| Special Marine Warning | 41 |
| Gale Watch | 1 |
| Small Craft Advisory | 12 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.