Alert archive / Massachusetts / Franklin County
Weather alerts in Franklin County, Massachusetts, 2024
132 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Franklin County and its neighbors
Each county as a circle sized by its count in 2024. Tap one for its archive.
- Alerts
- 132
- Warnings
- 55
- Watches
- 19
- Advisories
- 26
- Busiest month
- June34 alerts
- Busiest day
- June 20, 20248 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering Franklin County in 2024 had a tornado report inside them.
Franklin County, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 31 | 24 | 23% | 26 | 96% | 36 min |
| Flash flood warnings | 2 | 0 | 100% | 0 |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Boston/Norton, MA: tornado warnings | 4 | 1 | 75% | 2 | 50% | 0 min |
| NWS Boston/Norton, MA: severe thunderstorm warnings | 109 | 81 | 26% | 290 | 91% | 26 min |
| NWS Boston/Norton, MA: flash flood warnings | 21 | 5 | 76% | 13 | 85% | 59 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, 3:27 PM EST | Winter Storm Watch | BOX | 35 hr |
| Jan 5, 2:24 PM EST | Winter Storm Warning | BOX | 56 hr |
| Jan 6, 8:35 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 7, 12:16 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Jan 8, 3:50 AM EST | Flood Watch | BOX | 5 days |
| Jan 8, 3:12 PM EST | Wind Advisory | BOX | 40 hr |
| Jan 8, 3:16 PM EST | Winter Weather Advisory | BOX | 33 hr |
| Jan 14, 11:49 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 14, 1:25 PM EST | Special Weather Statement | BOX | 65 min |
| Jan 14, 2:07 PM EST | Snow Squall Warning | BOX | 38 min |
| Jan 14, 2:26 PM EST | Snow Squall Warning | BOX | 49 min |
| Jan 14, 2:30 PM EST | Snow Squall Warning | BOX | 45 min |
| Jan 15, 3:40 PM EST | Winter Weather Advisory | BOX | 27 hr |
| Jan 20, 2:46 AM EST | Wind Chill Advisory | BOX | 31 hr |
| Jan 23, 3:33 AM EST | Winter Weather Advisory | BOX | 35 hr |
| Jan 25, 3:06 PM EST | Winter Weather Advisory | BOX | 12 hr |
| Jan 26, 3:18 PM EST | Winter Storm Watch | BOX | 36 hr |
| Jan 27, 3:24 PM EST | Winter Storm Warning | BOX | 39 hr |
| Jan 27, 3:24 PM EST | Winter Weather Advisory | BOX | 39 hr |
| Feb 10, 5:33 AM EST | Dense Fog Advisory | BOX | 3 hr |
| Feb 10, 3:25 PM EST | Winter Storm Watch | BOX | 48 hr |
| Feb 11, 2:41 PM EST | Winter Storm Warning | BOX | 50 hr |
| Feb 12, 3:20 PM EST | Winter Weather Advisory | BOX | 23 hr |
| Feb 15, 3:25 AM EST | Wind Advisory | BOX | 34 hr |
| Feb 27, 4:18 AM EST | High Wind Watch | BOX | 23 hr |
| Feb 27, 4:18 AM EST | Wind Advisory | BOX | 51 hr |
| Feb 27, 3:22 PM EST | High Wind Warning | BOX | 36 hr |
| Mar 6, 10:37 PM EST | River Flood Warning | BOX | 40 hr |
| Mar 9, 2:53 PM EST | Flood Watch | BOX | 14 hr |
| Mar 10, 3:38 AM EDT | Wind Advisory | BOX | 42 hr |
| Mar 20, 3:59 PM EDT | Wind Advisory | BOX | 27 hr |
| Mar 20, 5:45 PM EDT | Special Weather Statement | BOX | 60 min |
| Mar 22, 3:42 AM EDT | Winter Weather Advisory | BOX | 35 hr |
| Mar 23, 3:27 AM EDT | Mesoscale Discussion | SPC | 4 hr |
| Mar 23, 3:16 PM EDT | Winter Weather Advisory | BOX | 8 hr |
| Apr 1, 3:57 PM EDT | Winter Storm Watch | BOX | 36 hr |
| Apr 3, 3:54 AM EDT | Winter Storm Warning | BOX | 33 hr |
| Apr 3, 3:54 AM EDT | Winter Weather Advisory | BOX | 33 hr |
| Apr 12, 5:41 AM EDT | Areal Flood Warning | BOX | 7 hr |
| Apr 12, 7:51 AM EDT | Areal Flood Warning | BOX | 3 hr |
| May 8, 2:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 8, 3:44 PM EDT | Severe Thunderstorm Warning | BOX | 45 min |
| May 21, 4:33 PM EDT | Severe Thunderstorm Warning | BOX | 42 min |
| May 21, 4:59 PM EDT | Severe Thunderstorm Warning | BOX | 46 min |
| May 21, 5:57 PM EDT | Severe Thunderstorm Warning | BOX | 28 min |
| May 21, 6:16 PM EDT | Flash Flood Warning | BOX | 58 min |
| Jun 14, 3:59 PM EDT | Severe Thunderstorm Warning | BOX | 27 min |
| Jun 16, 2:25 AM EDT | Excessive Heat Watch | BOX | 3 days |
| Jun 17, 2:19 AM EDT | Heat Advisory | BOX | 49 hr |
| Jun 18, 1:57 PM EDT | Heat Advisory | BOX | 14 hr |
| Jun 19, 3:39 AM EDT | Heat Advisory | BOX | 5 days |
| Jun 19, 4:02 PM EDT | Special Weather Statement | ALY | 28 min |
| Jun 19, 4:29 PM EDT | Areal Flood Warning | BOX | 3 hr |
| Jun 19, 4:58 PM EDT | Severe Thunderstorm Warning | BOX | 47 min |
| Jun 19, 5:26 PM EDT | Severe Thunderstorm Warning | BOX | 49 min |
| Jun 19, 5:33 PM EDT | Severe Thunderstorm Warning | BOX | 42 min |
| Jun 19, 5:52 PM EDT | Severe Thunderstorm Warning | BOX | 28 min |
| Jun 20, 11:26 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 20, 12:59 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 20, 3:12 PM EDT | Severe Thunderstorm Warning | BOX | 49 min |
| Jun 20, 3:23 PM EDT | Severe Thunderstorm Warning | BOX | 37 min |
| Jun 20, 3:38 PM EDT | Flash Flood Warning | BOX | 104 min |
| Jun 20, 6:35 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jun 20, 7:18 PM EDT | Severe Thunderstorm Warning | BOX | 57 min |
| Jun 20, 7:32 PM EDT | Severe Thunderstorm Warning | BOX | 43 min |
| Jun 20, 8:10 PM EDT | Severe Thunderstorm Warning | BOX | 41 min |
| Jun 21, 11:38 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 21, 2:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 21, 3:34 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 21, 4:13 PM EDT | Severe Thunderstorm Warning | BOX | 47 min |
| Jun 21, 4:29 PM EDT | Severe Thunderstorm Warning | BOX | 49 min |
| Jun 22, 12:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 22, 3:22 PM EDT | Severe Thunderstorm Warning | BOX | 53 min |
| Jun 23, 12:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 23, 12:59 PM EDT | Tornado Watch | SPC | 9 hr |
| Jun 23, 2:37 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jun 23, 4:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jun 30, 9:55 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 11:09 AM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jun 30, 4:02 PM EDT | Special Weather Statement | ALY | 28 min |
| Jul 6, 5:52 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 7, 3:39 PM EDT | Heat Advisory | BOX | 4 days |
| Jul 9, 1:45 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 12, 3:17 AM EDT | Flood Watch | BOX | 36 hr |
| Jul 13, 3:06 PM EDT | Excessive Heat Watch | BOX | 24 hr |
| Jul 13, 3:06 PM EDT | Heat Advisory | BOX | 4 days |
| Jul 15, 3:17 PM EDT | Severe Thunderstorm Warning | BOX | 22 min |
| Jul 16, 5:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 16, 5:48 PM EDT | Severe Thunderstorm Warning | BOX | 57 min |
| Jul 16, 5:55 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 16, 6:23 PM EDT | Severe Thunderstorm Warning | BOX | 67 min |
| Jul 16, 7:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 16, 7:21 PM EDT | Severe Thunderstorm Warning | BOX | 54 min |
| Jul 16, 7:36 PM EDT | Severe Thunderstorm Warning | BOX | 39 min |
| Jul 16, 7:56 PM EDT | Severe Thunderstorm Warning | BOX | 53 min |
| Jul 16, 8:01 PM EDT | Tornado Warning | BOX | 15 min |
| Jul 17, 12:27 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 17, 12:58 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 17, 3:50 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 17, 4:13 PM EDT | Severe Thunderstorm Warning | BOX | 62 min |
| Jul 17, 4:47 PM EDT | Severe Thunderstorm Warning | BOX | 58 min |
| Jul 17, 5:05 PM EDT | Severe Thunderstorm Warning | BOX | 25 min |
| Jul 17, 5:26 PM EDT | Severe Thunderstorm Warning | BOX | 64 min |
| Aug 2, 3:08 PM EDT | Severe Thunderstorm Warning | BOX | 26 min |
| Aug 2, 3:40 PM EDT | Severe Thunderstorm Warning | BOX | 29 min |
| Aug 5, 1:58 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Aug 9, 1:27 PM EDT | Tornado Watch | SPC | 7 hr |
| Aug 9, 2:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Aug 15, 11:57 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 15, 2:34 PM EDT | Special Weather Statement | ALY | 26 min |
| Aug 19, 2:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 26, 11:51 AM EDT | Mesoscale Discussion | SPC | 114 min |
| Aug 26, 1:04 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 26, 1:52 PM EDT | Severe Thunderstorm Warning | BOX | 38 min |
| Aug 26, 2:26 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 26, 2:43 PM EDT | Special Weather Statement | ALY | 47 min |
| Aug 26, 2:54 PM EDT | Severe Thunderstorm Warning | BOX | 37 min |
| Oct 25, 6:56 PM EDT | Red Flag Warning | BOX | 24 hr |
| Oct 31, 3:04 PM EDT | Red Flag Warning | BOX | 28 hr |
| Nov 5, 4:01 PM EST | Red Flag Warning | BOX | 26 hr |
| Nov 7, 2:58 PM EST | Red Flag Warning | BOX | 51 hr |
| Nov 9, 3:03 PM EST | Red Flag Warning | BOX | 27 hr |
| Nov 11, 3:05 PM EST | Red Flag Warning | BOX | 51 hr |
| Nov 14, 3:01 PM EST | Red Flag Warning | BOX | 51 hr |
| Nov 18, 6:29 PM EST | Red Flag Warning | BOX | 24 hr |
| Dec 3, 1:34 PM EST | Winter Weather Advisory | BOX | 44 hr |
| Dec 4, 3:54 AM EST | Wind Advisory | BOX | 42 hr |
| Dec 5, 12:53 PM EST | Snow Squall Warning | BOX | 37 min |
| Dec 9, 3:04 AM EST | Winter Weather Advisory | BOX | 31 hr |
| Dec 10, 3:14 AM EST | Flood Watch | BOX | 45 hr |
| Dec 27, 3:19 AM EST | Winter Weather Advisory | BOX | 32 hr |
| Dec 28, 11:28 PM EST | Dense Fog Advisory | BOX | 12 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 | 31 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 6 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 26 |
| Special Weather Statement | 6 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 2 |
| River Flood Warning | 1 |
| Flood Watch | 4 |
| Winter | |
| Snow Squall Warning | 4 |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 4 |
| Winter Weather Advisory | 12 |
| Heat | |
| Excessive Heat Watch | 2 |
| Heat Advisory | 5 |
| Cold | |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 6 |
| Fire | |
| Red Flag Warning | 8 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20232025
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.