Alert archive / Massachusetts / Franklin County

Weather alerts in Franklin County, Massachusetts, 2026

70 weather alerts in 2026, 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 2026. Tap one for its archive.

Alerts
70
Warnings
21
Watches
9
Advisories
23
Busiest month
January17 alerts
Busiest day
June 18, 20266 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

Franklin County, 2026

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings13130%16100%31 min
Flash flood warnings220%10%

Each office's whole area, 2026

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Boston/Norton, MA: tornado warnings20100%0
NWS Boston/Norton, MA: severe thunderstorm warnings524317%13494%26 min
NWS Boston/Norton, MA: flash flood warnings141214%4994%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.

IssuedProductOfficeLasted
Jan 6, 12:22 AM ESTWinter Weather AdvisoryBOX34 hr
Jan 10, 12:58 AM ESTWinter Weather AdvisoryBOX27 hr
Jan 11, 12:53 AM ESTWind AdvisoryBOX32 hr
Jan 11, 5:22 PM ESTSpecial Weather StatementBOX53 min
Jan 16, 1:48 PM ESTWinter Weather AdvisoryBOX27 hr
Jan 17, 9:55 AM ESTMesoscale DiscussionSPC3 hr
Jan 17, 1:17 PM ESTWinter Weather AdvisoryBOX42 hr
Jan 22, 12:17 AM ESTExtreme Cold WatchBOX12 hr
Jan 22, 11:44 AM ESTWinter Storm WatchBOX25 hr
Jan 22, 11:48 AM ESTCold Weather AdvisoryBOX46 hr
Jan 22, 11:48 AM ESTExtreme Cold WarningBOX49 hr
Jan 23, 12:28 PM ESTWinter Storm WarningBOX3 days
Jan 25, 4:02 PM ESTMesoscale DiscussionSPC4 hr
Jan 25, 7:26 PM ESTMesoscale DiscussionSPC5 hr
Jan 29, 12:31 AM ESTCold Weather AdvisoryBOX34 hr
Jan 30, 12:17 PM ESTCold Weather AdvisoryBOX20 hr
Jan 31, 12:19 PM ESTCold Weather AdvisoryBOX22 hr
Feb 5, 1:04 AM ESTExtreme Cold WatchBOX23 hr
Feb 6, 12:20 AM ESTExtreme Cold WarningBOX61 hr
Feb 8, 12:42 PM ESTCold Weather AdvisoryBOX21 hr
Feb 10, 1:20 AM ESTWinter Weather AdvisoryBOX25 hr
Feb 17, 11:38 AM ESTWinter Weather AdvisoryBOX25 hr
Feb 19, 12:13 PM ESTWinter Weather AdvisoryBOX39 hr
Feb 20, 12:15 PM ESTWinter Storm WatchBOX38 hr
Feb 20, 1:27 PM ESTMesoscale DiscussionSPC5 hr
Feb 21, 12:29 PM ESTWinter Storm WarningBOX52 hr
Mar 2, 12:54 PM ESTWinter Weather AdvisoryBOX39 hr
Mar 3, 6:52 PM ESTMesoscale DiscussionSPC6 hr
Mar 4, 12:18 PM ESTWinter Weather AdvisoryBOX48 hr
Mar 5, 9:32 PM ESTMesoscale DiscussionSPC6 hr
Mar 13, 2:16 PM EDTWind AdvisoryBOX29 hr
Mar 15, 12:13 PM EDTWind AdvisoryBOX44 hr
Mar 15, 12:14 PM EDTFlood WatchBOX38 hr
Mar 31, 8:40 PM EDTSevere Thunderstorm WarningBOX50 min
Apr 14, 12:50 PM EDTMesoscale DiscussionSPC2 hr
Apr 14, 7:09 PM EDTSevere Thunderstorm WarningBOX66 min
May 18, 12:57 PM EDTHeat AdvisoryBOX54 hr
May 19, 3:23 PM EDTMesoscale DiscussionSPC67 min
May 19, 5:15 PM EDTSevere Thunderstorm WarningBOX60 min
Jun 10, 1:21 AM EDTHeat AdvisoryBOX67 hr
Jun 12, 1:48 PM EDTMesoscale DiscussionSPC117 min
Jun 18, 9:31 AM EDTMesoscale DiscussionSPC119 min
Jun 18, 1:25 PM EDTMesoscale DiscussionSPC2 hr
Jun 18, 1:45 PM EDTTornado WatchSPC5 hr
Jun 18, 3:00 PM EDTSevere Thunderstorm WarningBOX60 min
Jun 18, 4:05 PM EDTSevere Thunderstorm WarningBOX55 min
Jun 18, 4:06 PM EDTMesoscale DiscussionSPC84 min
Jun 28, 1:29 PM EDTExtreme Heat WatchBOX48 hr
Jun 30, 1:38 AM EDTExtreme Heat WarningBOX4 days
Jun 30, 1:25 PM EDTHeat AdvisoryBOX4 days
Jun 30, 2:54 PM EDTSevere Thunderstorm WarningBOX66 min
Jun 30, 5:55 PM EDTSevere Thunderstorm WarningBOX65 min
Jul 1, 10:32 PM EDTSevere Thunderstorm WarningBOX58 min
Jul 1, 10:59 PM EDTSevere Thunderstorm WarningBOX61 min
Jul 1, 11:58 PM EDTSevere Thunderstorm WarningBOX38 min
Jul 2, 10:56 PM EDTSevere Thunderstorm WarningBOX46 min
Jul 13, 2:37 AM EDTHeat AdvisoryBOX57 hr
Jul 27, 2:07 PM EDTFlood WatchBOX54 hr
Jul 29, 2:58 PM EDTFlash Flood WarningBOX95 min
Jul 29, 4:56 PM EDTAreal Flood WarningBOX3 hr
Jul 29, 5:50 PM EDTFlash Flood WarningBOX93 min
Aug 3, 12:13 PM EDTMesoscale DiscussionSPC2 hr
Aug 5, 1:25 PM EDTHeat AdvisoryBOX55 hr
Aug 6, 1:39 PM EDTMesoscale DiscussionSPC2 hr
Aug 8, 1:45 PM EDTSevere Thunderstorm WatchSPC6 hr
Aug 8, 4:01 PM EDTMesoscale DiscussionSPC119 min
Aug 8, 4:41 PM EDTSevere Thunderstorm WarningBOX64 min
Aug 8, 5:43 PM EDTSevere Thunderstorm WarningBOX62 min
Aug 14, 3:35 PM EDTMesoscale DiscussionSPC115 min
Sep 24, 12:38 PM EDTWind AdvisoryBOX71 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.