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

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings110%0
Flash flood warnings00

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 1, 7:29 AM ESTSnow Squall WarningBOX61 min
Jan 1, 8:28 AM ESTSnow Squall WarningBOX47 min
Jan 1, 8:46 AM ESTSnow Squall WarningBOX59 min
Jan 6, 12:22 AM ESTWinter Weather AdvisoryBOX34 hr
Jan 17, 1:17 PM ESTWinter Weather AdvisoryBOX42 hr
Jan 22, 11:44 AM ESTWinter Storm WatchBOX25 hr
Jan 22, 11:48 AM ESTCold Weather AdvisoryBOX46 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 29, 11:36 AM ESTCoastal Flood WatchBOX49 hr
Jan 30, 12:17 PM ESTCold Weather AdvisoryBOX20 hr
Jan 31, 12:47 AM ESTCoastal Flood AdvisoryBOX61 hr
Feb 6, 12:20 AM ESTCold Weather AdvisoryBOX61 hr
Feb 6, 12:16 PM ESTWinter Weather AdvisoryBOX25 min
Feb 6, 12:41 PM ESTWinter Weather AdvisoryBOX32 hr
Feb 10, 1:20 AM ESTWinter Weather AdvisoryBOX25 hr
Feb 20, 12:15 PM ESTWinter Storm WatchBOX38 hr
Feb 20, 12:24 PM ESTCoastal Flood WatchBOX4 days
Feb 21, 12:29 PM ESTBlizzard WarningBOX55 hr
Feb 22, 3:33 PM ESTCoastal Flood AdvisoryBOX15 hr
Feb 23, 5:13 AM ESTMesoscale DiscussionSPC5 hr
Feb 23, 9:08 PM ESTCoastal Flood AdvisoryBOX9 hr
Mar 3, 6:52 PM ESTMesoscale DiscussionSPC6 hr
Mar 4, 12:18 PM ESTWinter Weather AdvisoryBOX48 hr
Mar 14, 12:09 PM EDTHigh Wind WatchBOX36 hr
Mar 15, 12:14 PM EDTFlood WatchBOX38 hr
Mar 16, 12:11 AM EDTHigh Wind WarningBOX30 hr
Apr 18, 2:13 PM EDTCoastal Flood StatementBOX14 hr
May 4, 11:43 AM EDTWind AdvisoryBOX30 hr
May 18, 12:57 PM EDTHeat AdvisoryBOX54 hr
May 19, 3:23 PM EDTMesoscale DiscussionSPC67 min
May 19, 6:05 PM EDTSevere Thunderstorm WarningBOX27 min
May 29, 3:59 AM EDTWind AdvisoryBOX40 hr
Jun 13, 2:00 PM EDTCoastal Flood StatementBOX4 days
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
Jul 8, 8:51 AM EDTRip Current StatementBOX14 hr
Jul 13, 2:37 AM EDTHeat AdvisoryBOX57 hr
Jul 21, 5:11 PM EDTSpecial Weather StatementBOX94 min
Aug 3, 3:28 AM EDTMesoscale DiscussionSPC2 hr
Aug 5, 1:25 PM EDTHeat AdvisoryBOX55 hr
Aug 8, 6:34 PM EDTMesoscale DiscussionSPC116 min
Aug 17, 1:50 PM EDTRip Current StatementBOX30 hr
Sep 5, 2:15 AM EDTRip Current StatementBOX42 hr
Sep 7, 4:39 AM EDTRip Current StatementBOX15 hr
Sep 12, 2:20 AM EDTFlood WatchBOX38 hr
Sep 18, 1:55 PM EDTRip Current StatementBOX30 hr
Sep 21, 2:15 PM EDTRip Current StatementBOX30 hr
Sep 23, 3:09 PM EDTCoastal Flood WatchBOX35 hr
Sep 23, 3:33 PM EDTHigh Wind WatchBOX21 hr
Sep 24, 2:08 AM EDTHigh Surf AdvisoryBOX4 days
Sep 24, 12:38 PM EDTHigh Wind WarningBOX62 hr
Sep 25, 1:53 AM EDTCoastal Flood WarningBOX66 hr
Sep 26, 12:18 PM EDTFlood WatchBOX62 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.