Alert archive / Massachusetts / Suffolk County

Weather alerts in Suffolk County, Massachusetts, 2022

106 weather alerts in 2022, 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 2022. Tap one for its archive.

Alerts
106
Warnings
17
Watches
14
Advisories
32
Busiest month
January26 alerts
Busiest day
January 29, 20225 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, 2022

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings880%6100%31 min
Flash flood warnings00

Each office's whole area, 2022

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Boston/Norton, MA: tornado warnings20100%0
NWS Boston/Norton, MA: severe thunderstorm warnings634627%23177%27 min
NWS Boston/Norton, MA: flash flood warnings10280%475%37 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.

IssuedProductOfficeLasted
Jan 1, 1:05 AM ESTDense Fog AdvisoryBOX11 hr
Jan 1, 6:01 PM ESTDense Fog AdvisoryBOX10 hr
Jan 2, 3:52 AM ESTCoastal Flood StatementBOX24 hr
Jan 3, 3:38 AM ESTCoastal Flood AdvisoryBOX10 hr
Jan 3, 2:15 PM ESTCoastal Flood AdvisoryBOX24 hr
Jan 5, 2:08 PM ESTWinter Storm WatchBOX13 hr
Jan 6, 3:24 AM ESTWinter Storm WarningBOX34 hr
Jan 7, 4:12 AM ESTMesoscale DiscussionSPC5 hr
Jan 13, 3:25 PM ESTWind Chill AdvisoryBOX45 hr
Jan 13, 3:29 PM ESTWind AdvisoryBOX32 hr
Jan 15, 3:15 PM ESTHigh Wind WatchBOX12 hr
Jan 15, 3:20 PM ESTCoastal Flood WatchBOX12 hr
Jan 16, 2:48 AM ESTHigh Wind WarningBOX33 hr
Jan 16, 3:02 AM ESTCoastal Flood WarningBOX34 hr
Jan 17, 2:24 AM ESTMesoscale DiscussionSPC6 hr
Jan 17, 4:13 AM ESTSpecial Weather StatementBOX62 min
Jan 17, 5:30 AM ESTSpecial Weather StatementBOX90 min
Jan 17, 8:22 AM ESTMesoscale DiscussionSPC6 hr
Jan 26, 2:59 PM ESTWinter Storm WatchBOX37 hr
Jan 28, 3:35 AM ESTBlizzard WarningBOX43 hr
Jan 28, 3:37 PM ESTCoastal Flood AdvisoryBOX31 hr
Jan 29, 3:50 AM ESTCoastal Flood WarningBOX7 hr
Jan 29, 4:25 AM ESTMesoscale DiscussionSPC6 hr
Jan 29, 10:50 AM ESTCoastal Flood AdvisoryBOX2 hr
Jan 29, 10:57 AM ESTMesoscale DiscussionSPC5 hr
Jan 29, 5:48 PM ESTMesoscale DiscussionSPC6 hr
Feb 2, 3:49 AM ESTWinter Storm WatchBOX23 hr
Feb 3, 2:44 AM ESTWinter Weather AdvisoryBOX46 hr
Feb 3, 12:35 PM ESTDense Fog AdvisoryBOX12 hr
Feb 4, 10:20 AM ESTMesoscale DiscussionSPC6 hr
Feb 4, 6:13 PM ESTMesoscale DiscussionSPC3 hr
Feb 12, 3:28 PM ESTWinter Weather AdvisoryBOX43 hr
Feb 15, 2:40 PM ESTHigh Wind WatchBOX36 hr
Feb 16, 2:44 PM ESTHigh Wind WarningBOX42 hr
Feb 19, 12:58 PM ESTMesoscale DiscussionSPC4 hr
Feb 22, 2:47 AM ESTWind AdvisoryBOX25 hr
Feb 23, 3:00 AM ESTWinter Storm WatchBOX34 hr
Feb 24, 2:54 AM ESTWinter Storm WarningBOX36 hr
Feb 25, 2:20 AM ESTMesoscale DiscussionSPC6 hr
Feb 27, 8:37 PM ESTSpecial Weather StatementBOX53 min
Feb 27, 10:10 PM ESTSpecial Weather StatementBOX65 min
Mar 6, 5:51 AM ESTDense Fog AdvisoryBOX4 hr
Mar 6, 3:35 PM ESTWind AdvisoryBOX36 hr
Mar 7, 8:52 PM ESTMesoscale DiscussionSPC113 min
Mar 7, 10:16 PM ESTSevere Thunderstorm WarningBOX47 min
Mar 11, 3:01 PM ESTWind AdvisoryBOX42 hr
Mar 12, 6:51 AM ESTDense Fog AdvisoryBOX2 hr
Mar 17, 6:58 AM EDTDense Fog AdvisoryBOX3 hr
Mar 19, 5:25 AM EDTDense Fog AdvisoryBOX7 hr
Apr 18, 3:26 AM EDTWind AdvisoryBOX29 hr
Apr 18, 3:04 PM EDTCoastal Flood StatementBOX13 hr
May 12, 7:59 PM EDTDense Fog AdvisoryBOX12 hr
May 16, 3:36 AM EDTCoastal Flood StatementBOX25 hr
May 16, 6:43 PM EDTMesoscale DiscussionSPC62 min
May 20, 3:16 AM EDTDense Fog AdvisoryBOX7 hr
May 20, 3:16 AM EDTHeat AdvisoryBOX65 hr
May 22, 4:59 PM EDTSevere Thunderstorm WarningBOX61 min
Jun 14, 3:17 PM EDTCoastal Flood StatementBOX12 hr
Jun 15, 3:39 AM EDTCoastal Flood StatementBOX23 hr
Jun 17, 12:40 PM EDTMesoscale DiscussionSPC2 hr
Jul 2, 2:37 PM EDTSevere Thunderstorm WatchSPC6 hr
Jul 2, 4:25 PM EDTMesoscale DiscussionSPC2 hr
Jul 2, 5:52 PM EDTSevere Thunderstorm WarningBOX38 min
Jul 2, 6:23 PM EDTSpecial Weather StatementBOX52 min
Jul 12, 6:01 PM EDTMesoscale DiscussionSPC119 min
Jul 13, 2:54 AM EDTCoastal Flood StatementBOX23 hr
Jul 14, 2:37 AM EDTCoastal Flood AdvisoryBOX24 hr
Jul 14, 3:16 PM EDTMesoscale DiscussionSPC2 hr
Jul 15, 3:37 AM EDTCoastal Flood StatementBOX24 hr
Jul 16, 3:35 AM EDTCoastal Flood StatementBOX24 hr
Jul 19, 3:36 AM EDTHeat AdvisoryBOX64 hr
Jul 22, 3:29 AM EDTHeat AdvisoryBOX4 days
Jul 25, 11:25 AM EDTMesoscale DiscussionSPC95 min
Jul 25, 1:04 PM EDTSevere Thunderstorm WatchSPC7 hr
Aug 2, 2:26 PM EDTHeat AdvisoryBOX7 days
Aug 5, 2:35 PM EDTSpecial Weather StatementBOX55 min
Aug 5, 4:10 PM EDTSevere Thunderstorm WarningBOX36 min
Aug 5, 4:42 PM EDTSpecial Weather StatementBOX63 min
Aug 7, 6:42 PM EDTSevere Thunderstorm WarningBOX48 min
Aug 7, 7:30 PM EDTSevere Thunderstorm WarningBOX32 min
Aug 11, 3:02 PM EDTCoastal Flood AdvisoryBOX12 hr
Aug 12, 3:32 PM EDTCoastal Flood StatementBOX10 hr
Aug 16, 2:54 AM EDTHigh Surf AdvisoryBOX41 hr
Aug 22, 12:52 PM EDTSpecial Weather StatementBOX53 min
Aug 23, 3:22 PM EDTMesoscale DiscussionSPC2 hr
Aug 26, 12:25 PM EDTMesoscale DiscussionSPC2 hr
Aug 26, 1:02 PM EDTSevere Thunderstorm WatchSPC7 hr
Aug 26, 3:24 PM EDTSevere Thunderstorm WarningBOX66 min
Aug 26, 3:54 PM EDTMesoscale DiscussionSPC2 hr
Aug 26, 4:27 PM EDTSevere Thunderstorm WarningBOX42 min
Sep 5, 3:08 AM EDTFlood WatchBOX34 hr
Sep 13, 5:33 PM EDTMesoscale DiscussionSPC117 min
Sep 22, 8:50 AM EDTSpecial Weather StatementBOX55 min
Oct 13, 2:45 PM EDTFlood WatchBOX15 hr
Oct 13, 11:45 PM EDTSpecial Weather StatementBOX60 min
Oct 25, 5:47 PM EDTDense Fog AdvisoryBOX16 hr
Oct 29, 3:00 PM EDTFrost AdvisoryBOX18 hr
Nov 24, 3:14 PM ESTCoastal Flood StatementBOX24 hr
Nov 26, 3:17 PM ESTCoastal Flood StatementBOX25 hr
Nov 29, 2:57 AM ESTWind AdvisoryBOX60 hr
Dec 14, 1:27 AM ESTSpecial Weather StatementBOX33 min
Dec 15, 3:25 AM ESTWind AdvisoryBOX42 hr
Dec 20, 2:44 PM ESTCoastal Flood WatchBOX37 hr
Dec 21, 3:25 AM ESTHigh Wind WatchBOX11 hr
Dec 21, 2:53 PM ESTHigh Wind WarningBOX58 hr
Dec 22, 3:55 AM ESTCoastal Flood WarningBOX34 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 archive20212023

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.