Alert archive / Massachusetts / 2021

Weather alerts in Massachusetts, May 2021

48 weather alerts in May 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 May 2021. Tap one for its archive.

Alerts
48
Warnings
13
Watches
3
Advisories
18
Busiest day
May 26, 202121 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.

IssuedProductOfficeCountiesLasted
May 1, 2:40 AM EDTSmall Craft AdvisoryBOX11 hr
May 2, 3:12 AM EDTSmall Craft AdvisoryBOX35 hr
May 4, 3:45 AM EDTSmall Craft AdvisoryBOX35 hr
May 5, 2:15 PM EDTSmall Craft AdvisoryBOX26 hr
May 8, 3:33 AM EDTSmall Craft AdvisoryBOX43 hr
May 9, 9:47 AM EDTSmall Craft AdvisoryBOX24 hr
May 11, 3:08 AM EDTSmall Craft AdvisoryBOX27 hr
May 11, 10:03 PM EDTSmall Craft AdvisoryBOX8 hr
May 12, 3:27 AM EDTFrost AdvisoryALYBerkshire29 hr
May 16, 1:38 PM EDTSpecial Marine WarningBOX15 min
May 16, 5:30 PM EDTSpecial Weather StatementBOXMiddlesex45 min
May 17, 4:19 PM EDTSpecial Weather StatementBOXHampshire26 min
May 21, 3:18 AM EDTSmall Craft AdvisoryBOX5 days
May 23, 3:27 AM EDTSmall Craft AdvisoryBOX18 hr
May 23, 1:20 PM EDTMesoscale DiscussionSPCBarnstable, Berkshire, Bristol, Dukes, Franklin, Hampden and 7 more115 min
May 23, 4:02 PM EDTSpecial Weather StatementBOXWorcester28 min
May 24, 6:37 PM EDTSmall Craft AdvisoryBOX39 hr
May 25, 10:05 PM EDTSmall Craft AdvisoryBOX12 hr
May 26, 9:51 AM EDTSmall Craft AdvisoryBOX21 hr
May 26, 12:59 PM EDTSevere Thunderstorm WatchSPCBerkshire7 hr
May 26, 3:21 PM EDTMesoscale DiscussionSPCFranklin, Hampden, Hampshire, Middlesex, Worcester54 min
May 26, 3:56 PM EDTSevere Thunderstorm WatchSPCEssex, Franklin, Hampden, Hampshire, Middlesex, Worcester5 hr
May 26, 4:23 PM EDTSevere Thunderstorm WarningALYBerkshire37 min
May 26, 4:41 PM EDTMesoscale DiscussionSPCBerkshire, Franklin, Hampden, Hampshire64 min
May 26, 4:57 PM EDTSevere Thunderstorm WarningALYBerkshire48 min
May 26, 4:58 PM EDTSpecial Weather StatementALYBerkshire32 min
May 26, 5:03 PM EDTSpecial Weather StatementBOXFranklin27 min
May 26, 5:30 PM EDTSpecial Weather StatementBOXFranklin45 min
May 26, 5:35 PM EDTSpecial Weather StatementALYBerkshire25 min
May 26, 5:47 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampshire, Worcester58 min
May 26, 5:54 PM EDTSevere Thunderstorm WarningALYBerkshire66 min
May 26, 6:07 PM EDTMesoscale DiscussionSPCHampden, Hampshire, Middlesex, Worcester113 min
May 26, 6:13 PM EDTSevere Thunderstorm WarningBOXFranklin, Middlesex, Worcester62 min
May 26, 6:39 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampden, Hampshire, Worcester66 min
May 26, 7:05 PM EDTSevere Thunderstorm WarningBOXHampden55 min
May 26, 7:15 PM EDTSpecial Weather StatementBOXEssex, Middlesex45 min
May 26, 7:21 PM EDTSpecial Marine WarningBOX54 min
May 26, 7:45 PM EDTSevere Thunderstorm WarningBOXHampden, Hampshire, Worcester60 min
May 26, 8:03 PM EDTSpecial Marine WarningBOX37 min
May 26, 9:37 PM EDTSevere Thunderstorm WarningBOXBristol, Norfolk38 min
May 27, 2:52 PM EDTGale WatchBOX13 hr
May 28, 3:39 AM EDTGale WarningBOX48 hr
May 28, 3:41 AM EDTWind AdvisoryBOXBarnstable, Dukes, Nantucket39 hr
May 28, 3:46 AM EDTCoastal Flood StatementBOXBarnstable, Essex, Nantucket, Norfolk, Plymouth, Suffolk24 hr
May 28, 4:13 PM EDTSmall Craft AdvisoryBOX12 hr
May 29, 4:03 AM EDTCoastal Flood StatementBOXBarnstable, Essex, Nantucket, Norfolk, Plymouth, Suffolk12 hr
May 29, 3:47 PM EDTSmall Craft AdvisoryBOX51 hr
May 29, 3:52 PM EDTCoastal Flood AdvisoryBOXBarnstable, Essex, Nantucket, Norfolk, Plymouth, Suffolk12 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

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.