Alert archive

Weather alerts in Massachusetts

22,781 weather alerts since 1986, 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 since 1986. Tap one for its archive.

Alerts
22,781
Warnings
8,814
Watches
2,011
Advisories
6,783
Busiest year
20181,453 alerts
Average year
556over 41 years on file

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

By month of the year

By product

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

ProductAlerts
Severe storms
Severe Thunderstorm Warning3,322
Tornado Warning181
Severe Thunderstorm Watch306
Tornado Watch41
Mesoscale Discussion1,165
Special Weather Statement3,665
Flooding
Areal Flood Warning351
Flash Flood Warning618
River Flood Warning351
Flash Flood Watch140
Flood Watch213
River Flood Watch20
Areal Flood Advisory1,039
Winter
Blizzard Warning23
Heavy Snow Warning17
Ice Storm Warning9
Snow Squall Warning52
Winter Storm Warning245
Blizzard Watch11
Winter Storm Watch256
Blowing Snow Advisory4
Freezing Rain Advisory65
Snow Advisory33
Snow and Blowing Snow Advisory2
Winter Weather Advisory704
Heat
Excessive Heat Warning14
Extreme Heat Warning3
Excessive Heat Watch14
Extreme Heat Watch3
Heat Advisory135
Cold
Extreme Cold Warning5
Freeze Warning104
Wind Chill Warning25
Extreme Cold Watch4
Freeze Watch36
Wind Chill Watch16
Cold Weather Advisory18
Frost Advisory220
Wind Chill Advisory114
Wind and dust
High Wind Warning188
High Wind Watch154
Wind Advisory765
Fire
Red Flag Warning106
Fire Weather Watch73
Fog and smoke
Dense Fog Advisory362
Tropical
Hurricane Warning6
Inland Tropical Storm Warning1
Storm Surge Warning1
Tropical Storm Warning22
Hurricane Watch6
Inland Tropical Storm Watch2
Storm Surge Watch2
Tropical Storm Watch17
Hurricane Local Statement2
Coast and beach
Coastal Flood Warning59
Coastal Flood Watch56
Coastal Flood Advisory248
High Surf Advisory106
Beach Hazards Statement1
Coastal Flood Statement188
Rip Current Statement82
Marine
Gale Warning832
Heavy Freezing Spray Warning19
Hurricane Force Wind Warning8
Special Marine Warning2,128
Storm Warning124
Gale Watch550
Heavy Freezing Spray Watch10
Hurricane Force Wind Watch4
Storm Watch77
Heavy Freezing Spray Advisory93
Marine Dense Fog Advisory3
Small Craft Advisory2,524
Small Craft Advisory for Hazardous Seas343
Small Craft Advisory for Winds5
Marine Weather Statement70

By county

Every county with at least one alert. A county page lists each alert that covered it.

The latest warnings

The most recent on file, newest first.

IssuedProductOfficeCountiesLasted
Sep 22, 1:58 AM EDTGale WarningBOX66 hr
Sep 13, 10:59 AM EDTFlash Flood WarningBOXBristol, Plymouth3 hr
Sep 13, 10:46 AM EDTFlash Flood WarningBOXBristol3 hr
Sep 9, 12:52 AM EDTGale WarningBOX34 hr
Sep 4, 5:41 AM EDTSpecial Marine WarningBOX64 min
Sep 4, 5:38 AM EDTSpecial Marine WarningBOX67 min
Sep 4, 4:57 AM EDTSpecial Marine WarningBOX23 min
Sep 4, 4:44 AM EDTSpecial Marine WarningBOX61 min
Sep 4, 4:35 AM EDTSpecial Marine WarningBOX44 min
Sep 4, 4:02 AM EDTSpecial Marine WarningBOX58 min
Sep 4, 3:41 AM EDTSpecial Marine WarningBOX53 min
Sep 4, 3:06 AM EDTSpecial Marine WarningBOX54 min

Nearby

Alerts in force nowTornadoes on recordThe radar archive

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.