Alert archive / Massachusetts / Franklin County

Weather alerts in Franklin County, Massachusetts, 2013

201 weather alerts in 2013, 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 2013. Tap one for its archive.

Alerts
201
Warnings
41
Watches
31
Advisories
65
Busiest month
June38 alerts
Busiest day
May 22, 201311 alerts

Over time

By month

Warning verification

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

0 of 4 tornado warnings covering Franklin County in 2013 had a tornado report inside them.

Franklin County, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings40100%0
Severe thunderstorm warnings191521%3181%26 min
Flash flood warnings10460%5100%86 min

Each office's whole area, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Boston/Norton, MA: tornado warnings120100%40%
NWS Boston/Norton, MA: severe thunderstorm warnings914847%16964%23 min
NWS Boston/Norton, MA: flash flood warnings612362%9781%66 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 11, 3:56 AM ESTFreezing Rain AdvisoryBOX27 hr
Jan 12, 4:56 PM ESTDense Fog AdvisoryBOX38 hr
Jan 15, 4:05 AM ESTWinter Weather AdvisoryBOX39 hr
Jan 20, 3:57 AM ESTWind AdvisoryBOX15 hr
Jan 22, 4:02 AM ESTWind Chill AdvisoryBOX30 hr
Jan 23, 10:35 AM ESTWind Chill AdvisoryBOX23 hr
Jan 24, 9:55 AM ESTWind Chill AdvisoryBOX24 hr
Jan 27, 3:59 PM ESTWinter Weather AdvisoryBOX36 hr
Jan 29, 4:26 AM ESTHigh Wind WatchBOX32 hr
Jan 29, 3:43 PM ESTFreezing Rain AdvisoryBOX9 hr
Jan 30, 4:53 AM ESTHigh Wind WarningBOX29 hr
Jan 30, 8:16 AM ESTDense Fog AdvisoryBOX20 hr
Jan 30, 3:00 PM ESTFlood WatchBOX16 hr
Jan 31, 5:22 AM ESTAreal Flood AdvisoryBOX3 hr
Jan 31, 9:19 AM ESTWind AdvisoryBOX9 hr
Feb 6, 4:18 AM ESTWinter Storm WatchBOX36 hr
Feb 7, 3:55 PM ESTWinter Storm WarningBOX44 hr
Feb 8, 4:51 PM ESTMesoscale DiscussionSPC4 hr
Feb 8, 8:37 PM ESTMesoscale DiscussionSPC6 hr
Feb 10, 4:07 PM ESTWinter Weather AdvisoryBOX21 hr
Feb 11, 4:08 PM ESTDense Fog AdvisoryBOX10 hr
Feb 22, 3:54 AM ESTWinter Storm WatchBOX24 hr
Feb 23, 3:45 AM ESTWinter Weather AdvisoryBOX44 hr
Feb 25, 4:37 PM ESTWinter Storm WatchBOX24 hr
Feb 26, 1:14 AM ESTDense Fog AdvisoryBOX6 hr
Feb 26, 4:52 AM ESTWinter Storm WarningBOX35 hr
Feb 26, 4:41 PM ESTWinter Weather AdvisoryBOX15 hr
Mar 6, 4:20 PM ESTWinter Storm WarningBOX51 hr
Mar 6, 4:20 PM ESTWinter Weather AdvisoryBOX52 hr
Mar 11, 3:17 PM EDTFlood WatchBOX37 hr
Mar 17, 4:11 PM EDTWinter Storm WatchBOX13 hr
Mar 18, 4:53 AM EDTWinter Storm WarningBOX37 hr
Apr 6, 4:42 AM EDTRed Flag WarningBOX12 hr
Apr 11, 3:54 AM EDTWinter Weather AdvisoryBOX24 hr
Apr 12, 4:06 AM EDTWinter Weather AdvisoryBOX24 hr
Apr 19, 9:56 PM EDTSpecial Weather StatementBOX49 min
Apr 19, 10:20 PM EDTSevere Thunderstorm WarningBOX40 min
Apr 19, 10:28 PM EDTMesoscale DiscussionSPC92 min
May 9, 6:37 PM EDTAreal Flood AdvisoryBOX113 min
May 21, 12:54 PM EDTMesoscale DiscussionSPC66 min
May 21, 2:03 PM EDTSevere Thunderstorm WatchSPC7 hr
May 21, 4:37 PM EDTMesoscale DiscussionSPC53 min
May 21, 8:29 PM EDTMesoscale DiscussionSPC61 min
May 21, 10:51 PM EDTSpecial Weather StatementBOX39 min
May 21, 10:53 PM EDTSpecial Weather StatementALY67 min
May 22, 12:58 PM EDTSevere Thunderstorm WatchSPC10 hr
May 22, 3:36 PM EDTSpecial Weather StatementBOX84 min
May 22, 4:28 PM EDTMesoscale DiscussionSPC92 min
May 22, 4:35 PM EDTSpecial Weather StatementBOX40 min
May 22, 4:55 PM EDTSevere Thunderstorm WarningBOX65 min
May 22, 5:03 PM EDTTornado WarningBOX42 min
May 22, 5:40 PM EDTTornado WarningBOX50 min
May 22, 5:59 PM EDTTornado WarningBOX46 min
May 22, 8:21 PM EDTMesoscale DiscussionSPC54 min
May 23, 11:23 AM EDTMesoscale DiscussionSPC3 hr
May 23, 1:29 PM EDTSpecial Weather StatementBOX2 hr
May 23, 2:01 PM EDTFlash Flood WarningBOX119 min
May 23, 6:03 PM EDTAreal Flood AdvisoryBOX3 hr
May 23, 9:32 PM EDTAreal Flood AdvisoryBOX3 hr
May 23, 9:41 PM EDTFlash Flood WatchBOX12 hr
May 26, 4:34 PM EDTFrost AdvisoryBOX14 hr
May 29, 11:38 AM EDTMesoscale DiscussionSPC2 hr
May 29, 6:56 PM EDTSevere Thunderstorm WatchSPC4 hr
May 29, 7:38 PM EDTSpecial Weather StatementBOX37 min
May 29, 7:50 PM EDTSevere Thunderstorm WarningBOX55 min
May 29, 8:16 PM EDTAreal Flood AdvisoryBOX59 min
May 29, 8:32 PM EDTSevere Thunderstorm WarningBOX58 min
May 29, 8:45 PM EDTAreal Flood AdvisoryBOX60 min
May 29, 9:38 PM EDTMesoscale DiscussionSPC67 min
Jun 2, 11:33 AM EDTSevere Thunderstorm WatchSPC8 hr
Jun 2, 1:52 PM EDTMesoscale DiscussionSPC83 min
Jun 2, 4:26 PM EDTMesoscale DiscussionSPC94 min
Jun 2, 6:36 PM EDTSevere Thunderstorm WarningBOX39 min
Jun 2, 6:53 PM EDTMesoscale DiscussionSPC97 min
Jun 2, 10:21 PM EDTAreal Flood AdvisoryBOX114 min
Jun 6, 3:50 PM EDTFlood WatchBOX41 hr
Jun 7, 5:20 PM EDTAreal Flood WarningBOX4 hr
Jun 10, 4:00 AM EDTFlood WatchBOX40 hr
Jun 12, 10:47 AM EDTFlood WatchBOX61 hr
Jun 17, 12:07 PM EDTMesoscale DiscussionSPC83 min
Jun 17, 1:14 PM EDTSevere Thunderstorm WatchSPC6 hr
Jun 17, 1:51 PM EDTSpecial Weather StatementBOX114 min
Jun 17, 2:34 PM EDTSpecial Weather StatementBOX116 min
Jun 24, 2:36 PM EDTSpecial Weather StatementBOX54 min
Jun 24, 3:25 PM EDTMesoscale DiscussionSPC65 min
Jun 24, 3:56 PM EDTSpecial Weather StatementBOX49 min
Jun 24, 4:58 PM EDTSpecial Weather StatementBOX62 min
Jun 24, 5:08 PM EDTSpecial Weather StatementBOX52 min
Jun 24, 5:15 PM EDTSevere Thunderstorm WarningBOX60 min
Jun 24, 5:31 PM EDTSevere Thunderstorm WarningBOX59 min
Jun 24, 6:10 PM EDTSevere Thunderstorm WarningBOX65 min
Jun 25, 5:45 PM EDTMesoscale DiscussionSPC60 min
Jun 25, 6:16 PM EDTSpecial Weather StatementBOX44 min
Jun 26, 4:07 PM EDTFlash Flood WatchBOX57 hr
Jun 28, 12:47 PM EDTMesoscale DiscussionSPC2 hr
Jun 28, 2:27 PM EDTAreal Flood AdvisoryBOX63 min
Jun 28, 5:57 PM EDTSpecial Weather StatementBOX48 min
Jun 28, 6:07 PM EDTSevere Thunderstorm WarningBOX38 min
Jun 28, 6:26 PM EDTFlash Flood WarningBOX2 hr
Jun 29, 1:22 PM EDTMesoscale DiscussionSPC113 min
Jun 30, 2:27 PM EDTSpecial Weather StatementBOX48 min
Jun 30, 2:33 PM EDTMesoscale DiscussionSPC2 hr
Jun 30, 2:52 PM EDTSpecial Weather StatementBOX38 min
Jun 30, 4:14 PM EDTAreal Flood AdvisoryBOX2 hr
Jun 30, 4:18 PM EDTSpecial Weather StatementBOX42 min
Jun 30, 4:35 PM EDTFlash Flood WarningBOX115 min
Jun 30, 5:01 PM EDTSpecial Weather StatementBOX44 min
Jul 1, 4:01 AM EDTFlash Flood WatchBOX64 hr
Jul 1, 12:02 PM EDTFlash Flood WarningBOX3 hr
Jul 3, 7:24 PM EDTHeat AdvisoryBOX25 hr
Jul 4, 3:55 PM EDTHeat AdvisoryBOX27 hr
Jul 7, 2:16 PM EDTMesoscale DiscussionSPC119 min
Jul 7, 2:32 PM EDTSpecial Weather StatementBOX43 min
Jul 7, 2:37 PM EDTSevere Thunderstorm WarningBOX38 min
Jul 7, 3:04 PM EDTSevere Thunderstorm WarningBOX41 min
Jul 7, 3:07 PM EDTTornado WarningBOX23 min
Jul 8, 4:20 AM EDTFlash Flood WatchBOX15 hr
Jul 10, 4:07 AM EDTFlash Flood WatchBOX38 hr
Jul 16, 4:10 PM EDTHeat AdvisoryBOX27 hr
Jul 17, 4:51 PM EDTHeat AdvisoryBOX26 hr
Jul 18, 5:00 PM EDTHeat AdvisoryBOX23 hr
Jul 18, 7:59 PM EDTSevere Thunderstorm WarningBOX46 min
Jul 20, 2:08 PM EDTSevere Thunderstorm WatchSPC7 hr
Jul 22, 10:31 PM EDTAreal Flood AdvisoryBOX3 hr
Jul 23, 1:14 AM EDTFlash Flood WarningBOX2 hr
Jul 23, 4:12 AM EDTFlash Flood WatchBOX15 hr
Jul 23, 5:40 AM EDTAreal Flood AdvisoryBOX3 hr
Jul 23, 6:15 AM EDTFlash Flood WarningBOX2 hr
Jul 23, 6:47 AM EDTAreal Flood AdvisoryBOX3 hr
Jul 23, 10:22 AM EDTAreal Flood AdvisoryBOX113 min
Aug 4, 2:51 PM EDTSpecial Weather StatementBOX24 min
Aug 4, 3:17 PM EDTSpecial Weather StatementBOX43 min
Aug 9, 4:11 AM EDTFlash Flood WatchBOX15 hr
Aug 9, 7:31 AM EDTAreal Flood AdvisoryBOX119 min
Aug 9, 12:33 PM EDTFlash Flood WarningBOX3 hr
Aug 28, 5:31 PM EDTSevere Thunderstorm WarningBOX29 min
Aug 28, 5:52 PM EDTAreal Flood AdvisoryBOX113 min
Aug 28, 6:16 PM EDTFlash Flood WarningBOX119 min
Aug 28, 11:42 PM EDTAreal Flood AdvisoryBOX2 hr
Aug 31, 3:20 PM EDTSpecial Weather StatementBOX40 min
Aug 31, 3:34 PM EDTSevere Thunderstorm WarningBOX41 min
Aug 31, 3:36 PM EDTFlash Flood WarningBOX4 hr
Sep 1, 2:57 AM EDTAreal Flood AdvisoryBOX63 min
Sep 2, 4:21 AM EDTFlash Flood WatchBOX21 hr
Sep 2, 9:54 PM EDTSpecial Weather StatementBOX51 min
Sep 5, 3:50 PM EDTFrost AdvisoryBOX15 hr
Sep 10, 10:22 AM EDTSpecial Weather StatementBOX53 min
Sep 10, 4:26 PM EDTHeat AdvisoryBOX26 hr
Sep 11, 2:33 PM EDTSevere Thunderstorm WatchSPC9 hr
Sep 11, 6:54 PM EDTMesoscale DiscussionSPC96 min
Sep 11, 7:28 PM EDTSpecial Weather StatementBOX62 min
Sep 11, 7:54 PM EDTSevere Thunderstorm WarningBOX66 min
Sep 11, 8:27 PM EDTSevere Thunderstorm WarningBOX63 min
Sep 11, 9:44 PM EDTMesoscale DiscussionSPC61 min
Sep 12, 12:24 PM EDTMesoscale DiscussionSPC66 min
Sep 12, 1:03 PM EDTSevere Thunderstorm WatchSPC9 hr
Sep 12, 1:47 PM EDTFlash Flood WatchBOX8 hr
Sep 12, 2:10 PM EDTSevere Thunderstorm WarningBOX65 min
Sep 12, 2:25 PM EDTFlash Flood WarningBOX3 hr
Sep 12, 3:26 PM EDTMesoscale DiscussionSPC64 min
Sep 12, 3:45 PM EDTSpecial Weather StatementBOX45 min
Sep 12, 6:48 PM EDTAreal Flood AdvisoryBOX3 hr
Sep 12, 8:03 PM EDTMesoscale DiscussionSPC57 min
Sep 16, 4:09 AM EDTFrost AdvisoryBOX28 hr
Sep 17, 4:08 AM EDTFrost AdvisoryBOX28 hr
Sep 23, 3:31 PM EDTFrost AdvisoryBOX16 hr
Sep 29, 3:57 PM EDTDense Fog AdvisoryBOX14 hr
Oct 6, 7:15 PM EDTDense Fog AdvisoryBOX9 hr
Oct 7, 4:21 AM EDTWind AdvisoryBOX18 hr
Oct 7, 2:09 PM EDTSpecial Weather StatementBOX111 min
Oct 7, 2:26 PM EDTMesoscale DiscussionSPC2 hr
Oct 7, 2:50 PM EDTSevere Thunderstorm WatchSPC7 hr
Oct 7, 3:16 PM EDTSpecial Weather StatementBOX89 min
Oct 7, 3:51 PM EDTAreal Flood AdvisoryBOX3 hr
Oct 7, 4:02 PM EDTSevere Thunderstorm WarningBOX58 min
Oct 7, 4:29 PM EDTMesoscale DiscussionSPC91 min
Oct 7, 4:57 PM EDTSevere Thunderstorm WarningBOX63 min
Oct 8, 4:32 AM EDTFrost AdvisoryBOX28 hr
Oct 13, 4:22 AM EDTFrost AdvisoryBOX27 hr
Oct 31, 3:34 PM EDTWind AdvisoryBOX24 hr
Nov 1, 10:26 AM EDTSpecial Weather StatementBOX64 min
Nov 18, 2:31 AM ESTMesoscale DiscussionSPC89 min
Nov 18, 4:48 AM ESTSpecial Weather StatementBOX87 min
Nov 18, 5:11 AM ESTMesoscale DiscussionSPC3 hr
Nov 23, 4:45 PM ESTWind AdvisoryBOX31 hr
Nov 26, 11:45 AM ESTFlood WatchBOX28 hr
Nov 26, 7:05 PM ESTFreezing Rain AdvisoryBOX7 hr
Nov 27, 4:34 AM ESTAreal Flood AdvisoryBOX12 hr
Nov 27, 4:10 PM ESTFlood WatchBOX110 min
Dec 1, 5:37 AM ESTFreezing Rain AdvisoryBOX5 hr
Dec 5, 1:25 PM ESTDense Fog AdvisoryBOX14 hr
Dec 6, 4:08 AM ESTWinter Weather AdvisoryBOX23 hr
Dec 8, 4:25 AM ESTWinter Weather AdvisoryBOX35 hr
Dec 13, 4:27 AM ESTWinter Storm WatchBOX25 hr
Dec 13, 4:14 PM ESTWinter Storm WarningBOX38 hr
Dec 14, 8:16 PM ESTMesoscale DiscussionSPC6 hr
Dec 15, 3:37 AM ESTMesoscale DiscussionSPC6 hr
Dec 15, 9:08 AM ESTWinter Weather AdvisoryBOX3 hr
Dec 16, 4:03 PM ESTWinter Weather AdvisoryBOX30 hr
Dec 26, 12:21 PM ESTSpecial Weather StatementBOX114 min
Dec 29, 11:13 AM ESTWinter Weather AdvisoryBOX11 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 archive20122014

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.