Alert archive / Connecticut / Capitol Planning Region

Weather alerts in Capitol Planning Region, Connecticut, 2012

135 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Capitol Planning Region and its neighbors

Each county as a circle sized by its count in 2012. Tap one for its archive.

Alerts
135
Warnings
49
Watches
31
Advisories
55
Busiest month
August24 alerts
Busiest day
August 5, 20128 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 2 tornado warnings covering Capitol Planning Region in 2012 had a tornado report inside them.

Capitol Planning Region, 2012

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings20100%0
Severe thunderstorm warnings251444%0
Flash flood warnings8275%0

Each office's whole area, 2012

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Boston/Norton, MA: tornado warnings50100%0
NWS Boston/Norton, MA: severe thunderstorm warnings1196843%24467%25 min
NWS Boston/Norton, MA: flash flood warnings251444%5874%63 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
Dec 31, 8:20 PM ESTDense Fog AdvisoryBOX7 hr
Jan 11, 4:48 AM ESTWinter Weather AdvisoryBOX34 hr
Jan 12, 7:34 PM ESTWind AdvisoryBOX28 hr
Jan 16, 3:53 AM ESTWinter Weather AdvisoryBOX30 hr
Jan 17, 3:54 PM ESTWind AdvisoryBOX24 hr
Jan 20, 1:15 PM ESTWinter Weather AdvisoryBOX29 hr
Jan 22, 3:56 PM ESTFreezing Rain AdvisoryBOX31 hr
Jan 23, 11:09 AM ESTFreezing Rain AdvisoryBOX10 hr
Jan 26, 4:10 AM ESTWinter Weather AdvisoryBOX32 hr
Feb 24, 4:50 AM ESTWind AdvisoryBOX47 hr
Feb 28, 4:22 AM ESTWinter Storm WatchBOX24 hr
Feb 28, 3:44 PM ESTWinter Weather AdvisoryBOX50 hr
Mar 2, 3:54 PM ESTWinter Weather AdvisoryBOX18 hr
Mar 7, 4:15 PM ESTWind AdvisoryBOX35 hr
Mar 20, 3:54 PM EDTDense Fog AdvisoryBOX18 hr
Mar 26, 4:06 PM EDTFire Weather WatchBOX12 hr
Mar 27, 1:50 AM EDTRed Flag WarningBOX17 hr
Apr 2, 4:26 PM EDTFire Weather WatchBOX12 hr
Apr 3, 4:16 AM EDTRed Flag WarningBOX15 hr
Apr 3, 4:30 PM EDTFire Weather WatchBOX10 hr
Apr 4, 2:56 AM EDTRed Flag WarningBOX17 hr
Apr 7, 3:44 AM EDTRed Flag WarningBOX15 hr
Apr 8, 2:10 PM EDTFire Weather WatchBOX2 hr
Apr 8, 4:31 PM EDTRed Flag WarningBOX27 hr
Apr 15, 4:02 PM EDTFire Weather WatchBOX12 hr
Apr 16, 4:15 AM EDTRed Flag WarningBOX16 hr
Apr 16, 3:37 PM EDTFire Weather WatchBOX13 hr
Apr 17, 4:37 AM EDTRed Flag WarningBOX15 hr
Apr 21, 4:12 PM EDTFlood WatchBOX36 hr
Apr 22, 10:15 PM EDTAreal Flood AdvisoryBOX5 hr
Apr 25, 3:50 PM EDTFrost AdvisoryBOX16 hr
Apr 26, 3:38 PM EDTFreeze WatchBOX13 hr
Apr 27, 4:20 AM EDTFreeze WarningBOX30 hr
Apr 28, 3:45 AM EDTFreeze WatchBOX12 hr
Apr 28, 4:13 PM EDTFreeze WarningBOX16 hr
Apr 29, 4:21 AM EDTFreeze WatchBOX12 hr
Apr 29, 3:59 PM EDTFreeze WarningBOX17 hr
May 10, 3:13 AM EDTAreal Flood AdvisoryBOX107 min
May 16, 1:18 PM EDTSevere Thunderstorm WatchSPC9 hr
May 29, 3:44 PM EDTSevere Thunderstorm WatchSPC5 hr
Jun 2, 3:14 AM EDTAreal Flood AdvisoryBOX4 hr
Jun 19, 3:58 PM EDTHeat AdvisoryBOX27 hr
Jun 20, 4:14 PM EDTHeat AdvisoryBOX27 hr
Jun 22, 1:41 PM EDTSevere Thunderstorm WatchSPC7 hr
Jun 22, 3:31 PM EDTSevere Thunderstorm WarningBOX59 min
Jun 22, 4:01 PM EDTAreal Flood AdvisoryBOX3 hr
Jun 22, 4:02 PM EDTSevere Thunderstorm WarningBOX35 min
Jun 22, 4:36 PM EDTFlash Flood WarningBOX3 hr
Jun 25, 6:39 AM EDTSevere Thunderstorm WatchSPC7 hr
Jun 25, 7:44 AM EDTAreal Flood AdvisoryBOX3 hr
Jul 1, 1:35 PM EDTSevere Thunderstorm WatchSPC6 hr
Jul 1, 2:51 PM EDTSevere Thunderstorm WarningBOX38 min
Jul 1, 3:06 PM EDTSevere Thunderstorm WarningBOX39 min
Jul 17, 3:56 AM EDTHeat AdvisoryBOX15 hr
Jul 18, 12:20 PM EDTSevere Thunderstorm WatchSPC9 hr
Jul 18, 12:41 PM EDTHeat AdvisoryBOX6 hr
Jul 18, 2:21 PM EDTSevere Thunderstorm WarningBOX54 min
Jul 18, 2:24 PM EDTFlash Flood WarningBOX3 hr
Jul 18, 2:29 PM EDTSevere Thunderstorm WarningBOX61 min
Jul 23, 9:31 AM EDTAreal Flood AdvisoryBOX89 min
Jul 24, 1:38 PM EDTSevere Thunderstorm WatchSPC6 hr
Jul 26, 11:26 AM EDTFlash Flood WatchBOX11 hr
Jul 26, 3:57 PM EDTSevere Thunderstorm WatchSPC6 hr
Jul 26, 7:06 PM EDTSevere Thunderstorm WarningBOX69 min
Jul 28, 3:54 AM EDTFlash Flood WatchBOX24 hr
Jul 28, 12:59 PM EDTAreal Flood AdvisoryBOX6 hr
Jul 28, 1:48 PM EDTFlash Flood WarningBOX117 min
Jul 28, 3:00 PM EDTAreal Flood AdvisoryBOX3 hr
Jul 28, 3:24 PM EDTAreal Flood AdvisoryBOX3 hr
Jul 28, 3:33 PM EDTFlash Flood WarningBOX3 hr
Jul 28, 3:44 PM EDTFlash Flood WarningBOX2 hr
Jul 29, 4:57 PM EDTAreal Flood AdvisoryBOX2 hr
Aug 5, 4:03 AM EDTFlash Flood WatchBOX19 hr
Aug 5, 4:20 PM EDTSevere Thunderstorm WarningBOX40 min
Aug 5, 4:58 PM EDTSevere Thunderstorm WarningBOX47 min
Aug 5, 5:05 PM EDTSevere Thunderstorm WarningBOX40 min
Aug 5, 5:13 PM EDTAreal Flood AdvisoryBOX3 hr
Aug 5, 5:46 PM EDTSevere Thunderstorm WarningBOX29 min
Aug 5, 5:57 PM EDTAreal Flood AdvisoryBOX3 hr
Aug 5, 6:30 PM EDTSevere Thunderstorm WarningBOX18 min
Aug 5, 8:08 PM EDTSevere Thunderstorm WarningBOX41 min
Aug 5, 8:18 PM EDTAreal Flood AdvisoryBOX117 min
Aug 10, 11:52 AM EDTAreal Flood AdvisoryBOX6 hr
Aug 10, 3:31 PM EDTTornado WatchSPC5 hr
Aug 10, 4:00 PM EDTSevere Thunderstorm WarningBOX45 min
Aug 10, 4:22 PM EDTTornado WarningBOX38 min
Aug 10, 4:56 PM EDTFlash Flood WarningBOX2 hr
Aug 10, 4:57 PM EDTFlash Flood WarningBOX2 hr
Aug 10, 5:00 PM EDTTornado WarningBOX45 min
Aug 11, 1:13 PM EDTAreal Flood AdvisoryBOX50 min
Aug 12, 7:32 AM EDTAreal Flood AdvisoryBOX3 hr
Aug 15, 3:48 AM EDTAreal Flood AdvisoryBOX3 hr
Aug 15, 5:16 AM EDTSevere Thunderstorm WarningBOX44 min
Aug 15, 5:28 AM EDTAreal Flood AdvisoryBOX3 hr
Aug 15, 5:59 PM EDTFlash Flood WarningBOX68 min
Aug 17, 9:06 PM EDTSevere Thunderstorm WarningBOX39 min
Sep 8, 11:18 AM EDTTornado WatchSPC10 hr
Sep 8, 2:02 PM EDTSevere Thunderstorm WarningBOX43 min
Sep 8, 4:47 PM EDTSevere Thunderstorm WatchSPC6 hr
Sep 8, 5:56 PM EDTSevere Thunderstorm WarningBOX64 min
Sep 8, 6:31 PM EDTSevere Thunderstorm WarningBOX59 min
Sep 8, 6:50 PM EDTSevere Thunderstorm WarningBOX25 min
Sep 8, 7:15 PM EDTSevere Thunderstorm WarningBOX30 min
Sep 8, 7:30 PM EDTSevere Thunderstorm WarningBOX60 min
Sep 17, 3:47 PM EDTHigh Wind WatchBOX13 hr
Sep 18, 4:37 AM EDTWind AdvisoryBOX23 hr
Sep 18, 7:31 PM EDTHigh Wind WarningBOX10 hr
Sep 18, 7:54 PM EDTSevere Thunderstorm WatchSPC6 hr
Sep 18, 8:18 PM EDTSevere Thunderstorm WarningBOX57 min
Sep 18, 8:52 PM EDTAreal Flood AdvisoryBOX5 hr
Sep 18, 9:16 PM EDTSevere Thunderstorm WarningBOX59 min
Sep 18, 10:16 PM EDTSevere Thunderstorm WarningBOX59 min
Oct 4, 6:01 PM EDTAreal Flood AdvisoryBOX119 min
Oct 4, 7:46 PM EDTAreal Flood AdvisoryBOX59 min
Oct 4, 11:17 PM EDTDense Fog AdvisoryBOX10 hr
Oct 11, 4:17 AM EDTFreeze WatchBOX23 hr
Oct 12, 3:37 AM EDTFreeze WarningBOX30 hr
Oct 27, 4:50 PM EDTHigh Wind WatchBOX21 hr
Oct 27, 4:51 PM EDTFlood WatchBOX56 hr
Oct 28, 4:38 AM EDTHigh Wind WarningBOX44 hr
Oct 30, 12:33 AM EDTWind AdvisoryBOX13 hr
Nov 6, 4:37 PM ESTWind AdvisoryBOX58 hr
Nov 7, 3:30 AM ESTWinter Weather AdvisoryBOX28 hr
Dec 1, 4:50 AM ESTWinter Weather AdvisoryBOX31 hr
Dec 2, 9:32 AM ESTDense Fog AdvisoryBOX4 hr
Dec 16, 7:16 PM ESTFreezing Rain AdvisoryBOX14 hr
Dec 21, 4:30 AM ESTWind AdvisoryBOX11 hr
Dec 21, 11:49 AM ESTAreal Flood AdvisoryBOX3 hr
Dec 22, 4:18 AM ESTWind AdvisoryBOX12 hr
Dec 24, 3:50 AM ESTWinter Weather AdvisoryBOX25 hr
Dec 25, 5:03 AM ESTWinter Storm WatchBOX24 hr
Dec 26, 5:13 AM ESTWinter Weather AdvisoryBOX24 hr
Dec 28, 4:43 PM ESTWinter Weather AdvisoryBOX33 hr
Dec 29, 4:25 AM ESTWinter Storm WarningBOX21 hr
Dec 29, 4:32 PM ESTWind AdvisoryBOX34 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 archive20112013

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.