Alert archive / South Dakota / Bennett County

Weather alerts in Bennett County, South Dakota, 2016

139 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Bennett County and its neighbors

Each county as a circle sized by its count in 2016. Tap one for its archive.

Alerts
139
Warnings
40
Watches
23
Advisories
19
Busiest month
July43 alerts
Busiest day
July 31, 201610 alerts

Over time

By month

Warning verification

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

1 of 2 tornado warnings covering Bennett County in 2016 had a tornado report inside them.

Bennett County, 2016

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings2150%0
Severe thunderstorm warnings281932%12100%17 min
Flash flood warnings00

Each office's whole area, 2016

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Rapid City, SD: tornado warnings11373%1050%4 min
NWS Rapid City, SD: severe thunderstorm warnings39127929%55387%24 min
NWS Rapid City, SD: flash flood warnings6517%7100%88 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, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
Jan 19, 6:33 PM MSTDense Fog AdvisoryUNR8 hr
Jan 24, 2:31 AM MSTWinter Weather AdvisoryUNR35 hr
Feb 5, 2:48 AM MSTHigh Wind WatchUNR23 hr
Feb 5, 1:52 PM MSTHigh Wind WarningUNR54 hr
Feb 17, 2:02 PM MSTHigh Wind WarningUNR49 hr
Feb 23, 7:38 PM MSTWind AdvisoryUNR21 hr
Mar 21, 3:23 PM MDTWinter Weather AdvisoryUNR51 hr
Mar 29, 2:43 PM MDTWinter Weather AdvisoryUNR19 hr
Mar 30, 2:31 PM MDTWind AdvisoryUNR29 hr
Apr 4, 2:52 AM MDTHigh Wind WatchUNR25 hr
Apr 5, 3:40 AM MDTHigh Wind WarningUNR26 hr
Apr 6, 2:59 AM MDTWind AdvisoryUNR16 hr
Apr 6, 2:45 PM MDTWind AdvisoryUNR28 hr
Apr 14, 2:42 PM MDTWind AdvisoryUNR15 hr
Apr 16, 2:30 PM MDTFlood WatchUNR37 hr
Apr 29, 3:04 PM MDTWinter Weather AdvisoryUNR17 hr
May 6, 5:26 PM MDTSpecial Weather StatementLBF49 min
May 6, 6:56 PM MDTSpecial Weather StatementLBF49 min
May 13, 2:46 AM MDTFreeze WarningUNR29 hr
May 14, 2:40 PM MDTFrost AdvisoryUNR12 hr
May 22, 2:20 PM MDTTornado WatchSPC7 hr
May 22, 5:35 PM MDTMesoscale DiscussionSPC115 min
May 22, 8:28 PM MDTSevere Thunderstorm WarningUNR62 min
May 22, 8:59 PM MDTSevere Thunderstorm WatchSPC5 hr
May 24, 6:25 PM MDTSevere Thunderstorm WarningUNR54 min
May 24, 8:02 PM MDTMesoscale DiscussionSPC58 min
May 24, 8:30 PM MDTSpecial Weather StatementLBF30 min
May 30, 1:16 PM MDTMesoscale DiscussionSPC59 min
May 30, 1:48 PM MDTSevere Thunderstorm WatchSPC7 hr
Jun 9, 4:06 PM MDTMesoscale DiscussionSPC84 min
Jun 13, 1:10 AM MDTSpecial Weather StatementLBF65 min
Jun 13, 12:45 PM MDTSevere Thunderstorm WatchSPC9 hr
Jun 13, 6:00 PM MDTMesoscale DiscussionSPC90 min
Jun 13, 6:06 PM MDTSevere Thunderstorm WarningUNR39 min
Jun 13, 6:46 PM MDTSevere Thunderstorm WarningUNR59 min
Jun 13, 7:02 PM MDTTornado WarningUNR28 min
Jun 13, 7:30 PM MDTMesoscale DiscussionSPC60 min
Jun 13, 7:38 PM MDTSevere Thunderstorm WarningUNR82 min
Jun 14, 2:31 PM MDTMesoscale DiscussionSPC119 min
Jun 24, 7:17 PM MDTSevere Thunderstorm WarningUNR43 min
Jun 28, 1:37 PM MDTSevere Thunderstorm WatchSPC7 hr
Jun 29, 2:43 PM MDTSevere Thunderstorm WatchSPC5 hr
Jun 29, 6:32 PM MDTMesoscale DiscussionSPC118 min
Jun 29, 6:44 PM MDTSevere Thunderstorm WarningUNR61 min
Jun 29, 7:38 PM MDTSevere Thunderstorm WarningUNR67 min
Jul 3, 7:21 PM MDTSevere Thunderstorm WarningUNR39 min
Jul 5, 8:40 PM MDTSpecial Weather StatementUNR35 min
Jul 5, 9:00 PM MDTSevere Thunderstorm WarningUNR46 min
Jul 6, 1:51 PM MDTMesoscale DiscussionSPC84 min
Jul 6, 2:21 PM MDTTornado WatchSPC7 hr
Jul 6, 3:24 PM MDTSevere Thunderstorm WarningUNR21 min
Jul 6, 5:48 PM MDTMesoscale DiscussionSPC57 min
Jul 10, 2:06 PM MDTMesoscale DiscussionSPC84 min
Jul 10, 7:12 PM MDTSpecial Weather StatementUNR33 min
Jul 10, 9:13 PM MDTSpecial Weather StatementLBF47 min
Jul 10, 9:14 PM MDTSpecial Weather StatementUNR31 min
Jul 10, 9:51 PM MDTSpecial Weather StatementUNR24 min
Jul 15, 12:51 AM MDTSpecial Weather StatementUNR39 min
Jul 15, 2:10 AM MDTSpecial Weather StatementUNR65 min
Jul 15, 2:11 AM MDTMesoscale DiscussionSPC3 hr
Jul 15, 3:08 AM MDTSpecial Weather StatementLBF52 min
Jul 16, 2:33 PM MDTSevere Thunderstorm WatchSPC6 hr
Jul 16, 6:06 PM MDTSevere Thunderstorm WarningUNR39 min
Jul 16, 6:07 PM MDTMesoscale DiscussionSPC83 min
Jul 16, 6:25 PM MDTTornado WarningUNR23 min
Jul 16, 6:46 PM MDTSevere Thunderstorm WarningUNR19 min
Jul 19, 3:24 AM MDTExcessive Heat WarningUNR4 days
Jul 26, 4:32 PM MDTMesoscale DiscussionSPC118 min
Jul 26, 5:05 PM MDTSevere Thunderstorm WatchSPC6 hr
Jul 26, 6:47 PM MDTSpecial Weather StatementLBF43 min
Jul 26, 7:34 PM MDTSevere Thunderstorm WarningUNR56 min
Jul 27, 2:11 PM MDTMesoscale DiscussionSPC3 hr
Jul 29, 9:49 PM MDTSpecial Weather StatementUNR26 min
Jul 29, 10:13 PM MDTSpecial Weather StatementUNR62 min
Jul 29, 10:31 PM MDTSpecial Weather StatementUNR29 min
Jul 30, 2:32 PM MDTMesoscale DiscussionSPC2 hr
Jul 30, 5:02 PM MDTSpecial Weather StatementUNR43 min
Jul 30, 5:44 PM MDTSevere Thunderstorm WarningUNR76 min
Jul 30, 6:57 PM MDTSevere Thunderstorm WarningUNR63 min
Jul 30, 8:26 PM MDTSevere Thunderstorm WarningUNR94 min
Jul 30, 8:32 PM MDTSevere Thunderstorm WatchSPC7 hr
Jul 30, 9:57 PM MDTSevere Thunderstorm WarningUNR78 min
Jul 30, 10:03 PM MDTMesoscale DiscussionSPC117 min
Jul 30, 11:07 PM MDTSevere Thunderstorm WarningUNR53 min
Jul 31, 4:18 AM MDTSpecial Weather StatementUNR27 min
Jul 31, 4:51 AM MDTSpecial Weather StatementUNR24 min
Jul 31, 2:48 PM MDTSevere Thunderstorm WatchSPC7 hr
Jul 31, 4:42 PM MDTMesoscale DiscussionSPC2 hr
Jul 31, 7:46 PM MDTMesoscale DiscussionSPC89 min
Aug 2, 7:58 PM MDTSpecial Weather StatementLBF32 min
Aug 3, 5:40 PM MDTMesoscale DiscussionSPC2 hr
Aug 3, 6:49 PM MDTSpecial Weather StatementLBF41 min
Aug 8, 6:56 PM MDTMesoscale DiscussionSPC94 min
Aug 8, 7:24 PM MDTSevere Thunderstorm WarningUNR46 min
Aug 8, 9:05 PM MDTSpecial Weather StatementUNR55 min
Aug 9, 4:16 PM MDTSevere Thunderstorm WatchSPC7 hr
Aug 10, 2:49 PM MDTMesoscale DiscussionSPC56 min
Aug 10, 4:18 PM MDTMesoscale DiscussionSPC57 min
Aug 10, 6:17 PM MDTSevere Thunderstorm WarningUNR58 min
Aug 10, 6:41 PM MDTSpecial Weather StatementLBF49 min
Aug 10, 6:43 PM MDTSevere Thunderstorm WarningUNR47 min
Aug 11, 4:56 PM MDTMesoscale DiscussionSPC94 min
Aug 11, 5:29 PM MDTSevere Thunderstorm WatchSPC7 hr
Aug 11, 6:41 PM MDTSevere Thunderstorm WarningUNR49 min
Aug 14, 5:15 PM MDTSevere Thunderstorm WatchSPC7 hr
Aug 14, 8:04 PM MDTMesoscale DiscussionSPC56 min
Sep 2, 2:57 AM MDTWind AdvisoryUNR15 hr
Sep 4, 1:46 PM MDTMesoscale DiscussionSPC119 min
Sep 4, 2:24 PM MDTSevere Thunderstorm WatchSPC7 hr
Sep 4, 3:22 PM MDTSevere Thunderstorm WarningUNR53 min
Sep 4, 5:07 PM MDTMesoscale DiscussionSPC113 min
Sep 4, 5:40 PM MDTSevere Thunderstorm WarningUNR65 min
Sep 4, 5:50 PM MDTSpecial Weather StatementLBF40 min
Sep 4, 6:31 PM MDTSevere Thunderstorm WarningUNR74 min
Sep 4, 7:57 PM MDTMesoscale DiscussionSPC93 min
Sep 23, 1:39 PM MDTWind AdvisoryUNR50 hr
Sep 23, 2:21 PM MDTSevere Thunderstorm WatchSPC8 hr
Sep 23, 8:51 PM MDTMesoscale DiscussionSPC54 min
Sep 25, 1:44 PM MDTFrost AdvisoryUNR17 hr
Oct 3, 12:46 PM MDTMesoscale DiscussionSPC59 min
Oct 3, 1:04 PM MDTSevere Thunderstorm WatchSPC8 hr
Oct 3, 4:54 PM MDTMesoscale DiscussionSPC2 hr
Oct 3, 4:59 PM MDTSevere Thunderstorm WarningUNR46 min
Oct 3, 5:34 PM MDTSevere Thunderstorm WarningUNR43 min
Oct 6, 2:54 PM MDTFreeze WarningUNR18 hr
Oct 16, 2:08 PM MDTWind AdvisoryUNR28 hr
Oct 31, 2:57 AM MDTWind AdvisoryUNR15 hr
Nov 15, 2:01 PM MSTWinter Storm WatchUNR37 hr
Nov 16, 2:45 PM MSTWinter Storm WarningUNR42 hr
Nov 28, 2:14 AM MSTWinter Weather AdvisoryUNR57 hr
Dec 7, 2:41 PM MSTWind Chill AdvisoryUNR20 hr
Dec 13, 2:02 PM MSTWinter Storm WatchUNR47 hr
Dec 15, 2:49 AM MSTWinter Storm WarningUNR47 hr
Dec 16, 9:07 AM MSTMesoscale DiscussionSPC6 hr
Dec 17, 1:42 AM MSTWind Chill WarningUNR33 hr
Dec 20, 2:38 PM MSTWind AdvisoryUNR23 hr
Dec 21, 1:54 PM MSTBlizzard WatchUNR62 hr
Dec 23, 1:57 PM MSTWinter Storm WarningUNR67 hr
Dec 25, 11:56 AM MSTMesoscale DiscussionSPC5 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 archive20152017

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.