Alert archive / South Dakota / Jackson County

Weather alerts in Jackson County, South Dakota, 2013

178 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Jackson County and its neighbors

Each county as a circle sized by its count in 2013. Tap one for its archive.

Alerts
178
Warnings
43
Watches
32
Advisories
39
Busiest month
August39 alerts
Busiest day
May 27, 20138 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 1 tornado warnings covering Jackson County in 2013 had a tornado report inside them.

Jackson County, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings342138%2291%20 min
Flash flood warnings10100%0

Each office's whole area, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Rapid City, SD: tornado warnings10190%333%4 min
NWS Rapid City, SD: severe thunderstorm warnings50236328%67390%23 min
NWS Rapid City, SD: flash flood warnings24579%1493%46 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 7, 2:29 PM MSTWind AdvisoryUNR23 hr
Jan 10, 5:34 AM MSTWind AdvisoryUNR4 hr
Jan 10, 2:56 PM MSTWinter Storm WatchUNR14 hr
Jan 10, 2:56 PM MSTWinter Storm WarningUNR37 hr
Jan 11, 4:32 AM MSTWinter Weather AdvisoryUNR30 hr
Jan 28, 9:33 AM MSTWinter Weather AdvisoryUNR17 hr
Jan 30, 2:43 AM MSTWind Chill AdvisoryUNR33 hr
Feb 7, 2:45 PM MSTWinter Storm WatchUNR38 hr
Feb 8, 10:34 AM MSTBlizzard WatchUNR18 hr
Feb 9, 4:30 AM MSTBlizzard WarningUNR42 hr
Feb 9, 4:30 AM MSTWinter Weather AdvisoryUNR42 hr
Feb 12, 2:32 PM MSTWind AdvisoryUNR49 hr
Feb 17, 2:35 PM MSTWind AdvisoryUNR23 hr
Feb 19, 2:54 AM MSTWinter Storm WatchUNR33 hr
Mar 3, 2:15 PM MSTWind AdvisoryUNR40 hr
Mar 8, 2:30 PM MSTWinter Weather AdvisoryUNR24 hr
Mar 16, 3:28 AM MDTHigh Wind WatchUNR24 hr
Mar 16, 5:42 PM MDTWinter Weather AdvisoryUNR4 hr
Mar 17, 3:10 AM MDTWind AdvisoryUNR33 hr
Apr 7, 2:46 AM MDTWinter Storm WatchUNR36 hr
Apr 8, 4:32 AM MDTWinter Storm WarningUNR70 hr
Apr 9, 5:46 PM MDTMesoscale DiscussionSPC5 hr
Apr 13, 3:14 PM MDTWind AdvisoryUNR29 hr
Apr 15, 3:40 AM MDTWinter Storm WatchUNR24 hr
Apr 16, 3:35 AM MDTWinter Storm WarningUNR35 hr
Apr 16, 3:35 AM MDTWinter Weather AdvisoryUNR47 hr
Apr 21, 3:51 AM MDTWinter Weather AdvisoryUNR35 hr
May 7, 12:50 PM MDTSpecial Weather StatementUNR40 min
May 7, 1:38 PM MDTSpecial Weather StatementUNR37 min
May 7, 2:18 PM MDTSpecial Weather StatementUNR42 min
May 14, 2:46 AM MDTWind AdvisoryUNR12 hr
May 16, 5:52 PM MDTSevere Thunderstorm WarningUNR53 min
May 17, 2:23 PM MDTMesoscale DiscussionSPC97 min
May 17, 3:03 PM MDTSevere Thunderstorm WatchSPC9 hr
May 17, 5:32 PM MDTSevere Thunderstorm WarningUNR58 min
May 17, 6:28 PM MDTMesoscale DiscussionSPC92 min
May 17, 9:26 PM MDTMesoscale DiscussionSPC64 min
May 18, 2:31 PM MDTMesoscale DiscussionSPC59 min
May 18, 2:55 PM MDTSevere Thunderstorm WatchSPC8 hr
May 18, 5:38 PM MDTTornado WarningUNR52 min
May 18, 6:53 PM MDTSevere Thunderstorm WarningUNR52 min
May 18, 7:30 PM MDTAreal Flood AdvisoryUNR3 hr
May 18, 7:37 PM MDTSpecial Weather StatementUNR38 min
May 18, 7:43 PM MDTSevere Thunderstorm WarningUNR47 min
May 18, 9:14 PM MDTMesoscale DiscussionSPC61 min
May 25, 1:52 PM MDTTornado WatchSPC8 hr
May 25, 7:48 PM MDTMesoscale DiscussionSPC87 min
May 27, 11:36 AM MDTMesoscale DiscussionSPC54 min
May 27, 11:51 AM MDTSevere Thunderstorm WatchSPC10 hr
May 27, 3:52 PM MDTMesoscale DiscussionSPC83 min
May 27, 4:16 PM MDTSpecial Weather StatementUNR29 min
May 27, 4:21 PM MDTSpecial Weather StatementUNR24 min
May 27, 4:32 PM MDTSevere Thunderstorm WarningUNR28 min
May 27, 4:41 PM MDTSevere Thunderstorm WarningUNR34 min
May 27, 5:13 PM MDTSevere Thunderstorm WarningUNR32 min
May 27, 6:11 PM MDTMesoscale DiscussionSPC94 min
May 27, 6:19 PM MDTSevere Thunderstorm WarningUNR71 min
May 27, 7:18 PM MDTSevere Thunderstorm WarningUNR72 min
May 27, 8:11 PM MDTSevere Thunderstorm WarningUNR64 min
May 28, 6:29 PM MDTSevere Thunderstorm WarningUNR46 min
May 28, 6:52 PM MDTMesoscale DiscussionSPC113 min
May 28, 7:10 PM MDTSevere Thunderstorm WarningUNR35 min
May 31, 3:03 AM MDTWind AdvisoryUNR16 hr
Jun 11, 6:23 PM MDTMesoscale DiscussionSPC97 min
Jun 11, 6:42 PM MDTSevere Thunderstorm WatchSPC5 hr
Jun 11, 8:16 PM MDTMesoscale DiscussionSPC59 min
Jun 11, 9:48 PM MDTMesoscale DiscussionSPC87 min
Jun 16, 7:23 AM MDTSpecial Weather StatementUNR52 min
Jun 16, 8:44 AM MDTSevere Thunderstorm WarningUNR61 min
Jun 16, 9:47 AM MDTSevere Thunderstorm WarningUNR58 min
Jun 16, 10:11 AM MDTAreal Flood AdvisoryUNR6 hr
Jun 21, 8:09 AM MDTSevere Thunderstorm WatchSPC7 hr
Jun 21, 8:27 AM MDTSevere Thunderstorm WarningUNR78 min
Jun 21, 9:38 AM MDTSevere Thunderstorm WarningUNR67 min
Jun 21, 9:41 AM MDTSevere Thunderstorm WarningUNR79 min
Jun 21, 11:01 AM MDTMesoscale DiscussionSPC89 min
Jun 21, 5:31 PM MDTSevere Thunderstorm WatchSPC6 hr
Jun 21, 7:06 PM MDTSevere Thunderstorm WarningUNR39 min
Jun 22, 6:42 PM MDTSevere Thunderstorm WatchSPC6 hr
Jun 24, 5:44 PM MDTMesoscale DiscussionSPC91 min
Jul 4, 1:14 PM MDTSpecial Weather StatementUNR61 min
Jul 4, 1:51 PM MDTSpecial Weather StatementUNR54 min
Jul 4, 2:43 PM MDTSpecial Weather StatementUNR62 min
Jul 8, 1:51 PM MDTMesoscale DiscussionSPC54 min
Jul 8, 3:00 PM MDTSevere Thunderstorm WatchSPC7 hr
Jul 8, 4:01 PM MDTSevere Thunderstorm WatchSPC8 hr
Jul 8, 6:36 PM MDTMesoscale DiscussionSPC84 min
Jul 8, 9:03 PM MDTMesoscale DiscussionSPC57 min
Jul 10, 4:49 PM MDTMesoscale DiscussionSPC86 min
Jul 18, 2:27 PM MDTMesoscale DiscussionSPC93 min
Jul 19, 10:36 PM MDTMesoscale DiscussionSPC114 min
Jul 20, 3:49 PM MDTSevere Thunderstorm WarningUNR71 min
Jul 20, 4:03 PM MDTSevere Thunderstorm WatchSPC6 hr
Jul 20, 6:54 PM MDTSevere Thunderstorm WarningUNR66 min
Jul 20, 7:08 PM MDTSevere Thunderstorm WarningUNR67 min
Jul 20, 7:23 PM MDTMesoscale DiscussionSPC97 min
Jul 21, 4:27 PM MDTMesoscale DiscussionSPC63 min
Jul 23, 10:12 PM MDTSevere Thunderstorm WarningUNR63 min
Jul 24, 2:53 AM MDTSevere Thunderstorm WarningUNR22 min
Jul 24, 3:15 AM MDTSevere Thunderstorm WarningUNR45 min
Jul 24, 12:18 PM MDTMesoscale DiscussionSPC87 min
Jul 24, 6:43 PM MDTMesoscale DiscussionSPC92 min
Jul 30, 1:00 PM MDTMesoscale DiscussionSPC2 hr
Jul 30, 1:27 PM MDTSevere Thunderstorm WatchSPC9 hr
Jul 30, 3:07 PM MDTSevere Thunderstorm WarningUNR53 min
Jul 30, 3:30 PM MDTSevere Thunderstorm WarningUNR60 min
Jul 30, 3:54 PM MDTSevere Thunderstorm WarningUNR66 min
Jul 30, 4:46 PM MDTSpecial Weather StatementUNR44 min
Jul 30, 4:55 PM MDTMesoscale DiscussionSPC2 hr
Jul 30, 7:17 PM MDTMesoscale DiscussionSPC88 min
Aug 1, 11:53 AM MDTMesoscale DiscussionSPC2 hr
Aug 1, 12:22 PM MDTTornado WatchSPC9 hr
Aug 1, 2:25 PM MDTMesoscale DiscussionSPC95 min
Aug 1, 2:42 PM MDTSpecial Weather StatementUNR33 min
Aug 3, 4:23 AM MDTMesoscale DiscussionSPC97 min
Aug 3, 4:46 AM MDTSevere Thunderstorm WatchSPC5 hr
Aug 5, 1:36 AM MDTSevere Thunderstorm WarningUNR54 min
Aug 5, 2:04 AM MDTMesoscale DiscussionSPC56 min
Aug 5, 2:14 AM MDTSevere Thunderstorm WatchSPC3 hr
Aug 5, 2:31 AM MDTSevere Thunderstorm WarningUNR59 min
Aug 5, 5:14 AM MDTMesoscale DiscussionSPC91 min
Aug 5, 6:52 PM MDTMesoscale DiscussionSPC53 min
Aug 5, 6:56 PM MDTSevere Thunderstorm WatchSPC5 hr
Aug 5, 10:21 PM MDTSevere Thunderstorm WarningUNR39 min
Aug 6, 12:53 AM MDTSpecial Weather StatementUNR52 min
Aug 6, 1:11 AM MDTSevere Thunderstorm WarningUNR64 min
Aug 6, 1:42 AM MDTMesoscale DiscussionSPC93 min
Aug 6, 1:48 AM MDTSevere Thunderstorm WatchSPC4 hr
Aug 6, 1:51 AM MDTSevere Thunderstorm WarningUNR54 min
Aug 7, 5:02 PM MDTSevere Thunderstorm WatchSPC6 hr
Aug 7, 6:49 PM MDTMesoscale DiscussionSPC86 min
Aug 7, 8:58 PM MDTSevere Thunderstorm WarningUNR62 min
Aug 7, 10:05 PM MDTMesoscale DiscussionSPC55 min
Aug 9, 7:24 PM MDTSpecial Weather StatementUNR51 min
Aug 9, 7:38 PM MDTFlash Flood WarningUNR6 hr
Aug 9, 8:07 PM MDTSpecial Weather StatementUNR23 min
Aug 10, 10:28 PM MDTMesoscale DiscussionSPC92 min
Aug 12, 1:26 PM MDTMesoscale DiscussionSPC3 hr
Aug 13, 2:01 AM MDTAreal Flood AdvisoryUNR10 hr
Aug 13, 12:36 PM MDTMesoscale DiscussionSPC2 hr
Aug 13, 1:17 PM MDTSevere Thunderstorm WatchSPC8 hr
Aug 13, 2:51 PM MDTMesoscale DiscussionSPC84 min
Aug 13, 4:45 PM MDTMesoscale DiscussionSPC90 min
Aug 13, 6:53 PM MDTSpecial Weather StatementUNR67 min
Aug 13, 9:57 PM MDTAreal Flood AdvisoryUNR6 hr
Aug 20, 1:47 PM MDTMesoscale DiscussionSPC2 hr
Aug 28, 2:39 AM MDTHeat AdvisoryUNR15 hr
Aug 30, 1:54 PM MDTSevere Thunderstorm WatchSPC8 hr
Aug 30, 5:12 PM MDTSevere Thunderstorm WarningUNR63 min
Sep 8, 3:52 PM MDTMesoscale DiscussionSPC2 hr
Sep 8, 6:47 PM MDTSevere Thunderstorm WatchSPC6 hr
Sep 8, 8:58 PM MDTMesoscale DiscussionSPC2 hr
Sep 22, 4:10 PM MDTMesoscale DiscussionSPC2 hr
Sep 30, 2:28 AM MDTWind AdvisoryUNR12 hr
Oct 2, 3:52 AM MDTWinter Storm WatchUNR58 hr
Oct 3, 3:57 AM MDTWinter Storm WarningUNR62 hr
Oct 3, 1:41 PM MDTBlizzard WarningUNR52 hr
Oct 9, 11:05 AM MDTFlood WatchUNR41 hr
Oct 9, 3:00 PM MDTHigh Wind WatchUNR24 hr
Oct 10, 2:42 PM MDTHigh Wind WarningUNR27 hr
Oct 13, 3:41 AM MDTFlood WatchUNR48 hr
Oct 13, 1:45 PM MDTWind AdvisoryUNR45 hr
Oct 14, 10:00 PM MDTAreal Flood AdvisoryUNR48 hr
Oct 27, 3:17 PM MDTWinter Weather AdvisoryUNR42 hr
Oct 29, 2:01 PM MDTWinter Weather AdvisoryUNR22 hr
Oct 31, 2:09 PM MDTWind AdvisoryUNR27 hr
Nov 4, 3:04 AM MSTWinter Weather AdvisoryUNR38 hr
Nov 7, 1:38 PM MSTWind AdvisoryUNR26 hr
Nov 16, 2:29 PM MSTWind AdvisoryUNR22 hr
Nov 20, 2:56 PM MSTWinter Weather AdvisoryUNR24 hr
Dec 2, 2:10 PM MSTWinter Weather AdvisoryUNR51 hr
Dec 4, 1:53 PM MSTWind Chill AdvisoryUNR4 days
Dec 8, 3:52 AM MSTWind Chill AdvisoryUNR31 hr
Dec 18, 4:10 AM MSTWinter Weather AdvisoryUNR39 hr
Dec 19, 12:31 PM MSTMesoscale DiscussionSPC4 hr
Dec 22, 2:54 AM MSTWind Chill AdvisoryUNR32 hr
Dec 23, 2:53 PM MSTWinter Weather AdvisoryUNR19 hr
Dec 27, 1:22 PM MSTWind AdvisoryUNR31 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.