Alert archive / Nebraska / Sioux County

Weather alerts in Sioux County, Nebraska, 2009

120 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Sioux County and its neighbors

Each county as a circle sized by its count in 2009. Tap one for its archive.

Alerts
120
Warnings
48
Watches
21
Advisories
11
Busiest month
July46 alerts
Busiest day
July 3, 20099 alerts

Over time

By month

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
Mar 21, 5:23 PM MDTMesoscale DiscussionSPC97 min
Mar 21, 6:26 PM MDTSevere Thunderstorm WarningCYS34 min
Apr 4, 4:57 AM MDTMesoscale DiscussionSPC4 hr
May 20, 3:55 PM MDTSevere Thunderstorm WarningCYS65 min
May 20, 4:21 PM MDTSevere Thunderstorm WarningCYS37 min
May 22, 6:29 PM MDTMesoscale DiscussionSPC2 hr
May 24, 6:31 PM MDTMesoscale DiscussionSPC119 min
Jun 1, 5:14 PM MDTFlash Flood WarningCYS4 hr
Jun 5, 2:48 PM MDTTornado WatchSPC7 hr
Jun 5, 5:37 PM MDTMesoscale DiscussionSPC83 min
Jun 5, 10:01 PM MDTSevere Thunderstorm WarningCYS59 min
Jun 5, 11:00 PM MDTSevere Thunderstorm WarningCYS60 min
Jun 9, 4:12 PM MDTSevere Thunderstorm WarningCYS48 min
Jun 9, 4:29 PM MDTSevere Thunderstorm WarningCYS24 min
Jun 10, 12:52 PM MDTTornado WarningCYS38 min
Jun 13, 1:56 PM MDTTornado WatchSPC9 hr
Jun 13, 6:30 PM MDTSevere Thunderstorm WarningCYS45 min
Jun 13, 6:42 PM MDTMesoscale DiscussionSPC63 min
Jun 14, 1:06 PM MDTMesoscale DiscussionSPC54 min
Jun 14, 1:50 PM MDTTornado WatchSPC7 hr
Jun 17, 8:27 PM MDTSevere Thunderstorm WarningCYS48 min
Jun 18, 5:35 PM MDTSevere Thunderstorm WarningCYS40 min
Jun 22, 9:56 PM MDTSevere Thunderstorm WarningCYS49 min
Jun 22, 10:24 PM MDTSevere Thunderstorm WarningCYS37 min
Jun 23, 12:07 AM MDTMesoscale DiscussionSPC53 min
Jun 23, 1:28 AM MDTAreal Flood AdvisoryCYS3 hr
Jun 23, 2:18 PM MDTMesoscale DiscussionSPC87 min
Jun 23, 2:51 PM MDTSevere Thunderstorm WatchSPC6 hr
Jun 23, 5:26 PM MDTSevere Thunderstorm WarningCYS64 min
Jun 25, 1:30 PM MDTSevere Thunderstorm WatchSPC7 hr
Jun 25, 4:22 PM MDTMesoscale DiscussionSPC53 min
Jun 25, 5:50 PM MDTMesoscale DiscussionSPC55 min
Jun 26, 2:23 PM MDTMesoscale DiscussionSPC67 min
Jun 26, 2:38 PM MDTSevere Thunderstorm WatchSPC5 hr
Jun 30, 5:40 PM MDTMesoscale DiscussionSPC65 min
Jun 30, 7:18 PM MDTSevere Thunderstorm WarningCYS42 min
Jul 1, 12:33 PM MDTMesoscale DiscussionSPC117 min
Jul 1, 4:29 PM MDTMesoscale DiscussionSPC61 min
Jul 1, 6:22 PM MDTSevere Thunderstorm WarningCYS53 min
Jul 1, 6:38 PM MDTSevere Thunderstorm WatchSPC6 hr
Jul 1, 7:07 PM MDTSevere Thunderstorm WarningCYS53 min
Jul 1, 8:01 PM MDTSevere Thunderstorm WarningCYS59 min
Jul 2, 2:17 PM MDTMesoscale DiscussionSPC88 min
Jul 2, 5:02 PM MDTSevere Thunderstorm WarningCYS58 min
Jul 2, 6:01 PM MDTSevere Thunderstorm WarningCYS59 min
Jul 2, 6:29 PM MDTMesoscale DiscussionSPC61 min
Jul 2, 6:49 PM MDTSevere Thunderstorm WarningCYS56 min
Jul 2, 7:29 PM MDTSevere Thunderstorm WarningCYS46 min
Jul 2, 8:14 PM MDTSevere Thunderstorm WarningCYS38 min
Jul 2, 8:17 PM MDTFlash Flood WarningCYS3 hr
Jul 2, 8:27 PM MDTFlash Flood WarningCYS3 hr
Jul 2, 9:08 PM MDTMesoscale DiscussionSPC97 min
Jul 3, 2:19 PM MDTMesoscale DiscussionSPC56 min
Jul 6, 2:07 PM MDTSevere Thunderstorm WatchSPC6 hr
Jul 6, 5:35 PM MDTMesoscale DiscussionSPC55 min
Jul 7, 7:17 PM MDTSevere Thunderstorm WarningCYS23 min
Jul 7, 9:05 PM MDTAreal Flood AdvisoryCYS4 hr
Jul 10, 5:20 PM MDTMesoscale DiscussionSPC85 min
Jul 10, 6:00 PM MDTSevere Thunderstorm WarningCYS43 min
Jul 10, 6:38 PM MDTSevere Thunderstorm WarningCYS41 min
Jul 10, 9:11 PM MDTSevere Thunderstorm WarningCYS49 min
Jul 11, 12:08 AM MDTSevere Thunderstorm WarningCYS49 min
Jul 11, 12:28 AM MDTMesoscale DiscussionSPC62 min
Jul 11, 3:35 PM MDTMesoscale DiscussionSPC55 min
Jul 11, 3:56 PM MDTSevere Thunderstorm WatchSPC9 hr
Jul 11, 7:34 PM MDTSevere Thunderstorm WarningCYS56 min
Jul 11, 8:09 PM MDTFlash Flood WarningCYS3 hr
Jul 11, 8:10 PM MDTSevere Thunderstorm WarningCYS65 min
Jul 11, 8:26 PM MDTSevere Thunderstorm WarningCYS64 min
Jul 12, 2:05 PM MDTMesoscale DiscussionSPC85 min
Jul 13, 1:45 PM MDTSevere Thunderstorm WatchSPC6 hr
Jul 13, 4:06 PM MDTSevere Thunderstorm WarningCYS54 min
Jul 13, 6:45 PM MDTSevere Thunderstorm WarningCYS41 min
Jul 16, 5:47 PM MDTSevere Thunderstorm WarningCYS43 min
Jul 17, 12:59 PM MDTTornado WatchSPC6 hr
Jul 19, 2:22 PM MDTMesoscale DiscussionSPC113 min
Jul 20, 2:07 PM MDTMesoscale DiscussionSPC53 min
Jul 20, 2:25 PM MDTSevere Thunderstorm WatchSPC6 hr
Jul 20, 5:01 PM MDTMesoscale DiscussionSPC89 min
Jul 27, 4:41 PM MDTSevere Thunderstorm WarningCYS35 min
Jul 27, 5:23 PM MDTSevere Thunderstorm WarningCYS52 min
Aug 3, 6:46 PM MDTMesoscale DiscussionSPC119 min
Aug 3, 7:37 PM MDTSevere Thunderstorm WarningCYS52 min
Aug 4, 2:54 PM MDTMesoscale DiscussionSPC96 min
Aug 4, 3:37 PM MDTSevere Thunderstorm WatchSPC7 hr
Aug 4, 5:19 PM MDTMesoscale DiscussionSPC56 min
Aug 4, 6:40 PM MDTMesoscale DiscussionSPC65 min
Aug 4, 9:07 PM MDTSevere Thunderstorm WarningCYS53 min
Aug 5, 3:51 PM MDTMesoscale DiscussionSPC84 min
Aug 6, 4:07 PM MDTTornado WatchSPC4 hr
Aug 7, 5:37 PM MDTMesoscale DiscussionSPC113 min
Aug 8, 2:18 AM MDTMesoscale DiscussionSPC117 min
Aug 8, 3:34 PM MDTMesoscale DiscussionSPC86 min
Aug 8, 7:29 PM MDTSevere Thunderstorm WatchSPC7 hr
Aug 8, 9:41 PM MDTMesoscale DiscussionSPC94 min
Aug 15, 1:07 PM MDTMesoscale DiscussionSPC53 min
Aug 15, 2:08 PM MDTSevere Thunderstorm WatchSPC8 hr
Aug 15, 3:28 PM MDTSevere Thunderstorm WarningCYS50 min
Aug 15, 4:13 PM MDTSevere Thunderstorm WarningCYS62 min
Aug 18, 2:35 PM MDTMesoscale DiscussionSPC115 min
Oct 9, 4:18 AM MDTWinter Storm WatchCYS10 hr
Oct 9, 2:27 PM MDTWinter Weather AdvisoryCYS19 hr
Oct 10, 2:26 PM MDTWinter Weather AdvisoryCYS28 hr
Oct 26, 4:30 PM MDTWinter Storm WatchCYS36 hr
Oct 27, 5:19 AM MDTWinter Storm WarningCYS66 hr
Oct 28, 12:13 PM MDTMesoscale DiscussionSPC6 hr
Oct 28, 9:56 PM MDTMesoscale DiscussionSPC4 hr
Oct 29, 9:30 PM MDTWinter Weather AdvisoryCYS21 hr
Dec 7, 2:04 AM MSTWinter Storm WatchCYS12 hr
Dec 7, 1:45 PM MSTWinter Weather AdvisoryCYS23 hr
Dec 8, 2:49 PM MSTWind Chill AdvisoryCYS20 hr
Dec 9, 2:44 PM MSTWind Chill AdvisoryCYS18 hr
Dec 21, 5:07 AM MSTWinter Storm WatchCYS23 hr
Dec 22, 4:22 AM MSTWinter Storm WarningCYS31 hr
Dec 22, 4:22 AM MSTWinter Weather AdvisoryCYS46 hr
Dec 24, 1:34 PM MSTWind Chill AdvisoryCYS15 hr
Dec 24, 1:34 PM MSTWinter Storm WatchCYS15 hr
Dec 24, 1:34 PM MSTWinter Weather AdvisoryCYS51 hr
Dec 25, 4:22 AM MSTWinter Storm WarningCYS37 hr
Dec 25, 1:13 PM MSTBlizzard WarningCYS16 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 archive20082010

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.