Alert archive / Nebraska / Dixon County

Weather alerts in Dixon County, Nebraska, 2015

88 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Dixon County and its neighbors

Each county as a circle sized by its count in 2015. Tap one for its archive.

Alerts
88
Warnings
17
Watches
15
Advisories
27
Busiest month
January15 alerts
Busiest day
May 10, 20155 alerts

Over time

By month

Warning verification

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

Dixon County, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings6517%580%24 min
Flash flood warnings2150%0

Each office's whole area, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Sioux Falls, SD: tornado warnings301357%2568%14 min
NWS Sioux Falls, SD: severe thunderstorm warnings17512330%22086%20 min
NWS Sioux Falls, SD: flash flood warnings191332%1995%37 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
Jan 2, 3:25 PM CSTWind Chill AdvisoryFSD69 hr
Jan 3, 4:19 AM CSTWinter Weather AdvisoryFSD23 hr
Jan 3, 6:28 PM CSTBlizzard WarningFSD7 hr
Jan 3, 6:28 PM CSTWinter Weather AdvisoryFSD9 hr
Jan 5, 4:19 AM CSTWinter Weather AdvisoryFSD15 hr
Jan 5, 5:16 PM CSTWind Chill AdvisoryFSD19 hr
Jan 6, 4:25 AM CSTWind Chill AdvisoryFSD47 hr
Jan 7, 4:36 AM CSTBlizzard WatchFSD23 hr
Jan 7, 3:26 PM CSTWinter Weather AdvisoryFSD37 hr
Jan 8, 3:54 AM CSTWind Chill AdvisoryFSD30 hr
Jan 12, 3:34 AM CSTWind Chill AdvisoryFSD31 hr
Jan 16, 2:58 PM CSTWind AdvisoryFSD25 hr
Jan 28, 12:36 PM CSTWind AdvisoryFSD20 hr
Jan 31, 3:50 AM CSTWinter Weather AdvisoryFSD35 hr
Jan 31, 9:53 AM CSTWinter Storm WarningFSD32 hr
Feb 17, 2:54 AM CSTWind Chill AdvisoryFSD33 hr
Feb 25, 3:11 PM CSTWind Chill AdvisoryFSD21 hr
Mar 28, 3:06 PM CDTWind AdvisoryFSD28 hr
Apr 1, 3:50 PM CDTMesoscale DiscussionSPC115 min
Apr 1, 5:57 PM CDTSevere Thunderstorm WatchSPC7 hr
Apr 12, 5:42 PM CDTMesoscale DiscussionSPC63 min
Apr 20, 3:31 AM CDTWind AdvisoryFSD15 hr
Apr 22, 3:39 AM CDTFreeze WarningFSD28 hr
May 3, 3:57 PM CDTMesoscale DiscussionSPC2 hr
May 10, 10:24 AM CDTMesoscale DiscussionSPC3 hr
May 10, 10:46 AM CDTTornado WatchSPC8 hr
May 10, 1:40 PM CDTSevere Thunderstorm WarningFSD35 min
May 10, 2:02 PM CDTSevere Thunderstorm WarningFSD28 min
May 10, 2:43 PM CDTMesoscale DiscussionSPC92 min
May 16, 3:34 PM CDTMesoscale DiscussionSPC86 min
May 18, 2:43 PM CDTFrost AdvisoryFSD17 hr
May 25, 5:08 PM CDTMesoscale DiscussionSPC67 min
Jun 3, 3:01 AM CDTMesoscale DiscussionSPC89 min
Jun 6, 2:32 PM CDTMesoscale DiscussionSPC88 min
Jun 6, 3:12 PM CDTFlash Flood WatchFSD9 hr
Jun 6, 3:40 PM CDTTornado WatchSPC5 hr
Jun 6, 6:34 PM CDTMesoscale DiscussionSPC116 min
Jun 6, 8:11 PM CDTMesoscale DiscussionSPC64 min
Jun 6, 8:45 PM CDTTornado WatchSPC4 hr
Jun 6, 10:11 PM CDTFlash Flood WarningFSD3 hr
Jun 6, 11:00 PM CDTMesoscale DiscussionSPC2 hr
Jun 22, 5:34 AM CDTHigh Wind WarningFSD2 hr
Jul 3, 6:19 AM CDTDense Fog AdvisoryFSD3 hr
Jul 11, 4:00 AM CDTHeat AdvisoryFSD39 hr
Jul 16, 6:44 PM CDTMesoscale DiscussionSPC3 hr
Jul 17, 5:43 PM CDTMesoscale DiscussionSPC92 min
Jul 17, 8:55 PM CDTSevere Thunderstorm WatchSPC5 hr
Jul 17, 8:57 PM CDTMesoscale DiscussionSPC3 hr
Jul 17, 10:23 PM CDTSevere Thunderstorm WarningFSD52 min
Jul 17, 10:53 PM CDTSevere Thunderstorm WarningFSD52 min
Jul 17, 11:26 PM CDTMesoscale DiscussionSPC2 hr
Jul 19, 10:21 PM CDTMesoscale DiscussionSPC84 min
Jul 23, 3:33 AM CDTHeat AdvisoryFSD39 hr
Jul 28, 3:37 AM CDTMesoscale DiscussionSPC2 hr
Aug 9, 1:05 PM CDTMesoscale DiscussionSPC115 min
Aug 9, 1:42 PM CDTSevere Thunderstorm WatchSPC9 hr
Aug 9, 4:03 PM CDTMesoscale DiscussionSPC117 min
Aug 9, 7:15 PM CDTMesoscale DiscussionSPC2 hr
Aug 9, 8:33 PM CDTSevere Thunderstorm WarningFSD42 min
Aug 9, 9:08 PM CDTSevere Thunderstorm WarningFSD67 min
Aug 9, 9:33 PM CDTMesoscale DiscussionSPC27 min
Aug 16, 10:56 AM CDTFlash Flood WatchFSD9 hr
Aug 16, 4:01 PM CDTMesoscale DiscussionSPC119 min
Aug 22, 2:13 PM CDTMesoscale DiscussionSPC62 min
Aug 22, 2:35 PM CDTTornado WatchSPC7 hr
Sep 19, 4:46 AM CDTDense Fog AdvisoryFSD6 hr
Sep 22, 1:06 PM CDTMesoscale DiscussionSPC84 min
Sep 22, 10:23 PM CDTMesoscale DiscussionSPC2 hr
Sep 23, 1:45 AM CDTFlash Flood WarningFSD3 hr
Sep 23, 4:14 AM CDTFlash Flood WatchFSD27 hr
Oct 11, 4:20 PM CDTWind AdvisoryFSD26 hr
Oct 15, 3:34 AM CDTFreeze WarningFSD29 hr
Nov 10, 3:43 AM CSTHigh Wind WatchFSD11 hr
Nov 10, 3:02 PM CSTHigh Wind WarningFSD39 hr
Nov 10, 3:02 PM CSTWind AdvisoryFSD51 hr
Nov 18, 3:52 AM CSTWind AdvisoryFSD38 hr
Nov 18, 3:10 PM CSTWinter Storm WatchFSD37 hr
Nov 19, 3:44 PM CSTWinter Storm WarningFSD30 hr
Nov 20, 9:00 AM CSTMesoscale DiscussionSPC5 hr
Nov 20, 1:51 PM CSTMesoscale DiscussionSPC5 hr
Nov 25, 2:59 PM CSTWinter Weather AdvisoryFSD26 hr
Nov 28, 2:41 PM CSTWinter Storm WatchFSD25 hr
Nov 29, 3:26 PM CSTWinter Storm WarningFSD42 hr
Nov 30, 12:03 PM CSTMesoscale DiscussionSPC6 hr
Dec 24, 3:47 PM CSTWinter Weather AdvisoryFSD47 hr
Dec 26, 2:51 PM CSTWinter Storm WatchFSD37 hr
Dec 27, 3:19 PM CSTWinter Storm WarningFSD46 hr
Dec 28, 3:39 AM CSTWinter Weather AdvisoryFSD31 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 archive20142016

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.