Alert archive / Nebraska / York County

Weather alerts in York County, Nebraska, 2013

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

York County and its neighbors

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

Alerts
145
Warnings
26
Watches
23
Advisories
41
Busiest month
May48 alerts
Busiest day
May 29, 201318 alerts

Over time

By month

Warning verification

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

7 of 9 tornado warnings covering York County in 2013 had a tornado report inside them; 6 of 6 tornado reports fell inside a warning, on average 17 minutes after it went out.

York County, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings9722%6100%17 min
Severe thunderstorm warnings12467%250%42 min
Flash flood warnings00

Each office's whole area, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Hastings, NE: tornado warnings361169%2065%12 min
NWS Hastings, NE: severe thunderstorm warnings26211755%27677%19 min
NWS Hastings, NE: flash flood warnings2150%1100%56 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 7, 10:30 PM CSTDense Fog AdvisoryGID10 hr
Jan 10, 2:43 PM CSTDense Fog AdvisoryGID21 hr
Jan 11, 3:57 AM CSTWind AdvisoryGID21 hr
Jan 27, 8:39 AM CSTDense Fog AdvisoryGID6 hr
Jan 27, 3:57 PM CSTDense Fog AdvisoryGID23 hr
Jan 28, 3:00 PM CSTDense Fog AdvisoryGID9 hr
Jan 29, 2:52 PM CSTWinter Weather AdvisoryGID15 hr
Jan 29, 8:29 PM CSTMesoscale DiscussionSPC4 hr
Feb 8, 2:16 AM CSTDense Fog AdvisoryGID10 hr
Feb 9, 3:24 PM CSTWind AdvisoryGID30 hr
Feb 13, 3:31 PM CSTWind AdvisoryGID26 hr
Feb 17, 9:45 PM CSTWind AdvisoryGID20 hr
Feb 18, 3:19 PM CSTWinter Storm WatchGID23 hr
Feb 19, 2:29 PM CSTWinter Storm WarningGID58 hr
Feb 21, 1:24 PM CSTMesoscale DiscussionSPC4 hr
Feb 23, 3:48 PM CSTDense Fog AdvisoryGID20 hr
Mar 4, 2:47 PM CSTWind AdvisoryGID24 hr
Mar 8, 3:23 PM CSTWinter Storm WatchGID13 hr
Mar 9, 4:10 AM CSTWinter Weather AdvisoryGID29 hr
Mar 10, 10:18 AM CDTBlizzard WarningGID5 hr
Mar 10, 10:18 AM CDTWinter Weather AdvisoryGID12 hr
Mar 21, 3:51 PM CDTWinter Storm WatchGID24 hr
Mar 22, 3:36 PM CDTWinter Weather AdvisoryGID32 hr
Apr 8, 6:00 PM CDTMesoscale DiscussionSPC90 min
Apr 9, 12:58 AM CDTWind AdvisoryGID12 hr
Apr 9, 10:42 AM CDTWinter Weather AdvisoryGID41 hr
Apr 9, 7:22 PM CDTMesoscale DiscussionSPC2 hr
Apr 9, 7:51 PM CDTSpecial Weather StatementGID39 min
Apr 9, 8:35 PM CDTSpecial Weather StatementGID40 min
Apr 17, 4:07 AM CDTWinter Weather AdvisoryGID34 hr
Apr 17, 4:23 AM CDTSpecial Weather StatementGID37 min
Apr 17, 4:42 PM CDTSpecial Weather StatementGID33 min
Apr 27, 1:31 AM CDTDense Fog AdvisoryGID8 hr
Apr 30, 10:41 PM CDTSevere Thunderstorm WarningGID34 min
Apr 30, 11:14 PM CDTSpecial Weather StatementGID31 min
May 1, 4:14 PM CDTFreeze WatchGID11 hr
May 2, 3:43 AM CDTFreeze WarningGID29 hr
May 6, 3:39 AM CDTDense Fog AdvisoryGID6 hr
May 11, 3:30 PM CDTFrost AdvisoryGID14 hr
May 13, 3:19 PM CDTFire Weather WatchGID12 hr
May 14, 3:34 AM CDTRed Flag WarningGID17 hr
May 14, 2:55 PM CDTMesoscale DiscussionSPC3 hr
May 14, 5:43 PM CDTSpecial Weather StatementGID32 min
May 14, 6:27 PM CDTSpecial Weather StatementGID33 min
May 18, 7:29 PM CDTTornado WatchSPC5 hr
May 18, 8:47 PM CDTSpecial Weather StatementGID43 min
May 18, 9:28 PM CDTSpecial Weather StatementGID32 min
May 19, 4:50 PM CDTSevere Thunderstorm WatchSPC5 hr
May 19, 7:00 PM CDTSpecial Weather StatementGID15 min
May 24, 11:50 PM CDTMesoscale DiscussionSPC55 min
May 25, 12:04 AM CDTSevere Thunderstorm WatchSPC4 hr
May 25, 9:43 PM CDTMesoscale DiscussionSPC92 min
May 26, 6:55 PM CDTMesoscale DiscussionSPC2 hr
May 26, 7:33 PM CDTTornado WatchSPC4 hr
May 26, 11:03 PM CDTSevere Thunderstorm WatchSPC6 hr
May 27, 5:51 AM CDTSevere Thunderstorm WarningGID24 min
May 27, 4:49 PM CDTTornado WatchSPC7 hr
May 27, 6:53 PM CDTMesoscale DiscussionSPC2 hr
May 27, 8:18 PM CDTMesoscale DiscussionSPC117 min
May 29, 8:54 AM CDTMesoscale DiscussionSPC2 hr
May 29, 1:04 PM CDTTornado WatchSPC9 hr
May 29, 3:03 PM CDTSevere Thunderstorm WarningGID42 min
May 29, 3:12 PM CDTMesoscale DiscussionSPC2 hr
May 29, 3:37 PM CDTSevere Thunderstorm WarningGID38 min
May 29, 3:43 PM CDTTornado WarningGID32 min
May 29, 4:04 PM CDTTornado WarningGID26 min
May 29, 4:13 PM CDTSevere Thunderstorm WarningGID32 min
May 29, 4:19 PM CDTSevere Thunderstorm WarningGID41 min
May 29, 4:24 PM CDTTornado WarningGID36 min
May 29, 4:28 PM CDTTornado WarningGID32 min
May 29, 4:44 PM CDTTornado Warning Tornado observedGID31 min
May 29, 4:47 PM CDTTornado WarningGID28 min
May 29, 4:54 PM CDTTornado WarningGID36 min
May 29, 4:58 PM CDTTornado WarningGID32 min
May 29, 5:15 PM CDTSevere Thunderstorm WarningGID30 min
May 29, 5:18 PM CDTTornado WarningGID27 min
May 29, 6:22 PM CDTAreal Flood AdvisoryGID4 hr
May 29, 8:06 PM CDTMesoscale DiscussionSPC54 min
May 29, 8:38 PM CDTSpecial Weather StatementGID52 min
May 29, 10:30 PM CDTAreal Flood AdvisoryGID4 hr
May 30, 9:26 AM CDTAreal Flood AdvisoryGID8 hr
Jun 8, 3:56 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 8, 5:39 PM CDTMesoscale DiscussionSPC96 min
Jun 13, 2:46 PM CDTSpecial Weather StatementGID29 min
Jun 14, 2:28 AM CDTMesoscale DiscussionSPC2 hr
Jun 14, 3:37 PM CDTTornado WatchSPC6 hr
Jun 14, 6:09 PM CDTSpecial Weather StatementGID51 min
Jun 14, 6:11 PM CDTMesoscale DiscussionSPC94 min
Jun 14, 6:22 PM CDTSevere Thunderstorm WarningGID38 min
Jun 14, 6:58 PM CDTSevere Thunderstorm WarningGID47 min
Jun 21, 10:25 PM CDTSevere Thunderstorm WatchSPC3 hr
Jun 22, 5:56 PM CDTTornado WatchSPC7 hr
Jun 23, 3:19 AM CDTSpecial Weather StatementGID26 min
Jun 23, 6:50 PM CDTMesoscale DiscussionSPC85 min
Jun 23, 8:35 PM CDTSevere Thunderstorm WatchSPC9 hr
Jun 23, 10:54 PM CDTMesoscale DiscussionSPC66 min
Jun 24, 2:28 AM CDTMesoscale DiscussionSPC92 min
Jun 25, 4:50 AM CDTSpecial Weather StatementGID25 min
Jun 25, 5:15 AM CDTSpecial Weather StatementGID30 min
Jun 27, 4:28 AM CDTMesoscale DiscussionSPC62 min
Jul 7, 9:14 PM CDTMesoscale DiscussionSPC2 hr
Jul 9, 6:08 PM CDTMesoscale DiscussionSPC2 hr
Jul 9, 6:40 PM CDTSevere Thunderstorm WatchSPC6 hr
Jul 14, 5:34 AM CDTAreal Flood AdvisoryGID4 hr
Jul 24, 4:54 PM CDTMesoscale DiscussionSPC96 min
Jul 25, 5:18 PM CDTSevere Thunderstorm WatchSPC4 hr
Jul 25, 7:34 PM CDTMesoscale DiscussionSPC56 min
Jul 29, 9:43 PM CDTDense Fog AdvisoryGID11 hr
Jul 30, 2:27 PM CDTDense Fog AdvisoryGID13 hr
Aug 1, 8:16 AM CDTMesoscale DiscussionSPC59 min
Aug 1, 12:53 PM CDTMesoscale DiscussionSPC2 hr
Aug 1, 1:22 PM CDTTornado WatchSPC9 hr
Aug 1, 3:25 PM CDTMesoscale DiscussionSPC95 min
Aug 1, 6:02 PM CDTMesoscale DiscussionSPC58 min
Aug 1, 6:07 PM CDTSevere Thunderstorm WatchSPC7 hr
Aug 1, 7:53 PM CDTSpecial Weather StatementGID37 min
Aug 1, 9:31 PM CDTMesoscale DiscussionSPC89 min
Aug 1, 9:47 PM CDTMesoscale DiscussionSPC88 min
Aug 6, 5:07 AM CDTMesoscale DiscussionSPC83 min
Aug 6, 5:22 PM CDTMesoscale DiscussionSPC2 hr
Aug 9, 4:02 AM CDTDense Fog AdvisoryGID6 hr
Aug 11, 3:08 PM CDTMesoscale DiscussionSPC97 min
Aug 31, 3:01 PM CDTMesoscale DiscussionSPC119 min
Sep 8, 5:46 AM CDTDense Fog AdvisoryGID4 hr
Sep 25, 5:35 AM CDTDense Fog AdvisoryGID4 hr
Sep 27, 5:45 PM CDTMesoscale DiscussionSPC60 min
Oct 3, 3:52 PM CDTMesoscale DiscussionSPC113 min
Oct 3, 8:16 PM CDTSevere Thunderstorm WatchSPC9 hr
Oct 3, 8:29 PM CDTSevere Thunderstorm WarningGID46 min
Oct 3, 8:44 PM CDTSevere Thunderstorm WarningGID31 min
Oct 3, 9:10 PM CDTSevere Thunderstorm WarningGID50 min
Oct 3, 9:13 PM CDTTornado WatchSPC5 hr
Oct 4, 2:06 AM CDTMesoscale DiscussionSPC84 min
Oct 4, 1:28 PM CDTMesoscale DiscussionSPC2 hr
Oct 10, 2:17 PM CDTWind AdvisoryGID25 hr
Oct 12, 3:34 PM CDTFrost AdvisoryGID17 hr
Oct 15, 11:23 AM CDTFrost AdvisoryGID22 hr
Oct 17, 11:56 AM CDTFreeze WarningGID21 hr
Oct 29, 11:48 AM CDTDense Fog AdvisoryGID16 hr
Nov 2, 2:23 PM CDTWind AdvisoryGID29 hr
Nov 16, 2:30 PM CSTWind AdvisoryGID27 hr
Dec 4, 3:55 AM CSTWinter Weather AdvisoryGID5 hr
Dec 7, 11:19 PM CSTWinter Weather AdvisoryGID19 hr
Dec 8, 3:52 PM CSTWind Chill AdvisoryGID18 hr
Dec 28, 2:58 AM CSTWind AdvisoryGID24 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.