Alert archive / Kansas / Lyon County

Weather alerts in Lyon County, Kansas, 2013

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

Lyon County and its neighbors

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

Alerts
144
Warnings
41
Watches
29
Advisories
27
Busiest month
May24 alerts
Busiest day
May 19, 20139 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 Lyon County in 2013 had a tornado report inside them; 0 of 3 tornado reports fell inside a warning.

Lyon County, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%30%
Severe thunderstorm warnings201145%1292%25 min
Flash flood warnings2150%4100%135 min

Each office's whole area, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Topeka, KS: tornado warnings16756%1377%14 min
NWS Topeka, KS: severe thunderstorm warnings1619243%23478%19 min
NWS Topeka, KS: flash flood warnings201335%27100%99 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 10, 7:42 PM CSTDense Fog AdvisoryTOP11 hr
Jan 12, 5:16 AM CSTWinter Weather AdvisoryTOP14 hr
Feb 9, 3:31 PM CSTWind AdvisoryTOP26 hr
Feb 18, 3:15 PM CSTWinter Storm WatchTOP25 hr
Feb 19, 3:54 PM CSTWinter Storm WarningTOP53 hr
Feb 21, 3:16 AM CSTMesoscale DiscussionSPC6 hr
Feb 23, 4:04 AM CSTWinter Storm WatchTOP37 hr
Feb 24, 4:58 AM CSTWinter Storm WarningTOP55 hr
Feb 24, 4:59 PM CSTWinter Weather AdvisoryTOP46 hr
Feb 25, 8:16 PM CSTMesoscale DiscussionSPC6 hr
Mar 21, 3:57 PM CDTWinter Storm WatchTOP37 hr
Mar 22, 3:53 PM CDTWinter Storm WarningTOP42 hr
Mar 24, 3:30 AM CDTMesoscale DiscussionSPC4 hr
Mar 30, 1:46 PM CDTMesoscale DiscussionSPC89 min
Mar 30, 2:04 PM CDTSevere Thunderstorm WatchSPC9 hr
Mar 30, 3:53 PM CDTMesoscale DiscussionSPC67 min
Apr 7, 1:47 PM CDTMesoscale DiscussionSPC118 min
Apr 9, 3:00 PM CDTMesoscale DiscussionSPC2 hr
Apr 9, 5:45 PM CDTSevere Thunderstorm WatchSPC7 hr
Apr 9, 10:35 PM CDTSevere Thunderstorm WarningTOP25 min
Apr 9, 10:57 PM CDTSevere Thunderstorm WarningTOP33 min
Apr 10, 5:32 AM CDTMesoscale DiscussionSPC4 hr
Apr 14, 3:41 AM CDTWind AdvisoryTOP12 hr
Apr 14, 5:36 PM CDTMesoscale DiscussionSPC114 min
Apr 17, 1:50 PM CDTTornado WatchSPC8 hr
Apr 17, 1:51 PM CDTFlood WatchTOP14 hr
Apr 18, 3:36 AM CDTFreeze WarningTOP28 hr
Apr 19, 3:46 AM CDTFreeze WarningTOP28 hr
Apr 22, 2:32 PM CDTSpecial Weather StatementTOP43 min
Apr 23, 3:41 AM CDTFreeze WarningTOP30 hr
Apr 24, 3:59 AM CDTFreeze WarningTOP29 hr
Apr 28, 3:07 AM CDTDense Fog AdvisoryTOP6 hr
May 8, 8:33 PM CDTSpecial Weather StatementTOP27 min
May 8, 8:41 PM CDTSevere Thunderstorm WarningTOP34 min
May 8, 8:56 PM CDTMesoscale DiscussionSPC94 min
May 8, 8:58 PM CDTSevere Thunderstorm WarningTOP32 min
May 8, 11:43 PM CDTSpecial Weather StatementTOP47 min
May 18, 10:00 PM CDTMesoscale DiscussionSPC30 min
May 18, 10:39 PM CDTTornado WatchSPC3 hr
May 19, 12:51 PM CDTMesoscale DiscussionSPC114 min
May 19, 1:47 PM CDTTornado WatchSPC10 hr
May 19, 4:57 PM CDTMesoscale DiscussionSPC63 min
May 19, 5:02 PM CDTSevere Thunderstorm WarningTOP43 min
May 19, 5:31 PM CDTSevere Thunderstorm WarningTOP29 min
May 19, 5:33 PM CDTTornado Warning Tornado observedTOP27 min
May 19, 5:41 PM CDTSevere Thunderstorm WarningTOP49 min
May 28, 1:37 PM CDTMesoscale DiscussionSPC113 min
May 28, 2:23 PM CDTTornado WatchSPC8 hr
May 29, 12:49 PM CDTFlash Flood WatchTOP25 hr
May 29, 3:12 PM CDTMesoscale DiscussionSPC2 hr
May 29, 9:11 PM CDTSevere Thunderstorm WarningTOP34 min
May 30, 9:47 PM CDTMesoscale DiscussionSPC58 min
May 31, 2:44 AM CDTSevere Thunderstorm WatchSPC5 hr
May 31, 3:05 AM CDTSevere Thunderstorm WarningTOP40 min
May 31, 3:42 AM CDTSevere Thunderstorm WarningTOP33 min
May 31, 4:51 AM CDTMesoscale DiscussionSPC114 min
Jun 18, 3:33 PM CDTSpecial Weather StatementTOP27 min
Jun 25, 1:17 AM CDTSpecial Weather StatementTOP43 min
Jun 25, 1:20 AM CDTSevere Thunderstorm WarningTOP40 min
Jun 25, 1:58 AM CDTSevere Thunderstorm WarningTOP32 min
Jun 25, 8:13 PM CDTMesoscale DiscussionSPC92 min
Jun 26, 3:43 PM CDTHeat AdvisoryTOP28 hr
Jun 27, 8:28 AM CDTSevere Thunderstorm WatchSPC8 hr
Jun 27, 11:35 AM CDTMesoscale DiscussionSPC115 min
Jun 27, 2:29 PM CDTSevere Thunderstorm WatchSPC8 hr
Jun 27, 3:37 PM CDTMesoscale DiscussionSPC83 min
Jun 27, 6:54 PM CDTMesoscale DiscussionSPC96 min
Jun 27, 8:53 PM CDTSevere Thunderstorm WarningTOP52 min
Jun 27, 8:59 PM CDTMesoscale DiscussionSPC91 min
Jun 27, 9:24 PM CDTSevere Thunderstorm WarningTOP51 min
Jun 27, 9:35 PM CDTSevere Thunderstorm WarningTOP40 min
Jun 27, 9:48 PM CDTSevere Thunderstorm WatchSPC2 hr
Jun 27, 9:57 PM CDTSevere Thunderstorm WarningTOP48 min
Jul 3, 6:13 PM CDTSpecial Weather StatementTOP32 min
Jul 4, 4:41 PM CDTSpecial Weather StatementTOP34 min
Jul 8, 3:21 PM CDTHeat AdvisoryTOP29 hr
Jul 9, 6:40 PM CDTSevere Thunderstorm WatchSPC6 hr
Jul 9, 10:26 PM CDTMesoscale DiscussionSPC2 hr
Jul 9, 10:34 PM CDTSevere Thunderstorm WarningTOP26 min
Jul 9, 10:55 PM CDTSpecial Weather StatementTOP35 min
Jul 20, 3:41 PM CDTSpecial Weather StatementTOP34 min
Jul 20, 4:23 PM CDTAreal Flood AdvisoryTOP82 min
Jul 23, 7:46 AM CDTMesoscale DiscussionSPC89 min
Jul 28, 4:09 AM CDTFlood WatchTOP46 hr
Jul 29, 2:38 PM CDTSevere Thunderstorm WatchSPC8 hr
Jul 29, 5:43 PM CDTFlash Flood WarningTOP2 hr
Jul 29, 7:51 PM CDTAreal Flood AdvisoryTOP114 min
Jul 29, 8:27 PM CDTRiver Flood WarningICT7 days
Jul 29, 8:43 PM CDTFlash Flood WarningTOP6 hr
Jul 29, 8:49 PM CDTRiver Flood WarningTOP10 days
Jul 29, 8:49 PM CDTRiver Flood WarningTOP65 hr
Jul 30, 1:56 PM CDTDense Fog AdvisoryTOP16 hr
Aug 2, 2:58 PM CDTMesoscale DiscussionSPC2 hr
Aug 2, 6:59 PM CDTMesoscale DiscussionSPC61 min
Aug 2, 7:15 PM CDTSevere Thunderstorm WatchSPC7 hr
Aug 2, 10:20 PM CDTMesoscale DiscussionSPC55 min
Aug 2, 11:43 PM CDTMesoscale DiscussionSPC92 min
Aug 2, 11:56 PM CDTSevere Thunderstorm WarningTOP49 min
Aug 3, 9:08 AM CDTRiver Flood WarningTOP5 days
Aug 3, 4:03 PM CDTFlood WatchTOP21 hr
Aug 5, 3:55 AM CDTFlood WatchTOP20 hr
Aug 7, 1:36 AM CDTSpecial Weather StatementTOP24 min
Aug 7, 1:51 AM CDTMesoscale DiscussionSPC54 min
Aug 7, 2:12 AM CDTSevere Thunderstorm WatchSPC6 hr
Aug 8, 3:18 AM CDTMesoscale DiscussionSPC87 min
Aug 8, 3:57 AM CDTSevere Thunderstorm WatchSPC3 hr
Aug 8, 4:43 AM CDTFlash Flood WatchTOP16 hr
Aug 12, 8:04 AM CDTRiver Flood WarningTOP37 hr
Aug 12, 12:35 PM CDTRiver Flood WarningTOP50 hr
Aug 15, 3:46 PM CDTSevere Thunderstorm WatchSPC6 hr
Aug 15, 6:41 PM CDTSpecial Weather StatementTOP34 min
Aug 31, 3:45 AM CDTHeat AdvisoryTOP16 hr
Sep 8, 1:14 PM CDTHeat AdvisoryTOP6 hr
Oct 4, 3:11 PM CDTSevere Thunderstorm WatchSPC9 hr
Oct 4, 5:29 PM CDTSevere Thunderstorm WarningTOP46 min
Oct 4, 7:25 PM CDTSpecial Weather StatementTOP35 min
Oct 4, 7:32 PM CDTSevere Thunderstorm WarningTOP28 min
Oct 18, 2:11 PM CDTFreeze WarningTOP19 hr
Oct 22, 3:33 AM CDTFrost AdvisoryTOP29 hr
Oct 24, 4:00 AM CDTFreeze WarningTOP29 hr
Oct 28, 6:50 AM CDTDense Fog AdvisoryTOP5 hr
Oct 30, 6:45 AM CDTMesoscale DiscussionSPC2 hr
Oct 30, 1:21 PM CDTMesoscale DiscussionSPC84 min
Oct 30, 2:15 PM CDTSevere Thunderstorm WatchSPC8 hr
Oct 30, 2:29 PM CDTFlash Flood WatchTOP19 hr
Oct 30, 6:14 PM CDTMesoscale DiscussionSPC2 hr
Oct 31, 4:17 AM CDTAreal Flood AdvisoryTOP3 hr
Nov 1, 7:47 PM CDTSpecial Weather StatementTOP43 min
Nov 8, 9:18 AM CSTWind AdvisoryTOP9 hr
Nov 16, 9:25 AM CSTWind AdvisoryTOP6 hr
Nov 16, 12:55 PM CSTRed Flag WarningTOP29 hr
Nov 17, 3:28 AM CSTWind AdvisoryTOP14 hr
Nov 17, 11:54 AM CSTHigh Wind WarningTOP3 hr
Nov 20, 3:43 PM CSTWinter Weather AdvisoryTOP35 hr
Dec 1, 10:46 PM CSTDense Fog AdvisoryTOP12 hr
Dec 3, 3:18 AM CSTDense Fog AdvisoryTOP9 hr
Dec 3, 8:22 PM CSTDense Fog AdvisoryTOP12 hr
Dec 8, 1:17 AM CSTWinter Weather AdvisoryTOP17 hr
Dec 13, 3:03 PM CSTWinter Weather AdvisoryTOP15 hr
Dec 19, 1:59 PM CSTWinter Storm WatchTOP23 hr
Dec 19, 1:59 PM CSTFreezing Rain AdvisoryTOP19 hr
Dec 20, 12:57 PM CSTWinter Storm WarningTOP39 hr
Dec 21, 2:35 PM CSTMesoscale DiscussionSPC4 hr
Dec 23, 3:40 AM CSTWind Chill AdvisoryTOP28 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.