Alert archive / Kansas / Jefferson County

Weather alerts in Jefferson County, Kansas, 2008

172 weather alerts in 2008, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Jefferson County and its neighbors

Each county as a circle sized by its count in 2008. Tap one for its archive.

Alerts
172
Warnings
36
Watches
38
Advisories
44
Busiest month
June50 alerts
Busiest day
June 12, 20089 alerts

Over time

By month

Warning verification

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

1 of 1 tornado warnings covering Jefferson County in 2008 had a tornado report inside them.

Jefferson County, 2008

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings110%0
Severe thunderstorm warnings251732%2588%25 min
Flash flood warnings3233%10%

Each office's whole area, 2008

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Topeka, KS: tornado warnings342138%4290%17 min
NWS Topeka, KS: severe thunderstorm warnings25616237%45787%21 min
NWS Topeka, KS: flash flood warnings421857%3574%48 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 15, 3:21 PM CSTSnow AdvisoryTOP36 hr
Jan 21, 2:15 PM CSTWinter Weather AdvisoryTOP7 hr
Jan 28, 3:31 AM CSTWind AdvisoryTOP14 hr
Jan 28, 9:58 PM CSTWind AdvisoryTOP17 hr
Jan 30, 4:17 AM CSTSnow and Blowing Snow AdvisoryTOP34 hr
Jan 31, 4:00 AM CSTSnow AdvisoryTOP11 hr
Feb 3, 9:37 PM CSTDense Fog AdvisoryTOP6 hr
Feb 4, 3:56 AM CSTWinter Storm WatchTOP24 hr
Feb 5, 3:59 AM CSTWinter Storm WarningTOP30 hr
Feb 5, 7:07 AM CSTMesoscale DiscussionSPC6 hr
Feb 5, 5:26 PM CSTMesoscale DiscussionSPC5 hr
Feb 6, 12:30 AM CSTMesoscale DiscussionSPC6 hr
Feb 15, 3:18 PM CSTWinter Storm WatchTOP24 hr
Feb 16, 3:02 PM CSTSnow and Blowing Snow AdvisoryTOP5 hr
Feb 16, 5:54 PM CSTWind AdvisoryTOP24 hr
Feb 16, 7:49 PM CSTWinter Weather AdvisoryTOP16 hr
Feb 20, 3:18 PM CSTWinter Weather AdvisoryTOP24 hr
Mar 1, 11:25 AM CSTWind AdvisoryTOP5 hr
Mar 2, 4:19 AM CSTWind AdvisoryTOP11 hr
Mar 2, 4:27 AM CSTFlood WatchTOP19 hr
Mar 2, 4:39 AM CSTWinter Weather AdvisoryTOP20 hr
Mar 2, 2:31 PM CSTMesoscale DiscussionSPC104 min
Mar 14, 4:48 AM CDTDense Fog AdvisoryTOP5 hr
Mar 30, 9:51 PM CDTSevere Thunderstorm WatchSPC7 hr
Mar 30, 11:20 PM CDTMesoscale DiscussionSPC55 min
Mar 31, 4:29 AM CDTMesoscale DiscussionSPC91 min
Apr 9, 2:55 PM CDTFlood WatchTOP19 hr
Apr 10, 2:03 PM CDTMesoscale DiscussionSPC117 min
Apr 10, 2:28 PM CDTSevere Thunderstorm WatchSPC7 hr
Apr 10, 6:44 PM CDTMesoscale DiscussionSPC61 min
Apr 10, 7:00 PM CDTSevere Thunderstorm WarningTOP14 min
Apr 10, 7:21 PM CDTSevere Thunderstorm WarningTOP39 min
Apr 14, 3:39 PM CDTWind AdvisoryTOP48 hr
Apr 17, 4:07 AM CDTFlood WatchTOP10 hr
Apr 17, 3:46 PM CDTSevere Thunderstorm WarningTOP29 min
Apr 21, 6:32 PM CDTMesoscale DiscussionSPC88 min
Apr 21, 7:03 PM CDTSevere Thunderstorm WatchSPC7 hr
Apr 21, 10:38 PM CDTMesoscale DiscussionSPC2 hr
Apr 21, 11:40 PM CDTSevere Thunderstorm WarningTOP26 min
Apr 23, 12:13 PM CDTMesoscale DiscussionSPC92 min
Apr 23, 2:50 PM CDTSevere Thunderstorm WarningTOP26 min
Apr 23, 3:37 PM CDTFlash Flood WatchTOP10 hr
Apr 24, 10:20 PM CDTSevere Thunderstorm WatchSPC7 hr
Apr 24, 11:55 PM CDTMesoscale DiscussionSPC65 min
Apr 25, 12:55 AM CDTMesoscale DiscussionSPC35 min
May 1, 11:47 AM CDTWind AdvisoryTOP4 hr
May 1, 4:56 PM CDTMesoscale DiscussionSPC94 min
May 1, 5:36 PM CDTTornado WatchSPC7 hr
May 1, 7:24 PM CDTMesoscale DiscussionSPC66 min
May 1, 10:04 PM CDTMesoscale DiscussionSPC116 min
May 1, 11:29 PM CDTMesoscale DiscussionSPC91 min
May 2, 12:53 AM CDTTornado WatchSPC6 hr
May 2, 12:53 AM CDTSevere Thunderstorm WarningTOP52 min
May 2, 1:04 AM CDTTornado WarningTOP27 min
May 2, 1:23 AM CDTSevere Thunderstorm WarningTOP19 min
May 3, 3:37 PM CDTFrost AdvisoryTOP17 hr
May 10, 3:28 AM CDTWind AdvisoryTOP28 hr
May 10, 5:13 PM CDTMesoscale DiscussionSPC2 hr
May 22, 3:38 AM CDTMesoscale DiscussionSPC97 min
May 22, 6:22 AM CDTAreal Flood AdvisoryTOP13 days
May 22, 7:02 AM CDTFlash Flood WarningTOP4 hr
May 22, 1:31 PM CDTAreal Flood WarningTOP18 days
May 22, 7:40 PM CDTAreal Flood WarningTOP79 days
May 24, 1:16 AM CDTSevere Thunderstorm WatchSPC4 hr
May 25, 4:10 AM CDTFlash Flood WatchTOP19 hr
May 25, 8:07 PM CDTMesoscale DiscussionSPC113 min
May 25, 8:46 PM CDTTornado WatchSPC3 hr
May 26, 3:48 PM CDTFlash Flood WatchTOP21 hr
Jun 2, 7:22 AM CDTMesoscale DiscussionSPC53 min
Jun 2, 7:49 AM CDTSevere Thunderstorm WatchSPC6 hr
Jun 2, 11:17 AM CDTSevere Thunderstorm WarningTOP43 min
Jun 2, 11:28 AM CDTSevere Thunderstorm WarningTOP62 min
Jun 2, 11:33 AM CDTFlash Flood WarningTOP4 hr
Jun 2, 10:03 PM CDTMesoscale DiscussionSPC87 min
Jun 3, 2:33 PM CDTMesoscale DiscussionSPC117 min
Jun 5, 3:02 AM CDTWind AdvisoryTOP16 hr
Jun 5, 1:41 PM CDTFlash Flood WatchTOP11 hr
Jun 5, 4:38 PM CDTMesoscale DiscussionSPC37 min
Jun 5, 4:50 PM CDTTornado Watch PDSSPC7 hr
Jun 5, 6:22 PM CDTMesoscale DiscussionSPC53 min
Jun 5, 8:17 PM CDTSevere Thunderstorm WarningTOP43 min
Jun 5, 8:52 PM CDTSevere Thunderstorm WarningTOP38 min
Jun 5, 9:28 PM CDTSevere Thunderstorm WarningTOP47 min
Jun 7, 4:02 PM CDTFlash Flood WatchTOP35 hr
Jun 8, 12:28 PM CDTMesoscale DiscussionSPC2 hr
Jun 8, 1:34 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 8, 4:33 PM CDTSevere Thunderstorm WarningTOP42 min
Jun 8, 5:12 PM CDTSevere Thunderstorm WarningTOP48 min
Jun 8, 5:53 PM CDTSevere Thunderstorm WarningTOP38 min
Jun 8, 6:05 PM CDTSevere Thunderstorm WarningTOP28 min
Jun 11, 8:57 PM CDTMesoscale DiscussionSPC93 min
Jun 11, 9:46 PM CDTTornado WatchSPC5 hr
Jun 11, 11:41 PM CDTMesoscale DiscussionSPC2 hr
Jun 12, 12:41 AM CDTSevere Thunderstorm WarningTOP49 min
Jun 12, 2:26 PM CDTMesoscale DiscussionSPC2 hr
Jun 12, 3:06 PM CDTTornado WatchSPC7 hr
Jun 12, 3:52 PM CDTMesoscale DiscussionSPC113 min
Jun 12, 6:18 PM CDTSevere Thunderstorm WarningTOP57 min
Jun 12, 6:36 PM CDTFlash Flood WarningTOP4 hr
Jun 12, 7:21 PM CDTSevere Thunderstorm WarningTOP39 min
Jun 12, 8:18 PM CDTMesoscale DiscussionSPC87 min
Jun 15, 8:44 AM CDTMesoscale DiscussionSPC91 min
Jun 15, 9:09 AM CDTSevere Thunderstorm WatchSPC8 hr
Jun 15, 11:54 AM CDTSevere Thunderstorm WarningTOP51 min
Jun 15, 1:16 PM CDTMesoscale DiscussionSPC119 min
Jun 15, 8:25 PM CDTSevere Thunderstorm WarningTOP13 min
Jun 16, 2:24 AM CDTSevere Thunderstorm WatchSPC8 hr
Jun 19, 1:14 PM CDTMesoscale DiscussionSPC61 min
Jun 19, 1:27 PM CDTSevere Thunderstorm WatchSPC10 hr
Jun 19, 3:31 PM CDTSevere Thunderstorm WarningTOP44 min
Jun 19, 3:59 PM CDTSevere Thunderstorm WarningTOP30 min
Jun 19, 6:11 PM CDTMesoscale DiscussionSPC64 min
Jun 24, 3:00 PM CDTMesoscale DiscussionSPC60 min
Jun 26, 3:54 PM CDTMesoscale DiscussionSPC96 min
Jun 26, 4:50 PM CDTSevere Thunderstorm WatchSPC8 hr
Jun 27, 1:37 PM CDTMesoscale DiscussionSPC2 hr
Jun 27, 4:04 PM CDTSevere Thunderstorm WatchSPC4 hr
Jun 27, 8:13 PM CDTSevere Thunderstorm WatchSPC8 hr
Jul 2, 5:59 PM CDTMesoscale DiscussionSPC61 min
Jul 2, 6:16 PM CDTSevere Thunderstorm WatchSPC6 hr
Jul 2, 7:10 PM CDTSevere Thunderstorm WarningTOP23 min
Jul 2, 9:11 PM CDTMesoscale DiscussionSPC94 min
Jul 8, 5:02 PM CDTAreal Flood AdvisoryTOP2 hr
Jul 9, 3:36 AM CDTDense Fog AdvisoryTOP5 hr
Jul 24, 3:43 PM CDTMesoscale DiscussionSPC92 min
Jul 24, 5:00 PM CDTTornado WatchSPC6 hr
Jul 24, 7:49 PM CDTMesoscale DiscussionSPC86 min
Jul 25, 1:54 PM CDTMesoscale DiscussionSPC66 min
Jul 26, 1:12 PM CDTMesoscale DiscussionSPC63 min
Jul 26, 2:13 PM CDTSevere Thunderstorm WatchSPC8 hr
Jul 26, 5:03 PM CDTMesoscale DiscussionSPC27 min
Jul 26, 7:05 PM CDTAreal Flood AdvisoryTOP85 min
Jul 26, 7:38 PM CDTMesoscale DiscussionSPC67 min
Jul 30, 5:01 AM CDTAreal Flood AdvisoryTOP3 hr
Jul 31, 12:55 AM CDTDense Fog AdvisoryTOP8 hr
Jul 31, 3:52 PM CDTHeat AdvisoryTOP4 days
Aug 3, 10:59 AM CDTExcessive Heat WarningTOP55 hr
Aug 23, 2:05 AM CDTMesoscale DiscussionSPC115 min
Aug 28, 2:48 PM CDTMesoscale DiscussionSPC87 min
Aug 28, 3:22 PM CDTSevere Thunderstorm WatchSPC7 hr
Aug 28, 6:11 PM CDTMesoscale DiscussionSPC2 hr
Sep 2, 1:17 PM CDTAreal Flood AdvisoryTOP118 min
Sep 5, 4:36 AM CDTDense Fog AdvisoryTOP5 hr
Sep 8, 4:50 AM CDTSevere Thunderstorm WarningTOP30 min
Sep 8, 5:17 AM CDTMesoscale DiscussionSPC2 hr
Sep 8, 6:05 AM CDTAreal Flood AdvisoryTOP82 min
Sep 11, 3:41 AM CDTFlood WatchTOP71 hr
Sep 12, 10:45 AM CDTAreal Flood AdvisoryTOP2 hr
Sep 12, 4:28 PM CDTTornado WatchSPC6 hr
Sep 12, 5:34 PM CDTAreal Flood WarningTOP3 hr
Oct 25, 3:31 AM CDTFreeze WatchTOP36 hr
Oct 26, 3:30 PM CDTFreeze WarningTOP18 hr
Oct 26, 3:30 PM CDTWind AdvisoryTOP4 hr
Oct 27, 1:57 PM CDTFreeze WarningTOP20 hr
Oct 31, 10:08 PM CDTDense Fog AdvisoryTOP11 hr
Nov 2, 1:00 AM CSTDense Fog AdvisoryTOP8 hr
Nov 5, 4:00 AM CSTWind AdvisoryTOP10 hr
Nov 5, 5:06 PM CSTSevere Thunderstorm WatchSPC4 hr
Nov 5, 7:08 PM CSTMesoscale DiscussionSPC97 min
Nov 6, 3:56 AM CSTWind AdvisoryTOP13 hr
Dec 8, 4:16 PM CSTWinter Weather AdvisoryTOP26 hr
Dec 12, 3:27 PM CSTWind AdvisoryTOP45 hr
Dec 14, 2:22 PM CSTWind Chill AdvisoryTOP20 hr
Dec 15, 3:44 PM CSTWinter Weather AdvisoryTOP24 hr
Dec 17, 3:51 PM CSTFreezing Rain AdvisoryTOP35 hr
Dec 18, 11:35 AM CSTMesoscale DiscussionSPC6 hr
Dec 18, 6:46 PM CSTMesoscale DiscussionSPC6 hr
Dec 20, 3:22 PM CSTWind Chill AdvisoryTOP21 hr
Dec 23, 4:04 AM CSTWinter Weather AdvisoryTOP26 hr
Dec 26, 6:47 PM CSTMesoscale DiscussionSPC58 min
Dec 26, 9:51 PM CSTTornado WatchSPC7 hr
Dec 27, 5:59 AM CSTFreezing Rain AdvisoryTOP4 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 archive20072009

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.