Alert archive / Kansas / Ottawa County

Weather alerts in Ottawa County, Kansas, 2010

151 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Ottawa County and its neighbors

Each county as a circle sized by its count in 2010. Tap one for its archive.

Alerts
151
Warnings
37
Watches
31
Advisories
36
Busiest month
June31 alerts
Busiest day
April 30, 20107 alerts

Over time

By month

Warning verification

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

Ottawa County, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings151033%771%22 min
Flash flood warnings550%2100%36 min

Each office's whole area, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Topeka, KS: tornado warnings32391%743%4 min
NWS Topeka, KS: severe thunderstorm warnings24516533%51386%21 min
NWS Topeka, KS: flash flood warnings503432%8285%84 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 5, 2:20 PM CSTWinter Weather AdvisoryTOP52 hr
Jan 6, 3:40 PM CSTWind Chill WatchTOP12 hr
Jan 7, 3:27 AM CSTWind Chill WarningTOP45 hr
Jan 9, 12:34 AM CSTWind Chill AdvisoryTOP3 hr
Jan 15, 3:07 PM CSTDense Fog AdvisoryTOP69 hr
Jan 18, 11:54 AM CSTDense Fog AdvisoryTOP24 hr
Jan 19, 2:58 AM CSTFreezing Fog AdvisoryTOP9 hr
Jan 19, 5:29 PM CSTDense Fog AdvisoryTOP14 hr
Feb 3, 3:30 AM CSTFreezing Fog AdvisoryTOP6 hr
Feb 3, 3:14 PM CSTWinter Weather AdvisoryTOP51 hr
Feb 6, 3:27 AM CSTWinter Storm WatchTOP24 hr
Feb 7, 3:28 AM CSTWinter Weather AdvisoryTOP36 hr
Feb 14, 3:42 AM CSTWind AdvisoryTOP12 hr
Feb 19, 3:25 PM CSTWinter Storm WatchTOP20 hr
Feb 20, 4:07 AM CSTWinter Storm WarningTOP36 hr
Feb 21, 11:44 AM CSTWinter Weather AdvisoryTOP10 hr
Mar 19, 1:57 PM CDTWinter Weather AdvisoryTOP14 hr
Mar 30, 5:30 AM CDTRed Flag WarningTOP14 hr
Apr 1, 3:42 AM CDTWind AdvisoryTOP12 hr
Apr 1, 9:26 PM CDTSevere Thunderstorm WatchSPC5 hr
Apr 1, 11:50 PM CDTMesoscale DiscussionSPC85 min
Apr 5, 7:39 PM CDTTornado WatchSPC3 hr
Apr 13, 3:48 AM CDTWind AdvisoryTOP15 hr
Apr 22, 10:00 AM CDTAreal Flood WarningTOP3 hr
Apr 22, 10:02 PM CDTFlood WatchTOP15 hr
Apr 22, 11:17 PM CDTMesoscale DiscussionSPC58 min
Apr 24, 1:29 PM CDTMesoscale DiscussionSPC91 min
Apr 28, 4:08 AM CDTWind AdvisoryTOP15 hr
Apr 28, 3:52 PM CDTWind AdvisoryTOP26 hr
Apr 29, 4:25 PM CDTSevere Thunderstorm WarningTOP35 min
Apr 29, 4:39 PM CDTTornado WatchSPC7 hr
Apr 29, 7:12 PM CDTMesoscale DiscussionSPC63 min
Apr 29, 9:44 PM CDTSevere Thunderstorm WarningTOP46 min
Apr 29, 10:15 PM CDTAreal Flood AdvisoryTOP3 hr
Apr 29, 10:23 PM CDTSevere Thunderstorm WarningTOP52 min
Apr 29, 11:04 PM CDTMesoscale DiscussionSPC26 min
Apr 29, 11:12 PM CDTSevere Thunderstorm WarningTOP48 min
Apr 29, 11:46 PM CDTSevere Thunderstorm WatchSPC4 hr
May 2, 2:15 PM CDTMesoscale DiscussionSPC90 min
May 6, 3:45 PM CDTMesoscale DiscussionSPC2 hr
May 6, 6:16 PM CDTMesoscale DiscussionSPC59 min
May 6, 6:40 PM CDTSevere Thunderstorm WatchSPC7 hr
May 6, 10:58 PM CDTMesoscale DiscussionSPC92 min
May 7, 3:51 PM CDTFrost AdvisoryTOP15 hr
May 10, 3:14 PM CDTMesoscale DiscussionSPC2 hr
May 10, 3:26 PM CDTSevere Thunderstorm WatchSPC6 hr
May 12, 2:34 AM CDTMesoscale DiscussionSPC56 min
May 18, 3:48 AM CDTDense Fog AdvisoryTOP5 hr
May 22, 3:40 AM CDTWind AdvisoryTOP16 hr
May 23, 3:24 PM CDTWind AdvisoryTOP28 hr
May 24, 9:11 PM CDTMesoscale DiscussionSPC64 min
May 26, 1:17 AM CDTMesoscale DiscussionSPC58 min
Jun 1, 6:20 PM CDTMesoscale DiscussionSPC2 hr
Jun 1, 9:17 PM CDTMesoscale DiscussionSPC118 min
Jun 7, 9:07 AM CDTMesoscale DiscussionSPC83 min
Jun 8, 1:59 AM CDTSevere Thunderstorm WatchSPC7 hr
Jun 8, 2:56 AM CDTMesoscale DiscussionSPC2 hr
Jun 10, 3:25 PM CDTMesoscale DiscussionSPC2 hr
Jun 12, 3:14 PM CDTFlash Flood WatchTOP43 hr
Jun 12, 9:02 PM CDTAreal Flood AdvisoryTOP88 min
Jun 12, 10:35 PM CDTAreal Flood WarningTOP8 hr
Jun 13, 3:38 PM CDTSevere Thunderstorm WatchSPC3 hr
Jun 13, 6:54 PM CDTAreal Flood AdvisoryTOP6 hr
Jun 13, 9:14 PM CDTSevere Thunderstorm WarningTOP46 min
Jun 13, 10:11 PM CDTFlash Flood WarningTOP4 hr
Jun 17, 4:32 PM CDTMesoscale DiscussionSPC58 min
Jun 17, 5:32 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 17, 7:55 PM CDTMesoscale DiscussionSPC65 min
Jun 19, 8:02 AM CDTSevere Thunderstorm WatchSPC7 hr
Jun 19, 5:05 PM CDTTornado WatchSPC6 hr
Jun 19, 8:07 PM CDTSevere Thunderstorm WarningTOP38 min
Jun 19, 8:45 PM CDTSevere Thunderstorm WarningTOP45 min
Jun 19, 9:22 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 19, 11:13 PM CDTMesoscale DiscussionSPC92 min
Jun 20, 3:07 PM CDTTornado WatchSPC8 hr
Jun 20, 5:31 PM CDTMesoscale DiscussionSPC89 min
Jun 20, 6:55 PM CDTMesoscale DiscussionSPC95 min
Jun 20, 7:35 PM CDTSevere Thunderstorm WarningTOP55 min
Jun 20, 8:25 PM CDTSevere Thunderstorm WarningTOP65 min
Jun 21, 3:45 AM CDTSevere Thunderstorm WatchSPC5 hr
Jun 21, 1:48 PM CDTMesoscale DiscussionSPC87 min
Jun 21, 4:10 PM CDTMesoscale DiscussionSPC35 min
Jun 21, 5:56 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 4, 4:14 AM CDTFlood WatchTOP48 hr
Jul 4, 11:35 AM CDTAreal Flood WarningTOP6 hr
Jul 4, 5:34 PM CDTAreal Flood WarningTOP116 min
Jul 4, 6:18 PM CDTRiver Flood WarningTOP12 hr
Jul 5, 11:35 AM CDTRiver Flood WarningTOP20 hr
Jul 5, 9:34 PM CDTRiver Flood WarningTOP33 hr
Jul 13, 1:25 PM CDTHeat AdvisoryTOP32 hr
Jul 14, 2:30 PM CDTMesoscale DiscussionSPC90 min
Jul 14, 4:52 PM CDTSevere Thunderstorm WatchSPC6 hr
Jul 16, 3:26 PM CDTHeat AdvisoryTOP52 hr
Jul 17, 12:02 AM CDTMesoscale DiscussionSPC88 min
Jul 19, 3:55 AM CDTHeat AdvisoryTOP38 hr
Jul 20, 3:32 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 20, 3:50 PM CDTSevere Thunderstorm WarningTOP40 min
Jul 20, 3:58 PM CDTMesoscale DiscussionSPC2 hr
Jul 20, 5:45 PM CDTFlash Flood WarningTOP3 hr
Jul 20, 6:10 PM CDTSevere Thunderstorm WarningTOP35 min
Jul 21, 3:53 AM CDTHeat AdvisoryTOP63 hr
Jul 21, 6:07 AM CDTFlash Flood WarningTOP4 hr
Jul 21, 9:16 AM CDTFlash Flood WarningTOP3 hr
Jul 21, 9:26 AM CDTRiver Flood WarningTOP5 hr
Jul 30, 3:58 PM CDTMesoscale DiscussionSPC62 min
Aug 1, 3:37 PM CDTHeat AdvisoryTOP52 hr
Aug 7, 3:54 AM CDTHeat AdvisoryTOP48 hr
Aug 7, 3:13 PM CDTExcessive Heat WarningTOP7 days
Aug 13, 3:08 PM CDTSevere Thunderstorm WarningTOP37 min
Aug 13, 3:11 PM CDTMesoscale DiscussionSPC94 min
Aug 13, 3:28 PM CDTSevere Thunderstorm WatchSPC8 hr
Aug 14, 10:28 PM CDTMesoscale DiscussionSPC62 min
Aug 20, 4:26 PM CDTSevere Thunderstorm WatchSPC6 hr
Aug 20, 5:29 PM CDTSevere Thunderstorm WarningTOP46 min
Aug 31, 4:59 PM CDTMesoscale DiscussionSPC61 min
Aug 31, 5:17 PM CDTSevere Thunderstorm WatchSPC8 hr
Aug 31, 7:29 PM CDTMesoscale DiscussionSPC61 min
Sep 2, 1:51 PM CDTSpecial Weather StatementTOP24 min
Sep 2, 2:18 PM CDTSpecial Weather StatementTOP27 min
Sep 13, 1:38 PM CDTMesoscale DiscussionSPC67 min
Sep 13, 2:38 PM CDTTornado WatchSPC7 hr
Sep 13, 7:40 PM CDTMesoscale DiscussionSPC65 min
Sep 13, 9:58 PM CDTSevere Thunderstorm WatchSPC5 hr
Sep 13, 11:12 PM CDTSpecial Weather StatementTOP48 min
Sep 13, 11:30 PM CDTSevere Thunderstorm WarningTOP30 min
Sep 13, 11:45 PM CDTMesoscale DiscussionSPC60 min
Sep 13, 11:59 PM CDTSevere Thunderstorm WarningTOP17 min
Sep 14, 2:10 AM CDTMesoscale DiscussionSPC2 hr
Sep 14, 10:21 PM CDTMesoscale DiscussionSPC54 min
Sep 15, 1:39 AM CDTMesoscale DiscussionSPC2 hr
Sep 15, 3:39 AM CDTSpecial Weather StatementTOP51 min
Sep 15, 4:29 AM CDTSpecial Weather StatementTOP46 min
Sep 15, 5:06 AM CDTFlash Flood WarningTOP6 hr
Sep 15, 10:58 AM CDTAreal Flood WarningTOP4 hr
Sep 18, 1:15 PM CDTMesoscale DiscussionSPC2 hr
Sep 18, 2:21 PM CDTSevere Thunderstorm WatchSPC8 hr
Sep 18, 6:09 PM CDTMesoscale DiscussionSPC96 min
Sep 20, 3:33 AM CDTWind AdvisoryTOP15 hr
Sep 21, 5:06 PM CDTMesoscale DiscussionSPC84 min
Oct 25, 3:01 PM CDTWind AdvisoryTOP7 hr
Oct 27, 3:25 AM CDTRed Flag WarningTOP16 hr
Oct 27, 9:44 PM CDTFreeze WarningTOP10 hr
Oct 28, 4:07 PM CDTFire Weather WatchTOP12 hr
Oct 29, 3:54 AM CDTRed Flag WarningTOP15 hr
Nov 5, 9:02 PM CDTFire Weather WatchTOP18 hr
Nov 6, 3:07 PM CDTRed Flag WarningTOP28 hr
Nov 21, 4:07 AM CSTDense Fog AdvisoryTOP5 hr
Nov 27, 3:22 PM CSTWind AdvisoryTOP27 hr
Dec 10, 6:51 PM CSTWind AdvisoryTOP33 hr
Dec 23, 11:04 AM CSTWinter Weather AdvisoryTOP25 hr
Dec 30, 11:08 AM CSTWinter Weather AdvisoryTOP25 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 archive20092011

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.