Alert archive / Oklahoma / Johnston County

Weather alerts in Johnston County, Oklahoma, 2023

234 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Johnston County and its neighbors

Each county as a circle sized by its count in 2023. Tap one for its archive.

Alerts
234
Warnings
61
Watches
29
Advisories
70
Busiest month
June44 alerts
Busiest day
March 16, 20239 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 Johnston County in 2023 had a tornado report inside them.

Johnston County, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings28775%580%22 min
Flash flood warnings5340%1100%19 min

Each office's whole area, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Norman, OK: tornado warnings1023170%3786%14 min
NWS Norman, OK: severe thunderstorm warnings89431864%88484%24 min
NWS Norman, OK: flash flood warnings571770%3874%76 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, 2:02 PM CSTMesoscale DiscussionSPC118 min
Jan 2, 3:31 PM CSTSpecial Weather StatementOUN29 min
Jan 2, 3:34 PM CSTTornado WatchSPC6 hr
Jan 11, 2:13 PM CSTWind AdvisoryOUN16 hr
Jan 23, 3:36 AM CSTWinter Weather AdvisoryOUN50 hr
Jan 24, 11:08 AM CSTMesoscale DiscussionSPC6 hr
Jan 29, 12:44 PM CSTWinter Storm WatchOUN20 hr
Jan 30, 8:58 AM CSTWinter Storm WarningOUN3 days
Jan 31, 7:18 AM CSTMesoscale DiscussionSPC4 hr
Feb 1, 5:30 PM CSTMesoscale DiscussionSPC6 hr
Feb 5, 5:55 AM CSTDense Fog AdvisoryOUN4 hr
Feb 9, 4:07 AM CSTFreezing Fog AdvisoryOUN6 hr
Feb 13, 2:35 AM CSTWind AdvisoryOUN39 hr
Feb 15, 3:20 PM CSTMesoscale DiscussionSPC55 min
Feb 15, 3:45 PM CSTSevere Thunderstorm WatchSPC7 hr
Feb 15, 6:53 PM CSTMesoscale DiscussionSPC2 hr
Feb 15, 8:07 PM CSTTornado WarningOUN38 min
Feb 15, 8:40 PM CSTSevere Thunderstorm WarningOUN50 min
Feb 15, 9:21 PM CSTMesoscale DiscussionSPC54 min
Feb 15, 9:46 PM CSTSevere Thunderstorm WarningOUN44 min
Feb 22, 4:07 AM CSTMesoscale DiscussionSPC2 hr
Feb 22, 4:30 AM CSTSpecial Weather StatementOUN30 min
Feb 22, 4:55 AM CSTSpecial Weather StatementOUN35 min
Feb 25, 4:22 PM CSTWind AdvisoryOUN38 hr
Feb 26, 7:02 PM CSTMesoscale DiscussionSPC118 min
Feb 26, 7:32 PM CSTTornado WatchSPC5 hr
Feb 26, 9:31 PM CSTSevere Thunderstorm Warning Considerable damage threatOUN44 min
Feb 26, 10:16 PM CSTSevere Thunderstorm Warning Considerable damage threatOUN44 min
Feb 26, 10:17 PM CSTMesoscale DiscussionSPC88 min
Mar 2, 12:48 PM CSTSevere Thunderstorm WatchSPC6 hr
Mar 2, 3:40 PM CSTSevere Thunderstorm WarningOUN50 min
Mar 7, 3:30 PM CSTMesoscale DiscussionSPC2 hr
Mar 7, 9:29 PM CSTMesoscale DiscussionSPC91 min
Mar 8, 2:18 AM CSTSpecial Weather StatementOUN27 min
Mar 8, 5:16 PM CSTMesoscale DiscussionSPC89 min
Mar 9, 2:58 AM CSTAreal Flood AdvisoryOUN3 hr
Mar 11, 5:07 PM CSTMesoscale DiscussionSPC113 min
Mar 16, 2:48 AM CDTWind AdvisoryOUN22 hr
Mar 16, 12:52 PM CDTMesoscale DiscussionSPC53 min
Mar 16, 1:33 PM CDTTornado WatchSPC6 hr
Mar 16, 3:03 PM CDTMesoscale DiscussionSPC117 min
Mar 16, 4:12 PM CDTSevere Thunderstorm WarningOUN48 min
Mar 16, 4:16 PM CDTSevere Thunderstorm WarningOUN44 min
Mar 16, 4:20 PM CDTSevere Thunderstorm WarningOUN40 min
Mar 16, 4:53 PM CDTSevere Thunderstorm WarningOUN48 min
Mar 16, 4:56 PM CDTSevere Thunderstorm WarningOUN34 min
Mar 23, 3:10 PM CDTSevere Thunderstorm WatchSPC8 hr
Mar 23, 9:32 PM CDTMesoscale DiscussionSPC118 min
Mar 23, 11:06 PM CDTSevere Thunderstorm WatchSPC8 hr
Mar 24, 5:12 AM CDTAreal Flood AdvisoryOUN3 hr
Mar 24, 7:05 AM CDTAreal Flood AdvisoryOUN3 hr
Mar 24, 8:33 AM CDTAreal Flood AdvisoryOUN117 min
Mar 25, 1:26 AM CDTDense Fog AdvisoryOUN10 hr
Mar 30, 3:02 PM CDTMesoscale DiscussionSPC118 min
Mar 30, 3:16 PM CDTSpecial Weather StatementOUN29 min
Mar 30, 3:44 PM CDTSpecial Weather StatementOUN31 min
Apr 2, 1:22 PM CDTMesoscale DiscussionSPC113 min
Apr 2, 2:44 PM CDTTornado WatchSPC7 hr
Apr 4, 3:06 PM CDTMesoscale DiscussionSPC114 min
May 5, 3:52 PM CDTSevere Thunderstorm WatchSPC8 hr
May 6, 3:41 PM CDTSevere Thunderstorm WatchSPC7 hr
May 6, 8:31 PM CDTMesoscale DiscussionSPC119 min
May 6, 10:52 PM CDTWind AdvisoryOUN3 hr
May 11, 2:22 PM CDTMesoscale DiscussionSPC113 min
May 11, 3:44 PM CDTTornado WatchSPC10 hr
May 11, 10:28 PM CDTSevere Thunderstorm WarningOUN47 min
May 12, 9:59 AM CDTFlood WatchOUN3 days
May 12, 3:39 PM CDTSevere Thunderstorm WatchSPC10 hr
May 19, 12:49 PM CDTMesoscale DiscussionSPC86 min
May 19, 1:09 PM CDTSevere Thunderstorm WatchSPC9 hr
May 19, 3:30 PM CDTMesoscale DiscussionSPC90 min
May 29, 5:14 PM CDTAreal Flood AdvisoryOUN3 hr
May 30, 4:19 PM CDTSpecial Weather StatementOUN26 min
May 30, 4:32 PM CDTAreal Flood AdvisoryOUN3 hr
May 30, 4:57 PM CDTSpecial Weather StatementOUN33 min
Jun 3, 2:30 PM CDTSpecial Weather StatementOUN30 min
Jun 3, 2:37 PM CDTAreal Flood AdvisoryOUN3 hr
Jun 3, 2:55 PM CDTSpecial Weather StatementOUN35 min
Jun 3, 3:10 PM CDTFlash Flood WarningOUN3 hr
Jun 9, 3:00 PM CDTSpecial Weather StatementOUN30 min
Jun 10, 8:46 AM CDTSpecial Weather StatementOUN14 min
Jun 12, 4:39 AM CDTSevere Thunderstorm WatchSPC6 hr
Jun 12, 7:50 AM CDTSevere Thunderstorm Warning Considerable damage threatOUN40 min
Jun 12, 8:26 AM CDTSevere Thunderstorm Warning Considerable damage threatOUN49 min
Jun 12, 8:38 AM CDTMesoscale DiscussionSPC97 min
Jun 12, 9:20 AM CDTAreal Flood AdvisoryOUN3 hr
Jun 12, 9:53 AM CDTSpecial Weather StatementOUN37 min
Jun 12, 10:25 AM CDTSpecial Weather StatementOUN35 min
Jun 12, 4:42 PM CDTSevere Thunderstorm WarningOUN48 min
Jun 13, 2:52 AM CDTMesoscale DiscussionSPC83 min
Jun 13, 3:30 AM CDTSevere Thunderstorm WatchSPC7 hr
Jun 13, 5:39 AM CDTMesoscale DiscussionSPC96 min
Jun 13, 6:03 AM CDTSpecial Weather StatementOUN27 min
Jun 14, 7:38 AM CDTMesoscale DiscussionSPC2 hr
Jun 14, 8:57 AM CDTSevere Thunderstorm WatchSPC7 hr
Jun 15, 2:34 PM CDTTornado WatchSPC6 hr
Jun 15, 7:29 PM CDTSpecial Weather StatementOUN46 min
Jun 15, 8:44 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 15, 9:35 PM CDTMesoscale DiscussionSPC55 min
Jun 15, 11:21 PM CDTMesoscale DiscussionSPC84 min
Jun 17, 7:58 PM CDTMesoscale DiscussionSPC2 hr
Jun 17, 8:21 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 17, 10:14 PM CDTSevere Thunderstorm Warning Considerable damage threatOUN61 min
Jun 17, 10:15 PM CDTMesoscale DiscussionSPC2 hr
Jun 17, 10:21 PM CDTAreal Flood AdvisoryOUN3 hr
Jun 17, 11:28 PM CDTAreal Flood AdvisoryOUN2 hr
Jun 18, 2:44 PM CDTHeat AdvisoryOUN54 hr
Jun 20, 2:46 AM CDTExcessive Heat WarningOUN18 hr
Jun 23, 11:18 AM CDTSevere Thunderstorm WatchSPC5 hr
Jun 23, 12:47 PM CDTMesoscale DiscussionSPC118 min
Jun 23, 1:45 PM CDTHeat AdvisoryOUN31 hr
Jun 23, 2:24 PM CDTSevere Thunderstorm WarningOUN32 min
Jun 23, 2:59 PM CDTAreal Flood AdvisoryOUN3 hr
Jun 24, 3:23 AM CDTHeat AdvisoryOUN41 hr
Jun 25, 3:05 PM CDTHeat AdvisoryOUN30 hr
Jun 26, 2:55 PM CDTHeat AdvisoryOUN29 hr
Jun 27, 3:27 PM CDTHeat AdvisoryOUN30 hr
Jun 28, 2:33 PM CDTExcessive Heat WarningOUN6 hr
Jun 28, 3:32 PM CDTHeat AdvisoryOUN29 hr
Jul 3, 12:53 PM CDTMesoscale DiscussionSPC2 hr
Jul 3, 5:52 PM CDTAreal Flood AdvisoryOUN3 hr
Jul 3, 7:10 PM CDTSpecial Weather StatementOUN35 min
Jul 5, 3:12 AM CDTHeat AdvisoryOUN12 hr
Jul 7, 9:14 AM CDTSevere Thunderstorm WarningOUN20 min
Jul 7, 10:17 AM CDTSpecial Weather StatementOUN28 min
Jul 8, 12:31 AM CDTMesoscale DiscussionSPC59 min
Jul 9, 3:38 AM CDTMesoscale DiscussionSPC97 min
Jul 9, 3:59 AM CDTSevere Thunderstorm WatchSPC6 hr
Jul 9, 5:11 AM CDTSevere Thunderstorm WarningOUN64 min
Jul 9, 6:34 AM CDTMesoscale DiscussionSPC86 min
Jul 10, 12:30 PM CDTFlood WatchOUN21 hr
Jul 10, 2:37 PM CDTHeat AdvisoryOUN29 hr
Jul 11, 12:40 AM CDTMesoscale DiscussionSPC95 min
Jul 11, 2:47 AM CDTSevere Thunderstorm WarningOUN23 min
Jul 11, 3:11 AM CDTFlash Flood WarningOUN6 hr
Jul 11, 4:22 AM CDTSevere Thunderstorm WarningOUN38 min
Jul 11, 5:02 AM CDTSevere Thunderstorm WarningOUN58 min
Jul 11, 5:14 AM CDTSevere Thunderstorm WarningOUN46 min
Jul 11, 5:47 AM CDTSevere Thunderstorm WarningOUN58 min
Jul 11, 9:02 AM CDTAreal Flood WarningOUN4 hr
Jul 11, 2:10 PM CDTHeat AdvisoryOUN13 hr
Jul 12, 3:07 AM CDTExcessive Heat WarningOUN18 hr
Jul 12, 3:07 AM CDTExcessive Heat WarningOUN42 hr
Jul 13, 2:37 PM CDTHeat AdvisoryOUN30 hr
Jul 14, 3:13 AM CDTExcessive Heat WarningOUN18 hr
Jul 15, 12:49 AM CDTSpecial Weather StatementOUN56 min
Jul 16, 8:52 AM CDTAreal Flood AdvisoryOUN4 hr
Jul 16, 9:32 AM CDTSpecial Weather StatementOUN28 min
Jul 16, 9:36 AM CDTAreal Flood AdvisoryOUN3 hr
Jul 16, 9:48 AM CDTAreal Flood AdvisoryOUN3 hr
Jul 16, 9:57 AM CDTSpecial Weather StatementOUN33 min
Jul 16, 10:11 AM CDTFlash Flood WarningOUN3 hr
Jul 16, 1:02 PM CDTAreal Flood WarningOUN118 min
Jul 16, 1:56 PM CDTHeat AdvisoryOUN3 days
Jul 18, 9:57 AM CDTExcessive Heat WarningOUN34 hr
Jul 18, 9:57 AM CDTHeat AdvisoryOUN5 hr
Jul 19, 2:58 PM CDTExcessive Heat WarningOUN29 hr
Jul 24, 2:15 AM CDTHeat AdvisoryOUN42 hr
Jul 25, 1:32 PM CDTHeat AdvisoryOUN30 hr
Jul 26, 1:13 PM CDTHeat AdvisoryOUN31 hr
Jul 29, 2:56 AM CDTHeat AdvisoryOUN41 hr
Jul 30, 3:05 AM CDTHeat AdvisoryOUN41 hr
Jul 31, 3:50 AM CDTHeat AdvisoryOUN40 hr
Aug 1, 4:19 AM CDTHeat AdvisoryOUN41 hr
Aug 1, 3:08 PM CDTExcessive Heat WarningOUN30 hr
Aug 1, 3:08 PM CDTHeat AdvisoryOUN54 hr
Aug 2, 2:59 PM CDTExcessive Heat WarningOUN30 hr
Aug 2, 2:59 PM CDTHeat AdvisoryOUN54 hr
Aug 3, 2:53 PM CDTExcessive Heat WarningOUN30 hr
Aug 3, 2:53 PM CDTHeat AdvisoryOUN44 hr
Aug 4, 2:44 AM CDTExcessive Heat WarningOUN42 hr
Aug 5, 2:38 PM CDTHeat AdvisoryOUN30 hr
Aug 6, 4:32 AM CDTSpecial Weather StatementOUN28 min
Aug 6, 5:06 AM CDTSpecial Weather StatementOUN24 min
Aug 8, 1:07 AM CDTMesoscale DiscussionSPC113 min
Aug 8, 2:21 PM CDTHeat AdvisoryOUN31 hr
Aug 9, 5:20 PM CDTMesoscale DiscussionSPC115 min
Aug 9, 5:35 PM CDTSevere Thunderstorm WatchSPC4 hr
Aug 9, 5:43 PM CDTSevere Thunderstorm WarningOUN47 min
Aug 10, 3:23 AM CDTHeat AdvisoryOUN18 hr
Aug 10, 1:46 PM CDTExcessive Heat WarningOUN31 hr
Aug 10, 1:46 PM CDTHeat AdvisoryOUN31 hr
Aug 11, 2:04 PM CDTExcessive Heat WarningOUN31 hr
Aug 12, 2:29 PM CDTExcessive Heat WarningOUN31 hr
Aug 16, 4:37 PM CDTHeat AdvisoryOUN28 hr
Aug 17, 4:33 PM CDTHeat AdvisoryOUN28 hr
Aug 18, 3:08 AM CDTExcessive Heat WarningOUN18 hr
Aug 18, 3:08 AM CDTHeat AdvisoryOUN42 hr
Aug 18, 3:04 PM CDTExcessive Heat WarningOUN30 hr
Aug 19, 2:41 AM CDTExcessive Heat WarningOUN42 hr
Aug 20, 2:08 AM CDTExcessive Heat WarningOUN43 hr
Aug 21, 3:02 AM CDTExcessive Heat WarningOUN42 hr
Aug 22, 2:53 AM CDTExcessive Heat WarningOUN42 hr
Aug 23, 2:16 AM CDTExcessive Heat WarningOUN43 hr
Aug 24, 2:19 AM CDTHeat AdvisoryOUN43 hr
Aug 25, 2:22 AM CDTExcessive Heat WarningOUN19 hr
Aug 25, 2:06 PM CDTHeat AdvisoryOUN30 hr
Sep 4, 3:08 PM CDTHeat AdvisoryOUN28 hr
Sep 6, 3:11 PM CDTHeat AdvisoryOUN28 hr
Sep 7, 2:51 PM CDTHeat AdvisoryOUN28 hr
Sep 8, 11:22 PM CDTSpecial Weather StatementOUN23 min
Sep 19, 4:43 PM CDTSevere Thunderstorm WatchSPC6 hr
Sep 19, 8:27 PM CDTMesoscale DiscussionSPC93 min
Sep 20, 6:45 AM CDTSpecial Weather StatementOUN45 min
Sep 20, 7:29 AM CDTAreal Flood AdvisoryOUN2 hr
Sep 20, 7:33 AM CDTSpecial Weather StatementOUN42 min
Sep 20, 8:09 AM CDTAreal Flood AdvisoryOUN2 hr
Sep 21, 2:58 PM CDTMesoscale DiscussionSPC2 hr
Sep 23, 3:05 AM CDTHeat AdvisoryOUN16 hr
Sep 23, 9:44 PM CDTMesoscale DiscussionSPC91 min
Oct 4, 1:47 PM CDTSpecial Weather StatementOUN28 min
Oct 4, 2:13 PM CDTSpecial Weather StatementOUN32 min
Oct 4, 2:19 PM CDTFlood WatchOUN11 hr
Oct 4, 2:44 PM CDTSevere Thunderstorm WarningOUN16 min
Oct 4, 2:45 PM CDTSevere Thunderstorm WatchSPC7 hr
Oct 4, 3:33 PM CDTFlash Flood WarningOUN4 hr
Oct 4, 5:21 PM CDTMesoscale DiscussionSPC84 min
Oct 4, 5:25 PM CDTAreal Flood AdvisoryOUN4 hr
Oct 4, 6:00 PM CDTFlash Flood WarningOUN3 hr
Oct 4, 7:42 PM CDTAreal Flood AdvisoryOUN2 hr
Oct 4, 9:12 PM CDTAreal Flood AdvisoryOUN4 hr
Oct 23, 1:10 PM CDTFlood WatchOUN65 hr
Oct 25, 7:28 PM CDTSevere Thunderstorm WarningOUN28 min
Oct 29, 4:34 AM CDTFreeze WarningOUN28 hr
Oct 30, 3:52 AM CDTFreeze WarningOUN29 hr
Nov 16, 2:04 AM CSTDense Fog AdvisoryOUN9 hr
Nov 20, 2:30 AM CSTSevere Thunderstorm WarningOUN45 min
Nov 20, 3:12 AM CSTSevere Thunderstorm WarningOUN48 min
Nov 20, 2:58 PM CSTMesoscale DiscussionSPC62 min
Nov 30, 9:01 PM CSTSpecial Weather StatementOUN44 min
Dec 2, 6:29 AM CSTDense Fog AdvisoryOUN5 hr
Dec 3, 3:17 AM CSTDense Fog AdvisoryOUN7 hr
Dec 22, 12:08 AM CSTDense Fog AdvisoryOUN12 hr
Dec 22, 6:56 PM CSTDense Fog AdvisoryOUN16 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 archive20222024

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.