Alert archive / Oklahoma / Ellis County

Weather alerts in Ellis County, Oklahoma, 2019

235 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Ellis County and its neighbors

Each county as a circle sized by its count in 2019. Tap one for its archive.

Alerts
235
Warnings
74
Watches
32
Advisories
52
Busiest month
May75 alerts
Busiest day
May 24, 201919 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 4 tornado warnings covering Ellis County in 2019 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.

Ellis County, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings4175%10%
Severe thunderstorm warnings561082%367%10 min
Flash flood warnings110%0

Each office's whole area, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Norman, OK: tornado warnings1112875%4760%13 min
NWS Norman, OK: severe thunderstorm warnings94227571%67084%24 min
NWS Norman, OK: flash flood warnings1507252%15887%75 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 1, 6:42 PM CSTWinter Weather AdvisoryOUN59 hr
Jan 2, 3:44 PM CSTWinter Storm WarningOUN33 hr
Jan 16, 4:32 AM CSTDense Fog AdvisoryOUN7 hr
Jan 18, 3:08 AM CSTWind AdvisoryOUN33 hr
Jan 21, 3:19 AM CSTWind AdvisoryOUN16 hr
Feb 1, 6:36 AM CSTDense Fog AdvisoryOUN5 hr
Feb 1, 11:33 PM CSTDense Fog AdvisoryOUN8 hr
Feb 5, 5:56 AM CSTDense Fog AdvisoryOUN8 hr
Feb 5, 2:07 PM CSTDense Fog AdvisoryOUN34 hr
Feb 5, 2:12 PM CSTWinter Weather AdvisoryOUN40 hr
Feb 10, 10:50 PM CSTDense Fog AdvisoryOUN13 hr
Feb 11, 3:12 PM CSTMesoscale DiscussionSPC3 hr
Feb 14, 2:52 PM CSTWinter Weather AdvisoryOUN21 hr
Feb 16, 7:45 PM CSTWinter Weather AdvisoryOUN8 hr
Feb 18, 3:14 PM CSTWinter Weather AdvisoryOUN33 hr
Feb 20, 5:41 AM CSTFreezing Fog AdvisoryOUN3 hr
Feb 22, 4:17 PM CSTHigh Wind WarningOUN26 hr
Feb 22, 4:17 PM CSTWind AdvisoryOUN26 hr
Feb 26, 10:41 AM CSTWinter Weather AdvisoryOUN43 hr
Mar 2, 4:07 AM CSTWinter Weather AdvisoryOUN31 hr
Mar 3, 2:43 AM CSTWind Chill AdvisoryOUN30 hr
Mar 3, 3:31 PM CSTWinter Weather AdvisoryOUN11 hr
Mar 9, 2:18 AM CSTWind AdvisoryOUN3 hr
Mar 9, 9:05 AM CSTWind AdvisoryOUN5 hr
Mar 11, 2:51 AM CDTHigh Wind WatchOUN32 hr
Mar 12, 10:56 AM CDTDense Fog AdvisoryOUN14 hr
Mar 12, 10:56 AM CDTHigh Wind WarningOUN38 hr
Mar 14, 3:16 AM CDTWind AdvisoryOUN16 hr
Mar 28, 6:46 PM CDTSpecial Weather StatementOUN29 min
Mar 28, 6:49 PM CDTSpecial Weather StatementOUN26 min
Mar 28, 7:00 PM CDTSevere Thunderstorm WarningOUN30 min
Mar 30, 3:02 PM CDTFreeze WarningOUN19 hr
Apr 3, 3:47 PM CDTSevere Thunderstorm WatchSPC6 hr
Apr 3, 8:33 PM CDTMesoscale DiscussionSPC87 min
Apr 8, 3:52 PM CDTFire Weather WatchOUN18 hr
Apr 8, 3:58 PM CDTHigh Wind WatchOUN47 hr
Apr 9, 10:11 AM CDTRed Flag WarningOUN36 hr
Apr 9, 3:39 PM CDTWind AdvisoryOUN41 hr
Apr 10, 4:10 AM CDTHigh Wind WarningOUN16 hr
Apr 11, 3:10 PM CDTFrost AdvisoryOUN18 hr
Apr 17, 1:13 PM CDTMesoscale DiscussionSPC2 hr
Apr 17, 1:32 PM CDTSevere Thunderstorm WatchSPC6 hr
Apr 17, 3:43 PM CDTMesoscale DiscussionSPC2 hr
Apr 17, 4:31 PM CDTSpecial Weather StatementOUN29 min
Apr 17, 4:43 PM CDTSevere Thunderstorm WarningOUN47 min
Apr 17, 4:49 PM CDTTornado WarningOUN41 min
Apr 17, 5:05 PM CDTAreal Flood AdvisoryOUN3 hr
Apr 17, 5:24 PM CDTTornado WarningOUN36 min
Apr 17, 5:49 PM CDTSevere Thunderstorm WarningOUN41 min
Apr 17, 5:50 PM CDTMesoscale DiscussionSPC85 min
Apr 18, 12:27 AM CDTSpecial Weather StatementOUN63 min
Apr 18, 4:47 PM CDTSpecial Weather StatementOUN58 min
Apr 18, 5:46 PM CDTSpecial Weather StatementOUN59 min
Apr 30, 9:13 AM CDTSpecial Weather StatementOUN32 min
Apr 30, 11:58 AM CDTSevere Thunderstorm WarningOUN47 min
May 4, 12:33 AM CDTDense Fog AdvisoryOUN8 hr
May 5, 5:51 PM CDTSevere Thunderstorm WatchSPC7 hr
May 5, 8:30 PM CDTMesoscale DiscussionSPC90 min
May 7, 10:18 AM CDTFlood WatchOUN24 hr
May 7, 3:31 PM CDTTornado WatchSPC6 hr
May 7, 5:24 PM CDTMesoscale DiscussionSPC66 min
May 7, 7:29 PM CDTSevere Thunderstorm WarningOUN46 min
May 7, 8:13 PM CDTSevere Thunderstorm WarningOUN47 min
May 7, 9:00 PM CDTSevere Thunderstorm WarningOUN45 min
May 8, 4:15 PM CDTSpecial Weather StatementOUN30 min
May 9, 9:43 PM CDTFrost AdvisoryOUN6 hr
May 13, 3:05 PM CDTMesoscale DiscussionSPC2 hr
May 13, 4:26 PM CDTSevere Thunderstorm WarningOUN49 min
May 13, 5:11 PM CDTSevere Thunderstorm WarningOUN22 min
May 18, 3:31 PM CDTMesoscale DiscussionSPC119 min
May 18, 3:48 PM CDTSevere Thunderstorm WatchSPC6 hr
May 18, 6:07 PM CDTMesoscale DiscussionSPC83 min
May 19, 11:36 AM CDTFlood WatchOUN49 hr
May 20, 6:14 AM CDTMesoscale DiscussionSPC2 hr
May 20, 7:09 AM CDTSevere Thunderstorm WatchSPC6 hr
May 20, 7:35 AM CDTSevere Thunderstorm WarningOUN40 min
May 20, 7:56 AM CDTSevere Thunderstorm WarningOUN34 min
May 20, 8:10 AM CDTSevere Thunderstorm WarningOUN50 min
May 20, 8:30 AM CDTAreal Flood AdvisoryOUN3 hr
May 20, 10:49 AM CDTSevere Thunderstorm WarningOUN41 min
May 20, 11:35 AM CDTMesoscale DiscussionSPC85 min
May 20, 11:49 AM CDTAreal Flood AdvisoryOUN116 min
May 20, 1:45 PM CDTAreal Flood AdvisoryOUN4 hr
May 20, 2:04 PM CDTSevere Thunderstorm WarningOUN56 min
May 20, 2:15 PM CDTMesoscale DiscussionSPC90 min
May 20, 2:24 PM CDTTornado WarningOUN51 min
May 20, 2:52 PM CDTSevere Thunderstorm WarningOUN68 min
May 21, 10:43 AM CDTWind AdvisoryOUN8 hr
May 22, 9:33 AM CDTFlood WatchOUN5 days
May 23, 1:42 PM CDTMesoscale DiscussionSPC63 min
May 23, 1:47 PM CDTMesoscale DiscussionSPC118 min
May 23, 3:11 PM CDTTornado WatchSPC7 hr
May 23, 5:48 PM CDTMesoscale DiscussionSPC87 min
May 23, 7:43 PM CDTSpecial Weather StatementOUN32 min
May 23, 8:15 PM CDTSevere Thunderstorm WarningOUN45 min
May 23, 8:30 PM CDTTornado Warning Tornado observedOUN45 min
May 23, 8:32 PM CDTMesoscale DiscussionSPC88 min
May 23, 9:38 PM CDTSevere Thunderstorm WarningOUN52 min
May 23, 9:53 PM CDTTornado WatchSPC4 hr
May 23, 11:45 PM CDTSevere Thunderstorm WarningOUN45 min
May 24, 12:34 AM CDTSpecial Weather StatementOUN26 min
May 24, 1:19 AM CDTSevere Thunderstorm WarningOUN41 min
May 24, 2:02 AM CDTSevere Thunderstorm WatchSPC4 hr
May 24, 2:03 AM CDTSpecial Weather StatementOUN27 min
May 24, 2:37 AM CDTAreal Flood WarningOUN7 hr
May 24, 1:17 PM CDTSpecial Weather StatementOUN28 min
May 24, 1:32 PM CDTSevere Thunderstorm WarningOUN43 min
May 24, 2:18 PM CDTTornado WatchSPC8 hr
May 24, 2:59 PM CDTSevere Thunderstorm WarningOUN46 min
May 24, 3:40 PM CDTSevere Thunderstorm WarningOUN35 min
May 24, 4:00 PM CDTSpecial Weather StatementOUN30 min
May 24, 4:26 PM CDTSevere Thunderstorm WarningOUN49 min
May 25, 3:06 PM CDTMesoscale DiscussionSPC114 min
May 25, 3:24 PM CDTTornado WatchSPC7 hr
May 25, 5:09 PM CDTSpecial Weather StatementOUN36 min
May 25, 5:28 PM CDTAreal Flood AdvisoryOUN3 hr
May 25, 5:34 PM CDTSevere Thunderstorm WarningOUN56 min
May 25, 5:41 PM CDTSpecial Weather StatementOUN34 min
May 25, 5:50 PM CDTSevere Thunderstorm WarningOUN40 min
May 25, 5:56 PM CDTMesoscale DiscussionSPC2 hr
May 25, 6:48 PM CDTFlash Flood WarningOUN3 hr
May 26, 12:47 PM CDTAreal Flood WarningOUN6 hr
May 26, 7:55 PM CDTTornado WatchSPC8 hr
May 26, 10:53 PM CDTSevere Thunderstorm WarningOUN37 min
May 26, 11:24 PM CDTSevere Thunderstorm WarningOUN51 min
May 27, 12:13 AM CDTSevere Thunderstorm WarningOUN47 min
May 27, 2:21 AM CDTSevere Thunderstorm WarningOUN39 min
May 27, 2:40 AM CDTSevere Thunderstorm WarningOUN50 min
May 27, 3:02 AM CDTSevere Thunderstorm WarningOUN28 min
May 27, 3:15 AM CDTSevere Thunderstorm WarningOUN45 min
Jun 1, 8:23 AM CDTSevere Thunderstorm WarningOUN52 min
Jun 1, 9:13 AM CDTSevere Thunderstorm WarningOUN47 min
Jun 1, 10:04 AM CDTSpecial Weather StatementOUN56 min
Jun 4, 12:59 AM CDTSpecial Weather StatementOUN46 min
Jun 4, 1:43 AM CDTSpecial Weather StatementOUN47 min
Jun 11, 5:47 PM CDTSevere Thunderstorm WatchSPC5 hr
Jun 14, 1:19 AM CDTSpecial Weather StatementOUN56 min
Jun 14, 2:23 AM CDTSpecial Weather StatementOUN22 min
Jun 14, 3:09 AM CDTSpecial Weather StatementOUN21 min
Jun 14, 5:51 PM CDTMesoscale DiscussionSPC114 min
Jun 15, 3:42 PM CDTSevere Thunderstorm WatchSPC8 hr
Jun 15, 7:13 PM CDTMesoscale DiscussionSPC92 min
Jun 15, 9:02 PM CDTSevere Thunderstorm Watch PDSSPC7 hr
Jun 15, 9:11 PM CDTSevere Thunderstorm WarningOUN49 min
Jun 15, 10:27 PM CDTSevere Thunderstorm WarningOUN63 min
Jun 15, 10:44 PM CDTAreal Flood AdvisoryOUN3 hr
Jun 18, 8:08 PM CDTMesoscale DiscussionSPC2 hr
Jun 18, 9:29 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 18, 10:18 PM CDTSevere Thunderstorm WarningOUN42 min
Jun 18, 10:57 PM CDTSevere Thunderstorm WarningOUN48 min
Jun 19, 4:36 PM CDTMesoscale DiscussionSPC114 min
Jun 19, 5:51 PM CDTSevere Thunderstorm WatchSPC4 hr
Jun 19, 8:21 PM CDTSevere Thunderstorm WarningOUN54 min
Jun 22, 1:58 PM CDTMesoscale DiscussionSPC2 hr
Jun 23, 1:10 AM CDTMesoscale DiscussionSPC95 min
Jun 23, 1:37 AM CDTSevere Thunderstorm WatchSPC8 hr
Jun 23, 3:07 AM CDTSpecial Weather StatementOUN23 min
Jun 23, 3:32 AM CDTSevere Thunderstorm WarningOUN43 min
Jun 23, 4:14 AM CDTMesoscale DiscussionSPC91 min
Jun 23, 8:56 PM CDTSpecial Weather StatementOUN34 min
Jun 23, 9:08 PM CDTSevere Thunderstorm WarningOUN52 min
Jun 23, 9:22 PM CDTSpecial Weather StatementOUN23 min
Jun 23, 9:38 PM CDTSevere Thunderstorm WarningOUN52 min
Jul 3, 3:59 PM CDTSpecial Weather StatementOUN46 min
Jul 3, 4:58 PM CDTAreal Flood AdvisoryOUN2 hr
Aug 6, 7:58 PM CDTSevere Thunderstorm WarningOUN32 min
Aug 6, 8:28 PM CDTSpecial Weather StatementOUN32 min
Aug 7, 4:18 PM CDTSpecial Weather StatementOUN57 min
Aug 7, 4:36 PM CDTSevere Thunderstorm WarningOUN23 min
Aug 7, 5:18 PM CDTSevere Thunderstorm WarningOUN42 min
Aug 12, 3:25 PM CDTSevere Thunderstorm WarningOUN50 min
Aug 12, 3:38 PM CDTMesoscale DiscussionSPC67 min
Aug 12, 4:31 PM CDTSpecial Weather StatementOUN59 min
Aug 12, 4:34 PM CDTSpecial Weather StatementOUN41 min
Aug 12, 4:43 PM CDTSevere Thunderstorm WarningOUN47 min
Aug 12, 4:50 PM CDTSevere Thunderstorm WarningOUN40 min
Aug 12, 5:09 PM CDTSevere Thunderstorm WarningOUN51 min
Aug 12, 5:44 PM CDTSpecial Weather StatementOUN46 min
Aug 12, 6:02 PM CDTSpecial Weather StatementOUN28 min
Aug 12, 6:32 PM CDTSpecial Weather StatementOUN43 min
Aug 12, 7:18 PM CDTAreal Flood AdvisoryOUN3 hr
Aug 13, 8:31 PM CDTMesoscale DiscussionSPC59 min
Aug 13, 8:59 PM CDTSevere Thunderstorm WatchSPC4 hr
Aug 13, 9:45 PM CDTSevere Thunderstorm WarningOUN45 min
Aug 16, 6:29 PM CDTMesoscale DiscussionSPC91 min
Aug 17, 12:31 AM CDTSpecial Weather StatementOUN44 min
Aug 17, 4:00 AM CDTSpecial Weather StatementOUN30 min
Aug 17, 7:15 PM CDTMesoscale DiscussionSPC3 hr
Aug 20, 3:43 PM CDTSevere Thunderstorm WarningOUN47 min
Aug 23, 8:40 PM CDTMesoscale DiscussionSPC2 hr
Aug 23, 9:37 PM CDTSpecial Weather StatementOUN23 min
Aug 23, 10:53 PM CDTSevere Thunderstorm WarningOUN43 min
Aug 24, 3:03 PM CDTFlood WatchOUN22 hr
Aug 24, 11:55 PM CDTSevere Thunderstorm WarningOUN50 min
Aug 25, 12:28 AM CDTSpecial Weather StatementOUN32 min
Aug 25, 1:08 AM CDTSpecial Weather StatementOUN52 min
Aug 25, 1:39 AM CDTSevere Thunderstorm WarningOUN51 min
Aug 29, 7:06 AM CDTSpecial Weather StatementOUN24 min
Aug 29, 8:05 AM CDTSpecial Weather StatementOUN25 min
Aug 29, 8:33 AM CDTSpecial Weather StatementOUN27 min
Aug 31, 5:12 AM CDTAreal Flood AdvisoryOUN3 hr
Sep 8, 5:58 PM CDTSpecial Weather StatementOUN32 min
Sep 12, 2:05 PM CDTSpecial Weather StatementOUN25 min
Sep 12, 2:08 PM CDTSevere Thunderstorm WarningOUN52 min
Sep 12, 2:56 PM CDTSevere Thunderstorm WatchSPC7 hr
Sep 28, 4:50 PM CDTSpecial Weather StatementOUN25 min
Sep 28, 6:57 PM CDTSpecial Weather StatementOUN48 min
Oct 3, 1:40 AM CDTAreal Flood AdvisoryOUN3 hr
Oct 3, 5:24 AM CDTAreal Flood AdvisoryOUN3 hr
Oct 3, 8:51 AM CDTAreal Flood AdvisoryOUN114 min
Oct 9, 3:38 AM CDTFreeze WatchOUN31 hr
Oct 9, 6:34 PM CDTSevere Thunderstorm WatchSPC7 hr
Oct 9, 8:20 PM CDTSevere Thunderstorm WarningOUN40 min
Oct 10, 10:40 AM CDTFreeze WarningOUN23 hr
Oct 10, 3:19 PM CDTFreeze WatchOUN23 hr
Oct 11, 2:27 PM CDTFreeze WarningOUN19 hr
Oct 24, 11:28 AM CDTWinter Weather AdvisoryOUN20 hr
Oct 24, 12:33 PM CDTMesoscale DiscussionSPC6 hr
Oct 29, 11:14 AM CDTWinter Weather AdvisoryOUN32 hr
Nov 7, 3:22 AM CSTMesoscale DiscussionSPC6 hr
Nov 7, 3:53 AM CSTWinter Weather AdvisoryOUN6 hr
Nov 10, 2:13 PM CSTWind AdvisoryOUN28 hr
Nov 11, 6:23 AM CSTHigh Wind WarningOUN6 hr
Nov 11, 6:23 AM CSTWind AdvisoryOUN12 hr
Nov 24, 2:29 PM CSTHigh Wind WatchOUN22 hr
Nov 25, 3:22 AM CSTFire Weather WatchOUN13 hr
Nov 25, 12:30 PM CSTHigh Wind WarningOUN32 hr
Nov 25, 3:58 PM CSTRed Flag WarningOUN28 hr
Nov 27, 11:55 AM CSTWinter Weather AdvisoryOUN22 hr
Nov 28, 2:30 PM CSTDense Fog AdvisoryOUN12 hr
Nov 29, 1:43 PM CSTWind AdvisoryOUN31 hr
Dec 9, 7:36 AM CSTWind AdvisoryOUN4 hr
Dec 15, 11:01 AM CSTWinter Weather AdvisoryOUN30 hr
Dec 21, 2:26 PM CSTDense Fog AdvisoryOUN22 hr
Dec 27, 9:39 AM CSTDense Fog AdvisoryOUN14 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 archive20182020

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.