Alert archive / Oklahoma / Ellis County
Weather alerts in Ellis County, Oklahoma, 2010
173 weather alerts in 2010, 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 2010. Tap one for its archive.
- Alerts
- 173
- Warnings
- 55
- Watches
- 41
- Advisories
- 42
- Busiest month
- May49 alerts
- Busiest day
- May 19, 201018 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
2 of 5 tornado warnings covering Ellis County in 2010 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 34 minutes after it went out.
Ellis County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 5 | 2 | 60% | 1 | 100% | 34 min |
| Severe thunderstorm warnings | 25 | 12 | 52% | 9 | 89% | 22 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Norman, OK: tornado warnings | 73 | 32 | 56% | 51 | 92% | 24 min |
| NWS Norman, OK: severe thunderstorm warnings | 379 | 157 | 59% | 406 | 73% | 26 min |
| NWS Norman, OK: flash flood warnings | 35 | 14 | 60% | 27 | 89% | 92 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 6, 3:31 AM CST | Wind Chill Advisory | OUN | 3 days |
| Jan 6, 6:31 PM CST | Winter Weather Advisory | OUN | 10 hr |
| Jan 18, 1:33 AM CST | Dense Fog Advisory | OUN | 8 hr |
| Jan 18, 9:23 PM CST | Dense Fog Advisory | OUN | 15 hr |
| Jan 22, 1:07 AM CST | Dense Fog Advisory | OUN | 10 hr |
| Jan 25, 11:36 AM CST | Winter Storm Watch | OUN | 63 hr |
| Jan 27, 3:50 AM CST | Winter Storm Warning | OUN | 56 hr |
| Jan 28, 12:22 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 28, 10:48 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Jan 30, 3:03 PM CST | Freezing Fog Advisory | OUN | 21 hr |
| Jan 31, 3:06 PM CST | Freezing Fog Advisory | OUN | 21 hr |
| Feb 2, 9:32 PM CST | Freezing Fog Advisory | OUN | 12 hr |
| Feb 3, 3:12 PM CST | Winter Weather Advisory | OUN | 19 hr |
| Feb 4, 9:45 PM CST | Freezing Fog Advisory | OUN | 9 hr |
| Feb 6, 3:45 AM CST | Winter Storm Watch | OUN | 48 hr |
| Feb 7, 3:40 AM CST | Winter Storm Warning | OUN | 34 hr |
| Feb 8, 3:59 AM CST | Winter Weather Advisory | OUN | 12 hr |
| Feb 20, 7:20 AM CST | Winter Weather Advisory | OUN | 5 hr |
| Feb 20, 7:10 PM CST | Dense Fog Advisory | OUN | 6 hr |
| Feb 20, 7:14 PM CST | Winter Weather Advisory | OUN | 10 hr |
| Feb 20, 7:29 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Feb 21, 7:41 AM CST | Winter Weather Advisory | OUN | 8 hr |
| Feb 25, 11:30 AM CST | Winter Weather Advisory | OUN | 23 hr |
| Mar 8, 4:46 PM CST | Mesoscale Discussion | SPC | 119 min |
| Mar 12, 10:04 AM CST | Wind Advisory | OUN | 7 hr |
| Mar 18, 3:20 PM CDT | Winter Storm Watch | OUN | 37 hr |
| Mar 19, 11:45 AM CDT | Winter Storm Warning | OUN | 50 hr |
| Mar 26, 3:39 AM CDT | Wind Advisory | OUN | 15 hr |
| Mar 26, 8:51 AM CDT | Red Flag Warning | OUN | 10 hr |
| Mar 26, 2:40 PM CDT | Wind Advisory | OUN | 28 hr |
| Mar 29, 4:32 AM CDT | Fire Weather Watch | OUN | 24 hr |
| Mar 29, 4:00 PM CDT | Red Flag Warning | OUN | 29 hr |
| Mar 30, 4:34 AM CDT | Fire Weather Watch | OUN | 24 hr |
| Mar 30, 4:01 PM CDT | Red Flag Warning | OUN | 29 hr |
| Mar 31, 4:37 AM CDT | Fire Weather Watch | OUN | 24 hr |
| Apr 1, 4:30 AM CDT | Red Flag Warning | OUN | 14 hr |
| Apr 1, 9:07 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Apr 1, 9:26 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 2, 2:46 PM CDT | Fire Weather Watch | OUN | 14 hr |
| Apr 3, 4:32 AM CDT | Red Flag Warning | OUN | 14 hr |
| Apr 4, 10:29 AM CDT | Fire Weather Watch | OUN | 17 hr |
| Apr 4, 12:27 PM CDT | Red Flag Warning | OUN | 8 hr |
| Apr 5, 3:29 AM CDT | Fire Weather Watch | OUN | 25 hr |
| Apr 5, 3:29 AM CDT | Red Flag Warning | OUN | 15 hr |
| Apr 5, 6:10 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Apr 6, 4:39 AM CDT | Red Flag Warning | OUN | 16 hr |
| Apr 6, 4:50 AM CDT | Wind Advisory | OUN | 14 hr |
| Apr 7, 4:36 AM CDT | Wind Advisory | OUN | 14 hr |
| Apr 7, 2:19 PM CDT | Freeze Warning | OUN | 19 hr |
| Apr 8, 3:38 PM CDT | Fire Weather Watch | OUN | 12 hr |
| Apr 9, 3:59 AM CDT | Red Flag Warning | OUN | 17 hr |
| Apr 11, 6:32 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Apr 13, 10:01 AM CDT | Wind Advisory | OUN | 10 hr |
| Apr 22, 2:21 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Apr 22, 2:30 PM CDT | Tornado Watch | SPC | 6 hr |
| Apr 22, 5:57 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Apr 22, 7:45 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Apr 22, 8:31 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 23, 12:00 AM CDT | Mesoscale Discussion | SPC | 60 min |
| Apr 23, 1:31 PM CDT | Wind Advisory | OUN | 6 hr |
| Apr 26, 3:40 PM CDT | Frost Advisory | OUN | 16 hr |
| Apr 27, 3:53 PM CDT | Wind Advisory | OUN | 29 hr |
| Apr 29, 4:28 AM CDT | Wind Advisory | OUN | 24 hr |
| May 7, 4:16 AM CDT | Wind Advisory | OUN | 9 hr |
| May 9, 3:42 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 9, 8:19 PM CDT | High Wind Watch | OUN | 14 hr |
| May 10, 4:16 AM CDT | High Wind Warning | OUN | 16 hr |
| May 10, 1:25 PM CDT | Tornado Watch | SPC | 9 hr |
| May 11, 7:47 PM CDT | Severe Thunderstorm Warning | OUN | 58 min |
| May 11, 7:54 PM CDT | Mesoscale Discussion | SPC | 66 min |
| May 11, 8:11 PM CDT | Tornado Watch | SPC | 8 hr |
| May 12, 2:41 PM CDT | Tornado Watch | SPC | 7 hr |
| May 12, 4:46 PM CDT | Severe Thunderstorm Warning | OUN | 59 min |
| May 12, 5:46 PM CDT | Severe Thunderstorm Warning | OUN | 59 min |
| May 12, 6:19 PM CDT | Severe Thunderstorm Warning | OUN | 56 min |
| May 12, 6:59 PM CDT | Mesoscale Discussion | SPC | 61 min |
| May 12, 9:11 PM CDT | Severe Thunderstorm Warning | OUN | 79 min |
| May 12, 9:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| May 12, 9:58 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 12, 10:51 PM CDT | Severe Thunderstorm Warning | OUN | 54 min |
| May 18, 9:27 PM CDT | Mesoscale Discussion | SPC | 93 min |
| May 18, 10:36 PM CDT | Mesoscale Discussion | SPC | 54 min |
| May 18, 10:49 PM CDT | Tornado Watch | SPC | 5 hr |
| May 18, 11:39 PM CDT | Tornado Warning | OUN | 36 min |
| May 19, 12:14 AM CDT | Severe Thunderstorm Warning | OUN | 61 min |
| May 19, 12:49 AM CDT | Tornado Warning | OUN | 41 min |
| May 19, 1:24 AM CDT | Mesoscale Discussion | SPC | 66 min |
| May 19, 1:27 AM CDT | Tornado Warning | OUN | 48 min |
| May 19, 2:07 AM CDT | Tornado Warning | OUN | 38 min |
| May 19, 3:23 AM CDT | Mesoscale Discussion | SPC | 67 min |
| May 19, 3:30 AM CDT | Areal Flood Advisory | OUN | 6 hr |
| May 19, 3:42 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 19, 4:50 AM CDT | Severe Thunderstorm Warning | OUN | 40 min |
| May 19, 5:25 AM CDT | Severe Thunderstorm Warning | OUN | 65 min |
| May 19, 9:48 AM CDT | Flash Flood Watch | OUN | 13 hr |
| May 19, 2:06 PM CDT | Tornado Watch | SPC | 8 hr |
| May 19, 3:12 PM CDT | Severe Thunderstorm Warning | OUN | 63 min |
| May 19, 3:42 PM CDT | Severe Thunderstorm Warning | OUN | 63 min |
| May 22, 6:47 AM CDT | Wind Advisory | OUN | 12 hr |
| May 24, 5:26 PM CDT | Mesoscale Discussion | SPC | 64 min |
| May 24, 6:38 PM CDT | Severe Thunderstorm Warning | OUN | 67 min |
| May 24, 7:09 PM CDT | Severe Thunderstorm Warning | OUN | 66 min |
| May 24, 7:43 PM CDT | Severe Thunderstorm Warning | OUN | 47 min |
| May 24, 8:18 PM CDT | Severe Thunderstorm Warning | OUN | 42 min |
| May 24, 8:23 PM CDT | Tornado Warning | OUN | 37 min |
| May 24, 8:36 PM CDT | Severe Thunderstorm Warning | OUN | 24 min |
| May 24, 8:58 PM CDT | Severe Thunderstorm Warning | OUN | 62 min |
| May 24, 9:50 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 25, 1:07 AM CDT | Mesoscale Discussion | SPC | 83 min |
| May 25, 1:24 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| May 26, 2:31 PM CDT | Severe Thunderstorm Warning | OUN | 59 min |
| May 26, 3:41 PM CDT | Areal Flood Advisory | OUN | 3 hr |
| May 31, 9:16 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jun 7, 2:39 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 7, 3:00 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 7, 5:08 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 7, 7:27 AM CDT | Mesoscale Discussion | SPC | 63 min |
| Jun 12, 9:50 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 13, 1:27 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 13, 2:02 PM CDT | Tornado Watch | SPC | 8 hr |
| Jun 13, 2:14 PM CDT | Flash Flood Watch | OUN | 38 hr |
| Jun 13, 6:13 PM CDT | Severe Thunderstorm Warning | OUN | 47 min |
| Jun 13, 6:55 PM CDT | Severe Thunderstorm Warning | OUN | 65 min |
| Jun 13, 10:58 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Jun 13, 11:50 PM CDT | Areal Flood Advisory | OUN | 3 hr |
| Jun 16, 7:43 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 21, 6:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jul 3, 9:41 PM CDT | Flash Flood Watch | OUN | 41 hr |
| Jul 5, 2:55 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 7, 4:12 AM CDT | Flash Flood Watch | OUN | 72 hr |
| Jul 8, 9:34 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| Jul 11, 2:16 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jul 11, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 11, 5:22 PM CDT | Severe Thunderstorm Warning | OUN | 26 min |
| Jul 12, 4:40 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Jul 13, 12:27 PM CDT | Heat Advisory | OUN | 55 hr |
| Jul 16, 3:08 PM CDT | Severe Thunderstorm Warning | OUN | 52 min |
| Jul 16, 4:22 PM CDT | Severe Thunderstorm Warning | OUN | 53 min |
| Jul 24, 1:43 PM CDT | Areal Flood Advisory | OUN | 3 hr |
| Aug 4, 7:10 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 5, 12:36 PM CDT | Heat Advisory | OUN | 10 days |
| Sep 13, 3:53 PM CDT | Severe Thunderstorm Warning | OUN | 82 min |
| Sep 13, 5:07 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Sep 15, 5:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Sep 15, 5:54 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 16, 4:28 PM CDT | Severe Thunderstorm Warning | OUN | 47 min |
| Sep 25, 1:56 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 25, 5:48 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Oct 25, 3:46 PM CDT | Frost Advisory | OUN | 33 hr |
| Oct 26, 3:50 AM CDT | Freeze Watch | OUN | 12 hr |
| Oct 26, 3:44 PM CDT | Freeze Warning | OUN | 9 hr |
| Oct 27, 4:28 AM CDT | Freeze Warning | OUN | 29 hr |
| Oct 28, 4:43 AM CDT | Fire Weather Watch | OUN | 24 hr |
| Oct 29, 4:23 AM CDT | Red Flag Warning | OUN | 15 hr |
| Nov 2, 4:45 AM CDT | Freeze Watch | OUN | 30 hr |
| Nov 2, 4:15 PM CDT | Frost Advisory | OUN | 17 hr |
| Nov 3, 10:54 AM CDT | Freeze Warning | OUN | 22 hr |
| Nov 3, 3:47 PM CDT | Fire Weather Watch | OUN | 65 hr |
| Nov 4, 1:36 PM CDT | Freeze Warning | OUN | 19 hr |
| Nov 4, 11:30 PM CDT | Fire Weather Watch | OUN | 53 hr |
| Nov 5, 3:03 AM CDT | Freeze Watch | OUN | 11 hr |
| Nov 6, 3:59 AM CDT | Red Flag Warning | OUN | 11 hr |
| Nov 7, 3:37 AM CST | Fire Weather Watch | OUN | 24 hr |
| Nov 7, 3:37 AM CST | Red Flag Warning | OUN | 14 hr |
| Nov 8, 3:33 AM CST | Fire Weather Watch | OUN | 25 hr |
| Nov 8, 3:33 AM CST | Red Flag Warning | OUN | 8 hr |
| Nov 17, 3:33 AM CST | Wind Advisory | OUN | 14 hr |
| Nov 17, 2:40 PM CST | Freeze Warning | OUN | 17 hr |
| Nov 21, 2:14 PM CST | Red Flag Warning | OUN | 4 hr |
| Nov 24, 12:16 PM CST | Red Flag Warning | OUN | 4 hr |
| Nov 28, 3:44 AM CST | Wind Advisory | OUN | 14 hr |
| Dec 17, 4:29 AM CST | Winter Weather Advisory | OUN | 10 hr |
| Dec 29, 4:04 AM CST | Dense Fog Advisory | OUN | 5 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 25 |
| Tornado Warning | 5 |
| Severe Thunderstorm Watch | 10 |
| Tornado Watch | 8 |
| Mesoscale Discussion | 35 |
| Flooding | |
| Flash Flood Watch | 4 |
| Areal Flood Advisory | 6 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 8 |
| Heat | |
| Heat Advisory | 2 |
| Cold | |
| Freeze Warning | 6 |
| Freeze Watch | 3 |
| Frost Advisory | 3 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 13 |
| Fire | |
| Red Flag Warning | 15 |
| Fire Weather Watch | 12 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
| Freezing Fog Advisory | 4 |
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.