Alert archive / Oklahoma / Alfalfa County
Weather alerts in Alfalfa County, Oklahoma, 2018
207 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Alfalfa County and its neighbors
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Alerts
- 207
- Warnings
- 70
- Watches
- 35
- Advisories
- 39
- Busiest month
- May55 alerts
- Busiest day
- May 24, 201810 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 Alfalfa County in 2018 had a tornado report inside them.
Alfalfa County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 40 | 18 | 55% | 8 | 100% | 24 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Norman, OK: tornado warnings | 32 | 9 | 72% | 17 | 65% | 12 min |
| NWS Norman, OK: severe thunderstorm warnings | 615 | 205 | 67% | 527 | 82% | 24 min |
| NWS Norman, OK: flash flood warnings | 87 | 39 | 55% | 102 | 85% | 96 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 10, 3:22 PM CST | Wind Advisory | OUN | 27 hr |
| Jan 11, 3:06 AM CST | Winter Weather Advisory | OUN | 7 hr |
| Jan 15, 3:50 AM CST | Wind Chill Advisory | OUN | 32 hr |
| Jan 19, 3:25 AM CST | Fire Weather Watch | OUN | 49 hr |
| Jan 21, 4:22 AM CST | Wind Advisory | OUN | 38 hr |
| Jan 23, 2:50 PM CST | Fire Weather Watch | OUN | 38 hr |
| Jan 25, 4:21 AM CST | Red Flag Warning | OUN | 17 hr |
| Jan 28, 3:32 AM CST | Fire Weather Watch | OUN | 48 hr |
| Jan 30, 3:23 AM CST | Red Flag Warning | OUN | 16 hr |
| Feb 14, 2:09 PM CST | Red Flag Warning | OUN | 5 hr |
| Feb 20, 2:58 AM CST | Winter Weather Advisory | OUN | 60 hr |
| Feb 20, 3:24 AM CST | Special Weather Statement | OUN | 51 min |
| Feb 20, 4:02 AM CST | Special Weather Statement | OUN | 43 min |
| Feb 20, 4:21 AM CST | Mesoscale Discussion | SPC | 3 hr |
| Feb 20, 3:25 PM CST | Winter Weather Advisory | OUN | 48 hr |
| Feb 21, 7:02 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Feb 23, 4:12 AM CST | Dense Fog Advisory | OUN | 10 hr |
| Feb 27, 8:41 PM CST | Dense Fog Advisory | OUN | 12 hr |
| Mar 4, 3:24 PM CST | Fire Weather Watch | OUN | 24 hr |
| Mar 4, 3:24 PM CST | Red Flag Warning | OUN | 28 hr |
| Mar 5, 3:26 AM CST | Wind Advisory | OUN | 12 hr |
| Mar 5, 3:26 AM CST | Wind Advisory | OUN | 40 hr |
| Mar 5, 3:45 PM CST | Red Flag Warning | OUN | 27 hr |
| Mar 13, 3:23 PM CDT | Fire Weather Watch | OUN | 13 hr |
| Mar 14, 4:32 AM CDT | Red Flag Warning | OUN | 15 hr |
| Mar 15, 4:35 AM CDT | Fire Weather Watch | OUN | 11 hr |
| Mar 15, 4:35 AM CDT | Red Flag Warning | OUN | 15 hr |
| Mar 15, 3:58 PM CDT | Red Flag Warning | OUN | 28 hr |
| Mar 16, 1:21 PM CDT | Wind Advisory | OUN | 5 hr |
| Mar 19, 12:13 AM CDT | Special Weather Statement | OUN | 32 min |
| Mar 19, 12:35 AM CDT | Severe Thunderstorm Warning | OUN | 40 min |
| Mar 19, 2:14 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 21, 2:37 PM CDT | Fire Weather Watch | OUN | 37 hr |
| Mar 23, 3:29 AM CDT | Red Flag Warning | OUN | 18 hr |
| Mar 26, 5:42 AM CDT | Dense Fog Advisory | OUN | 116 min |
| Mar 28, 11:34 PM CDT | Special Weather Statement | OUN | 56 min |
| Mar 29, 12:05 AM CDT | Areal Flood Advisory | OUN | 115 min |
| Mar 29, 1:00 AM CDT | Areal Flood Advisory | OUN | 2 hr |
| Apr 1, 8:14 PM CDT | Freeze Warning | OUN | 14 hr |
| Apr 2, 3:21 PM CDT | Freeze Watch | OUN | 13 hr |
| Apr 2, 3:21 PM CDT | Wind Advisory | OUN | 28 hr |
| Apr 2, 3:27 PM CDT | Fire Weather Watch | OUN | 12 hr |
| Apr 3, 3:50 AM CDT | Red Flag Warning | OUN | 15 hr |
| Apr 3, 4:07 AM CDT | Freeze Warning | OUN | 30 hr |
| Apr 5, 4:08 PM CDT | Freeze Warning | OUN | 42 hr |
| Apr 9, 2:41 AM CDT | Freeze Watch | OUN | 12 hr |
| Apr 10, 3:28 AM CDT | Fire Weather Watch | OUN | 25 hr |
| Apr 10, 3:28 PM CDT | Fire Weather Watch | OUN | 20 hr |
| Apr 11, 4:02 AM CDT | Fire Weather Watch | OUN | 47 hr |
| Apr 11, 4:02 AM CDT | Red Flag Warning | OUN | 17 hr |
| Apr 11, 4:02 AM CDT | Red Flag Warning | OUN | 42 hr |
| Apr 12, 2:46 AM CDT | Red Flag Warning | OUN | 43 hr |
| Apr 13, 3:31 AM CDT | Wind Advisory | OUN | 40 hr |
| Apr 13, 3:19 PM CDT | Freeze Watch | OUN | 30 hr |
| Apr 14, 3:55 PM CDT | Freeze Warning | OUN | 18 hr |
| Apr 15, 3:10 AM CDT | Freeze Warning | OUN | 30 hr |
| Apr 15, 3:15 AM CDT | Fire Weather Watch | OUN | 13 hr |
| Apr 15, 4:33 PM CDT | Red Flag Warning | OUN | 55 hr |
| Apr 17, 3:51 AM CDT | Wind Advisory | OUN | 16 hr |
| Apr 17, 9:52 PM CDT | Wind Advisory | OUN | 21 hr |
| Apr 18, 4:06 AM CDT | Red Flag Warning | OUN | 14 hr |
| May 1, 1:48 AM CDT | Special Weather Statement | OUN | 57 min |
| May 1, 5:07 PM CDT | Mesoscale Discussion | SPC | 83 min |
| May 2, 11:36 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 2, 12:59 PM CDT | Tornado Watch | SPC | 9 hr |
| May 2, 3:24 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 2, 6:10 PM CDT | Mesoscale Discussion | SPC | 95 min |
| May 11, 3:20 AM CDT | Wind Advisory | OUN | 16 hr |
| May 13, 9:00 AM CDT | Special Weather Statement | OUN | 30 min |
| May 14, 3:10 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 14, 4:39 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 14, 7:47 PM CDT | Severe Thunderstorm Warning | OUN | 58 min |
| May 14, 8:05 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 18, 3:35 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 18, 9:15 PM CDT | Severe Thunderstorm Warning | OUN | 45 min |
| May 18, 9:40 PM CDT | Mesoscale Discussion | SPC | 65 min |
| May 18, 10:15 PM CDT | Special Weather Statement | OUN | 30 min |
| May 18, 10:33 PM CDT | Severe Thunderstorm Warning | OUN | 42 min |
| May 19, 12:39 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 19, 2:30 PM CDT | Severe Thunderstorm Watch | SPC | 11 hr |
| May 19, 6:11 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 19, 6:40 PM CDT | Severe Thunderstorm Warning | OUN | 50 min |
| May 19, 7:20 PM CDT | Special Weather Statement | OUN | 25 min |
| May 23, 7:38 PM CDT | Special Weather Statement | OUN | 37 min |
| May 23, 8:44 PM CDT | Special Weather Statement | OUN | 31 min |
| May 23, 8:58 PM CDT | Areal Flood Advisory | OUN | 3 hr |
| May 23, 9:15 PM CDT | Special Weather Statement | OUN | 30 min |
| May 23, 9:35 PM CDT | Severe Thunderstorm Warning | OUN | 25 min |
| May 23, 9:59 PM CDT | Severe Thunderstorm Warning | OUN | 46 min |
| May 23, 10:10 PM CDT | Flash Flood Warning | OUN | 4 hr |
| May 24, 1:19 AM CDT | Special Weather Statement | OUN | 26 min |
| May 24, 2:59 AM CDT | Areal Flood Warning | OUN | 3 hr |
| May 24, 6:14 PM CDT | Special Weather Statement | OUN | 31 min |
| May 24, 7:15 PM CDT | Special Weather Statement | OUN | 30 min |
| May 25, 2:17 AM CDT | Special Weather Statement | OUN | 43 min |
| May 25, 4:27 AM CDT | Special Weather Statement | OUN | 33 min |
| May 25, 5:00 AM CDT | Severe Thunderstorm Warning | OUN | 30 min |
| May 25, 5:21 AM CDT | Special Weather Statement | OUN | 24 min |
| May 25, 5:31 AM CDT | Severe Thunderstorm Warning | OUN | 44 min |
| May 25, 6:06 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| May 29, 1:55 PM CDT | Mesoscale Discussion | SPC | 65 min |
| May 29, 2:19 PM CDT | Tornado Watch | SPC | 8 hr |
| May 29, 5:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 29, 7:43 PM CDT | Severe Thunderstorm Warning | OUN | 47 min |
| May 29, 8:21 PM CDT | Severe Thunderstorm Warning | OUN | 39 min |
| May 29, 9:10 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 29, 9:11 PM CDT | Severe Thunderstorm Warning | OUN | 49 min |
| May 29, 9:32 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 29, 10:30 PM CDT | Severe Thunderstorm Warning | OUN | 45 min |
| May 29, 11:00 PM CDT | Severe Thunderstorm Warning | OUN | 45 min |
| May 30, 8:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| May 30, 9:14 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 30, 10:40 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 30, 11:22 PM CDT | Severe Thunderstorm Warning | OUN | 38 min |
| May 30, 11:50 PM CDT | Tornado Warning | OUN | 40 min |
| May 30, 11:56 PM CDT | Severe Thunderstorm Warning | OUN | 64 min |
| Jun 7, 1:58 AM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 7, 2:25 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 7, 3:05 AM CDT | Severe Thunderstorm Warning | OUN | 25 min |
| Jun 7, 3:58 AM CDT | Special Weather Statement | OUN | 32 min |
| Jun 7, 4:20 AM CDT | Severe Thunderstorm Warning | OUN | 25 min |
| Jun 7, 4:35 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Jun 7, 4:43 AM CDT | Severe Thunderstorm Warning | OUN | 32 min |
| Jun 7, 5:09 AM CDT | Special Weather Statement | OUN | 36 min |
| Jun 7, 5:32 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| Jun 7, 5:41 AM CDT | Special Weather Statement | OUN | 34 min |
| Jun 11, 6:11 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 11, 7:41 PM CDT | Severe Thunderstorm Warning | OUN | 22 min |
| Jun 12, 12:33 AM CDT | Mesoscale Discussion | SPC | 117 min |
| Jun 19, 11:41 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 20, 2:09 AM CDT | Special Weather Statement | OUN | 51 min |
| Jun 22, 5:14 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 22, 6:22 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 22, 7:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 22, 8:12 PM CDT | Severe Thunderstorm Warning | OUN | 48 min |
| Jun 22, 8:56 PM CDT | Severe Thunderstorm Warning | OUN | 49 min |
| Jun 22, 9:07 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jun 22, 9:39 PM CDT | Severe Thunderstorm Warning | OUN | 51 min |
| Jun 23, 9:32 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 23, 9:52 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 24, 1:13 AM CDT | Severe Thunderstorm Warning | OUN | 47 min |
| Jun 24, 1:25 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Jun 24, 1:49 AM CDT | Severe Thunderstorm Warning | OUN | 41 min |
| Jun 24, 2:24 AM CDT | Severe Thunderstorm Warning | OUN | 51 min |
| Jun 24, 7:17 AM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 24, 8:23 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| Jun 24, 10:08 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 24, 11:53 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Jun 24, 11:54 PM CDT | Severe Thunderstorm Warning | OUN | 51 min |
| Jun 25, 12:41 AM CDT | Severe Thunderstorm Warning | OUN | 49 min |
| Jun 30, 3:50 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 30, 4:10 PM CDT | Severe Thunderstorm Warning | OUN | 50 min |
| Jun 30, 4:54 PM CDT | Severe Thunderstorm Warning | OUN | 66 min |
| Jul 12, 5:37 PM CDT | Severe Thunderstorm Warning | OUN | 23 min |
| Jul 12, 5:58 PM CDT | Severe Thunderstorm Warning | OUN | 36 min |
| Jul 17, 10:30 PM CDT | Severe Thunderstorm Warning | OUN | 45 min |
| Jul 17, 11:18 PM CDT | Severe Thunderstorm Warning | OUN | 42 min |
| Jul 17, 11:53 PM CDT | Areal Flood Advisory | OUN | 112 min |
| Jul 18, 4:59 PM CDT | Heat Advisory | OUN | 52 hr |
| Jul 19, 2:38 PM CDT | Excessive Heat Warning | OUN | 6 hr |
| Jul 19, 2:38 PM CDT | Heat Advisory | OUN | 45 hr |
| Jul 19, 5:42 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 28, 2:43 AM CDT | Mesoscale Discussion | SPC | 92 min |
| Jul 28, 3:20 AM CDT | Special Weather Statement | OUN | 25 min |
| Jul 28, 11:10 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 29, 1:59 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 29, 2:43 AM CDT | Severe Thunderstorm Warning | OUN | 47 min |
| Jul 29, 3:23 AM CDT | Severe Thunderstorm Warning | OUN | 52 min |
| Jul 29, 9:44 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Jul 29, 10:04 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 29, 11:49 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Jul 30, 12:00 AM CDT | Severe Thunderstorm Warning | OUN | 45 min |
| Jul 30, 12:17 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 30, 8:17 PM CDT | Severe Thunderstorm Warning | OUN | 43 min |
| Jul 30, 8:44 PM CDT | Severe Thunderstorm Warning | OUN | 31 min |
| Jul 30, 9:15 PM CDT | Severe Thunderstorm Warning | OUN | 45 min |
| Aug 8, 3:02 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Aug 9, 6:20 PM CDT | Special Weather Statement | OUN | 25 min |
| Aug 10, 3:58 PM CDT | Special Weather Statement | OUN | 32 min |
| Aug 10, 4:56 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 14, 7:26 AM CDT | Special Weather Statement | OUN | 34 min |
| Aug 16, 1:47 PM CDT | Special Weather Statement | OUN | 28 min |
| Oct 5, 8:13 AM CDT | Dense Fog Advisory | OUN | 107 min |
| Oct 6, 2:48 PM CDT | Flood Watch | OUN | 72 hr |
| Oct 8, 12:04 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| Oct 8, 11:34 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| Oct 8, 2:35 PM CDT | Areal Flood Advisory | OUN | 4 hr |
| Oct 9, 7:30 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| Oct 10, 2:21 AM CDT | River Flood Warning | OUN | 11 hr |
| Oct 13, 3:48 PM CDT | Freeze Watch | OUN | 23 hr |
| Oct 14, 9:27 AM CDT | Wind Advisory | OUN | 6 hr |
| Oct 14, 2:52 PM CDT | Freeze Warning | OUN | 19 hr |
| Oct 15, 2:55 PM CDT | Freeze Warning | OUN | 18 hr |
| Nov 7, 3:43 PM CST | Freeze Watch | OUN | 12 hr |
| Nov 7, 3:43 PM CST | Freeze Watch | OUN | 36 hr |
| Nov 8, 4:05 AM CST | Freeze Warning | OUN | 29 hr |
| Nov 8, 4:36 PM CST | Freeze Warning | OUN | 41 hr |
| Nov 11, 3:22 AM CST | Winter Weather Advisory | OUN | 33 hr |
| Nov 17, 6:36 PM CST | Winter Weather Advisory | OUN | 14 hr |
| Nov 24, 2:59 PM CST | Wind Advisory | OUN | 27 hr |
| Nov 30, 3:20 AM CST | Dense Fog Advisory | OUN | 7 hr |
| Nov 30, 11:37 AM CST | Dense Fog Advisory | OUN | 2 hr |
| Nov 30, 3:57 PM CST | Dense Fog Advisory | OUN | 3 hr |
| Dec 5, 3:36 AM CST | Winter Storm Watch | OUN | 56 hr |
| Dec 11, 1:13 PM CST | High Wind Watch | OUN | 26 hr |
| Dec 12, 2:52 PM CST | High Wind Warning | OUN | 29 hr |
| Dec 19, 8:05 AM CST | Dense Fog Advisory | OUN | 3 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 | 40 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 12 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 37 |
| Special Weather Statement | 26 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 1 |
| River Flood Warning | 1 |
| Flood Watch | 1 |
| Areal Flood Advisory | 11 |
| Winter | |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 5 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 2 |
| Cold | |
| Freeze Warning | 9 |
| Freeze Watch | 6 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 12 |
| Fire | |
| Red Flag Warning | 15 |
| Fire Weather Watch | 12 |
| Fog and smoke | |
| Dense Fog Advisory | 8 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.