Alert archive / Mississippi / Oktibbeha County
Weather alerts in Oktibbeha County, Mississippi, 2021
108 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Oktibbeha County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 108
- Warnings
- 31
- Watches
- 19
- Advisories
- 16
- Busiest month
- March18 alerts
- Busiest day
- May 4, 20216 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Oktibbeha County, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 16 | 10 | 38% | 9 | 100% | 26 min |
| Flash flood warnings | 4 | 2 | 50% | 1 | 0% |
Each office's whole area, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Jackson, MS: tornado warnings | 62 | 22 | 65% | 76 | 61% | 21 min |
| NWS Jackson, MS: severe thunderstorm warnings | 296 | 169 | 43% | 530 | 86% | 28 min |
| NWS Jackson, MS: flash flood warnings | 110 | 66 | 40% | 199 | 83% | 83 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, 3:52 AM CST | Winter Weather Advisory | JAN | 32 hr |
| Jan 13, 6:15 AM CST | Winter Weather Advisory | JAN | 6 hr |
| Jan 25, 4:49 PM CST | Mesoscale Discussion | SPC | 86 min |
| Jan 25, 5:52 PM CST | Tornado Watch | SPC | 7 hr |
| Jan 25, 9:19 PM CST | Mesoscale Discussion | SPC | 116 min |
| Feb 12, 4:09 PM CST | Winter Storm Watch | JAN | 23 hr |
| Feb 12, 9:06 PM CST | Winter Weather Advisory | JAN | 13 hr |
| Feb 13, 3:13 PM CST | Winter Storm Warning | JAN | 48 hr |
| Feb 14, 9:09 PM CST | Hard Freeze Warning | JAN | 63 hr |
| Feb 14, 9:41 PM CST | Wind Chill Advisory | JAN | 35 hr |
| Feb 15, 3:09 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 15, 9:28 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 16, 2:50 PM CST | Winter Storm Warning | JAN | 39 hr |
| Feb 17, 10:53 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 18, 6:25 AM CST | Winter Weather Advisory | JAN | 14 hr |
| Feb 18, 9:24 AM CST | Hard Freeze Warning | JAN | 27 hr |
| Feb 19, 3:45 AM CST | Hard Freeze Warning | JAN | 29 hr |
| Feb 26, 2:13 PM CST | Flash Flood Watch | JAN | 14 hr |
| Mar 15, 11:44 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Mar 17, 10:56 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 17, 11:36 AM CDT | Tornado Watch | SPC | 7 hr |
| Mar 17, 2:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Mar 17, 6:42 PM CDT | Severe Thunderstorm Warning | JAN | 76 min |
| Mar 17, 6:48 PM CDT | Tornado Watch | SPC | 8 hr |
| Mar 24, 12:10 PM CDT | Wind Advisory | JAN | 26 hr |
| Mar 25, 4:24 AM CDT | Severe Thunderstorm Warning | JAN | 36 min |
| Mar 25, 10:58 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Mar 25, 11:26 AM CDT | Tornado Watch | SPC | 9 hr |
| Mar 25, 1:24 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 27, 3:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Mar 27, 4:20 PM CDT | Severe Thunderstorm Warning | JAN | 55 min |
| Mar 27, 4:32 PM CDT | Special Weather Statement | JAN | 28 min |
| Mar 27, 9:01 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 28, 3:24 AM CDT | Special Weather Statement | JAN | 36 min |
| Mar 30, 9:20 PM CDT | Special Weather Statement | JAN | 40 min |
| Mar 31, 2:26 PM CDT | Freeze Watch | JAN | 20 hr |
| Apr 1, 10:41 AM CDT | Freeze Warning | JAN | 22 hr |
| Apr 2, 9:51 AM CDT | Freeze Warning | JAN | 22 hr |
| Apr 7, 5:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 7, 8:52 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 9, 11:44 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 9, 3:42 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 9, 6:14 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 9, 8:14 PM CDT | Severe Thunderstorm Warning | JAN | 46 min |
| May 2, 4:46 PM CDT | Tornado Watch | SPC | 5 hr |
| May 2, 6:51 PM CDT | Mesoscale Discussion | SPC | 54 min |
| May 3, 11:47 AM CDT | Severe Thunderstorm Watch | SPC | 10 hr |
| May 4, 9:03 AM CDT | Mesoscale Discussion | SPC | 117 min |
| May 4, 9:18 AM CDT | Tornado Watch | SPC | 7 hr |
| May 4, 10:02 AM CDT | Severe Thunderstorm Warning | JAN | 43 min |
| May 4, 2:17 PM CDT | Mesoscale Discussion | SPC | 88 min |
| May 4, 3:03 PM CDT | Severe Thunderstorm Warning | JAN | 57 min |
| May 4, 3:03 PM CDT | Mesoscale Discussion | SPC | 117 min |
| May 6, 6:30 PM CDT | Severe Thunderstorm Warning | JAN | 60 min |
| May 9, 7:29 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 9, 9:32 PM CDT | Mesoscale Discussion | SPC | 118 min |
| May 9, 10:34 PM CDT | Flash Flood Warning | JAN | 78 min |
| Jun 2, 2:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jun 8, 9:58 PM CDT | Severe Thunderstorm Warning | JAN | 62 min |
| Jun 9, 4:03 AM CDT | Flash Flood Watch | JAN | 39 hr |
| Jun 9, 12:06 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 10, 5:06 AM CDT | Flash Flood Warning | JAN | 3 hr |
| Jun 10, 9:46 AM CDT | Areal Flood Warning | JAN | 6 hr |
| Jun 13, 10:45 AM CDT | Mesoscale Discussion | SPC | 60 min |
| Jun 13, 12:22 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 13, 3:20 PM CDT | Special Weather Statement | JAN | 40 min |
| Jun 13, 5:13 PM CDT | Special Weather Statement | JAN | 32 min |
| Jun 29, 1:18 PM CDT | Special Weather Statement | JAN | 27 min |
| Jul 16, 2:37 PM CDT | Severe Thunderstorm Warning | JAN | 38 min |
| Jul 23, 2:40 PM CDT | Heat Advisory | JAN | 28 hr |
| Jul 24, 2:55 PM CDT | Heat Advisory | JAN | 28 hr |
| Jul 26, 2:54 PM CDT | Heat Advisory | JAN | 28 hr |
| Jul 26, 7:24 PM CDT | Special Weather Statement | JAN | 66 min |
| Jul 27, 2:54 PM CDT | Excessive Heat Warning | JAN | 4 days |
| Jul 27, 2:54 PM CDT | Heat Advisory | JAN | 5 days |
| Aug 1, 11:16 AM CDT | Severe Thunderstorm Warning | JAN | 59 min |
| Aug 1, 12:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 9, 2:26 PM CDT | Heat Advisory | JAN | 3 days |
| Aug 11, 5:22 PM CDT | Special Weather Statement | JAN | 38 min |
| Aug 14, 8:43 PM CDT | Special Weather Statement | JAN | 47 min |
| Aug 19, 3:25 PM CDT | Severe Thunderstorm Warning | JAN | 35 min |
| Aug 19, 3:50 PM CDT | Flash Flood Warning | JAN | 80 min |
| Aug 28, 3:36 AM CDT | Flash Flood Watch | JAN | 66 hr |
| Aug 28, 10:00 AM CDT | Tropical Storm Warning | JAN | 54 hr |
| Aug 29, 4:00 PM CDT | Wind Advisory | JAN | 30 hr |
| Aug 30, 3:13 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 1, 3:25 PM CDT | Severe Thunderstorm Warning | JAN | 50 min |
| Sep 5, 8:16 PM CDT | Special Weather Statement | JAN | 44 min |
| Oct 4, 2:54 AM CDT | Dense Fog Advisory | JAN | 6 hr |
| Oct 5, 12:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 5, 5:45 PM CDT | Severe Thunderstorm Warning | JAN | 45 min |
| Oct 5, 6:29 PM CDT | Severe Thunderstorm Warning | JAN | 46 min |
| Oct 5, 7:14 PM CDT | Severe Thunderstorm Warning | JAN | 46 min |
| Oct 5, 7:15 PM CDT | Flash Flood Warning | JAN | 103 min |
| Nov 6, 2:29 AM CDT | Dense Fog Advisory | JAN | 8 hr |
| Nov 11, 9:29 PM CST | Dense Fog Advisory | JAN | 12 hr |
| Nov 12, 2:59 PM CST | Freeze Watch | JAN | 12 hr |
| Nov 13, 3:17 AM CST | Freeze Warning | JAN | 29 hr |
| Dec 4, 3:02 PM CST | Dense Fog Advisory | JAN | 18 hr |
| Dec 6, 7:34 AM CST | Special Weather Statement | JAN | 41 min |
| Dec 6, 7:43 AM CST | Severe Thunderstorm Warning | JAN | 47 min |
| Dec 11, 3:15 AM CST | Mesoscale Discussion | SPC | 90 min |
| Dec 11, 3:41 AM CST | Tornado Watch | SPC | 6 hr |
| Dec 11, 5:56 AM CST | Special Weather Statement | JAN | 79 min |
| Dec 11, 6:15 AM CST | Mesoscale Discussion | SPC | 90 min |
| Dec 29, 10:44 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 29, 12:05 PM CST | Tornado Watch | SPC | 7 hr |
| Dec 29, 4:38 PM CST | Mesoscale Discussion | SPC | 2 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 | 16 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 9 |
| Mesoscale Discussion | 30 |
| Special Weather Statement | 12 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 4 |
| Flash Flood Watch | 3 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 4 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 5 |
| Cold | |
| Freeze Warning | 3 |
| Hard Freeze Warning | 3 |
| Freeze Watch | 2 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
| Tropical | |
| Tropical Storm Warning | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20202022
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.