Alert archive / Mississippi / Union County
Weather alerts in Union County, Mississippi, 2026
120 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Union County and its neighbors
Each county as a circle sized by its count in 2026. Tap one for its archive.
- Alerts
- 120
- Warnings
- 33
- Watches
- 14
- Advisories
- 32
- Busiest month
- March24 alerts
- Busiest day
- April 29, 202610 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Union County, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 22 | 16 | 27% | 2 | 100% | 20 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Memphis, TN: tornado warnings | 21 | 3 | 86% | 10 | 60% | 21 min |
| NWS Memphis, TN: severe thunderstorm warnings | 237 | 165 | 30% | 371 | 84% | 20 min |
| NWS Memphis, TN: flash flood warnings | 27 | 19 | 30% | 50 | 84% | 54 min |
An office's figures cover every county it serves, including across state lines.
The year is still running; reports filed late and damage surveys can still change these figures.
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, 7:27 PM CST | Dense Fog Advisory | MEG | 16 hr |
| Jan 7, 8:55 PM CST | Dense Fog Advisory | MEG | 11 hr |
| Jan 21, 1:43 AM CST | Winter Storm Watch | MEG | 34 hr |
| Jan 21, 8:49 PM CST | Dense Fog Advisory | MEG | 12 hr |
| Jan 22, 11:36 AM CST | Ice Storm Warning | MEG | 3 days |
| Jan 23, 11:56 AM CST | Extreme Cold Watch | MEG | 22 hr |
| Jan 24, 5:54 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 24, 10:07 AM CST | Extreme Cold Warning | MEG | 71 hr |
| Jan 24, 12:17 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Jan 28, 4:15 AM CST | Freezing Fog Advisory | MEG | 4 hr |
| Jan 29, 12:01 PM CST | Cold Weather Advisory | MEG | 70 hr |
| Feb 3, 2:56 PM CST | Dense Fog Advisory | MEG | 6 hr |
| Feb 26, 12:36 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 26, 5:15 PM CST | Special Weather Statement | MEG | 30 min |
| Feb 26, 5:23 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 26, 5:41 PM CST | Severe Thunderstorm Warning | MEG | 22 min |
| Feb 26, 5:48 PM CST | Special Weather Statement | MEG | 27 min |
| Feb 26, 8:06 PM CST | Severe Thunderstorm Warning | MEG | 39 min |
| Feb 26, 8:38 PM CST | Special Weather Statement | MEG | 37 min |
| Feb 27, 1:18 AM CST | Dense Fog Advisory | MEG | 8 hr |
| Mar 7, 7:53 AM CST | Severe Thunderstorm Watch | SPC | 8 hr |
| Mar 7, 1:18 PM CST | Special Weather Statement | MEG | 27 min |
| Mar 9, 1:11 AM CDT | Dense Fog Advisory | MEG | 8 hr |
| Mar 9, 12:57 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 9, 3:54 PM CDT | Severe Thunderstorm Warning | MEG | 51 min |
| Mar 9, 4:37 PM CDT | Areal Flood Advisory | MEG | 118 min |
| Mar 9, 5:28 PM CDT | Areal Flood Warning | MEG | 68 min |
| Mar 10, 10:17 AM CDT | River Flood Warning | MEG | 20 hr |
| Mar 11, 10:15 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Mar 14, 10:34 AM CDT | Wind Advisory | MEG | 44 hr |
| Mar 14, 11:02 AM CDT | Freeze Watch | MEG | 16 hr |
| Mar 14, 11:02 AM CDT | Freeze Watch | MEG | 40 hr |
| Mar 15, 2:51 AM CDT | Freeze Warning | MEG | 33 hr |
| Mar 15, 3:27 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Mar 15, 3:57 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 15, 6:43 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 15, 8:24 PM CDT | Severe Thunderstorm Warning | MEG | 51 min |
| Mar 15, 8:34 PM CDT | Severe Thunderstorm Warning | MEG | 41 min |
| Mar 15, 8:56 PM CDT | Severe Thunderstorm Warning | MEG | 49 min |
| Mar 15, 9:08 PM CDT | Severe Thunderstorm Warning | MEG | 37 min |
| Mar 15, 9:27 PM CDT | Severe Thunderstorm Warning | MEG | 48 min |
| Mar 15, 9:41 PM CDT | Severe Thunderstorm Warning | MEG | 64 min |
| Mar 16, 2:55 AM CDT | Freeze Warning | MEG | 32 hr |
| Mar 27, 11:31 AM CDT | Red Flag Warning | MEG | 31 hr |
| Apr 4, 12:14 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 24, 11:35 PM CDT | Dense Fog Advisory | MEG | 9 hr |
| Apr 27, 3:24 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 27, 6:35 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Apr 27, 9:18 PM CDT | Severe Thunderstorm Warning | MEG | 42 min |
| Apr 27, 9:48 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 28, 2:18 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Apr 28, 2:32 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 28, 4:57 PM CDT | Severe Thunderstorm Warning | MEG | 48 min |
| Apr 28, 5:19 PM CDT | Severe Thunderstorm Warning | MEG | 56 min |
| Apr 28, 9:24 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 28, 9:41 PM CDT | Tornado Watch | SPC | 4 hr |
| Apr 28, 10:25 PM CDT | Severe Thunderstorm Warning | MEG | 50 min |
| Apr 28, 10:52 PM CDT | Severe Thunderstorm Warning | MEG | 53 min |
| Apr 28, 11:10 PM CDT | Severe Thunderstorm Warning | MEG | 65 min |
| Apr 28, 11:16 PM CDT | Areal Flood Advisory | MEG | 4 hr |
| Apr 29, 3:24 AM CDT | Special Weather Statement | MEG | 36 min |
| Apr 29, 3:58 AM CDT | Special Weather Statement | MEG | 32 min |
| Apr 29, 4:28 AM CDT | Severe Thunderstorm Warning | MEG | 47 min |
| Apr 29, 5:03 AM CDT | Severe Thunderstorm Warning | MEG | 23 min |
| Apr 29, 8:48 PM CDT | River Flood Warning | MEG | 5 hr |
| May 6, 12:54 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 6, 10:53 AM CDT | Areal Flood Advisory | MEG | 112 min |
| May 10, 3:50 AM CDT | Dense Fog Advisory | MEG | 6 hr |
| May 22, 12:26 AM CDT | Areal Flood Advisory | MEG | 3 hr |
| May 22, 9:00 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 31, 4:18 AM CDT | Dense Fog Advisory | MEG | 5 hr |
| Jun 1, 9:30 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 1, 11:26 AM CDT | Severe Thunderstorm Watch | SPC | 12 hr |
| Jun 1, 12:23 PM CDT | Special Weather Statement | MEG | 37 min |
| Jun 12, 1:38 PM CDT | Areal Flood Advisory | MEG | 3 hr |
| Jun 22, 11:01 AM CDT | Mesoscale Discussion | SPC | 119 min |
| Jun 27, 11:54 AM CDT | Heat Advisory | MEG | 7 days |
| Jun 27, 11:54 AM CDT | Extreme Heat Watch | MEG | 71 hr |
| Jul 1, 2:33 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jul 1, 3:06 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 1, 4:59 PM CDT | Special Weather Statement | MEG | 46 min |
| Jul 1, 5:38 PM CDT | Special Weather Statement | MEG | 37 min |
| Jul 1, 6:05 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jul 3, 1:50 PM CDT | Special Weather Statement | MEG | 25 min |
| Jul 3, 2:55 PM CDT | Special Weather Statement | MEG | 20 min |
| Jul 4, 4:32 PM CDT | Special Weather Statement | MEG | 28 min |
| Jul 4, 4:55 PM CDT | Special Weather Statement | MEG | 35 min |
| Jul 4, 5:28 PM CDT | Areal Flood Advisory | MEG | 2 hr |
| Jul 6, 3:55 AM CDT | Dense Fog Advisory | MEG | 4 hr |
| Jul 11, 3:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 19, 11:47 AM CDT | Heat Advisory | MEG | 57 hr |
| Jul 20, 5:42 PM CDT | Areal Flood Advisory | MEG | 112 min |
| Jul 25, 11:17 AM CDT | Heat Advisory | MEG | 35 hr |
| Jul 25, 11:17 AM CDT | Extreme Heat Warning | MEG | 3 days |
| Jul 28, 9:07 PM CDT | Heat Advisory | MEG | 23 hr |
| Jul 31, 4:08 PM CDT | Special Weather Statement | MEG | 37 min |
| Jul 31, 4:34 PM CDT | Areal Flood Advisory | MEG | 3 hr |
| Aug 11, 9:59 AM CDT | Heat Advisory | MEG | 71 hr |
| Aug 12, 4:06 AM CDT | Extreme Heat Warning | MEG | 5 days |
| Aug 16, 7:58 PM CDT | Extreme Heat Warning | MEG | 24 hr |
| Aug 17, 5:35 PM CDT | Severe Thunderstorm Warning | MEG | 55 min |
| Aug 17, 6:04 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Aug 17, 6:07 PM CDT | Areal Flood Advisory | MEG | 3 hr |
| Aug 17, 6:28 PM CDT | Severe Thunderstorm Warning | MEG | 47 min |
| Aug 18, 11:41 AM CDT | Heat Advisory | MEG | 12 hr |
| Aug 18, 11:31 PM CDT | Heat Advisory | MEG | 20 hr |
| Aug 19, 11:25 AM CDT | Heat Advisory | MEG | 33 hr |
| Aug 20, 3:33 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Aug 20, 3:48 PM CDT | Severe Thunderstorm Warning | MEG | 42 min |
| Aug 20, 4:27 PM CDT | Severe Thunderstorm Warning | MEG | 48 min |
| Aug 22, 1:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 22, 2:14 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 22, 5:57 PM CDT | Severe Thunderstorm Warning | MEG | 48 min |
| Aug 22, 6:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Sep 1, 10:43 AM CDT | Heat Advisory | MEG | 5 days |
| Sep 6, 1:28 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 6, 3:28 PM CDT | Special Weather Statement | MEG | 32 min |
| Sep 11, 3:24 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 12, 8:44 AM CDT | Special Weather Statement | MEG | 31 min |
| Sep 13, 12:25 PM CDT | Heat Advisory | MEG | 6 days |
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 | 22 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 25 |
| Special Weather Statement | 16 |
| Flooding | |
| Areal Flood Warning | 1 |
| River Flood Warning | 2 |
| Areal Flood Advisory | 9 |
| Winter | |
| Ice Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Heat | |
| Extreme Heat Warning | 3 |
| Extreme Heat Watch | 1 |
| Heat Advisory | 10 |
| Cold | |
| Extreme Cold Warning | 1 |
| Freeze Warning | 2 |
| Extreme Cold Watch | 1 |
| Freeze Watch | 2 |
| Cold Weather Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 10 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive2025
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.