Alert archive / Mississippi / Grenada County
Weather alerts in Grenada County, Mississippi, 2026
109 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Grenada County and its neighbors
Each county as a circle sized by its count in 2026. Tap one for its archive.
- Alerts
- 109
- Warnings
- 23
- Watches
- 14
- Advisories
- 29
- Busiest month
- August20 alerts
- Busiest day
- August 20, 20267 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Grenada County, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 14 | 8 | 43% | 10 | 60% | 23 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 Jackson, MS: tornado warnings | 42 | 26 | 38% | 74 | 78% | 23 min |
| NWS Jackson, MS: severe thunderstorm warnings | 407 | 270 | 34% | 674 | 80% | 24 min |
| NWS Jackson, MS: flash flood warnings | 56 | 29 | 48% | 71 | 86% | 60 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, 10:37 AM CST | Dense Fog Advisory | JAN | 23 hr |
| Jan 9, 3:54 AM CST | Special Weather Statement | JAN | 66 min |
| Jan 21, 12:37 PM CST | Winter Storm Watch | JAN | 63 hr |
| Jan 22, 12:39 PM CST | Ice Storm Warning | JAN | 72 hr |
| Jan 23, 11:51 AM CST | Extreme Cold Watch | JAN | 23 hr |
| Jan 24, 8:53 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Jan 24, 10:55 AM CST | Extreme Cold Warning | JAN | 71 hr |
| Jan 24, 12:17 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Jan 28, 11:12 AM CST | Extreme Cold Watch | JAN | 24 hr |
| Jan 29, 11:11 AM CST | Extreme Cold Warning | JAN | 55 hr |
| Jan 29, 1:49 PM CST | Cold Weather Advisory | JAN | 70 hr |
| Feb 26, 12:36 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 26, 5:23 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 26, 8:50 PM CST | Severe Thunderstorm Warning | JAN | 55 min |
| Mar 4, 6:28 PM CST | Special Weather Statement | JAN | 62 min |
| Mar 7, 12:54 PM CST | Mesoscale Discussion | SPC | 66 min |
| Mar 7, 1:16 PM CST | Severe Thunderstorm Watch | SPC | 8 hr |
| Mar 9, 12:57 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 9, 4:34 PM CDT | Special Weather Statement | JAN | 56 min |
| Mar 9, 4:56 PM CDT | Severe Thunderstorm Warning | JAN | 64 min |
| Mar 11, 10:15 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Mar 14, 1:34 PM CDT | Wind Advisory | JAN | 53 hr |
| Mar 15, 3:06 AM CDT | Freeze Watch | JAN | 23 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, 8:28 PM CDT | Severe Thunderstorm Warning | JAN | 62 min |
| Mar 15, 9:04 PM CDT | Severe Thunderstorm Warning | JAN | 41 min |
| Mar 16, 2:32 AM CDT | Freeze Warning | JAN | 31 hr |
| Mar 26, 2:10 PM CDT | Fire Weather Watch | JAN | 21 hr |
| Mar 27, 11:22 AM CDT | Red Flag Warning | JAN | 32 hr |
| Mar 31, 5:44 PM CDT | Special Weather Statement | JAN | 61 min |
| Mar 31, 6:05 PM CDT | Severe Thunderstorm Warning | JAN | 40 min |
| Apr 4, 12:14 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 4, 5:40 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 24, 2:36 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Apr 27, 3:24 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 27, 6:23 PM CDT | Special Weather Statement | JAN | 22 min |
| Apr 27, 6:35 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Apr 28, 10:50 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Apr 28, 1:54 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 28, 8:30 PM CDT | Severe Thunderstorm Warning | JAN | 60 min |
| Apr 28, 9:24 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 28, 9:41 PM CDT | Tornado Watch | SPC | 4 hr |
| May 10, 1:24 AM CDT | Dense Fog Advisory | JAN | 8 hr |
| May 10, 2:54 PM CDT | Mesoscale Discussion | SPC | 96 min |
| May 10, 5:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 10, 9:38 PM CDT | Special Weather Statement | JAN | 67 min |
| May 11, 6:08 AM CDT | Dense Fog Advisory | JAN | 3 hr |
| May 23, 3:03 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 1, 11:26 AM CDT | Severe Thunderstorm Watch | SPC | 12 hr |
| Jun 1, 5:16 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jun 1, 7:52 PM CDT | Special Weather Statement | JAN | 38 min |
| Jun 2, 2:44 PM CDT | Special Weather Statement | JAN | 46 min |
| Jun 19, 4:06 PM CDT | Special Weather Statement | JAN | 54 min |
| Jun 22, 11:01 AM CDT | Mesoscale Discussion | SPC | 119 min |
| Jun 22, 11:09 AM CDT | Severe Thunderstorm Warning | JAN | 42 min |
| Jun 24, 11:34 PM CDT | Special Weather Statement | JAN | 41 min |
| Jun 25, 12:23 AM CDT | Special Weather Statement | JAN | 67 min |
| Jun 27, 12:15 PM CDT | Heat Advisory | JAN | 4 days |
| Jul 1, 1:52 PM CDT | Heat Advisory | JAN | 3 days |
| 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, 5:32 PM CDT | Special Weather Statement | JAN | 43 min |
| Jul 1, 6:05 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jul 1, 6:44 PM CDT | Severe Thunderstorm Warning | JAN | 39 min |
| Jul 17, 11:57 PM CDT | Heat Advisory | JAN | 45 hr |
| Jul 19, 12:19 PM CDT | Heat Advisory | JAN | 57 hr |
| Jul 19, 12:19 PM CDT | Extreme Heat Warning | JAN | 57 hr |
| Jul 21, 1:50 PM CDT | Heat Advisory | JAN | 29 hr |
| Jul 25, 11:36 AM CDT | Heat Advisory | JAN | 57 hr |
| Jul 26, 12:01 PM CDT | Extreme Heat Warning | JAN | 57 hr |
| Jul 28, 2:00 PM CDT | Extreme Heat Warning | JAN | 31 hr |
| Jul 30, 10:56 AM CDT | Heat Advisory | JAN | 32 hr |
| Aug 10, 7:22 PM CDT | Special Weather Statement | JAN | 23 min |
| Aug 11, 12:16 PM CDT | Heat Advisory | JAN | 6 days |
| Aug 16, 2:15 AM CDT | Extreme Heat Warning | JAN | 42 hr |
| Aug 17, 1:00 PM CDT | Heat Advisory | JAN | 56 hr |
| Aug 18, 10:29 AM CDT | Heat Advisory | JAN | 6 hr |
| Aug 19, 11:14 AM CDT | Heat Advisory | JAN | 33 hr |
| Aug 20, 12:46 PM CDT | Heat Advisory | JAN | 31 hr |
| Aug 20, 3:33 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Aug 20, 3:55 PM CDT | Special Weather Statement | JAN | 65 min |
| Aug 20, 4:23 PM CDT | Severe Thunderstorm Warning | JAN | 67 min |
| Aug 20, 5:08 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 20, 5:23 PM CDT | Severe Thunderstorm Warning | JAN | 67 min |
| Aug 20, 6:24 PM CDT | Severe Thunderstorm Warning | JAN | 81 min |
| Aug 20, 7:36 PM CDT | Severe Thunderstorm Warning | JAN | 54 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, 6:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Aug 22, 8:01 PM CDT | Severe Thunderstorm Warning | JAN | 29 min |
| Aug 26, 8:29 PM CDT | Special Weather Statement | JAN | 46 min |
| Aug 31, 12:17 PM CDT | Heat Advisory | JAN | 31 hr |
| Sep 1, 11:04 AM CDT | Heat Advisory | JAN | 32 hr |
| Sep 2, 10:27 AM CDT | Heat Advisory | JAN | 33 hr |
| Sep 3, 12:38 PM CDT | Heat Advisory | JAN | 30 hr |
| Sep 4, 12:07 PM CDT | Heat Advisory | JAN | 55 hr |
| Sep 6, 12:24 PM CDT | Heat Advisory | JAN | 31 hr |
| Sep 6, 1:28 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 6, 3:30 PM CDT | Special Weather Statement | JAN | 45 min |
| Sep 7, 12:00 PM CDT | Heat Advisory | JAN | 31 hr |
| Sep 12, 1:06 PM CDT | Special Weather Statement | JAN | 54 min |
| Sep 12, 1:28 PM CDT | Severe Thunderstorm Warning | JAN | 62 min |
| Sep 12, 1:32 PM CDT | Heat Advisory | JAN | 29 hr |
| Sep 13, 12:04 PM CDT | Heat Advisory | JAN | 31 hr |
| Sep 14, 12:57 PM CDT | Heat Advisory | JAN | 30 hr |
| Sep 15, 10:53 AM CDT | Heat Advisory | JAN | 32 hr |
| Sep 18, 12:55 PM CDT | Heat Advisory | JAN | 30 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 | 14 |
| Severe Thunderstorm Watch | 6 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 26 |
| Special Weather Statement | 17 |
| Winter | |
| Ice Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Heat | |
| Extreme Heat Warning | 4 |
| Heat Advisory | 24 |
| Cold | |
| Extreme Cold Warning | 2 |
| Freeze Warning | 1 |
| Extreme Cold Watch | 2 |
| Freeze Watch | 1 |
| Cold Weather Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
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.