Alert archive / Mississippi / Grenada County
Weather alerts in Grenada County, Mississippi, 2022
125 weather alerts in 2022, 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 2022. Tap one for its archive.
- Alerts
- 125
- Warnings
- 29
- Watches
- 25
- Advisories
- 34
- Busiest month
- July27 alerts
- Busiest day
- October 12, 20226 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 2 tornado warnings covering Grenada County in 2022 had a tornado report inside them.
Grenada County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 14 | 8 | 43% | 6 | 83% | 29 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Jackson, MS: tornado warnings | 161 | 69 | 57% | 236 | 80% | 22 min |
| NWS Jackson, MS: severe thunderstorm warnings | 417 | 252 | 40% | 784 | 69% | 27 min |
| NWS Jackson, MS: flash flood warnings | 85 | 44 | 48% | 195 | 88% | 85 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 1, 4:17 AM CST | Wind Advisory | JAN | 14 hr |
| Jan 1, 11:37 AM CST | Mesoscale Discussion | SPC | 113 min |
| Jan 1, 1:30 PM CST | Tornado Watch | SPC | 9 hr |
| Jan 1, 1:57 PM CST | Mesoscale Discussion | SPC | 93 min |
| Jan 1, 9:17 PM CST | Special Weather Statement | JAN | 13 min |
| Jan 2, 10:58 AM CST | Winter Weather Advisory | JAN | 13 hr |
| Jan 15, 4:35 AM CST | Winter Weather Advisory | JAN | 31 hr |
| Jan 19, 2:20 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
| Jan 19, 5:18 PM CST | Mesoscale Discussion | SPC | 117 min |
| Feb 2, 2:27 AM CST | Winter Weather Advisory | JAN | 37 hr |
| Feb 14, 1:41 PM CST | Red Flag Warning | JAN | 28 hr |
| Feb 16, 3:38 AM CST | Wind Advisory | JAN | 38 hr |
| Feb 17, 10:05 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 17, 10:49 AM CST | Tornado Watch | SPC | 7 hr |
| Feb 22, 3:54 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 22, 5:16 PM CST | Tornado Watch | SPC | 7 hr |
| Feb 22, 7:55 PM CST | Severe Thunderstorm Warning | JAN | 51 min |
| Mar 10, 2:55 PM CST | Winter Weather Advisory | JAN | 36 hr |
| Mar 11, 3:31 AM CST | Freeze Warning | JAN | 29 hr |
| Mar 11, 3:31 AM CST | Freeze Warning | JAN | 52 hr |
| Mar 11, 3:31 AM CST | Wind Advisory | JAN | 24 hr |
| Mar 21, 2:52 AM CDT | Flood Watch | JAN | 44 hr |
| Mar 21, 12:31 PM CDT | Wind Advisory | JAN | 28 hr |
| Mar 22, 10:40 AM CDT | Tornado Watch | SPC | 8 hr |
| Mar 22, 11:51 AM CDT | Severe Thunderstorm Warning | JAN | 41 min |
| Mar 22, 11:57 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 22, 1:09 PM CDT | Severe Thunderstorm Warning | JAN | 66 min |
| Mar 22, 1:20 PM CDT | Tornado Warning | JAN | 55 min |
| Mar 29, 3:44 AM CDT | Wind Advisory | JAN | 24 hr |
| Mar 30, 3:44 AM CDT | High Wind Warning | JAN | 15 hr |
| Mar 30, 12:16 PM CDT | Tornado Watch | SPC | 9 hr |
| Mar 30, 2:16 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Mar 30, 3:47 PM CDT | Severe Thunderstorm Warning | JAN | 73 min |
| Mar 30, 4:38 PM CDT | Severe Thunderstorm Warning | JAN | 55 min |
| Apr 5, 3:18 AM CDT | Tornado Watch | SPC | 8 hr |
| Apr 11, 4:14 AM CDT | Special Weather Statement | JAN | 61 min |
| Apr 13, 2:48 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 13, 5:00 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Apr 13, 6:29 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Apr 13, 6:52 PM CDT | Severe Thunderstorm Warning | JAN | 38 min |
| Apr 13, 7:25 PM CDT | Severe Thunderstorm Warning | JAN | 80 min |
| Apr 15, 4:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Apr 16, 5:59 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 17, 8:32 AM CDT | Mesoscale Discussion | SPC | 118 min |
| Apr 30, 10:42 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 2, 2:33 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 5, 12:44 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 5, 4:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| May 13, 1:00 PM CDT | Special Weather Statement | JAN | 60 min |
| May 15, 5:09 PM CDT | Mesoscale Discussion | SPC | 66 min |
| May 15, 5:22 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 15, 7:14 PM CDT | Severe Thunderstorm Warning | JAN | 46 min |
| May 25, 9:37 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 25, 6:36 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Jun 8, 3:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jun 8, 5:22 PM CDT | Special Weather Statement | JAN | 53 min |
| Jun 11, 2:07 AM CDT | Dense Fog Advisory | JAN | 7 hr |
| Jun 11, 2:41 PM CDT | Heat Advisory | JAN | 29 hr |
| Jun 12, 1:27 PM CDT | Heat Advisory | JAN | 31 hr |
| Jun 15, 3:12 PM CDT | Heat Advisory | JAN | 3 days |
| Jun 18, 12:33 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 22, 3:07 AM CDT | Heat Advisory | JAN | 41 hr |
| Jun 25, 2:13 PM CDT | Heat Advisory | JAN | 30 hr |
| Jul 4, 8:41 AM CDT | Heat Advisory | JAN | 5 days |
| Jul 6, 4:11 AM CDT | Excessive Heat Warning | JAN | 4 days |
| Jul 9, 2:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jul 9, 3:29 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 9, 5:35 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jul 12, 2:34 PM CDT | Heat Advisory | JAN | 28 hr |
| Jul 13, 12:22 PM CDT | Special Weather Statement | JAN | 38 min |
| Jul 13, 12:45 PM CDT | Severe Thunderstorm Warning | JAN | 45 min |
| Jul 13, 1:24 PM CDT | Severe Thunderstorm Warning | JAN | 51 min |
| Jul 13, 1:49 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 16, 1:55 PM CDT | Heat Advisory | JAN | 29 hr |
| Jul 18, 1:52 PM CDT | Heat Advisory | JAN | 29 hr |
| Jul 19, 11:12 AM CDT | Excessive Heat Warning | JAN | 32 hr |
| Jul 20, 2:05 PM CDT | Heat Advisory | JAN | 31 hr |
| Jul 21, 9:45 AM CDT | Excessive Heat Warning | JAN | 11 hr |
| Jul 21, 3:12 PM CDT | Heat Advisory | JAN | 28 hr |
| Jul 21, 3:20 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 21, 3:58 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 21, 5:37 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jul 22, 2:29 PM CDT | Heat Advisory | JAN | 23 hr |
| Jul 23, 1:58 PM CDT | Heat Advisory | JAN | 29 hr |
| Jul 24, 2:32 PM CDT | Heat Advisory | JAN | 28 hr |
| Jul 25, 2:44 PM CDT | Heat Advisory | JAN | 28 hr |
| Jul 26, 2:49 PM CDT | Heat Advisory | JAN | 28 hr |
| Jul 27, 1:38 PM CDT | Heat Advisory | JAN | 29 hr |
| Jul 28, 2:50 PM CDT | Heat Advisory | JAN | 28 hr |
| Jul 29, 2:24 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 3, 4:55 AM CDT | Heat Advisory | JAN | 14 hr |
| Aug 7, 1:47 PM CDT | Heat Advisory | JAN | 29 hr |
| Aug 8, 7:30 PM CDT | Special Weather Statement | JAN | 45 min |
| Aug 10, 2:36 PM CDT | Special Weather Statement | JAN | 24 min |
| Aug 15, 3:40 AM CDT | Heat Advisory | JAN | 15 hr |
| Aug 31, 2:20 AM CDT | Dense Fog Advisory | JAN | 4 hr |
| Sep 9, 3:07 PM CDT | Special Weather Statement | JAN | 38 min |
| Sep 26, 2:46 PM CDT | Fire Weather Watch | JAN | 24 hr |
| Sep 27, 2:22 PM CDT | Red Flag Warning | JAN | 30 hr |
| Oct 12, 2:52 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Oct 12, 3:56 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Oct 12, 4:30 PM CDT | Severe Thunderstorm Warning | JAN | 45 min |
| Oct 12, 5:02 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Oct 12, 5:03 PM CDT | Severe Thunderstorm Warning | JAN | 42 min |
| Oct 12, 5:28 PM CDT | Severe Thunderstorm Warning | JAN | 27 min |
| Oct 12, 10:36 PM CDT | Special Weather Statement | JAN | 54 min |
| Oct 17, 2:45 AM CDT | Freeze Watch | JAN | 23 hr |
| Oct 18, 2:11 AM CDT | Freeze Watch | JAN | 25 hr |
| Oct 18, 2:11 AM CDT | Freeze Warning | JAN | 31 hr |
| Oct 19, 2:41 AM CDT | Freeze Warning | JAN | 30 hr |
| Nov 7, 12:50 AM CST | Dense Fog Advisory | JAN | 8 hr |
| Nov 11, 2:24 PM CST | Freeze Watch | JAN | 13 hr |
| Nov 12, 2:58 AM CST | Freeze Warning | JAN | 29 hr |
| Nov 29, 11:20 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Nov 29, 12:11 PM CST | Tornado Watch | SPC | 7 hr |
| Nov 29, 4:10 PM CST | Severe Thunderstorm Warning | JAN | 65 min |
| Nov 29, 6:52 PM CST | Tornado Watch | SPC | 9 hr |
| Dec 13, 8:43 AM CST | Flood Watch | JAN | 33 hr |
| Dec 13, 11:05 PM CST | Mesoscale Discussion | SPC | 115 min |
| Dec 13, 11:42 PM CST | Tornado Watch | SPC | 6 hr |
| Dec 14, 12:13 AM CST | Tornado Warning | JAN | 62 min |
| Dec 20, 3:16 AM CST | Hard Freeze Watch | JAN | 23 hr |
| Dec 21, 2:34 AM CST | Hard Freeze Warning | JAN | 4 days |
| Dec 21, 11:48 AM CST | Wind Chill Advisory | JAN | 70 hr |
| Dec 22, 3:13 PM CST | Wind Chill Warning | JAN | 21 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 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 10 |
| Mesoscale Discussion | 28 |
| Special Weather Statement | 9 |
| Flooding | |
| Flood Watch | 2 |
| Winter | |
| Winter Weather Advisory | 4 |
| Heat | |
| Excessive Heat Warning | 3 |
| Heat Advisory | 21 |
| Cold | |
| Freeze Warning | 5 |
| Hard Freeze Warning | 1 |
| Wind Chill Warning | 1 |
| Freeze Watch | 3 |
| Hard Freeze Watch | 1 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 2 |
| 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 archive20212023
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.