Alert archive / Mississippi / Leflore County
Weather alerts in Leflore County, Mississippi, 2018
144 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Leflore County and its neighbors
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Alerts
- 144
- Warnings
- 46
- Watches
- 18
- Advisories
- 24
- Busiest month
- July30 alerts
- Busiest day
- July 21, 20187 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 Leflore County in 2018 had a tornado report inside them.
Leflore County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 19 | 11 | 42% | 5 | 100% | 30 min |
| Flash flood warnings | 5 | 4 | 20% | 3 | 100% | 51 min |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Jackson, MS: tornado warnings | 91 | 28 | 69% | 77 | 51% | 15 min |
| NWS Jackson, MS: severe thunderstorm warnings | 449 | 250 | 44% | 724 | 75% | 25 min |
| NWS Jackson, MS: flash flood warnings | 121 | 74 | 39% | 245 | 85% | 93 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 9, 7:18 PM CST | Dense Fog Advisory | JAN | 10 hr |
| Jan 11, 11:02 AM CST | Winter Weather Advisory | JAN | 31 hr |
| Jan 15, 4:14 AM CST | Winter Storm Warning | JAN | 35 hr |
| Jan 15, 2:45 PM CST | Wind Chill Advisory | JAN | 45 hr |
| Jan 15, 2:56 PM CST | Hard Freeze Warning | JAN | 69 hr |
| Feb 6, 4:31 PM CST | Flash Flood Watch | JAN | 16 hr |
| Feb 7, 11:04 AM CST | River Flood Warning | JAN | 50 hr |
| Feb 10, 8:31 PM CST | River Flood Warning | JAN | 59 hr |
| Feb 20, 3:43 PM CST | Flash Flood Watch | JAN | 44 hr |
| Feb 22, 2:35 AM CST | Special Weather Statement | JAN | 85 min |
| Feb 22, 3:30 AM CST | Flash Flood Warning | JAN | 5 hr |
| Feb 22, 7:39 AM CST | Flash Flood Warning | JAN | 4 hr |
| Feb 22, 9:16 AM CST | River Flood Warning | JAN | 18 days |
| Feb 22, 11:57 AM CST | Areal Flood Warning | JAN | 6 hr |
| Feb 23, 3:18 PM CST | Wind Advisory | JAN | 28 hr |
| Feb 24, 5:29 PM CST | Mesoscale Discussion | SPC | 91 min |
| Feb 26, 2:44 PM CST | Flood Watch | JAN | 69 hr |
| Mar 10, 5:57 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 10, 8:06 PM CST | Mesoscale Discussion | SPC | 114 min |
| Mar 10, 8:33 PM CST | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 10, 10:44 PM CST | Mesoscale Discussion | SPC | 91 min |
| Mar 17, 8:49 AM CDT | River Flood Warning | JAN | 37 hr |
| Mar 19, 3:54 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 19, 4:55 AM CDT | Dense Fog Advisory | JAN | 5 hr |
| Mar 27, 3:33 AM CDT | Wind Advisory | JAN | 13 hr |
| Mar 27, 11:00 AM CDT | River Flood Warning | JAN | 48 hr |
| Mar 27, 2:56 PM CDT | Flash Flood Watch | JAN | 46 hr |
| Mar 28, 2:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Mar 28, 3:27 PM CDT | Tornado Watch | SPC | 8 hr |
| Mar 28, 5:32 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Apr 2, 3:00 PM CDT | Wind Advisory | JAN | 36 hr |
| Apr 3, 4:51 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 3, 6:51 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Apr 3, 7:07 PM CDT | Severe Thunderstorm Warning | JAN | 53 min |
| Apr 3, 7:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 5, 11:18 AM CDT | River Flood Warning | JAN | 4 days |
| Apr 5, 8:19 PM CDT | Flash Flood Watch | JAN | 28 hr |
| Apr 7, 3:45 AM CDT | Freeze Warning | JAN | 28 hr |
| Apr 12, 2:51 PM CDT | Flash Flood Watch | JAN | 52 hr |
| Apr 13, 3:43 AM CDT | Wind Advisory | JAN | 18 hr |
| Apr 13, 11:41 AM CDT | River Flood Warning | JAN | 57 hr |
| Apr 13, 10:12 PM CDT | Tornado Watch | SPC | 10 hr |
| Apr 14, 2:10 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 14, 4:21 AM CDT | Tornado Warning | JAN | 54 min |
| Apr 14, 4:35 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Apr 14, 4:49 AM CDT | Tornado Warning | JAN | 46 min |
| Apr 14, 5:13 AM CDT | Severe Thunderstorm Warning | JAN | 77 min |
| Apr 23, 9:59 AM CDT | River Flood Warning | JAN | 25 hr |
| Apr 27, 12:58 AM CDT | Dense Fog Advisory | JAN | 8 hr |
| May 5, 7:33 PM CDT | River Flood Warning | JAN | 24 hr |
| May 15, 3:54 PM CDT | Special Weather Statement | JAN | 51 min |
| May 20, 5:21 PM CDT | Severe Thunderstorm Warning | JAN | 24 min |
| May 20, 6:25 PM CDT | Special Weather Statement | JAN | 35 min |
| May 20, 11:05 PM CDT | Severe Thunderstorm Warning | JAN | 19 min |
| May 20, 11:23 PM CDT | Special Weather Statement | JAN | 37 min |
| May 23, 4:22 PM CDT | Severe Thunderstorm Warning | JAN | 53 min |
| May 30, 1:19 PM CDT | Severe Thunderstorm Warning | JAN | 56 min |
| May 30, 2:27 PM CDT | Special Weather Statement | JAN | 48 min |
| May 30, 2:33 PM CDT | Severe Thunderstorm Warning | JAN | 27 min |
| Jun 3, 1:15 AM CDT | Severe Thunderstorm Warning | JAN | 60 min |
| Jun 3, 1:32 AM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 3, 1:55 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 3, 2:31 AM CDT | Severe Thunderstorm Warning | JAN | 24 min |
| Jun 3, 3:54 AM CDT | Mesoscale Discussion | SPC | 66 min |
| Jun 18, 3:52 PM CDT | Severe Thunderstorm Warning | JAN | 38 min |
| Jun 18, 4:30 PM CDT | Special Weather Statement | JAN | 30 min |
| Jun 23, 4:50 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jun 24, 11:11 PM CDT | Special Weather Statement | JAN | 49 min |
| Jun 26, 3:25 PM CDT | Heat Advisory | JAN | 30 hr |
| Jun 27, 2:43 PM CDT | Heat Advisory | JAN | 29 hr |
| Jun 28, 2:56 PM CDT | Heat Advisory | JAN | 19 hr |
| Jun 29, 3:12 AM CDT | Special Weather Statement | JAN | 33 min |
| Jun 30, 8:08 PM CDT | Special Weather Statement | JAN | 52 min |
| Jul 1, 10:47 AM CDT | Heat Advisory | JAN | 9 hr |
| Jul 2, 7:49 PM CDT | Special Weather Statement | JAN | 26 min |
| Jul 2, 7:55 PM CDT | Special Weather Statement | JAN | 35 min |
| Jul 2, 8:18 PM CDT | Special Weather Statement | JAN | 27 min |
| Jul 4, 2:49 PM CDT | Special Weather Statement | JAN | 26 min |
| Jul 4, 3:02 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Jul 6, 2:46 PM CDT | Special Weather Statement | JAN | 29 min |
| Jul 6, 3:19 PM CDT | Severe Thunderstorm Warning | JAN | 56 min |
| Jul 13, 4:42 AM CDT | Heat Advisory | JAN | 14 hr |
| Jul 15, 3:55 AM CDT | Heat Advisory | JAN | 15 hr |
| Jul 16, 3:16 AM CDT | Heat Advisory | JAN | 16 hr |
| Jul 16, 7:20 PM CDT | Flash Flood Warning | JAN | 87 min |
| Jul 16, 7:26 PM CDT | Special Weather Statement | JAN | 49 min |
| Jul 18, 2:45 PM CDT | Heat Advisory | JAN | 28 hr |
| Jul 19, 3:13 PM CDT | Heat Advisory | JAN | 29 hr |
| Jul 19, 11:21 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jul 19, 11:39 PM CDT | Severe Thunderstorm Warning | JAN | 66 min |
| Jul 20, 9:25 AM CDT | Excessive Heat Warning | JAN | 11 hr |
| Jul 20, 12:51 PM CDT | Severe Thunderstorm Warning | JAN | 54 min |
| Jul 20, 1:23 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 20, 1:31 PM CDT | Severe Thunderstorm Warning | JAN | 59 min |
| Jul 20, 9:08 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 20, 10:20 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jul 21, 12:09 AM CDT | Special Weather Statement | JAN | 51 min |
| Jul 21, 2:33 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 21, 3:41 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 4:28 AM CDT | Severe Thunderstorm Warning | JAN | 62 min |
| Jul 21, 6:16 AM CDT | Mesoscale Discussion | SPC | 119 min |
| Jul 30, 12:57 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 12, 3:18 PM CDT | Special Weather Statement | JAN | 57 min |
| Aug 17, 3:17 PM CDT | Special Weather Statement | JAN | 43 min |
| Aug 17, 3:39 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 20, 3:14 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 20, 5:26 PM CDT | Special Weather Statement | JAN | 34 min |
| Aug 20, 5:30 PM CDT | Severe Thunderstorm Warning | JAN | 45 min |
| Aug 20, 5:57 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Aug 20, 7:18 PM CDT | Severe Thunderstorm Warning | JAN | 57 min |
| Aug 29, 2:11 PM CDT | Special Weather Statement | JAN | 34 min |
| Sep 3, 4:18 AM CDT | Flash Flood Watch | JAN | 4 days |
| Sep 6, 2:41 AM CDT | Flash Flood Warning | JAN | 5 hr |
| Sep 6, 7:41 AM CDT | Flash Flood Warning | JAN | 5 hr |
| Sep 6, 8:58 AM CDT | River Flood Warning | JAN | 49 hr |
| Sep 6, 9:03 PM CDT | Special Weather Statement | JAN | 42 min |
| Sep 8, 4:25 PM CDT | Special Weather Statement | JAN | 50 min |
| Sep 8, 5:14 PM CDT | Special Weather Statement | JAN | 46 min |
| Sep 22, 5:01 PM CDT | Special Weather Statement | JAN | 29 min |
| Sep 26, 6:20 AM CDT | Special Weather Statement | JAN | 55 min |
| Oct 31, 10:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Oct 31, 11:07 PM CDT | Tornado Watch | SPC | 9 hr |
| Nov 1, 1:19 AM CDT | Mesoscale Discussion | SPC | 116 min |
| Nov 1, 2:37 AM CDT | Severe Thunderstorm Warning | JAN | 53 min |
| Nov 4, 9:50 PM CST | Dense Fog Advisory | JAN | 10 hr |
| Nov 5, 3:38 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Nov 5, 4:06 PM CST | Tornado Watch | SPC | 7 hr |
| Nov 5, 9:28 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Nov 8, 5:48 PM CST | Freeze Watch | JAN | 10 hr |
| Nov 9, 3:22 AM CST | Freeze Warning | JAN | 30 hr |
| Nov 10, 3:41 AM CST | Freeze Warning | JAN | 24 hr |
| Nov 13, 3:02 AM CST | Freeze Warning | JAN | 30 hr |
| Nov 13, 3:15 PM CST | Winter Weather Advisory | JAN | 27 hr |
| Nov 13, 3:34 PM CST | Freeze Watch | JAN | 18 hr |
| Nov 14, 9:33 AM CST | Freeze Warning | JAN | 23 hr |
| Nov 14, 6:19 PM CST | Special Weather Statement | JAN | 3 hr |
| Dec 1, 3:25 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 7, 10:35 AM CST | River Flood Warning | JAN | 48 hr |
| Dec 11, 3:44 AM CST | Freezing Fog Advisory | JAN | 6 hr |
| Dec 14, 12:03 PM CST | Severe Thunderstorm Warning | JAN | 27 min |
| Dec 16, 2:23 PM CST | Dense Fog Advisory | JAN | 20 hr |
| Dec 18, 12:32 AM CST | Dense Fog Advisory | JAN | 9 hr |
| Dec 26, 12:40 PM CST | Wind Advisory | JAN | 27 hr |
| Dec 31, 10:23 AM CST | Special Weather Statement | JAN | 37 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
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.