Alert archive / Mississippi / Leflore County
Weather alerts in Leflore County, Mississippi, 2016
122 weather alerts in 2016, 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 2016. Tap one for its archive.
- Alerts
- 122
- Warnings
- 36
- Watches
- 17
- Advisories
- 21
- Busiest month
- March36 alerts
- Busiest day
- March 31, 201611 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Leflore County, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 15 | 10 | 33% | 5 | 80% | 32 min |
| Flash flood warnings | 6 | 4 | 33% | 4 | 100% | 141 min |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Jackson, MS: tornado warnings | 75 | 28 | 63% | 87 | 89% | 20 min |
| NWS Jackson, MS: severe thunderstorm warnings | 453 | 278 | 39% | 760 | 80% | 23 min |
| NWS Jackson, MS: flash flood warnings | 140 | 91 | 35% | 282 | 88% | 186 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, 12:21 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Jan 20, 3:13 PM CST | Winter Storm Watch | JAN | 24 hr |
| Jan 21, 2:43 PM CST | Winter Storm Warning | JAN | 19 hr |
| Jan 21, 2:43 PM CST | Winter Weather Advisory | JAN | 23 hr |
| Jan 22, 3:58 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Jan 31, 8:55 AM CST | Wind Advisory | JAN | 9 hr |
| Feb 2, 10:41 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 2, 12:22 PM CST | Tornado Watch | SPC | 9 hr |
| Feb 2, 6:13 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 8, 2:52 AM CST | Wind Advisory | JAN | 15 hr |
| Feb 8, 10:33 AM CST | River Flood Warning | JAN | 57 days |
| Feb 9, 3:08 AM CST | Wind Advisory | JAN | 15 hr |
| Feb 22, 3:55 PM CST | Wind Advisory | JAN | 47 hr |
| Feb 23, 4:21 PM CST | Severe Thunderstorm Warning | JAN | 35 min |
| Feb 24, 7:26 PM CST | River Flood Warning | JAN | 26 hr |
| Mar 1, 9:47 AM CST | Special Weather Statement | JAN | 43 min |
| Mar 3, 2:29 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Mar 3, 3:13 PM CST | Severe Thunderstorm Warning | JAN | 47 min |
| Mar 4, 12:21 AM CST | Dense Fog Advisory | JAN | 9 hr |
| Mar 8, 11:30 PM CST | Flash Flood Watch | JAN | 4 days |
| Mar 9, 9:54 AM CST | Wind Advisory | JAN | 6 hr |
| Mar 10, 11:32 AM CST | Special Weather Statement | JAN | 28 min |
| Mar 10, 5:19 PM CST | Areal Flood Warning | JAN | 6 hr |
| Mar 10, 8:51 PM CST | River Flood Warning | JAN | 9 days |
| Mar 11, 8:40 AM CST | Flash Flood Warning | JAN | 6 hr |
| Mar 11, 2:34 PM CST | Areal Flood Warning | JAN | 9 hr |
| Mar 11, 6:08 PM CST | Areal Flood Warning | JAN | 24 hr |
| Mar 12, 4:31 PM CST | Flash Flood Warning | JAN | 5 hr |
| Mar 13, 6:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Mar 13, 7:11 PM CDT | Tornado Watch | SPC | 6 hr |
| Mar 13, 9:49 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Mar 13, 11:25 PM CDT | Special Weather Statement | JAN | 35 min |
| Mar 13, 11:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Mar 17, 11:33 PM CDT | Special Weather Statement | JAN | 27 min |
| Mar 18, 9:29 AM CDT | Special Weather Statement | JAN | 46 min |
| Mar 20, 10:06 AM CDT | Freeze Watch | JAN | 18 hr |
| Mar 22, 2:47 PM CDT | Wind Advisory | JAN | 25 hr |
| Mar 29, 1:52 PM CDT | Flash Flood Watch | JAN | 63 hr |
| Mar 30, 11:40 AM CDT | River Flood Warning | JAN | 4 days |
| Mar 30, 6:53 PM CDT | Tornado Watch | SPC | 8 hr |
| Mar 30, 10:00 PM CDT | Tornado Watch | SPC | 6 hr |
| Mar 31, 12:40 AM CDT | Special Weather Statement | JAN | 50 min |
| Mar 31, 3:00 AM CDT | Flash Flood Warning | JAN | 4 hr |
| Mar 31, 4:22 AM CDT | Flash Flood Warning | JAN | 4 hr |
| Mar 31, 6:56 AM CDT | Flash Flood Warning | JAN | 3 hr |
| Mar 31, 9:56 AM CDT | Areal Flood Warning | JAN | 3 hr |
| Mar 31, 1:30 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 31, 2:35 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 31, 4:47 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Mar 31, 5:50 PM CDT | Severe Thunderstorm Warning | JAN | 40 min |
| Mar 31, 6:03 PM CDT | Flash Flood Warning | JAN | 4 hr |
| Apr 9, 1:41 PM CDT | Wind Advisory | JAN | 31 hr |
| Apr 11, 10:51 AM CDT | River Flood Warning | JAN | 3 days |
| Apr 11, 11:48 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 11, 1:05 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 11, 3:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Apr 11, 3:50 PM CDT | Severe Thunderstorm Warning | JAN | 55 min |
| Apr 11, 6:09 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Apr 27, 11:12 AM CDT | Special Weather Statement | JAN | 48 min |
| Apr 29, 12:29 PM CDT | Severe Thunderstorm Warning | JAN | 46 min |
| Apr 29, 12:37 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Apr 29, 4:06 PM CDT | Flash Flood Watch | JAN | 24 hr |
| May 12, 2:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| May 12, 2:47 PM CDT | Special Weather Statement | JAN | 43 min |
| May 12, 2:59 PM CDT | Severe Thunderstorm Warning | JAN | 26 min |
| May 12, 4:36 PM CDT | Special Weather Statement | JAN | 24 min |
| May 31, 5:23 PM CDT | Special Weather Statement | JAN | 37 min |
| Jun 14, 3:33 PM CDT | Heat Advisory | JAN | 3 days |
| Jun 17, 11:34 AM CDT | Mesoscale Discussion | SPC | 116 min |
| Jun 17, 12:37 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 17, 3:00 PM CDT | Special Weather Statement | JAN | 30 min |
| Jun 17, 3:54 PM CDT | Special Weather Statement | JAN | 51 min |
| Jun 17, 4:01 PM CDT | Severe Thunderstorm Warning | JAN | 59 min |
| Jun 17, 4:46 PM CDT | Severe Thunderstorm Warning | JAN | 74 min |
| Jun 17, 6:06 PM CDT | Severe Thunderstorm Warning | JAN | 54 min |
| Jun 17, 6:15 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Jun 17, 6:17 PM CDT | Severe Thunderstorm Warning | JAN | 73 min |
| Jul 4, 7:33 PM CDT | Special Weather Statement | JAN | 27 min |
| Jul 5, 3:14 PM CDT | Heat Advisory | JAN | 3 days |
| Jul 5, 6:44 PM CDT | Special Weather Statement | JAN | 31 min |
| Jul 9, 3:31 PM CDT | Severe Thunderstorm Warning | JAN | 35 min |
| Jul 10, 4:04 PM CDT | Special Weather Statement | JAN | 41 min |
| Jul 14, 5:43 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 14, 7:08 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 14, 8:24 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 14, 9:01 PM CDT | Severe Thunderstorm Warning | JAN | 59 min |
| Jul 16, 6:49 PM CDT | Special Weather Statement | JAN | 26 min |
| Jul 16, 7:36 PM CDT | Special Weather Statement | JAN | 24 min |
| Jul 18, 4:02 AM CDT | Heat Advisory | JAN | 6 days |
| Jul 20, 11:41 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 24, 3:50 AM CDT | Heat Advisory | JAN | 15 hr |
| Jul 30, 9:17 PM CDT | Special Weather Statement | JAN | 28 min |
| Aug 1, 1:07 PM CDT | Heat Advisory | JAN | 61 hr |
| Aug 2, 2:35 PM CDT | Heat Advisory | JAN | 4 days |
| Aug 4, 2:27 AM CDT | Excessive Heat Warning | JAN | 42 hr |
| Aug 6, 1:13 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 15, 6:45 PM CDT | Special Weather Statement | JAN | 45 min |
| Aug 16, 6:03 PM CDT | Special Weather Statement | JAN | 27 min |
| Aug 23, 2:54 PM CDT | Heat Advisory | JAN | 28 hr |
| Sep 10, 5:45 PM CDT | Special Weather Statement | JAN | 45 min |
| Sep 18, 2:21 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 7, 1:56 PM CDT | Red Flag Warning | JAN | 29 hr |
| Oct 8, 2:49 PM CDT | Fire Weather Watch | JAN | 14 hr |
| Oct 9, 4:32 AM CDT | Red Flag Warning | JAN | 14 hr |
| Oct 20, 12:17 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Nov 18, 5:56 PM CST | Special Weather Statement | JAN | 49 min |
| Nov 19, 3:43 AM CST | Freeze Warning | JAN | 28 hr |
| Nov 20, 4:00 AM CST | Freeze Warning | JAN | 29 hr |
| Nov 24, 5:03 AM CST | Dense Fog Advisory | JAN | 4 hr |
| Nov 25, 4:58 AM CST | Dense Fog Advisory | JAN | 4 hr |
| Nov 27, 1:04 PM CST | Wind Advisory | JAN | 30 hr |
| Nov 28, 2:03 PM CST | Special Weather Statement | JAN | 42 min |
| Nov 28, 2:20 PM CST | Severe Thunderstorm Warning | JAN | 55 min |
| Nov 29, 1:48 PM CST | Tornado Watch | SPC | 7 hr |
| Nov 29, 3:20 PM CST | Severe Thunderstorm Warning | JAN | 55 min |
| Nov 29, 4:44 PM CST | Severe Thunderstorm Warning | JAN | 61 min |
| Nov 29, 8:50 PM CST | Tornado Watch | SPC | 8 hr |
| Nov 29, 11:37 PM CST | Mesoscale Discussion | SPC | 113 min |
| Dec 13, 2:24 AM CST | Dense Fog Advisory | JAN | 7 hr |
| Dec 17, 4:05 PM CST | Wind Advisory | JAN | 14 hr |
| Dec 17, 8:58 PM CST | Tornado Watch | SPC | 6 hr |
| Dec 28, 10:25 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 | 15 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 8 |
| Mesoscale Discussion | 25 |
| Special Weather Statement | 23 |
| Flooding | |
| Areal Flood Warning | 4 |
| Flash Flood Warning | 6 |
| River Flood Warning | 5 |
| Flash Flood Watch | 3 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 1 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 7 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 1 |
| Wind and dust | |
| Wind Advisory | 9 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20152017
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.