Alert archive / Mississippi / Leflore County
Weather alerts in Leflore County, Mississippi, 2015
119 weather alerts in 2015, 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 2015. Tap one for its archive.
- Alerts
- 119
- Warnings
- 25
- Watches
- 19
- Advisories
- 23
- Busiest month
- December21 alerts
- Busiest day
- April 20, 20156 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, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 10 | 7 | 30% | 5 | 80% | 32 min |
| Flash flood warnings | 5 | 0 | 100% | 0 |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Jackson, MS: tornado warnings | 53 | 18 | 66% | 67 | 81% | 17 min |
| NWS Jackson, MS: severe thunderstorm warnings | 441 | 223 | 49% | 526 | 75% | 22 min |
| NWS Jackson, MS: flash flood warnings | 95 | 42 | 56% | 113 | 76% | 67 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 2, 3:01 PM CST | Flash Flood Watch | JAN | 33 hr |
| Jan 3, 1:47 PM CST | Areal Flood Warning | JAN | 12 hr |
| Jan 6, 5:05 AM CST | Hard Freeze Watch | JAN | 22 hr |
| Jan 6, 3:14 PM CST | Hard Freeze Warning | JAN | 51 hr |
| Jan 7, 3:23 AM CST | Wind Chill Advisory | JAN | 30 hr |
| Jan 7, 2:49 PM CST | Wind Advisory | JAN | 3 hr |
| Jan 10, 2:29 PM CST | Freezing Rain Advisory | JAN | 13 hr |
| Feb 14, 4:39 AM CST | Winter Storm Watch | JAN | 34 hr |
| Feb 15, 2:49 PM CST | Winter Weather Advisory | JAN | 30 hr |
| Feb 20, 8:24 AM CST | Winter Weather Advisory | JAN | 3 hr |
| Feb 21, 5:55 PM CST | Flash Flood Warning | JAN | 3 hr |
| Feb 21, 5:59 PM CST | Flash Flood Warning | JAN | 3 hr |
| Feb 22, 4:21 AM CST | Freezing Rain Advisory | JAN | 53 hr |
| Feb 22, 3:40 PM CST | Winter Weather Advisory | JAN | 32 hr |
| Feb 23, 3:16 PM CST | Winter Storm Watch | JAN | 24 hr |
| Feb 24, 3:06 PM CST | Winter Storm Warning | JAN | 31 hr |
| Feb 25, 11:17 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Mar 2, 2:39 PM CST | Dense Fog Advisory | JAN | 18 hr |
| Mar 2, 3:26 PM CST | Winter Storm Watch | JAN | 48 hr |
| Mar 4, 3:35 AM CST | Winter Storm Warning | JAN | 35 hr |
| Mar 4, 11:54 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Mar 9, 11:22 AM CDT | River Flood Warning | JAN | 7 days |
| Mar 11, 3:29 PM CDT | Flash Flood Watch | JAN | 47 hr |
| Mar 31, 12:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Mar 31, 1:45 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 31, 4:32 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Mar 31, 4:48 PM CDT | Severe Thunderstorm Warning | JAN | 57 min |
| Apr 3, 3:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Apr 3, 5:55 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 3, 6:07 PM CDT | Severe Thunderstorm Warning | JAN | 53 min |
| Apr 3, 8:17 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Apr 9, 6:32 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 9, 10:01 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Apr 16, 4:39 PM CDT | Special Weather Statement | JAN | 36 min |
| Apr 19, 8:02 PM CDT | Tornado Watch | SPC | 5 hr |
| Apr 19, 9:50 PM CDT | Severe Thunderstorm Warning | JAN | 55 min |
| Apr 19, 9:58 PM CDT | Severe Thunderstorm Warning | JAN | 62 min |
| Apr 19, 10:16 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Apr 19, 10:42 PM CDT | Flash Flood Warning | JAN | 2 hr |
| Apr 20, 5:29 AM CDT | River Flood Warning | JAN | 43 hr |
| Apr 24, 8:52 PM CDT | Special Weather Statement | JAN | 38 min |
| Apr 24, 11:45 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Apr 25, 12:01 AM CDT | Special Weather Statement | JAN | 29 min |
| Apr 25, 12:24 AM CDT | Severe Thunderstorm Warning | JAN | 51 min |
| May 11, 8:34 AM CDT | Special Weather Statement | JAN | 41 min |
| May 15, 4:53 PM CDT | Special Weather Statement | JAN | 52 min |
| May 18, 3:48 AM CDT | Flash Flood Watch | JAN | 11 hr |
| May 18, 6:34 AM CDT | Special Weather Statement | JAN | 26 min |
| May 19, 5:32 AM CDT | Dense Fog Advisory | JAN | 3 hr |
| May 24, 5:06 PM CDT | Severe Thunderstorm Warning | JAN | 54 min |
| May 24, 8:52 PM CDT | Special Weather Statement | JAN | 23 min |
| May 24, 9:14 PM CDT | Severe Thunderstorm Warning | JAN | 46 min |
| May 26, 12:40 AM CDT | Special Weather Statement | JAN | 50 min |
| May 27, 11:18 AM CDT | Special Weather Statement | JAN | 27 min |
| Jun 8, 4:54 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 9, 4:03 AM CDT | Flash Flood Warning | JAN | 3 hr |
| Jun 22, 3:38 PM CDT | Heat Advisory | JAN | 68 hr |
| Jun 24, 1:55 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Jun 24, 3:18 PM CDT | Severe Thunderstorm Warning | JAN | 57 min |
| Jun 30, 12:21 PM CDT | Special Weather Statement | JAN | 24 min |
| Jul 3, 2:58 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 3, 5:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 4, 3:37 AM CDT | Flash Flood Watch | JAN | 11 hr |
| Jul 12, 3:28 AM CDT | Heat Advisory | JAN | 11 days |
| Jul 15, 6:47 PM CDT | Special Weather Statement | JAN | 43 min |
| Jul 15, 7:24 PM CDT | Severe Thunderstorm Warning | JAN | 47 min |
| Jul 16, 3:15 AM CDT | Excessive Heat Warning | JAN | 12 hr |
| Jul 16, 3:15 AM CDT | Heat Advisory | JAN | 7 days |
| Jul 22, 4:15 PM CDT | Special Weather Statement | JAN | 30 min |
| Jul 22, 4:50 PM CDT | Special Weather Statement | JAN | 40 min |
| Jul 23, 3:15 AM CDT | Heat Advisory | JAN | 40 hr |
| Jul 24, 9:37 PM CDT | Heat Advisory | JAN | 6 days |
| Aug 5, 4:15 PM CDT | Heat Advisory | JAN | 4 days |
| Aug 6, 5:55 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 7, 8:39 AM CDT | Mesoscale Discussion | SPC | 66 min |
| Aug 7, 3:05 PM CDT | Heat Advisory | JAN | 37 hr |
| Aug 7, 5:41 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 8, 4:57 AM CDT | Excessive Heat Warning | JAN | 62 hr |
| Aug 15, 5:59 PM CDT | Special Weather Statement | JAN | 46 min |
| Aug 16, 6:43 PM CDT | Special Weather Statement | JAN | 47 min |
| Aug 19, 12:30 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 19, 2:45 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 22, 1:44 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 22, 7:00 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 11, 2:59 PM CDT | Special Weather Statement | JAN | 46 min |
| Sep 11, 3:23 PM CDT | Special Weather Statement | JAN | 52 min |
| Oct 15, 2:12 PM CDT | Fire Weather Watch | JAN | 3 days |
| Oct 26, 4:55 AM CDT | Wind Advisory | JAN | 14 hr |
| Nov 11, 10:01 PM CST | Special Weather Statement | JAN | 29 min |
| Nov 11, 11:04 PM CST | Special Weather Statement | JAN | 41 min |
| Nov 16, 10:35 AM CST | Flash Flood Watch | JAN | 43 hr |
| Nov 16, 3:11 PM CST | Wind Advisory | JAN | 27 hr |
| Nov 17, 12:36 PM CST | Tornado Watch | SPC | 7 hr |
| Nov 17, 1:35 PM CST | Mesoscale Discussion | SPC | 115 min |
| Nov 17, 7:45 PM CST | Tornado Watch | SPC | 7 hr |
| Nov 17, 8:40 PM CST | Special Weather Statement | JAN | 35 min |
| Nov 21, 3:56 AM CST | Freeze Warning | JAN | 29 hr |
| Nov 21, 3:56 AM CST | Freeze Warning | JAN | 53 hr |
| Dec 10, 12:03 AM CST | Dense Fog Advisory | JAN | 9 hr |
| Dec 12, 2:50 PM CST | Wind Advisory | JAN | 33 hr |
| Dec 13, 6:16 PM CST | Mesoscale Discussion | SPC | 119 min |
| Dec 22, 5:00 AM CST | Dense Fog Advisory | JAN | 5 hr |
| Dec 23, 10:58 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 23, 11:57 AM CST | Tornado Watch | SPC | 9 hr |
| Dec 23, 12:48 PM CST | Mesoscale Discussion | SPC | 57 min |
| Dec 23, 2:49 PM CST | Mesoscale Discussion | SPC | 86 min |
| Dec 23, 7:41 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 25, 1:48 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 25, 7:45 AM CST | Mesoscale Discussion | SPC | 3 hr |
| Dec 25, 8:02 AM CST | Flash Flood Watch | JAN | 20 hr |
| Dec 25, 11:17 AM CST | Flash Flood Warning | JAN | 3 hr |
| Dec 27, 3:15 PM CST | Mesoscale Discussion | SPC | 90 min |
| Dec 27, 3:38 PM CST | Wind Advisory | JAN | 16 hr |
| Dec 28, 2:03 AM CST | Mesoscale Discussion | SPC | 117 min |
| Dec 28, 2:23 AM CST | Tornado Watch | SPC | 8 hr |
| Dec 28, 4:27 AM CST | Special Weather Statement | JAN | 48 min |
| Dec 28, 4:51 AM CST | Severe Thunderstorm Warning | JAN | 54 min |
| Dec 28, 5:14 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 28, 1:18 PM CST | Wind Advisory | JAN | 5 hr |
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 archive20142016
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.