Alert archive / Louisiana / Jackson Parish
Weather alerts in Jackson Parish, Louisiana, 2015
135 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Jackson Parish and its neighbors
Each county as a circle sized by its count in 2015. Tap one for its archive.
- Alerts
- 135
- Warnings
- 39
- Watches
- 21
- Advisories
- 34
- Busiest month
- December27 alerts
- Busiest day
- December 28, 201510 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 Jackson Parish in 2015 had a tornado report inside them.
Jackson Parish, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 21 | 16 | 24% | 6 | 83% | 29 min |
| Flash flood warnings | 7 | 5 | 29% | 0 |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Shreveport, LA: tornado warnings | 103 | 20 | 81% | 42 | 55% | 11 min |
| NWS Shreveport, LA: severe thunderstorm warnings | 270 | 164 | 39% | 438 | 72% | 24 min |
| NWS Shreveport, LA: flash flood warnings | 115 | 80 | 30% | 274 | 89% | 96 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, 3:42 PM CST | Flash Flood Watch | SHV | 24 hr |
| Jan 3, 4:59 AM CST | Severe Thunderstorm Warning | SHV | 46 min |
| Jan 6, 8:35 PM CST | Lake Wind Advisory | SHV | 21 hr |
| Jan 7, 5:16 AM CST | Hard Freeze Warning | SHV | 28 hr |
| Jan 24, 4:24 PM CST | Lake Wind Advisory | SHV | 26 hr |
| Feb 1, 11:16 AM CST | Lake Wind Advisory | SHV | 17 hr |
| Feb 1, 2:28 PM CST | Mesoscale Discussion | SPC | 92 min |
| Feb 1, 2:59 PM CST | Severe Thunderstorm Warning | SHV | 27 min |
| Feb 21, 3:27 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 21, 4:02 PM CST | Winter Storm Watch | SHV | 13 hr |
| Feb 22, 4:42 AM CST | Winter Storm Warning | SHV | 17 hr |
| Feb 22, 2:34 PM CST | Lake Wind Advisory | SHV | 8 hr |
| Feb 22, 9:42 PM CST | Winter Storm Warning | SHV | 26 hr |
| Feb 23, 3:55 AM CST | Winter Weather Advisory | SHV | 20 hr |
| Feb 23, 7:42 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Feb 24, 4:36 AM CST | Winter Weather Advisory | SHV | 36 hr |
| Feb 24, 10:00 AM CST | Winter Storm Warning | SHV | 30 hr |
| Mar 2, 9:48 PM CST | Dense Fog Advisory | SHV | 12 hr |
| Mar 4, 3:28 AM CST | Winter Weather Advisory | SHV | 33 hr |
| Mar 4, 3:35 AM CST | Lake Wind Advisory | SHV | 36 hr |
| Mar 4, 11:54 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Mar 12, 9:58 AM CDT | Flash Flood Watch | SHV | 31 hr |
| Mar 16, 4:20 AM CDT | Dense Fog Advisory | SHV | 6 hr |
| Mar 19, 3:45 PM CDT | Flash Flood Watch | SHV | 56 hr |
| Apr 1, 5:12 PM CDT | Severe Thunderstorm Warning | SHV | 48 min |
| Apr 2, 3:50 AM CDT | Lake Wind Advisory | SHV | 15 hr |
| Apr 3, 5:29 AM CDT | Lake Wind Advisory | SHV | 9 hr |
| Apr 3, 5:54 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 19, 2:22 AM CDT | Severe Thunderstorm Warning | SHV | 38 min |
| Apr 19, 2:56 AM CDT | Mesoscale Discussion | SPC | 94 min |
| Apr 19, 2:58 AM CDT | Severe Thunderstorm Warning | SHV | 47 min |
| Apr 19, 3:34 AM CDT | Severe Thunderstorm Warning | SHV | 56 min |
| Apr 19, 1:52 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Apr 19, 2:31 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 19, 4:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 19, 5:46 PM CDT | Tornado Watch | SPC | 6 hr |
| Apr 19, 7:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 19, 9:41 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Apr 24, 3:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 24, 4:45 PM CDT | Tornado Watch | SPC | 5 hr |
| Apr 24, 7:46 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Apr 24, 9:20 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Apr 24, 9:59 PM CDT | Tornado Watch | SPC | 4 hr |
| Apr 24, 11:26 PM CDT | Special Weather Statement | SHV | 64 min |
| Apr 24, 11:45 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Apr 25, 4:31 AM CDT | Lake Wind Advisory | SHV | 11 hr |
| May 16, 3:18 PM CDT | Severe Thunderstorm Warning | SHV | 42 min |
| May 17, 2:39 PM CDT | Special Weather Statement | SHV | 66 min |
| May 17, 4:22 PM CDT | Flash Flood Watch | SHV | 24 hr |
| May 18, 6:02 AM CDT | Flash Flood Warning | SHV | 3 hr |
| May 18, 7:13 AM CDT | Flash Flood Warning | SHV | 3 hr |
| May 18, 8:59 AM CDT | Flash Flood Warning | SHV | 2 hr |
| May 18, 10:28 AM CDT | Flash Flood Warning | SHV | 4 hr |
| May 18, 10:37 AM CDT | Flash Flood Warning | SHV | 3 hr |
| May 18, 10:57 AM CDT | Areal Flood Advisory | SHV | 3 hr |
| May 18, 1:29 PM CDT | Flash Flood Warning | SHV | 3 hr |
| May 21, 10:00 AM CDT | Areal Flood Advisory | SHV | 3 hr |
| May 21, 12:57 PM CDT | Areal Flood Advisory | SHV | 2 hr |
| May 23, 4:49 AM CDT | Flash Flood Watch | SHV | 71 hr |
| May 24, 12:05 PM CDT | Mesoscale Discussion | SPC | 115 min |
| May 24, 12:34 PM CDT | Tornado Watch | SPC | 6 hr |
| May 25, 5:15 PM CDT | Mesoscale Discussion | SPC | 90 min |
| May 25, 5:51 PM CDT | Tornado Watch | SPC | 6 hr |
| May 25, 7:07 PM CDT | Tornado Warning | SHV | 38 min |
| May 25, 8:05 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 25, 9:22 PM CDT | Severe Thunderstorm Warning | SHV | 53 min |
| May 25, 10:05 PM CDT | Severe Thunderstorm Warning | SHV | 40 min |
| May 25, 10:44 PM CDT | Severe Thunderstorm Warning | SHV | 31 min |
| May 26, 6:22 PM CDT | Mesoscale Discussion | SPC | 83 min |
| May 28, 4:29 PM CDT | Severe Thunderstorm Warning | SHV | 36 min |
| May 29, 8:14 PM CDT | Areal Flood Advisory | SHV | 3 hr |
| May 30, 10:14 AM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 9, 7:20 PM CDT | Severe Thunderstorm Warning | SHV | 55 min |
| Jun 9, 9:03 PM CDT | Severe Thunderstorm Warning | SHV | 57 min |
| Jun 17, 3:13 PM CDT | Special Weather Statement | SHV | 62 min |
| Jun 17, 9:34 PM CDT | Flash Flood Watch | SHV | 21 hr |
| Jun 18, 5:31 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 18, 7:54 PM CDT | Flash Flood Watch | SHV | 8 hr |
| Jun 24, 5:06 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 1:09 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 5, 12:46 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jul 5, 6:14 PM CDT | Special Weather Statement | SHV | 46 min |
| Jul 13, 3:06 AM CDT | Heat Advisory | SHV | 40 hr |
| Jul 15, 2:57 AM CDT | Heat Advisory | SHV | 7 days |
| Jul 23, 2:23 AM CDT | Heat Advisory | SHV | 17 hr |
| Jul 24, 4:01 PM CDT | Heat Advisory | SHV | 6 days |
| Aug 5, 4:28 AM CDT | Heat Advisory | SHV | 15 hr |
| Aug 5, 3:50 PM CDT | Heat Advisory | SHV | 6 days |
| Aug 8, 5:19 AM CDT | Excessive Heat Warning | SHV | 13 hr |
| Aug 9, 5:19 AM CDT | Excessive Heat Warning | SHV | 14 hr |
| Aug 10, 5:08 AM CDT | Excessive Heat Warning | SHV | 14 hr |
| Aug 19, 2:45 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 11, 5:51 PM CDT | Special Weather Statement | SHV | 54 min |
| Oct 2, 5:26 AM CDT | Lake Wind Advisory | SHV | 9 hr |
| Oct 15, 3:28 PM CDT | Fire Weather Watch | SHV | 3 days |
| Oct 25, 5:16 AM CDT | Lake Wind Advisory | SHV | 29 hr |
| Oct 30, 3:00 PM CDT | Flash Flood Watch | SHV | 25 hr |
| Nov 16, 3:35 AM CST | Flash Flood Watch | SHV | 42 hr |
| Nov 16, 3:25 PM CST | Lake Wind Advisory | SHV | 27 hr |
| Nov 17, 8:55 AM CST | Tornado Watch | SPC | 7 hr |
| Nov 17, 12:19 PM CST | Mesoscale Discussion | SPC | 116 min |
| Nov 17, 12:42 PM CST | Severe Thunderstorm Warning | SHV | 63 min |
| Nov 17, 1:09 PM CST | Severe Thunderstorm Warning | SHV | 51 min |
| Nov 17, 1:58 PM CST | Severe Thunderstorm Warning | SHV | 48 min |
| Nov 17, 2:51 PM CST | Mesoscale Discussion | SPC | 84 min |
| Nov 20, 2:55 PM CST | Lake Wind Advisory | SHV | 25 hr |
| Nov 21, 5:59 AM CST | Freeze Warning | SHV | 27 hr |
| Nov 22, 5:43 AM CST | Freeze Warning | SHV | 27 hr |
| Dec 10, 6:25 AM CST | Dense Fog Advisory | SHV | 3 hr |
| Dec 12, 4:27 AM CST | Lake Wind Advisory | SHV | 36 hr |
| Dec 13, 11:00 AM CST | Severe Thunderstorm Warning | SHV | 60 min |
| Dec 13, 11:59 AM CST | Special Weather Statement | SHV | 61 min |
| Dec 22, 1:09 AM CST | Dense Fog Advisory | SHV | 9 hr |
| Dec 23, 12:06 AM CST | Tornado Watch | SPC | 7 hr |
| Dec 23, 12:17 AM CST | Special Weather Statement | SHV | 43 min |
| Dec 23, 4:39 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 24, 3:23 AM CST | Dense Fog Advisory | SHV | 7 hr |
| Dec 25, 1:48 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 25, 4:53 PM CST | Severe Thunderstorm Warning | SHV | 67 min |
| Dec 26, 10:43 AM CST | Lake Wind Advisory | SHV | 7 hr |
| Dec 27, 5:42 AM CST | Lake Wind Advisory | SHV | 18 hr |
| Dec 27, 12:47 PM CST | Mesoscale Discussion | SPC | 88 min |
| Dec 27, 2:27 PM CST | Mesoscale Discussion | SPC | 63 min |
| Dec 27, 2:47 PM CST | Tornado Watch | SPC | 7 hr |
| Dec 27, 4:55 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 27, 7:11 PM CST | Mesoscale Discussion | SPC | 94 min |
| Dec 27, 8:59 PM CST | Mesoscale Discussion | SPC | 91 min |
| Dec 27, 9:57 PM CST | Tornado Watch | SPC | 7 hr |
| Dec 27, 11:33 PM CST | Severe Thunderstorm Warning | SHV | 57 min |
| Dec 27, 11:49 PM CST | Mesoscale Discussion | SPC | 86 min |
| Dec 28, 12:05 AM CST | Tornado Warning | SHV | 25 min |
| Dec 28, 12:19 AM CST | Lake Wind Advisory | SHV | 15 hr |
| Dec 28, 12:23 AM CST | Flash Flood Warning | SHV | 4 hr |
| Dec 28, 12:29 AM CST | Severe Thunderstorm Warning | SHV | 61 min |
| Dec 28, 1:30 AM CST | Severe Thunderstorm Warning | SHV | 30 min |
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 | 21 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 9 |
| Mesoscale Discussion | 34 |
| Special Weather Statement | 7 |
| Flooding | |
| Flash Flood Warning | 7 |
| Flash Flood Watch | 9 |
| Areal Flood Advisory | 4 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 3 |
| Heat | |
| Excessive Heat Warning | 3 |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 2 |
| Hard Freeze Warning | 1 |
| Wind and dust | |
| Lake Wind Advisory | 16 |
| Fire | |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
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.