Alert archive / Louisiana / Union Parish
Weather alerts in Union Parish, Louisiana, 2016
198 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Union Parish and its neighbors
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Alerts
- 198
- Warnings
- 63
- Watches
- 21
- Advisories
- 44
- Busiest month
- March75 alerts
- Busiest day
- March 9, 201613 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 Union Parish in 2016 had a tornado report inside them.
Union Parish, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 35 | 20 | 43% | 15 | 73% | 16 min |
| Flash flood warnings | 17 | 13 | 24% | 4 | 100% | 430 min |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Shreveport, LA: tornado warnings | 78 | 11 | 86% | 20 | 80% | 14 min |
| NWS Shreveport, LA: severe thunderstorm warnings | 256 | 125 | 51% | 404 | 72% | 22 min |
| NWS Shreveport, LA: flash flood warnings | 82 | 58 | 29% | 248 | 92% | 275 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 8, 2:08 AM CST | Dense Fog Advisory | SHV | 10 hr |
| Jan 8, 9:05 PM CST | Special Weather Statement | SHV | 40 min |
| Jan 21, 7:44 AM CST | Special Weather Statement | SHV | 16 min |
| Jan 21, 7:45 AM CST | Special Weather Statement | SHV | 45 min |
| Jan 21, 3:50 PM CST | Lake Wind Advisory | SHV | 26 hr |
| Jan 21, 4:11 PM CST | Winter Weather Advisory | SHV | 16 hr |
| Jan 30, 4:28 AM CST | Lake Wind Advisory | SHV | 36 hr |
| Feb 7, 3:25 PM CST | Lake Wind Advisory | SHV | 27 hr |
| Feb 9, 3:29 AM CST | Lake Wind Advisory | SHV | 13 hr |
| Feb 16, 10:59 AM CST | Lake Wind Advisory | SHV | 7 hr |
| Feb 22, 9:55 PM CST | Wind Advisory | SHV | 29 hr |
| Feb 23, 4:27 PM CST | Lake Wind Advisory | SHV | 24 hr |
| Mar 2, 10:18 PM CST | Lake Wind Advisory | SHV | 20 hr |
| Mar 3, 2:29 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Mar 7, 4:53 AM CST | Flash Flood Watch | SHV | 6 days |
| Mar 8, 12:41 PM CST | Tornado Watch | SPC | 5 hr |
| Mar 8, 3:11 PM CST | Mesoscale Discussion | SPC | 94 min |
| Mar 8, 4:26 PM CST | Severe Thunderstorm Warning | SHV | 49 min |
| Mar 8, 5:13 PM CST | Severe Thunderstorm Warning | SHV | 35 min |
| Mar 8, 5:52 PM CST | Mesoscale Discussion | SPC | 83 min |
| Mar 8, 6:36 PM CST | Flash Flood Warning | SHV | 16 hr |
| Mar 8, 8:04 PM CST | Flash Flood Warning | SHV | 6 hr |
| Mar 8, 9:35 PM CST | Flash Flood Warning | SHV | 6 hr |
| Mar 9, 3:28 AM CST | Areal Flood Warning | SHV | 3 hr |
| Mar 9, 7:51 AM CST | River Flood Warning | SHV | 5 days |
| Mar 9, 7:56 AM CST | River Flood Warning | SHV | 8 days |
| Mar 9, 9:18 AM CST | Flash Flood Warning | SHV | 4 hr |
| Mar 9, 9:20 AM CST | Special Weather Statement | SHV | 40 min |
| Mar 9, 10:06 AM CST | Special Weather Statement | SHV | 39 min |
| Mar 9, 10:07 AM CST | Special Weather Statement | SHV | 38 min |
| Mar 9, 10:58 AM CST | Flash Flood Warning | SHV | 4 hr |
| Mar 9, 2:48 PM CST | Flash Flood Warning | SHV | 12 hr |
| Mar 9, 2:52 PM CST | Flash Flood Warning | SHV | 21 hr |
| Mar 10, 2:43 AM CST | Flash Flood Warning | SHV | 12 hr |
| Mar 10, 11:48 AM CST | Flash Flood Warning | SHV | 6 hr |
| Mar 10, 2:33 PM CST | River Flood Warning | SHV | 57 days |
| Mar 10, 5:45 PM CST | Flash Flood Warning | SHV | 3 hr |
| Mar 10, 9:08 PM CST | Flash Flood Warning | SHV | 21 hr |
| Mar 11, 6:20 PM CST | Flash Flood Warning | SHV | 28 hr |
| Mar 12, 2:20 PM CST | Severe Thunderstorm Warning | SHV | 40 min |
| Mar 12, 2:43 PM CST | Severe Thunderstorm Warning | SHV | 32 min |
| Mar 12, 10:06 PM CST | Areal Flood Warning | SHV | 7 days |
| Mar 13, 1:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Mar 13, 2:10 PM CDT | Tornado Watch | SPC | 5 hr |
| Mar 13, 5:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Mar 13, 6:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Mar 13, 7:11 PM CDT | Tornado Watch | SPC | 6 hr |
| Mar 13, 7:38 PM CDT | Severe Thunderstorm Warning | SHV | 67 min |
| Mar 13, 8:13 PM CDT | Special Weather Statement | SHV | 47 min |
| Mar 13, 8:16 PM CDT | Severe Thunderstorm Warning | SHV | 24 min |
| Mar 13, 8:17 PM CDT | Severe Thunderstorm Warning | SHV | 17 min |
| Mar 15, 4:43 AM CDT | Lake Wind Advisory | SHV | 14 hr |
| Mar 17, 9:37 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Mar 18, 5:42 AM CDT | Special Weather Statement | SHV | 33 min |
| Mar 18, 12:39 PM CDT | Special Weather Statement | SHV | 51 min |
| Mar 18, 12:46 PM CDT | Severe Thunderstorm Warning | SHV | 44 min |
| Mar 18, 1:16 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Mar 18, 1:20 PM CDT | Severe Thunderstorm Warning | SHV | 55 min |
| Mar 18, 1:30 PM CDT | Severe Thunderstorm Warning | SHV | 30 min |
| Mar 18, 1:35 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 18, 2:07 PM CDT | Severe Thunderstorm Warning | SHV | 53 min |
| Mar 18, 3:07 PM CDT | Severe Thunderstorm Warning | SHV | 68 min |
| Mar 18, 3:47 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Mar 18, 7:06 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Mar 19, 4:46 AM CDT | Lake Wind Advisory | SHV | 11 hr |
| Mar 20, 4:50 AM CDT | Freeze Warning | SHV | 28 hr |
| Mar 20, 4:50 AM CDT | Lake Wind Advisory | SHV | 12 hr |
| Mar 21, 2:30 PM CDT | Lake Wind Advisory | SHV | 59 hr |
| Mar 22, 2:49 PM CDT | Lake Wind Advisory | SHV | 34 hr |
| Mar 24, 3:45 AM CDT | Severe Thunderstorm Warning | SHV | 60 min |
| Mar 24, 3:55 AM CDT | Lake Wind Advisory | SHV | 12 hr |
| Mar 24, 4:44 AM CDT | Severe Thunderstorm Warning | SHV | 61 min |
| Mar 29, 3:28 PM CDT | Flash Flood Watch | SHV | 52 hr |
| Mar 30, 11:07 AM CDT | Lake Wind Advisory | SHV | 11 hr |
| Mar 30, 2:31 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 30, 5:44 PM CDT | Special Weather Statement | SHV | 61 min |
| Mar 30, 6:15 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Mar 30, 8:07 PM CDT | Severe Thunderstorm Warning | SHV | 53 min |
| Mar 30, 8:39 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Mar 30, 9:11 PM CDT | Flash Flood Warning | SHV | 3 hr |
| Mar 30, 9:44 PM CDT | Severe Thunderstorm Warning | SHV | 61 min |
| Mar 30, 10:00 PM CDT | Tornado Watch | SPC | 6 hr |
| Mar 30, 10:25 PM CDT | Special Weather Statement | SHV | 35 min |
| Mar 30, 10:45 PM CDT | Special Weather Statement | SHV | 30 min |
| Mar 30, 11:03 PM CDT | Flash Flood Warning | SHV | 3 hr |
| Mar 31, 2:05 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Mar 31, 4:29 PM CDT | Severe Thunderstorm Warning | SHV | 49 min |
| Apr 6, 4:32 AM CDT | Lake Wind Advisory | SHV | 14 hr |
| Apr 9, 8:48 PM CDT | Lake Wind Advisory | SHV | 25 hr |
| 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, 2:11 PM CDT | Severe Thunderstorm Warning | SHV | 49 min |
| Apr 11, 3:29 PM CDT | Flash Flood Warning | SHV | 9 hr |
| Apr 11, 3:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Apr 11, 5:22 PM CDT | Flash Flood Warning | SHV | 6 hr |
| Apr 11, 5:35 PM CDT | Severe Thunderstorm Warning | SHV | 42 min |
| Apr 11, 6:09 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Apr 11, 6:31 PM CDT | Special Weather Statement | SHV | 59 min |
| Apr 11, 6:58 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 12, 12:35 AM CDT | Areal Flood Warning | SHV | 6 hr |
| Apr 14, 6:11 AM CDT | Special Weather Statement | SHV | 49 min |
| Apr 14, 6:28 AM CDT | Severe Thunderstorm Warning | SHV | 47 min |
| Apr 14, 6:47 AM CDT | Severe Thunderstorm Warning | SHV | 43 min |
| Apr 14, 7:34 AM CDT | Special Weather Statement | SHV | 41 min |
| Apr 14, 7:58 AM CDT | Severe Thunderstorm Warning | SHV | 62 min |
| Apr 19, 4:36 PM CDT | Special Weather Statement | SHV | 39 min |
| Apr 19, 5:26 PM CDT | Areal Flood Advisory | SHV | 3 hr |
| Apr 20, 2:18 AM CDT | Flash Flood Watch | SHV | 34 hr |
| Apr 27, 1:35 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Apr 27, 7:08 AM CDT | Tornado Warning | SHV | 37 min |
| Apr 28, 4:08 PM CDT | Flash Flood Watch | SHV | 51 hr |
| Apr 29, 9:46 AM CDT | Special Weather Statement | SHV | 44 min |
| Apr 29, 9:46 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Apr 29, 10:19 AM CDT | Special Weather Statement | SHV | 41 min |
| Apr 29, 10:21 AM CDT | Special Weather Statement | SHV | 24 min |
| Apr 29, 10:53 AM CDT | Special Weather Statement | SHV | 37 min |
| Apr 29, 10:55 AM CDT | Special Weather Statement | SHV | 50 min |
| Apr 29, 12:51 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Apr 29, 12:53 PM CDT | Severe Thunderstorm Warning | SHV | 52 min |
| Apr 29, 1:43 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 29, 2:17 PM CDT | Areal Flood Advisory | SHV | 3 hr |
| Apr 29, 2:26 PM CDT | Special Weather Statement | SHV | 49 min |
| Apr 29, 2:43 PM CDT | Severe Thunderstorm Warning | SHV | 48 min |
| Apr 29, 5:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Apr 29, 8:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Apr 29, 9:58 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 29, 11:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Apr 30, 8:09 AM CDT | Tornado Warning | SHV | 25 min |
| May 1, 6:58 PM CDT | Special Weather Statement | SHV | 47 min |
| May 2, 2:43 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 2, 3:17 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 2, 5:48 AM CDT | Mesoscale Discussion | SPC | 87 min |
| May 2, 11:17 AM CDT | Areal Flood Advisory | SHV | 3 hr |
| May 8, 3:17 PM CDT | Lake Wind Advisory | SHV | 28 hr |
| May 9, 7:23 PM CDT | Tornado Watch | SPC | 8 hr |
| May 10, 1:42 AM CDT | Mesoscale Discussion | SPC | 93 min |
| May 12, 2:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| May 12, 2:59 PM CDT | Severe Thunderstorm Warning | SHV | 31 min |
| May 12, 3:22 PM CDT | Severe Thunderstorm Warning | SHV | 38 min |
| May 25, 5:53 PM CDT | Special Weather Statement | SHV | 52 min |
| May 25, 6:21 PM CDT | Severe Thunderstorm Warning | SHV | 54 min |
| May 25, 6:45 PM CDT | Areal Flood Advisory | SHV | 2 hr |
| May 27, 4:41 AM CDT | Lake Wind Advisory | SHV | 16 hr |
| May 30, 4:36 PM CDT | Special Weather Statement | SHV | 39 min |
| May 30, 5:43 PM CDT | Special Weather Statement | SHV | 32 min |
| Jun 3, 12:45 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 12, 6:24 PM CDT | Areal Flood Advisory | SHV | 2 hr |
| Jun 14, 5:17 AM CDT | Areal Flood Advisory | SHV | 118 min |
| Jun 14, 3:36 PM CDT | Heat Advisory | SHV | 4 days |
| Jun 17, 1:30 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 27, 5:00 PM CDT | Special Weather Statement | SHV | 45 min |
| Jul 2, 3:48 PM CDT | Heat Advisory | SHV | 5 days |
| Jul 7, 3:36 PM CDT | Heat Advisory | SHV | 27 hr |
| Jul 10, 7:08 PM CDT | Severe Thunderstorm Warning | SHV | 42 min |
| Jul 14, 3:05 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 14, 6:41 PM CDT | Severe Thunderstorm Warning | SHV | 64 min |
| Jul 14, 7:40 PM CDT | Severe Thunderstorm Warning | SHV | 65 min |
| Jul 17, 3:31 PM CDT | Heat Advisory | SHV | 6 days |
| Jul 23, 2:49 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jul 24, 3:33 AM CDT | Heat Advisory | SHV | 15 hr |
| Jul 28, 9:47 AM CDT | Areal Flood Advisory | SHV | 3 hr |
| Jul 28, 10:47 AM CDT | Flash Flood Warning | SHV | 5 hr |
| Jul 30, 6:35 PM CDT | Severe Thunderstorm Warning | SHV | 55 min |
| Aug 1, 3:56 AM CDT | Heat Advisory | SHV | 39 hr |
| Aug 2, 2:56 PM CDT | Heat Advisory | SHV | 10 days |
| Aug 4, 1:50 AM CDT | Excessive Heat Warning | SHV | 62 hr |
| Aug 6, 1:13 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 7, 8:02 PM CDT | Special Weather Statement | SHV | 43 min |
| Aug 15, 4:30 PM CDT | Special Weather Statement | SHV | 60 min |
| Aug 23, 3:35 PM CDT | Heat Advisory | SHV | 27 hr |
| Aug 25, 7:22 PM CDT | Special Weather Statement | SHV | 53 min |
| Aug 25, 7:56 PM CDT | Areal Flood Advisory | SHV | 2 hr |
| Nov 18, 2:43 PM CST | Special Weather Statement | SHV | 92 min |
| Nov 18, 2:46 PM CST | Lake Wind Advisory | SHV | 7 hr |
| Nov 19, 3:08 AM CST | Freeze Warning | SHV | 30 hr |
| Nov 27, 3:05 PM CST | Lake Wind Advisory | SHV | 26 hr |
| Nov 27, 9:17 PM CST | Lake Wind Advisory | SHV | 20 hr |
| Nov 28, 11:08 AM CST | Tornado Watch | SPC | 6 hr |
| Nov 28, 12:32 PM CST | Special Weather Statement | SHV | 43 min |
| Nov 28, 1:02 PM CST | Mesoscale Discussion | SPC | 118 min |
| Nov 28, 1:16 PM CST | Special Weather Statement | SHV | 44 min |
| Nov 29, 1:14 PM CST | Special Weather Statement | SHV | 46 min |
| Nov 29, 1:28 PM CST | Severe Thunderstorm Warning | SHV | 17 min |
| Nov 29, 1:32 PM CST | Special Weather Statement | SHV | 28 min |
| Nov 29, 1:48 PM CST | Tornado Watch | SPC | 7 hr |
| Nov 29, 2:23 PM CST | Special Weather Statement | SHV | 52 min |
| Nov 29, 3:13 PM CST | Severe Thunderstorm Warning | SHV | 47 min |
| Nov 29, 3:49 PM CST | Severe Thunderstorm Warning | SHV | 13 min |
| Nov 29, 6:06 PM CST | Special Weather Statement | SHV | 54 min |
| Nov 29, 7:27 PM CST | Severe Thunderstorm Warning | SHV | 33 min |
| Dec 13, 4:24 AM CST | Dense Fog Advisory | SHV | 6 hr |
| Dec 16, 3:57 AM CST | Lake Wind Advisory | SHV | 60 hr |
| Dec 17, 6:44 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Dec 17, 8:58 PM CST | Tornado Watch | SPC | 6 hr |
| Dec 17, 10:22 PM CST | Special Weather Statement | SHV | 23 min |
| Dec 26, 11:33 PM CST | Areal Flood Advisory | SHV | 117 min |
| Dec 27, 1:41 AM CST | Areal Flood Advisory | SHV | 4 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 | 35 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 7 |
| Tornado Watch | 10 |
| Mesoscale Discussion | 32 |
| Special Weather Statement | 38 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 17 |
| River Flood Warning | 3 |
| Flash Flood Watch | 4 |
| Areal Flood Advisory | 10 |
| Winter | |
| Winter Weather Advisory | 1 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 8 |
| Cold | |
| Freeze Warning | 2 |
| Wind and dust | |
| Lake Wind Advisory | 22 |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
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.