Alert archive / Louisiana / Assumption Parish
Weather alerts in Assumption Parish, Louisiana, 2016
144 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Assumption Parish and its neighbors
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Alerts
- 144
- Warnings
- 25
- Watches
- 17
- Advisories
- 38
- Busiest month
- March24 alerts
- Busiest day
- February 23, 20168 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 5 tornado warnings covering Assumption Parish in 2016 had a tornado report inside them; 2 of 2 tornado reports fell inside a warning, on average 4 minutes after it went out.
Assumption Parish, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 5 | 1 | 80% | 2 | 100% | 4 min |
| Severe thunderstorm warnings | 10 | 4 | 60% | 4 | 75% | 27 min |
| Flash flood warnings | 6 | 4 | 33% | 0 |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS New Orleans, LA: tornado warnings | 88 | 15 | 83% | 44 | 66% | 15 min |
| NWS New Orleans, LA: severe thunderstorm warnings | 148 | 38 | 74% | 119 | 51% | 21 min |
| NWS New Orleans, LA: flash flood warnings | 76 | 30 | 61% | 47 | 85% | 136 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 7, 8:32 PM CST | Dense Fog Advisory | LIX | 13 hr |
| Jan 8, 2:19 PM CST | Dense Fog Advisory | LIX | 13 hr |
| Jan 8, 9:52 PM CST | Mesoscale Discussion | SPC | 83 min |
| Jan 8, 10:44 PM CST | Severe Thunderstorm Watch | SPC | 7 hr |
| Jan 9, 2:52 AM CST | Mesoscale Discussion | SPC | 113 min |
| Jan 10, 3:14 PM CST | Freeze Warning | LIX | 17 hr |
| Jan 21, 1:44 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Jan 21, 2:14 PM CST | Tornado Watch | SPC | 6 hr |
| Jan 22, 3:32 PM CST | Freeze Warning | LIX | 11 hr |
| Jan 23, 3:47 AM CST | Freeze Watch | LIX | 12 hr |
| Jan 23, 3:25 PM CST | Freeze Warning | LIX | 18 hr |
| Jan 31, 3:27 PM CST | Dense Fog Advisory | LIX | 18 hr |
| Feb 1, 9:05 AM CST | Dense Fog Advisory | LIX | 3 hr |
| Feb 2, 1:18 PM CST | Tornado Watch | SPC | 6 hr |
| Feb 2, 5:18 PM CST | Mesoscale Discussion | SPC | 117 min |
| Feb 2, 11:31 PM CST | Special Weather Statement | LIX | 29 min |
| Feb 8, 3:32 AM CST | Wind Advisory | LIX | 18 hr |
| Feb 9, 3:23 AM CST | Wind Advisory | LIX | 14 hr |
| Feb 15, 5:27 AM CST | Mesoscale Discussion | SPC | 3 hr |
| Feb 15, 9:30 AM CST | Tornado Watch | SPC | 8 hr |
| Feb 15, 1:51 PM CST | Mesoscale Discussion | SPC | 114 min |
| Feb 15, 4:11 PM CST | Special Weather Statement | LIX | 34 min |
| Feb 22, 4:20 PM CST | Wind Advisory | LIX | 38 hr |
| Feb 23, 10:44 AM CST | Mesoscale Discussion | SPC | 91 min |
| Feb 23, 11:08 AM CST | Tornado Watch | SPC | 7 hr |
| Feb 23, 12:25 PM CST | Mesoscale Discussion | SPC | 65 min |
| Feb 23, 1:14 PM CST | Severe Thunderstorm Warning | LIX | 46 min |
| Feb 23, 1:30 PM CST | Severe Thunderstorm Warning | LIX | 30 min |
| Feb 23, 1:58 PM CST | Areal Flood Advisory | LIX | 4 hr |
| Feb 23, 3:03 PM CST | Severe Thunderstorm Warning | LIX | 27 min |
| Feb 23, 3:19 PM CST | Tornado Warning | LIX | 26 min |
| Mar 1, 3:25 AM CST | Dense Fog Advisory | LIX | 4 hr |
| Mar 3, 1:13 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Mar 5, 5:10 AM CST | Dense Fog Advisory | LIX | 4 hr |
| Mar 9, 3:15 AM CST | Wind Advisory | LIX | 39 hr |
| Mar 9, 3:28 AM CST | Flash Flood Watch | LIX | 4 days |
| Mar 10, 12:38 PM CST | Special Weather Statement | LIX | 22 min |
| Mar 10, 1:17 PM CST | Areal Flood Advisory | LIX | 3 hr |
| Mar 10, 4:32 PM CST | Areal Flood Advisory | LIX | 4 hr |
| Mar 10, 5:05 PM CST | Flash Flood Warning | LIX | 3 hr |
| Mar 10, 7:56 PM CST | Flash Flood Warning | LIX | 2 hr |
| Mar 10, 9:28 PM CST | Flash Flood Warning | LIX | 4 hr |
| Mar 11, 3:33 AM CST | Special Weather Statement | LIX | 57 min |
| Mar 11, 4:06 AM CST | Severe Thunderstorm Warning | LIX | 24 min |
| Mar 17, 7:00 PM CDT | Special Weather Statement | LIX | 90 min |
| Mar 17, 8:02 PM CDT | Special Weather Statement | LIX | 118 min |
| Mar 18, 10:40 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Mar 18, 7:28 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Mar 18, 8:12 PM CDT | Severe Thunderstorm Warning | LIX | 33 min |
| Mar 18, 8:45 PM CDT | Special Weather Statement | LIX | 60 min |
| Mar 18, 9:27 PM CDT | Special Weather Statement | LCH | 48 min |
| Mar 18, 11:42 PM CDT | Areal Flood Advisory | LIX | 2 hr |
| Mar 27, 7:54 AM CDT | Special Weather Statement | LIX | 66 min |
| Mar 27, 12:18 PM CDT | Special Weather Statement | LIX | 42 min |
| Mar 30, 3:55 PM CDT | Flash Flood Watch | LIX | 51 hr |
| Apr 1, 2:42 PM CDT | Special Weather Statement | LIX | 48 min |
| Apr 1, 3:27 PM CDT | Special Weather Statement | LIX | 33 min |
| Apr 12, 7:05 AM CDT | Special Weather Statement | LCH | 10 min |
| Apr 12, 7:36 AM CDT | Special Weather Statement | LIX | 54 min |
| Apr 12, 7:51 AM CDT | Severe Thunderstorm Warning | LIX | 39 min |
| Apr 13, 5:09 AM CDT | Special Weather Statement | LIX | 36 min |
| Apr 13, 5:37 AM CDT | Severe Thunderstorm Warning | LIX | 23 min |
| Apr 13, 5:50 AM CDT | Tornado Warning | LIX | 25 min |
| Apr 13, 6:11 AM CDT | Tornado Warning | LIX | 34 min |
| Apr 27, 7:54 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 27, 11:58 AM CDT | Special Weather Statement | LCH | 17 min |
| Apr 27, 12:26 PM CDT | Special Weather Statement | LIX | 34 min |
| Apr 28, 3:56 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 30, 4:24 AM CDT | Flash Flood Watch | LIX | 58 hr |
| Apr 30, 10:22 AM CDT | Mesoscale Discussion | SPC | 53 min |
| Apr 30, 11:38 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 30, 1:35 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Apr 30, 1:38 PM CDT | Special Weather Statement | LIX | 52 min |
| Apr 30, 4:00 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 1, 3:22 AM CDT | Mesoscale Discussion | SPC | 113 min |
| May 1, 9:16 AM CDT | Special Weather Statement | LIX | 44 min |
| May 1, 9:22 AM CDT | Severe Thunderstorm Warning | LIX | 38 min |
| May 1, 9:37 AM CDT | Areal Flood Advisory | LIX | 3 hr |
| May 17, 1:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| May 19, 7:53 PM CDT | Mesoscale Discussion | SPC | 67 min |
| May 19, 8:10 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 19, 9:11 PM CDT | Severe Thunderstorm Warning | LIX | 64 min |
| May 19, 9:45 PM CDT | Tornado Warning | LIX | 30 min |
| May 19, 9:57 PM CDT | Tornado Warning | LIX | 33 min |
| May 19, 10:01 PM CDT | Severe Thunderstorm Warning | LIX | 59 min |
| May 19, 10:22 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jun 2, 3:39 PM CDT | Flash Flood Watch | LIX | 63 hr |
| Jun 4, 9:58 AM CDT | Special Weather Statement | LIX | 32 min |
| Jun 4, 11:00 AM CDT | Special Weather Statement | LCH | 45 min |
| Jun 4, 11:37 AM CDT | Areal Flood Advisory | LIX | 3 hr |
| Jun 4, 12:09 PM CDT | Flash Flood Warning | LIX | 3 hr |
| Jun 4, 3:32 PM CDT | Areal Flood Advisory | LIX | 3 hr |
| Jun 4, 5:56 PM CDT | Special Weather Statement | LIX | 49 min |
| Jun 16, 10:44 AM CDT | Heat Advisory | LIX | 32 hr |
| Jun 19, 5:59 PM CDT | Special Weather Statement | LIX | 31 min |
| Jun 27, 7:26 PM CDT | Special Weather Statement | LIX | 49 min |
| Jun 28, 12:54 PM CDT | Special Weather Statement | LIX | 51 min |
| Jul 5, 3:35 AM CDT | Heat Advisory | LIX | 15 hr |
| Jul 5, 3:44 PM CDT | Heat Advisory | LIX | 27 hr |
| Jul 6, 3:54 PM CDT | Heat Advisory | LIX | 27 hr |
| Jul 11, 2:14 PM CDT | Special Weather Statement | LCH | 61 min |
| Jul 11, 2:33 PM CDT | Special Weather Statement | LIX | 42 min |
| Jul 13, 2:47 PM CDT | Special Weather Statement | LIX | 28 min |
| Jul 13, 3:15 PM CDT | Special Weather Statement | LIX | 30 min |
| Jul 25, 4:39 PM CDT | Special Weather Statement | LIX | 51 min |
| Jul 26, 1:43 PM CDT | Special Weather Statement | LIX | 47 min |
| Jul 26, 2:46 PM CDT | Special Weather Statement | LIX | 44 min |
| Jul 27, 10:12 AM CDT | Special Weather Statement | LIX | 63 min |
| Aug 3, 3:50 AM CDT | Heat Advisory | LIX | 15 hr |
| Aug 3, 8:24 AM CDT | Special Weather Statement | LIX | 21 min |
| Aug 4, 10:39 AM CDT | Heat Advisory | LIX | 8 hr |
| Aug 4, 4:51 PM CDT | Special Weather Statement | LIX | 54 min |
| Aug 5, 3:04 PM CDT | Heat Advisory | LIX | 28 hr |
| Aug 6, 8:35 PM CDT | Special Weather Statement | LIX | 40 min |
| Aug 11, 4:32 AM CDT | Flash Flood Watch | LIX | 3 days |
| Aug 11, 8:17 AM CDT | Areal Flood Advisory | LIX | 3 hr |
| Aug 11, 9:28 AM CDT | Flash Flood Warning | LIX | 5 hr |
| Aug 12, 4:32 AM CDT | Areal Flood Advisory | LIX | 118 min |
| Aug 12, 6:36 AM CDT | Areal Flood Advisory | LIX | 3 hr |
| Aug 12, 9:05 AM CDT | Areal Flood Advisory | LIX | 3 hr |
| Aug 13, 2:18 PM CDT | Flash Flood Warning | LIX | 8 hr |
| Aug 14, 1:28 PM CDT | Special Weather Statement | LIX | 47 min |
| Aug 16, 4:41 PM CDT | Special Weather Statement | LIX | 64 min |
| Aug 19, 12:00 PM CDT | Special Weather Statement | LIX | 60 min |
| Aug 29, 12:49 PM CDT | Special Weather Statement | LIX | 41 min |
| Oct 30, 4:08 AM CDT | Dense Fog Advisory | LIX | 4 hr |
| Oct 30, 8:25 AM CDT | Dense Fog Advisory | LIX | 95 min |
| Nov 1, 8:04 AM CDT | Special Weather Statement | LIX | 41 min |
| Nov 3, 2:15 AM CDT | Dense Fog Advisory | LIX | 7 hr |
| Nov 15, 10:56 PM CST | Dense Fog Advisory | LIX | 9 hr |
| Nov 20, 11:12 PM CST | Special Weather Statement | LIX | 3 hr |
| Nov 27, 3:35 PM CST | Wind Advisory | LIX | 26 hr |
| Nov 29, 8:50 PM CST | Tornado Watch | SPC | 8 hr |
| Nov 30, 3:33 AM CST | Mesoscale Discussion | SPC | 87 min |
| Nov 30, 4:57 AM CST | Tornado Watch | SPC | 7 hr |
| Dec 3, 8:50 PM CST | Mesoscale Discussion | SPC | 115 min |
| Dec 9, 3:54 PM CST | Freeze Warning | LIX | 16 hr |
| Dec 13, 1:11 AM CST | Dense Fog Advisory | LIX | 9 hr |
| Dec 18, 4:56 AM CST | Special Weather Statement | LIX | 64 min |
| Dec 23, 4:09 PM CST | Dense Fog Advisory | LIX | 18 hr |
| Dec 24, 3:04 PM CST | Dense Fog Advisory | LIX | 19 hr |
| Dec 27, 6:13 AM CST | Dense Fog Advisory | LIX | 6 hr |
| Dec 27, 3:30 PM CST | Dense Fog Advisory | LIX | 19 hr |
| Dec 30, 3:00 PM CST | Flood Watch | LIX | 3 days |
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 | 10 |
| Tornado Warning | 5 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 6 |
| Mesoscale Discussion | 21 |
| Special Weather Statement | 43 |
| Flooding | |
| Flash Flood Warning | 6 |
| Flash Flood Watch | 5 |
| Flood Watch | 1 |
| Areal Flood Advisory | 11 |
| Heat | |
| Heat Advisory | 7 |
| Cold | |
| Freeze Warning | 4 |
| Freeze Watch | 1 |
| Wind and dust | |
| Wind Advisory | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 15 |
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.