Alert archive / Arkansas / Union County
Weather alerts in Union County, Arkansas, 2019
148 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Union County and its neighbors
Each county as a circle sized by its count in 2019. Tap one for its archive.
- Alerts
- 148
- Warnings
- 43
- Watches
- 18
- Advisories
- 37
- Busiest month
- April28 alerts
- Busiest day
- April 7, 201910 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 2 tornado warnings covering Union County in 2019 had a tornado report inside them.
Union County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 1 | 50% | 0 | ||
| Severe thunderstorm warnings | 23 | 12 | 48% | 3 | 100% | 21 min |
| Flash flood warnings | 6 | 5 | 17% | 6 | 50% | 80 min |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Shreveport, LA: tornado warnings | 92 | 24 | 74% | 60 | 73% | 16 min |
| NWS Shreveport, LA: severe thunderstorm warnings | 327 | 180 | 45% | 449 | 72% | 23 min |
| NWS Shreveport, LA: flash flood warnings | 47 | 32 | 32% | 90 | 82% | 115 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 |
|---|---|---|---|
| Dec 31, 9:19 PM CST | River Flood Advisory | LZK | 36 hr |
| Jan 5, 2:51 AM CST | Freezing Fog Advisory | SHV | 5 hr |
| Jan 8, 1:27 AM CST | Dense Fog Advisory | SHV | 9 hr |
| Jan 18, 3:46 PM CST | Lake Wind Advisory | SHV | 30 hr |
| Jan 18, 5:50 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Jan 23, 1:35 AM CST | Special Weather Statement | SHV | 40 min |
| Jan 27, 4:25 AM CST | Dense Fog Advisory | SHV | 6 hr |
| Jan 27, 8:31 PM CST | Winter Weather Advisory | SHV | 31 hr |
| Feb 8, 4:12 PM CST | Winter Weather Advisory | SHV | 17 hr |
| Feb 11, 9:36 AM CST | River Flood Warning | LZK | 49 days |
| Feb 11, 2:25 PM CST | Lake Wind Advisory | SHV | 24 hr |
| Feb 13, 3:45 PM CST | Lake Wind Advisory | SHV | 26 hr |
| Feb 22, 5:52 PM CST | Mesoscale Discussion | SPC | 113 min |
| Feb 22, 7:37 PM CST | Dense Fog Advisory | SHV | 13 hr |
| Feb 23, 6:57 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 23, 9:18 AM CST | Lake Wind Advisory | SHV | 9 hr |
| Feb 23, 10:52 AM CST | Mesoscale Discussion | SPC | 113 min |
| Feb 23, 11:29 AM CST | Special Weather Statement | SHV | 46 min |
| Feb 23, 12:13 PM CST | Special Weather Statement | SHV | 47 min |
| Mar 3, 3:48 AM CST | Special Weather Statement | SHV | 42 min |
| Mar 4, 3:06 PM CST | Freeze Warning | SHV | 19 hr |
| Mar 5, 3:45 AM CST | Freeze Warning | SHV | 29 hr |
| Mar 8, 2:31 PM CST | Lake Wind Advisory | SHV | 25 hr |
| Mar 9, 6:58 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 9, 7:18 AM CST | Severe Thunderstorm Watch | SPC | 8 hr |
| Mar 9, 10:59 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 9, 11:05 AM CST | Tornado Watch | SPC | 4 hr |
| Mar 9, 11:20 AM CST | Severe Thunderstorm Warning | SHV | 40 min |
| Mar 9, 11:59 AM CST | Severe Thunderstorm Warning | SHV | 37 min |
| Mar 9, 12:28 PM CST | Special Weather Statement | SHV | 47 min |
| Mar 12, 3:49 PM CDT | Lake Wind Advisory | SHV | 31 hr |
| Mar 13, 7:11 PM CDT | Severe Thunderstorm Warning | SHV | 34 min |
| Mar 14, 1:59 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 14, 4:47 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Mar 14, 5:14 AM CDT | Severe Thunderstorm Warning | SHV | 61 min |
| Mar 15, 10:07 AM CDT | Lake Wind Advisory | SHV | 6 hr |
| Mar 30, 5:20 AM CDT | Lake Wind Advisory | SHV | 16 hr |
| Apr 1, 3:39 PM CDT | Freeze Warning | SHV | 17 hr |
| Apr 4, 2:50 AM CDT | Special Weather Statement | SHV | 40 min |
| Apr 6, 7:58 AM CDT | River Flood Warning | LZK | 69 days |
| Apr 6, 2:59 PM CDT | Special Weather Statement | SHV | 31 min |
| Apr 7, 4:49 AM CDT | Special Weather Statement | SHV | 26 min |
| Apr 7, 5:29 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 7, 7:21 AM CDT | Special Weather Statement | SHV | 24 min |
| Apr 7, 7:56 AM CDT | Areal Flood Advisory | SHV | 4 hr |
| Apr 7, 9:29 AM CDT | Flash Flood Warning | SHV | 4 hr |
| Apr 7, 1:11 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 7, 1:30 PM CDT | Flash Flood Warning | SHV | 3 hr |
| Apr 7, 2:59 PM CDT | Severe Thunderstorm Warning | SHV | 61 min |
| Apr 7, 3:35 PM CDT | Severe Thunderstorm Warning | SHV | 41 min |
| Apr 7, 4:30 PM CDT | Flash Flood Warning | SHV | 9 hr |
| Apr 8, 1:35 AM CDT | Areal Flood Warning | SHV | 12 hr |
| Apr 11, 4:23 AM CDT | Lake Wind Advisory | SHV | 11 hr |
| Apr 13, 2:53 AM CDT | Lake Wind Advisory | SHV | 37 hr |
| Apr 13, 3:27 AM CDT | Flash Flood Watch | SHV | 16 hr |
| Apr 13, 6:18 AM CDT | Severe Thunderstorm Warning | SHV | 42 min |
| Apr 13, 6:57 AM CDT | Severe Thunderstorm Warning | SHV | 48 min |
| Apr 13, 10:01 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 13, 2:42 PM CDT | Severe Thunderstorm Warning | SHV | 33 min |
| Apr 13, 2:47 PM CDT | Severe Thunderstorm Warning | SHV | 43 min |
| Apr 13, 3:43 PM CDT | Flash Flood Warning | SHV | 3 hr |
| Apr 16, 2:40 PM CDT | Flash Flood Watch | SHV | 49 hr |
| Apr 18, 3:51 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Apr 18, 5:19 AM CDT | Special Weather Statement | SHV | 41 min |
| Apr 19, 3:20 AM CDT | Lake Wind Advisory | SHV | 16 hr |
| May 7, 3:44 AM CDT | Flash Flood Watch | SHV | 55 hr |
| May 8, 3:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| May 8, 4:02 PM CDT | Tornado Watch | SPC | 5 hr |
| May 8, 4:17 PM CDT | Severe Thunderstorm Warning | SHV | 58 min |
| May 8, 4:22 PM CDT | Tornado Warning | SHV | 53 min |
| May 8, 5:03 PM CDT | Severe Thunderstorm Warning | SHV | 57 min |
| May 8, 5:55 PM CDT | Mesoscale Discussion | SPC | 95 min |
| May 9, 12:03 AM CDT | Flash Flood Warning | SHV | 5 hr |
| May 9, 4:28 AM CDT | Flash Flood Watch | SHV | 63 hr |
| May 18, 7:08 PM CDT | Tornado Watch | SPC | 7 hr |
| May 18, 8:29 PM CDT | Severe Thunderstorm Warning | SHV | 46 min |
| May 19, 6:37 PM CDT | Special Weather Statement | SHV | 23 min |
| May 19, 7:03 PM CDT | Special Weather Statement | SHV | 27 min |
| May 19, 7:21 PM CDT | Mesoscale Discussion | SPC | 84 min |
| May 19, 7:53 PM CDT | Special Weather Statement | SHV | 37 min |
| May 19, 8:31 PM CDT | Special Weather Statement | SHV | 29 min |
| May 20, 3:43 AM CDT | Lake Wind Advisory | SHV | 39 hr |
| Jun 4, 5:17 PM CDT | Areal Flood Advisory | SHV | 84 min |
| Jun 15, 7:08 PM CDT | Special Weather Statement | SHV | 22 min |
| Jun 15, 7:12 PM CDT | Severe Thunderstorm Warning | SHV | 33 min |
| Jun 19, 3:58 PM CDT | Tornado Watch | SPC | 8 hr |
| Jun 19, 8:35 PM CDT | Severe Thunderstorm Warning | SHV | 55 min |
| Jun 19, 11:51 PM CDT | Severe Thunderstorm Warning | SHV | 54 min |
| Jun 21, 3:01 AM CDT | Heat Advisory | SHV | 16 hr |
| Jun 22, 2:58 AM CDT | Heat Advisory | SHV | 16 hr |
| Jun 23, 3:29 AM CDT | Flash Flood Watch | SHV | 24 hr |
| Jun 23, 4:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 23, 6:41 PM CDT | Severe Thunderstorm Warning | SHV | 64 min |
| Jun 23, 7:20 PM CDT | Severe Thunderstorm Warning | SHV | 55 min |
| Jun 23, 7:23 PM CDT | Severe Thunderstorm Warning | SHV | 37 min |
| Jun 23, 10:04 PM CDT | Flash Flood Warning | SHV | 4 hr |
| Jun 23, 10:30 PM CDT | Special Weather Statement | SHV | 60 min |
| Jun 23, 11:35 PM CDT | Special Weather Statement | SHV | 55 min |
| Jun 24, 8:30 PM CDT | River Flood Advisory | LZK | 36 hr |
| Jun 26, 6:28 AM CDT | River Flood Warning | LZK | 3 days |
| Jun 28, 3:00 PM CDT | Special Weather Statement | SHV | 45 min |
| Jun 28, 3:26 PM CDT | Severe Thunderstorm Warning | SHV | 49 min |
| Jun 28, 4:05 PM CDT | Special Weather Statement | SHV | 40 min |
| Jun 28, 10:04 PM CDT | Special Weather Statement | SHV | 56 min |
| Jun 28, 10:38 PM CDT | Special Weather Statement | SHV | 52 min |
| Jun 28, 10:47 PM CDT | Severe Thunderstorm Warning | SHV | 31 min |
| Jun 28, 11:21 PM CDT | Special Weather Statement | SHV | 39 min |
| Jun 30, 4:33 PM CDT | Special Weather Statement | SHV | 42 min |
| Jun 30, 5:06 PM CDT | Special Weather Statement | SHV | 54 min |
| Jun 30, 5:52 PM CDT | Special Weather Statement | SHV | 53 min |
| Jul 4, 4:36 PM CDT | Special Weather Statement | SHV | 54 min |
| Jul 7, 10:04 AM CDT | Special Weather Statement | SHV | 56 min |
| Jul 8, 2:32 PM CDT | Heat Advisory | SHV | 3 days |
| Jul 12, 4:17 PM CDT | Flash Flood Watch | SHV | 4 days |
| Jul 12, 4:37 PM CDT | Lake Wind Advisory | SHV | 47 hr |
| Jul 15, 8:52 AM CDT | River Flood Warning | LZK | 18 days |
| Jul 15, 7:58 PM CDT | River Flood Warning | SHV | 18 days |
| Jul 17, 3:38 AM CDT | Heat Advisory | SHV | 15 hr |
| Jul 22, 3:03 PM CDT | Special Weather Statement | SHV | 42 min |
| Jul 30, 5:28 PM CDT | Special Weather Statement | SHV | 62 min |
| Aug 6, 1:01 PM CDT | Special Weather Statement | SHV | 44 min |
| Aug 6, 2:05 PM CDT | Special Weather Statement | SHV | 40 min |
| Aug 6, 3:56 PM CDT | Heat Advisory | SHV | 7 days |
| Aug 11, 3:23 PM CDT | Excessive Heat Warning | SHV | 52 hr |
| Aug 17, 4:11 AM CDT | Heat Advisory | SHV | 5 days |
| Sep 6, 3:08 AM CDT | Heat Advisory | SHV | 16 hr |
| Sep 7, 3:22 AM CDT | Heat Advisory | SHV | 16 hr |
| Oct 3, 5:00 PM CDT | Special Weather Statement | SHV | 45 min |
| Oct 15, 6:24 AM CDT | Areal Flood Advisory | SHV | 3 hr |
| Oct 15, 7:32 AM CDT | Areal Flood Advisory | SHV | 118 min |
| Oct 21, 1:50 AM CDT | Tornado Watch | SPC | 5 hr |
| Oct 21, 4:24 AM CDT | Severe Thunderstorm Warning | SHV | 66 min |
| Oct 26, 9:30 PM CDT | Dense Fog Advisory | SHV | 12 hr |
| Oct 31, 3:15 AM CDT | Freeze Warning | SHV | 30 hr |
| Nov 11, 3:33 AM CST | Lake Wind Advisory | SHV | 29 hr |
| Nov 24, 10:04 AM CST | River Flood Warning | LZK | 24 hr |
| Nov 26, 3:04 PM CST | Mesoscale Discussion | SPC | 116 min |
| Nov 26, 3:42 PM CST | Tornado Watch | SPC | 6 hr |
| Nov 26, 6:09 PM CST | Tornado Warning | SHV | 15 min |
| Nov 26, 6:24 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Nov 30, 9:46 AM CST | Mesoscale Discussion | SPC | 3 hr |
| Nov 30, 11:38 AM CST | Tornado Watch | SPC | 7 hr |
| Nov 30, 2:10 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 1, 2:47 AM CST | Lake Wind Advisory | SHV | 15 hr |
| Dec 14, 12:40 AM CST | Dense Fog Advisory | SHV | 8 hr |
| Dec 16, 10:02 AM CST | Mesoscale Discussion | SPC | 118 min |
| Dec 16, 10:40 AM CST | Tornado Watch | SPC | 9 hr |
| Dec 16, 11:20 AM CST | Severe Thunderstorm Warning | SHV | 55 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 | 23 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 8 |
| Mesoscale Discussion | 18 |
| Special Weather Statement | 32 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 6 |
| River Flood Warning | 6 |
| Flash Flood Watch | 6 |
| Areal Flood Advisory | 4 |
| River Flood Advisory | 2 |
| Winter | |
| Winter Weather Advisory | 2 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 8 |
| Cold | |
| Freeze Warning | 4 |
| Wind and dust | |
| Lake Wind Advisory | 15 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20182020
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.