Alert archive / Arkansas / Calhoun County
Weather alerts in Calhoun County, Arkansas, 2018
138 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Calhoun County and its neighbors
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Alerts
- 138
- Warnings
- 51
- Watches
- 19
- Advisories
- 22
- Busiest month
- June22 alerts
- Busiest day
- June 22, 201814 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 3 tornado warnings covering Calhoun County in 2018 had a tornado report inside them.
Calhoun County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 18 | 5 | 72% | 0 | ||
| Flash flood warnings | 12 | 3 | 75% | 2 | 100% | 38 min |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Little Rock, AR: tornado warnings | 45 | 6 | 87% | 13 | 77% | 9 min |
| NWS Little Rock, AR: severe thunderstorm warnings | 406 | 187 | 54% | 377 | 84% | 21 min |
| NWS Little Rock, AR: flash flood warnings | 139 | 53 | 62% | 109 | 94% | 89 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 11, 3:57 AM CST | Winter Weather Advisory | LZK | 29 hr |
| Jan 11, 1:49 PM CST | Lake Wind Advisory | LZK | 22 hr |
| Jan 12, 3:38 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 15, 4:12 AM CST | Winter Storm Warning | LZK | 28 hr |
| Jan 21, 9:35 PM CST | Mesoscale Discussion | SPC | 115 min |
| Jan 21, 9:59 PM CST | Tornado Watch | SPC | 6 hr |
| Jan 22, 1:16 AM CST | Mesoscale Discussion | SPC | 119 min |
| Feb 6, 3:29 PM CST | Special Weather Statement | LZK | 46 min |
| Feb 17, 10:45 PM CST | Dense Fog Advisory | LZK | 10 hr |
| Feb 19, 2:45 PM CST | Flood Watch | LZK | 5 days |
| Feb 20, 9:31 AM CST | River Flood Warning | LZK | 28 days |
| Feb 20, 9:31 AM CST | River Flood Warning | LZK | 71 days |
| Feb 21, 2:48 PM CST | Areal Flood Warning | LZK | 15 hr |
| Feb 24, 10:26 AM CST | Mesoscale Discussion | SPC | 64 min |
| Feb 24, 11:01 AM CST | Tornado Watch | SPC | 8 hr |
| Feb 24, 1:39 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 24, 4:01 PM CST | Flash Flood Warning | LZK | 6 hr |
| Feb 24, 4:07 PM CST | Flash Flood Warning | LZK | 6 hr |
| Feb 24, 6:41 PM CST | Severe Thunderstorm Warning | LZK | 37 min |
| Feb 24, 9:45 PM CST | Flash Flood Warning | LZK | 3 hr |
| Feb 26, 2:51 PM CST | Flood Watch | LZK | 69 hr |
| Feb 27, 3:37 PM CST | Special Weather Statement | LZK | 53 min |
| Feb 28, 4:37 PM CST | Severe Thunderstorm Warning | LZK | 38 min |
| Feb 28, 11:53 PM CST | Flash Flood Warning | LZK | 8 hr |
| Mar 1, 1:04 AM CST | Flash Flood Warning | LZK | 7 hr |
| Mar 1, 8:08 AM CST | Areal Flood Warning | LZK | 9 hr |
| Mar 10, 3:43 PM CST | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 10, 5:57 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 11, 12:41 AM CST | Special Weather Statement | LZK | 49 min |
| Mar 11, 1:23 AM CST | Special Weather Statement | LZK | 37 min |
| Mar 11, 1:56 AM CST | Special Weather Statement | LZK | 49 min |
| Mar 26, 3:41 AM CDT | Flood Watch | LZK | 66 hr |
| Mar 26, 9:07 AM CDT | River Flood Warning | LZK | 4 days |
| Apr 3, 1:33 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 6, 10:47 AM CDT | River Flood Warning | LZK | 14 days |
| Apr 7, 3:17 AM CDT | Freeze Warning | LZK | 30 hr |
| Apr 13, 12:41 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 13, 1:50 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 13, 5:53 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Apr 13, 8:54 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Apr 13, 9:53 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 14, 12:21 AM CDT | Tornado Warning | LZK | 25 min |
| Apr 14, 1:36 AM CDT | Special Weather Statement | LZK | 39 min |
| Apr 14, 2:08 AM CDT | Tornado Warning | LZK | 23 min |
| Apr 14, 2:10 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 14, 2:15 AM CDT | Special Weather Statement | LZK | 60 min |
| Apr 15, 3:26 AM CDT | Freeze Warning | LZK | 30 hr |
| Apr 21, 9:19 AM CDT | River Flood Warning | LZK | 3 days |
| May 6, 7:45 PM CDT | Special Weather Statement | LZK | 45 min |
| May 15, 3:44 PM CDT | Severe Thunderstorm Warning | LZK | 46 min |
| May 15, 4:08 PM CDT | Special Weather Statement | LZK | 52 min |
| May 15, 4:30 PM CDT | Severe Thunderstorm Warning | LZK | 45 min |
| May 16, 6:48 PM CDT | Severe Thunderstorm Warning | LZK | 42 min |
| May 16, 6:54 PM CDT | Severe Thunderstorm Warning | LZK | 36 min |
| May 16, 7:42 PM CDT | Special Weather Statement | LZK | 33 min |
| May 26, 7:09 PM CDT | Special Weather Statement | LZK | 36 min |
| May 26, 7:18 PM CDT | Severe Thunderstorm Warning | LZK | 27 min |
| May 26, 7:49 PM CDT | Flash Flood Warning | LZK | 3 hr |
| Jun 2, 3:51 AM CDT | Heat Advisory | LZK | 15 hr |
| Jun 3, 1:43 AM CDT | Special Weather Statement | LZK | 47 min |
| Jun 13, 5:11 PM CDT | Severe Thunderstorm Warning | LZK | 49 min |
| Jun 13, 5:51 PM CDT | Flash Flood Warning | LZK | 3 hr |
| Jun 22, 5:35 AM CDT | Special Weather Statement | LZK | 40 min |
| Jun 22, 5:42 AM CDT | Severe Thunderstorm Warning | LZK | 48 min |
| Jun 22, 7:51 AM CDT | Special Weather Statement | LZK | 39 min |
| Jun 22, 8:24 AM CDT | Special Weather Statement | LZK | 51 min |
| Jun 22, 8:38 AM CDT | Severe Thunderstorm Warning | LZK | 52 min |
| Jun 22, 8:39 AM CDT | Flash Flood Warning | LZK | 3 hr |
| Jun 22, 8:42 AM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 22, 10:48 AM CDT | Flash Flood Warning | LZK | 3 hr |
| Jun 22, 11:43 AM CDT | Areal Flood Warning | LZK | 2 hr |
| Jun 22, 12:59 PM CDT | Special Weather Statement | LZK | 31 min |
| Jun 22, 1:14 PM CDT | Severe Thunderstorm Warning | LZK | 31 min |
| Jun 22, 1:45 PM CDT | Severe Thunderstorm Warning | LZK | 30 min |
| Jun 22, 2:13 PM CDT | Tornado Warning | LZK | 32 min |
| Jun 22, 2:21 PM CDT | Flash Flood Warning | LZK | 3 hr |
| Jun 24, 7:37 AM CDT | Mesoscale Discussion | SPC | 113 min |
| Jun 24, 4:53 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 24, 7:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jun 27, 2:42 PM CDT | Heat Advisory | LZK | 3 days |
| Jul 5, 2:44 AM CDT | Heat Advisory | LZK | 17 hr |
| Jul 6, 8:00 PM CDT | Special Weather Statement | LZK | 45 min |
| Jul 13, 3:21 AM CDT | Heat Advisory | LZK | 17 hr |
| Jul 15, 3:33 AM CDT | Heat Advisory | LZK | 15 hr |
| Jul 17, 3:57 AM CDT | Heat Advisory | LZK | 15 hr |
| Jul 18, 2:43 PM CDT | Heat Advisory | LZK | 30 hr |
| Jul 18, 2:43 PM CDT | Heat Advisory | LZK | 37 hr |
| Jul 19, 8:54 PM CDT | Severe Thunderstorm Watch | SPC | 114 min |
| Jul 20, 3:37 AM CDT | Excessive Heat Warning | LZK | 17 hr |
| Jul 20, 3:04 PM CDT | Heat Advisory | LZK | 28 hr |
| Jul 20, 9:08 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 21, 2:33 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 21, 3:41 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 29, 2:30 AM CDT | Dense Fog Advisory | LZK | 7 hr |
| Jul 30, 9:50 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Jul 31, 8:41 AM CDT | Special Weather Statement | LZK | 49 min |
| Aug 8, 4:20 PM CDT | Severe Thunderstorm Warning | LZK | 40 min |
| Aug 8, 4:37 PM CDT | Severe Thunderstorm Warning | LZK | 53 min |
| Aug 8, 5:14 PM CDT | Severe Thunderstorm Warning | LZK | 61 min |
| Aug 9, 4:18 AM CDT | Flash Flood Warning | LZK | 3 hr |
| Aug 10, 5:36 AM CDT | Special Weather Statement | LZK | 39 min |
| Aug 16, 2:27 PM CDT | Heat Advisory | LZK | 5 hr |
| Aug 17, 3:39 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 18, 11:36 PM CDT | Special Weather Statement | LZK | 39 min |
| Aug 19, 12:23 AM CDT | Special Weather Statement | LZK | 37 min |
| Aug 19, 12:34 AM CDT | Flash Flood Warning | LZK | 2 hr |
| Aug 29, 7:21 PM CDT | Special Weather Statement | LZK | 24 min |
| Sep 4, 2:25 PM CDT | Flash Flood Watch | LZK | 4 days |
| Sep 20, 2:15 PM CDT | Flash Flood Watch | LZK | 65 hr |
| Oct 9, 6:22 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Oct 31, 3:55 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Oct 31, 4:11 PM CDT | Tornado Watch | SPC | 8 hr |
| Nov 1, 9:12 AM CDT | River Flood Warning | LZK | 3 days |
| Nov 6, 12:49 AM CST | Dense Fog Advisory | LZK | 11 hr |
| Nov 8, 3:56 AM CST | Freeze Watch | LZK | 24 hr |
| Nov 8, 8:33 PM CST | Freeze Warning | LZK | 36 hr |
| Nov 13, 2:57 PM CST | Winter Weather Advisory | LZK | 39 hr |
| Nov 14, 10:11 AM CST | River Flood Advisory | LZK | 36 hr |
| Nov 15, 9:33 AM CST | River Flood Warning | LZK | 3 days |
| Nov 23, 10:10 PM CST | Dense Fog Advisory | LZK | 13 hr |
| Nov 30, 3:34 PM CST | Mesoscale Discussion | SPC | 116 min |
| Nov 30, 6:17 PM CST | Mesoscale Discussion | SPC | 58 min |
| Nov 30, 6:40 PM CST | Tornado Watch | SPC | 7 hr |
| Nov 30, 9:02 PM CST | Mesoscale Discussion | SPC | 58 min |
| Nov 30, 11:20 PM CST | Mesoscale Discussion | SPC | 85 min |
| Dec 1, 12:58 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 1, 1:58 AM CST | Tornado Watch | SPC | 5 hr |
| Dec 1, 2:05 AM CST | Severe Thunderstorm Warning | LZK | 40 min |
| Dec 1, 2:44 AM CST | Severe Thunderstorm Warning | LZK | 46 min |
| Dec 8, 10:49 AM CST | River Flood Warning | LZK | 17 days |
| Dec 8, 10:52 AM CST | River Flood Warning | LZK | 59 days |
| Dec 14, 6:28 AM CST | Severe Thunderstorm Warning | LZK | 17 min |
| Dec 16, 8:22 PM CST | Dense Fog Advisory | LZK | 16 hr |
| Dec 17, 9:47 PM CST | Dense Fog Advisory | LZK | 12 hr |
| Dec 18, 9:42 PM CST | Dense Fog Advisory | LZK | 11 hr |
| Dec 26, 1:11 PM CST | Wind Advisory | LZK | 23 hr |
| Dec 27, 1:39 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 27, 9:32 PM CST | River Flood Warning | LZK | 17 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 | 18 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 8 |
| Mesoscale Discussion | 24 |
| Special Weather Statement | 22 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 12 |
| River Flood Warning | 10 |
| Flash Flood Watch | 2 |
| Flood Watch | 3 |
| River Flood Advisory | 1 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Weather Advisory | 2 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 10 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 1 |
| Wind and dust | |
| Lake Wind Advisory | 1 |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 7 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.