Alert archive / Mississippi / Clarke County
Weather alerts in Clarke County, Mississippi, 2015
130 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Clarke County and its neighbors
Each county as a circle sized by its count in 2015. Tap one for its archive.
- Alerts
- 130
- Warnings
- 29
- Watches
- 16
- Advisories
- 23
- Busiest month
- December21 alerts
- Busiest day
- December 23, 20158 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 1 tornado warnings covering Clarke County in 2015 had a tornado report inside them.
Clarke County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 18 | 7 | 61% | 6 | 100% | 14 min |
| Flash flood warnings | 2 | 1 | 50% | 5 | 100% | 32 min |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Jackson, MS: tornado warnings | 53 | 18 | 66% | 67 | 81% | 17 min |
| NWS Jackson, MS: severe thunderstorm warnings | 441 | 223 | 49% | 526 | 75% | 22 min |
| NWS Jackson, MS: flash flood warnings | 95 | 42 | 56% | 113 | 76% | 67 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, 3:01 PM CST | Flash Flood Watch | JAN | 33 hr |
| Jan 3, 10:24 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Jan 3, 11:04 AM CST | Tornado Watch | SPC | 7 hr |
| Jan 3, 1:43 PM CST | Mesoscale Discussion | SPC | 92 min |
| Jan 3, 2:54 PM CST | Mesoscale Discussion | SPC | 96 min |
| Jan 3, 5:31 PM CST | Mesoscale Discussion | SPC | 44 min |
| Jan 3, 9:42 PM CST | River Flood Warning | JAN | 4 days |
| Jan 3, 10:03 PM CST | Areal Flood Warning | JAN | 10 hr |
| Jan 6, 5:05 AM CST | Hard Freeze Watch | JAN | 22 hr |
| Jan 6, 3:14 PM CST | Hard Freeze Warning | JAN | 51 hr |
| Jan 7, 3:23 AM CST | Wind Chill Advisory | JAN | 30 hr |
| Jan 7, 2:49 PM CST | Wind Advisory | JAN | 3 hr |
| Jan 8, 9:59 PM CST | Winter Weather Advisory | JAN | 14 hr |
| Jan 9, 11:52 AM CST | Winter Weather Advisory | JAN | 2 hr |
| Feb 1, 6:54 PM CST | Severe Thunderstorm Warning | JAN | 38 min |
| Feb 16, 1:46 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 16, 2:45 PM CST | Winter Weather Advisory | JAN | 7 hr |
| Feb 20, 6:17 AM CST | Freezing Rain Advisory | JAN | 5 hr |
| Feb 22, 4:21 AM CST | Freezing Rain Advisory | JAN | 53 hr |
| Feb 23, 7:42 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Mar 2, 1:54 AM CST | Dense Fog Advisory | JAN | 8 hr |
| Mar 2, 2:39 PM CST | Dense Fog Advisory | JAN | 18 hr |
| Mar 10, 12:37 PM CDT | Flash Flood Watch | JAN | 8 hr |
| Mar 15, 5:03 AM CDT | Dense Fog Advisory | JAN | 5 hr |
| Mar 18, 10:32 PM CDT | Severe Thunderstorm Warning | JAN | 43 min |
| Mar 18, 11:08 PM CDT | Special Weather Statement | JAN | 32 min |
| Mar 26, 2:48 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 6, 1:06 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Apr 15, 6:30 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 18, 6:17 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 19, 2:06 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Apr 21, 6:11 AM CDT | River Flood Warning | JAN | 29 hr |
| Apr 25, 12:50 AM CDT | Tornado Watch | SPC | 6 hr |
| Apr 25, 2:07 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Apr 25, 4:12 AM CDT | Mesoscale Discussion | SPC | 63 min |
| May 19, 5:32 AM CDT | Dense Fog Advisory | JAN | 3 hr |
| May 25, 2:38 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 27, 11:51 AM CDT | Mesoscale Discussion | SPC | 54 min |
| May 27, 12:43 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 27, 3:06 PM CDT | Severe Thunderstorm Warning | JAN | 39 min |
| May 27, 3:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| May 30, 5:16 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Jun 1, 4:09 AM CDT | Dense Fog Advisory | JAN | 5 hr |
| Jun 10, 4:58 PM CDT | Severe Thunderstorm Warning | JAN | 42 min |
| Jun 13, 12:59 PM CDT | Special Weather Statement | JAN | 46 min |
| Jun 13, 2:00 PM CDT | Special Weather Statement | JAN | 45 min |
| Jun 14, 2:34 PM CDT | Special Weather Statement | JAN | 26 min |
| Jun 14, 2:57 PM CDT | Special Weather Statement | JAN | 33 min |
| Jun 17, 5:48 PM CDT | Severe Thunderstorm Warning | JAN | 21 min |
| Jun 17, 6:16 PM CDT | Special Weather Statement | JAN | 29 min |
| Jun 19, 4:14 PM CDT | Severe Thunderstorm Warning | JAN | 31 min |
| Jun 21, 2:51 PM CDT | Severe Thunderstorm Warning | JAN | 39 min |
| Jun 24, 4:08 AM CDT | Special Weather Statement | JAN | 37 min |
| Jun 24, 4:47 AM CDT | Special Weather Statement | JAN | 28 min |
| Jun 24, 11:14 AM CDT | Special Weather Statement | JAN | 31 min |
| Jun 24, 11:22 AM CDT | Severe Thunderstorm Warning | JAN | 53 min |
| Jun 24, 8:18 PM CDT | Special Weather Statement | JAN | 27 min |
| Jul 3, 5:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 4, 11:36 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Jul 4, 1:12 PM CDT | Severe Thunderstorm Warning | JAN | 48 min |
| Jul 4, 1:59 PM CDT | Special Weather Statement | JAN | 31 min |
| Jul 4, 2:16 PM CDT | Severe Thunderstorm Warning | JAN | 44 min |
| Jul 12, 3:28 AM CDT | Heat Advisory | JAN | 11 days |
| Jul 19, 2:25 PM CDT | Special Weather Statement | JAN | 35 min |
| Jul 21, 6:54 PM CDT | Special Weather Statement | JAN | 36 min |
| Jul 24, 3:51 PM CDT | Special Weather Statement | JAN | 39 min |
| Jul 24, 9:37 PM CDT | Heat Advisory | JAN | 6 days |
| Jul 29, 1:44 PM CDT | Special Weather Statement | JAN | 31 min |
| Jul 29, 2:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 30, 5:27 PM CDT | Severe Thunderstorm Warning | JAN | 20 min |
| Aug 7, 3:05 PM CDT | Heat Advisory | JAN | 37 hr |
| Aug 8, 4:57 AM CDT | Excessive Heat Warning | JAN | 62 hr |
| Aug 8, 4:18 PM CDT | Special Weather Statement | JAN | 27 min |
| Aug 8, 4:38 PM CDT | Special Weather Statement | JAN | 37 min |
| Aug 8, 4:55 PM CDT | Severe Thunderstorm Warning | JAN | 50 min |
| Aug 10, 4:06 AM CDT | Heat Advisory | JAN | 39 hr |
| Aug 11, 7:51 AM CDT | Special Weather Statement | JAN | 24 min |
| Aug 11, 8:19 AM CDT | Special Weather Statement | JAN | 26 min |
| Aug 11, 8:55 AM CDT | Special Weather Statement | JAN | 35 min |
| Aug 11, 3:49 PM CDT | Special Weather Statement | JAN | 26 min |
| Aug 18, 3:38 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 19, 12:30 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 20, 4:48 PM CDT | Special Weather Statement | JAN | 42 min |
| Aug 20, 5:45 PM CDT | Special Weather Statement | JAN | 45 min |
| Aug 21, 5:09 PM CDT | Special Weather Statement | JAN | 51 min |
| Aug 21, 5:57 PM CDT | Special Weather Statement | JAN | 48 min |
| Aug 23, 2:27 PM CDT | Special Weather Statement | JAN | 48 min |
| Aug 23, 3:19 PM CDT | Special Weather Statement | JAN | 26 min |
| Sep 10, 3:21 PM CDT | Special Weather Statement | JAN | 24 min |
| Sep 10, 4:02 PM CDT | Special Weather Statement | JAN | 28 min |
| Oct 15, 2:12 PM CDT | Fire Weather Watch | JAN | 3 days |
| Oct 26, 4:55 AM CDT | Wind Advisory | JAN | 14 hr |
| Oct 31, 3:54 AM CDT | Flash Flood Watch | JAN | 20 hr |
| Oct 31, 11:45 AM CDT | Tornado Watch | SPC | 8 hr |
| Oct 31, 4:46 PM CDT | Severe Thunderstorm Warning | JAN | 44 min |
| Oct 31, 5:14 PM CDT | Flash Flood Warning | JAN | 2 hr |
| Oct 31, 5:21 PM CDT | Severe Thunderstorm Warning | JAN | 24 min |
| Oct 31, 7:16 PM CDT | Areal Flood Warning | JAN | 3 hr |
| Nov 1, 3:18 AM CST | Flash Flood Watch | JAN | 12 hr |
| Nov 16, 10:35 AM CST | Flash Flood Watch | JAN | 43 hr |
| Nov 16, 3:11 PM CST | Wind Advisory | JAN | 27 hr |
| Nov 17, 7:45 PM CST | Tornado Watch | SPC | 7 hr |
| Nov 18, 1:14 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Nov 18, 2:49 AM CST | Tornado Watch | SPC | 6 hr |
| Nov 18, 3:31 AM CST | Special Weather Statement | JAN | 44 min |
| Nov 18, 10:41 AM CST | River Flood Warning | JAN | 72 hr |
| Nov 18, 8:25 PM CST | Dense Fog Advisory | JAN | 13 hr |
| Nov 21, 3:56 AM CST | Freeze Warning | JAN | 53 hr |
| Nov 28, 4:30 AM CST | Dense Fog Advisory | JAN | 5 hr |
| Dec 10, 12:03 AM CST | Dense Fog Advisory | JAN | 9 hr |
| Dec 12, 2:50 PM CST | Wind Advisory | JAN | 33 hr |
| Dec 22, 5:00 AM CST | Dense Fog Advisory | JAN | 5 hr |
| Dec 23, 9:08 AM CST | Special Weather Statement | JAN | 37 min |
| Dec 23, 1:33 PM CST | Mesoscale Discussion | SPC | 57 min |
| Dec 23, 2:17 PM CST | Tornado Watch | SPC | 6 hr |
| Dec 23, 4:48 PM CST | Special Weather Statement | JAN | 42 min |
| Dec 23, 5:09 PM CST | Tornado Warning | JAN | 24 min |
| Dec 23, 5:12 PM CST | Mesoscale Discussion | SPC | 63 min |
| Dec 23, 5:29 PM CST | Flash Flood Warning | JAN | 3 hr |
| Dec 23, 5:37 PM CST | Special Weather Statement | JAN | 23 min |
| Dec 23, 8:20 PM CST | Tornado Watch | SPC | 8 hr |
| Dec 24, 4:39 PM CST | Severe Thunderstorm Warning | JAN | 25 min |
| Dec 24, 6:32 PM CST | Severe Thunderstorm Warning | JAN | 58 min |
| Dec 25, 4:27 PM CST | Severe Thunderstorm Warning | JAN | 48 min |
| Dec 25, 4:28 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Dec 28, 2:03 AM CST | Mesoscale Discussion | SPC | 117 min |
| Dec 28, 2:23 AM CST | Tornado Watch | SPC | 8 hr |
| Dec 28, 5:14 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 28, 7:03 AM CST | Special Weather Statement | JAN | 42 min |
| Dec 28, 7:33 AM CST | Severe Thunderstorm Warning | JAN | 45 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 | 18 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 8 |
| Mesoscale Discussion | 28 |
| Special Weather Statement | 34 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 2 |
| River Flood Warning | 3 |
| Flash Flood Watch | 5 |
| Winter | |
| Freezing Rain Advisory | 2 |
| Winter Weather Advisory | 3 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 4 |
| Cold | |
| Freeze Warning | 1 |
| Hard Freeze Warning | 1 |
| Hard Freeze Watch | 1 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 4 |
| Fire | |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
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.