Alert archive / Mississippi / Perry County
Weather alerts in Perry County, Mississippi, 2013
130 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Perry County and its neighbors
Each county as a circle sized by its count in 2013. Tap one for its archive.
- Alerts
- 130
- Warnings
- 43
- Watches
- 22
- Advisories
- 31
- Busiest month
- February38 alerts
- Busiest day
- February 11, 20138 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 4 tornado warnings covering Perry County in 2013 had a tornado report inside them.
Perry County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 12 | 4 | 67% | 6 | 67% | 13 min |
| Flash flood warnings | 3 | 2 | 33% | 0 |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Mobile, AL: tornado warnings | 23 | 3 | 87% | 9 | 78% | 35 min |
| NWS Mobile, AL: severe thunderstorm warnings | 131 | 30 | 77% | 66 | 71% | 21 min |
| NWS Mobile, AL: flash flood warnings | 55 | 19 | 65% | 47 | 87% | 110 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 10, 11:35 AM CST | Mesoscale Discussion | SPC | 85 min |
| Jan 13, 2:30 PM CST | Mesoscale Discussion | SPC | 90 min |
| Jan 13, 5:37 PM CST | Tornado Warning | MOB | 38 min |
| Jan 14, 10:31 AM CST | River Flood Warning | MOB | 9 days |
| Jan 16, 3:11 PM CST | Wind Advisory | MOB | 27 hr |
| Jan 29, 8:20 PM CST | Wind Advisory | MOB | 22 hr |
| Jan 30, 4:27 AM CST | Mesoscale Discussion | SPC | 93 min |
| Jan 30, 5:01 AM CST | Mesoscale Discussion | SPC | 29 min |
| Jan 30, 5:15 AM CST | Tornado Watch | SPC | 7 hr |
| Jan 30, 7:43 AM CST | Mesoscale Discussion | SPC | 62 min |
| Jan 30, 10:18 AM CST | Areal Flood Advisory | MOB | 74 days |
| Feb 5, 9:42 PM CST | Dense Fog Advisory | MOB | 11 hr |
| Feb 10, 4:22 AM CST | Flash Flood Watch | MOB | 65 hr |
| Feb 10, 3:14 PM CST | Tornado Watch | SPC | 8 hr |
| Feb 10, 3:39 PM CST | Severe Thunderstorm Warning | MOB | 51 min |
| Feb 10, 3:47 PM CST | Mesoscale Discussion | SPC | 88 min |
| Feb 10, 5:03 PM CST | Mesoscale Discussion | SPC | 27 min |
| Feb 10, 5:17 PM CST | Tornado Warning | MOB | 58 min |
| Feb 10, 6:23 PM CST | Mesoscale Discussion | SPC | 97 min |
| Feb 10, 9:32 PM CST | Mesoscale Discussion | SPC | 88 min |
| Feb 11, 12:14 AM CST | Flash Flood Warning | MOB | 6 hr |
| Feb 11, 1:55 AM CST | Mesoscale Discussion | SPC | 95 min |
| Feb 11, 2:47 AM CST | River Flood Warning | MOB | 43 hr |
| Feb 11, 6:29 AM CST | Areal Flood Warning | MOB | 6 hr |
| Feb 11, 9:49 AM CST | River Flood Warning | MOB | 10 days |
| Feb 11, 12:14 PM CST | Areal Flood Warning | MOB | 18 hr |
| Feb 11, 11:43 PM CST | Mesoscale Discussion | SPC | 92 min |
| Feb 12, 6:01 AM CST | Areal Flood Warning | MOB | 6 hr |
| Feb 12, 11:45 AM CST | Areal Flood Warning | MOB | 24 hr |
| Feb 12, 1:57 PM CST | Mesoscale Discussion | SPC | 63 min |
| Feb 12, 3:35 PM CST | Mesoscale Discussion | SPC | 85 min |
| Feb 13, 9:12 AM CST | River Flood Warning | MOB | 5 days |
| Feb 15, 3:05 PM CST | Wind Advisory | MOB | 26 hr |
| Feb 16, 2:04 PM CST | Freeze Warning | MOB | 16 hr |
| Feb 18, 10:23 AM CST | Wind Advisory | MOB | 7 hr |
| Feb 21, 4:02 AM CST | Wind Advisory | MOB | 14 hr |
| Feb 21, 11:57 PM CST | Mesoscale Discussion | SPC | 63 min |
| Feb 22, 10:29 AM CST | River Flood Warning | MOB | 8 days |
| Feb 22, 1:28 PM CST | Mesoscale Discussion | SPC | 62 min |
| Feb 22, 7:44 PM CST | Mesoscale Discussion | SPC | 91 min |
| Feb 22, 10:29 PM CST | Severe Thunderstorm Warning | MOB | 61 min |
| Feb 24, 3:51 AM CST | Flash Flood Watch | MOB | 50 hr |
| Feb 24, 3:54 AM CST | Dense Fog Advisory | MOB | 5 hr |
| Feb 25, 9:07 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 25, 2:52 PM CST | Mesoscale Discussion | SPC | 83 min |
| Feb 25, 3:36 PM CST | Wind Advisory | MOB | 26 hr |
| Feb 25, 3:54 PM CST | Tornado Watch | SPC | 6 hr |
| Feb 25, 6:54 PM CST | Areal Flood Warning | MOB | 6 hr |
| Feb 25, 7:57 PM CST | Mesoscale Discussion | SPC | 63 min |
| Mar 5, 3:43 AM CST | Wind Advisory | MOB | 14 hr |
| Mar 10, 4:00 AM CDT | Wind Advisory | MOB | 74 min |
| Mar 10, 5:14 AM CDT | Wind Advisory | MOB | 14 hr |
| Mar 18, 4:34 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 23, 12:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Mar 23, 12:56 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Mar 23, 2:52 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Mar 23, 5:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Mar 24, 7:11 AM CDT | Wind Advisory | MOB | 12 hr |
| Mar 24, 2:58 PM CDT | Fire Weather Watch | MOB | 16 hr |
| Mar 24, 7:22 PM CDT | Wind Advisory | MOB | 3 hr |
| Mar 25, 4:04 AM CDT | Freeze Watch | MOB | 10 hr |
| Mar 25, 4:04 AM CDT | Wind Advisory | MOB | 14 hr |
| Mar 25, 6:32 AM CDT | Red Flag Warning | MOB | 12 hr |
| Mar 25, 1:45 PM CDT | Freeze Warning | MOB | 18 hr |
| Mar 26, 2:23 AM CDT | Freeze Warning | MOB | 30 hr |
| Mar 27, 3:31 PM CDT | Freeze Warning | MOB | 16 hr |
| Mar 31, 3:21 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Mar 31, 3:38 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Mar 31, 5:55 PM CDT | Severe Thunderstorm Warning | MOB | 50 min |
| Apr 11, 3:49 AM CDT | Wind Advisory | MOB | 15 hr |
| Apr 11, 6:55 AM CDT | Mesoscale Discussion | SPC | 65 min |
| Apr 11, 8:00 AM CDT | Tornado Watch | SPC | 8 hr |
| Apr 11, 12:53 PM CDT | Mesoscale Discussion | SPC | 82 min |
| Apr 11, 1:19 PM CDT | Tornado Warning | MOB | 41 min |
| Apr 11, 1:24 PM CDT | Severe Thunderstorm Warning | MOB | 51 min |
| Apr 11, 1:52 PM CDT | Severe Thunderstorm Warning | MOB | 53 min |
| Apr 11, 2:18 PM CDT | Tornado Warning | MOB | 42 min |
| Apr 14, 11:14 AM CDT | Areal Flood Warning | MOB | 12 hr |
| Apr 14, 2:57 PM CDT | Dense Fog Advisory | MOB | 15 hr |
| Apr 14, 8:46 PM CDT | River Flood Warning | MOB | 4 days |
| Apr 28, 11:02 AM CDT | Areal Flood Advisory | MOB | 3 hr |
| May 1, 12:32 PM CDT | Areal Flood Advisory | MOB | 6 hr |
| May 1, 2:21 PM CDT | Areal Flood Warning | MOB | 12 hr |
| May 1, 3:19 PM CDT | Flash Flood Watch | MOB | 24 hr |
| May 1, 8:39 PM CDT | River Flood Warning | MOB | 6 days |
| May 2, 2:28 AM CDT | Areal Flood Warning | MOB | 12 hr |
| May 11, 10:27 AM CDT | River Flood Warning | MOB | 69 hr |
| May 30, 10:35 AM CDT | Wind Advisory | MOB | 7 hr |
| Jun 1, 5:11 PM CDT | Severe Thunderstorm Warning | MOB | 49 min |
| Jun 5, 7:09 PM CDT | Areal Flood Advisory | MOB | 111 min |
| Jun 5, 8:56 PM CDT | Flash Flood Warning | MOB | 3 hr |
| Jun 8, 3:07 PM CDT | Severe Thunderstorm Warning | MOB | 38 min |
| Jun 8, 4:43 PM CDT | Severe Thunderstorm Warning | MOB | 47 min |
| Jun 9, 3:04 PM CDT | Areal Flood Advisory | MOB | 116 min |
| Jun 24, 12:00 PM CDT | Areal Flood Advisory | MOB | 2 hr |
| Jun 28, 11:26 AM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 28, 1:11 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jun 28, 3:23 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jun 28, 8:02 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 29, 5:22 PM CDT | Severe Thunderstorm Warning | MOB | 68 min |
| Jul 4, 2:11 PM CDT | Flash Flood Watch | MOB | 70 hr |
| Jul 4, 11:14 PM CDT | Areal Flood Advisory | MOB | 3 hr |
| Jul 4, 11:32 PM CDT | Flash Flood Warning | MOB | 3 hr |
| Jul 18, 6:33 PM CDT | Severe Thunderstorm Warning | MOB | 27 min |
| Jul 18, 6:42 PM CDT | Severe Thunderstorm Warning | MOB | 33 min |
| Jul 23, 1:15 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 23, 2:31 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jul 24, 5:57 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 27, 4:29 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 5, 2:40 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Aug 13, 4:02 PM CDT | Areal Flood Advisory | MOB | 118 min |
| Aug 14, 3:23 AM CDT | Flash Flood Watch | MOB | 11 hr |
| Sep 3, 7:30 PM CDT | Severe Thunderstorm Warning | MOB | 60 min |
| Sep 20, 3:33 PM CDT | Flash Flood Watch | MOB | 30 hr |
| Sep 21, 4:35 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Sep 24, 1:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Sep 24, 2:03 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 24, 3:46 PM CDT | Areal Flood Advisory | MOB | 119 min |
| Oct 10, 8:03 PM CDT | Dense Fog Advisory | MOB | 13 hr |
| Oct 25, 3:15 PM CDT | Frost Advisory | MOB | 17 hr |
| Nov 11, 3:45 PM CST | Freeze Watch | MOB | 16 hr |
| Nov 12, 4:15 AM CST | Freeze Watch | MOB | 25 hr |
| Nov 12, 4:15 AM CST | Freeze Warning | MOB | 28 hr |
| Nov 13, 5:14 AM CST | Freeze Warning | MOB | 27 hr |
| Nov 16, 3:56 PM CST | Dense Fog Advisory | MOB | 12 hr |
| Nov 26, 3:10 PM CST | Hard Freeze Watch | MOB | 12 hr |
| Nov 27, 3:35 AM CST | Hard Freeze Warning | MOB | 28 hr |
| Dec 3, 3:55 PM CST | Dense Fog Advisory | MOB | 18 hr |
| Dec 6, 4:19 PM CST | Mesoscale Discussion | SPC | 116 min |
| Dec 21, 3:53 AM CST | Wind Advisory | MOB | 20 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 | 12 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 7 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 34 |
| Flooding | |
| Areal Flood Warning | 8 |
| Flash Flood Warning | 3 |
| River Flood Warning | 8 |
| Flash Flood Watch | 6 |
| Areal Flood Advisory | 9 |
| Cold | |
| Freeze Warning | 6 |
| Hard Freeze Warning | 1 |
| Freeze Watch | 3 |
| Hard Freeze Watch | 1 |
| Frost Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 15 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20122014
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.