Alert archive / Mississippi / Lamar County
Weather alerts in Lamar County, Mississippi, 2010
123 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Lamar County and its neighbors
Each county as a circle sized by its count in 2010. Tap one for its archive.
- Alerts
- 123
- Warnings
- 42
- Watches
- 28
- Advisories
- 24
- Busiest month
- January16 alerts
- Busiest day
- April 24, 20107 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Lamar County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 25 | 16 | 36% | 13 | 62% | 25 min |
| Flash flood warnings | 6 | 3 | 50% | 1 | 100% | 98 min |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Jackson, MS: tornado warnings | 111 | 29 | 74% | 97 | 89% | 32 min |
| NWS Jackson, MS: severe thunderstorm warnings | 620 | 337 | 46% | 707 | 75% | 20 min |
| NWS Jackson, MS: flash flood warnings | 111 | 54 | 51% | 102 | 91% | 60 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 5, 2:49 PM CST | Hard Freeze Watch | JAN | 38 hr |
| Jan 7, 4:24 AM CST | Hard Freeze Warning | JAN | 4 days |
| Jan 7, 4:52 AM CST | Wind Chill Advisory | JAN | 35 hr |
| Jan 17, 9:36 PM CST | Dense Fog Advisory | JAN | 11 hr |
| Jan 20, 3:13 PM CST | Tornado Watch | SPC | 7 hr |
| Jan 20, 8:22 PM CST | Flash Flood Warning | JAN | 3 hr |
| Jan 20, 8:59 PM CST | Mesoscale Discussion | SPC | 91 min |
| Jan 20, 9:36 PM CST | Tornado Watch | SPC | 7 hr |
| Jan 20, 11:39 PM CST | Mesoscale Discussion | SPC | 66 min |
| Jan 21, 1:13 AM CST | Mesoscale Discussion | SPC | 62 min |
| Jan 21, 3:34 AM CST | Mesoscale Discussion | SPC | 56 min |
| Jan 22, 3:22 PM CST | Lake Wind Advisory | JAN | 35 hr |
| Jan 23, 11:54 PM CST | Mesoscale Discussion | SPC | 96 min |
| Jan 24, 6:15 AM CST | Flash Flood Warning | JAN | 90 min |
| Jan 24, 2:50 PM CST | Lake Wind Advisory | JAN | 26 hr |
| Jan 29, 10:03 AM CST | Mesoscale Discussion | SPC | 87 min |
| Feb 3, 2:14 PM CST | Flash Flood Watch | JAN | 34 hr |
| Feb 4, 1:52 PM CST | Areal Flood Warning | JAN | 10 hr |
| Feb 4, 5:00 PM CST | Flash Flood Warning | JAN | 4 hr |
| Feb 8, 3:46 PM CST | Lake Wind Advisory | JAN | 26 hr |
| Feb 10, 3:33 AM CST | Winter Storm Watch | JAN | 25 hr |
| Feb 11, 4:41 AM CST | Winter Storm Warning | JAN | 33 hr |
| Feb 11, 11:30 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 12, 5:33 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Feb 12, 1:36 PM CST | Winter Weather Advisory | JAN | 77 min |
| Feb 14, 3:04 PM CST | Lake Wind Advisory | JAN | 24 hr |
| Feb 21, 6:50 PM CST | Mesoscale Discussion | SPC | 55 min |
| Feb 21, 11:32 PM CST | Severe Thunderstorm Warning | JAN | 58 min |
| Feb 21, 11:37 PM CST | Severe Thunderstorm Warning | JAN | 53 min |
| Mar 24, 5:10 AM CDT | Dense Fog Advisory | JAN | 4 hr |
| Apr 3, 3:13 PM CDT | Dense Fog Advisory | JAN | 18 hr |
| Apr 8, 2:31 AM CDT | Severe Thunderstorm Warning | JAN | 59 min |
| Apr 23, 12:51 PM CDT | Tornado Watch | SPC | 9 hr |
| Apr 23, 3:47 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Apr 23, 7:39 PM CDT | Mesoscale Discussion | SPC | 36 min |
| Apr 24, 6:00 AM CDT | Tornado Watch | SPC | 6 hr |
| Apr 24, 6:16 AM CDT | Severe Thunderstorm Warning | JAN | 44 min |
| Apr 24, 9:38 AM CDT | Severe Thunderstorm Warning | JAN | 52 min |
| Apr 24, 9:47 AM CDT | Severe Thunderstorm Warning | JAN | 58 min |
| Apr 24, 10:28 AM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 24, 11:31 AM CDT | Tornado Watch | SPC | 8 hr |
| May 2, 6:55 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 2, 8:01 AM CDT | Tornado Watch | SPC | 7 hr |
| May 3, 12:08 AM CDT | Dense Fog Advisory | JAN | 9 hr |
| May 20, 10:28 AM CDT | Severe Thunderstorm Watch | SPC | 12 hr |
| May 25, 4:04 PM CDT | Severe Thunderstorm Warning | JAN | 22 min |
| May 29, 10:25 AM CDT | Mesoscale Discussion | SPC | 65 min |
| May 29, 12:11 PM CDT | Mesoscale Discussion | SPC | 34 min |
| May 29, 12:34 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 29, 4:36 PM CDT | Mesoscale Discussion | SPC | 54 min |
| May 30, 4:39 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 1, 4:05 PM CDT | Severe Thunderstorm Warning | JAN | 40 min |
| Jun 4, 3:26 PM CDT | Severe Thunderstorm Warning | JAN | 64 min |
| Jun 11, 2:20 PM CDT | Heat Advisory | JAN | 3 days |
| Jun 15, 2:33 PM CDT | Severe Thunderstorm Warning | JAN | 57 min |
| Jun 15, 2:56 PM CDT | Flash Flood Warning | JAN | 2 hr |
| Jun 19, 2:16 PM CDT | Heat Advisory | JAN | 29 hr |
| Jul 9, 4:43 PM CDT | Severe Thunderstorm Warning | JAN | 47 min |
| Jul 9, 6:39 PM CDT | Severe Thunderstorm Warning | JAN | 35 min |
| Jul 16, 1:42 PM CDT | Severe Thunderstorm Warning | JAN | 48 min |
| Jul 16, 2:14 PM CDT | Severe Thunderstorm Warning | JAN | 35 min |
| Jul 16, 6:57 PM CDT | Flash Flood Warning | JAN | 65 min |
| Jul 25, 5:57 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 25, 9:21 AM CDT | Flash Flood Warning | JAN | 2 hr |
| Jul 25, 10:30 AM CDT | Flash Flood Watch | JAN | 4 hr |
| Jul 25, 10:50 AM CDT | Mesoscale Discussion | SPC | 55 min |
| Jul 30, 4:45 AM CDT | Heat Advisory | JAN | 3 days |
| Aug 1, 1:39 PM CDT | Excessive Heat Warning | JAN | 4 days |
| Aug 3, 4:19 AM CDT | Heat Advisory | JAN | 34 hr |
| Aug 4, 2:41 PM CDT | Severe Thunderstorm Warning | JAN | 34 min |
| Aug 4, 3:30 PM CDT | Severe Thunderstorm Warning | JAN | 30 min |
| Aug 5, 4:56 AM CDT | Heat Advisory | JAN | 38 hr |
| Aug 7, 2:51 PM CDT | Heat Advisory | JAN | 9 days |
| Aug 15, 4:49 PM CDT | Severe Thunderstorm Warning | JAN | 41 min |
| Aug 15, 5:25 PM CDT | Severe Thunderstorm Warning | JAN | 50 min |
| Aug 15, 6:03 PM CDT | Severe Thunderstorm Warning | JAN | 57 min |
| Aug 15, 6:57 PM CDT | Severe Thunderstorm Warning | JAN | 48 min |
| Aug 21, 3:54 AM CDT | Heat Advisory | JAN | 39 hr |
| Aug 22, 1:53 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 22, 6:13 PM CDT | Severe Thunderstorm Warning | JAN | 47 min |
| Sep 10, 7:02 AM CDT | Dense Fog Advisory | JAN | 118 min |
| Sep 20, 6:28 PM CDT | Severe Thunderstorm Warning | JAN | 32 min |
| Sep 22, 3:23 PM CDT | Severe Thunderstorm Warning | JAN | 52 min |
| Sep 23, 11:19 AM CDT | Fire Weather Watch | JAN | 32 hr |
| Sep 29, 2:58 PM CDT | Fire Weather Watch | JAN | 21 hr |
| Sep 30, 12:20 PM CDT | Fire Weather Watch | JAN | 15 hr |
| Sep 30, 12:20 PM CDT | Red Flag Warning | JAN | 7 hr |
| Oct 1, 3:21 AM CDT | Fire Weather Watch | JAN | 48 hr |
| Oct 1, 3:21 AM CDT | Red Flag Warning | JAN | 16 hr |
| Oct 3, 3:45 AM CDT | Fire Weather Watch | JAN | 31 hr |
| Oct 3, 3:45 AM CDT | Red Flag Warning | JAN | 15 hr |
| Oct 4, 10:37 AM CDT | Fire Weather Watch | JAN | 41 hr |
| Oct 4, 10:37 AM CDT | Red Flag Warning | JAN | 8 hr |
| Oct 12, 12:48 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Oct 12, 5:24 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Oct 24, 5:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Oct 25, 3:54 PM CDT | Wind Advisory | JAN | 24 hr |
| Oct 27, 6:40 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Nov 4, 3:10 PM CDT | Freeze Watch | JAN | 13 hr |
| Nov 5, 4:10 AM CDT | Freeze Watch | JAN | 23 hr |
| Nov 5, 4:10 AM CDT | Freeze Warning | JAN | 30 hr |
| Nov 6, 3:22 AM CDT | Freeze Watch | JAN | 33 hr |
| Nov 6, 3:22 AM CDT | Freeze Warning | JAN | 30 hr |
| Nov 7, 10:58 AM CST | Freeze Warning | JAN | 21 hr |
| Nov 20, 7:56 PM CST | Dense Fog Advisory | JAN | 13 hr |
| Nov 21, 1:55 PM CST | Dense Fog Advisory | JAN | 19 hr |
| Nov 23, 4:29 PM CST | Dense Fog Advisory | JAN | 16 hr |
| Nov 29, 3:29 PM CST | Mesoscale Discussion | SPC | 91 min |
| Nov 29, 4:41 PM CST | Tornado Watch | SPC | 4 hr |
| Nov 29, 8:49 PM CST | Tornado Watch | SPC | 7 hr |
| Nov 30, 3:17 AM CST | Mesoscale Discussion | SPC | 58 min |
| Nov 30, 3:49 AM CST | Tornado Watch | SPC | 8 hr |
| Nov 30, 5:34 AM CST | Severe Thunderstorm Warning | JAN | 71 min |
| Nov 30, 6:10 AM CST | Severe Thunderstorm Warning | JAN | 50 min |
| Dec 11, 3:11 PM CST | Wind Advisory | JAN | 27 hr |
| Dec 11, 6:13 PM CST | Mesoscale Discussion | SPC | 92 min |
| Dec 11, 8:22 PM CST | Mesoscale Discussion | SPC | 83 min |
| Dec 12, 5:33 AM CST | Wind Chill Advisory | JAN | 27 hr |
| Dec 31, 9:42 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 31, 11:39 AM CST | Tornado Watch | SPC | 7 hr |
| Dec 31, 1:34 PM CST | Tornado Watch | SPC | 6 hr |
| Dec 31, 2:58 PM CST | Mesoscale Discussion | SPC | 92 min |
| Dec 31, 3:58 PM CST | Tornado Watch | SPC | 7 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 | 25 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 12 |
| Mesoscale Discussion | 29 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 6 |
| Flash Flood Watch | 2 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 1 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 7 |
| Cold | |
| Freeze Warning | 3 |
| Hard Freeze Warning | 1 |
| Freeze Watch | 3 |
| Hard Freeze Watch | 1 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| Lake Wind Advisory | 4 |
| Wind Advisory | 2 |
| Fire | |
| Red Flag Warning | 4 |
| Fire Weather Watch | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 8 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20092011
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.