Alert archive / Mississippi / Calhoun County
Weather alerts in Calhoun County, Mississippi, 2010
161 weather alerts in 2010, 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 2010. Tap one for its archive.
- Alerts
- 161
- Warnings
- 39
- Watches
- 45
- Advisories
- 45
- Busiest month
- May33 alerts
- Busiest day
- May 1, 201010 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Calhoun County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 15 | 7 | 53% | 2 | 100% | 35 min |
| Flash flood warnings | 16 | 6 | 63% | 3 | 100% | 75 min |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Memphis, TN: tornado warnings | 109 | 28 | 74% | 51 | 86% | 18 min |
| NWS Memphis, TN: severe thunderstorm warnings | 436 | 188 | 57% | 371 | 73% | 22 min |
| NWS Memphis, TN: flash flood warnings | 283 | 118 | 58% | 247 | 93% | 150 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 6, 4:12 AM CST | Winter Weather Advisory | MEG | 32 hr |
| Jan 7, 12:44 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 7, 7:33 AM CST | Wind Chill Advisory | MEG | 44 hr |
| Jan 17, 10:37 PM CST | Dense Fog Advisory | MEG | 11 hr |
| Jan 20, 4:15 AM CST | Flash Flood Watch | MEG | 24 hr |
| Jan 21, 3:39 AM CST | Flash Flood Warning | MEG | 92 min |
| Jan 22, 3:38 PM CST | Wind Advisory | MEG | 35 hr |
| Jan 25, 3:58 AM CST | Wind Advisory | MEG | 12 hr |
| Jan 28, 3:41 AM CST | Winter Storm Warning | MEG | 50 hr |
| Jan 29, 3:58 PM CST | Winter Weather Advisory | MEG | 14 hr |
| Feb 11, 4:02 AM CST | Winter Weather Advisory | MEG | 24 hr |
| Feb 13, 3:30 PM CST | Winter Storm Watch | MEG | 6 hr |
| Feb 13, 9:46 PM CST | Winter Weather Advisory | MEG | 28 hr |
| Feb 15, 9:13 AM CST | Winter Weather Advisory | MEG | 9 hr |
| Mar 10, 5:15 PM CST | Mesoscale Discussion | SPC | 60 min |
| Mar 11, 1:21 AM CST | Mesoscale Discussion | SPC | 54 min |
| Mar 11, 1:32 AM CST | Flash Flood Warning | MEG | 4 hr |
| Mar 11, 1:42 AM CST | Tornado Watch | SPC | 4 hr |
| Mar 11, 11:45 PM CST | Severe Thunderstorm Watch | SPC | 4 hr |
| Mar 22, 11:20 PM CDT | Dense Fog Advisory | MEG | 11 hr |
| Mar 25, 1:14 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Mar 25, 1:49 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 25, 4:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Apr 3, 1:18 AM CDT | Mesoscale Discussion | SPC | 57 min |
| Apr 3, 2:59 AM CDT | Mesoscale Discussion | SPC | 91 min |
| Apr 3, 3:17 AM CDT | Severe Thunderstorm Warning | MEG | 73 min |
| Apr 3, 4:13 AM CDT | Severe Thunderstorm Warning | MEG | 62 min |
| Apr 7, 7:31 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 22, 3:31 PM CDT | Flash Flood Watch | MEG | 48 hr |
| Apr 23, 4:13 AM CDT | Wind Advisory | MEG | 41 hr |
| Apr 23, 12:51 PM CDT | Tornado Watch | SPC | 9 hr |
| Apr 23, 6:31 PM CDT | Mesoscale Discussion | SPC | 29 min |
| Apr 23, 6:51 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 23, 11:40 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Apr 24, 6:00 AM CDT | Tornado Watch | SPC | 6 hr |
| Apr 24, 6:24 AM CDT | Severe Thunderstorm Warning | MEG | 51 min |
| Apr 24, 9:31 AM CDT | Mesoscale Discussion | SPC | 59 min |
| Apr 24, 11:31 AM CDT | Tornado Watch | SPC | 8 hr |
| Apr 24, 2:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Apr 29, 4:15 AM CDT | Flash Flood Watch | MEG | 4 days |
| Apr 30, 9:05 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Apr 30, 9:51 PM CDT | Severe Thunderstorm Warning | MEG | 39 min |
| May 1, 12:01 AM CDT | Tornado Watch | SPC | 3 hr |
| May 1, 2:25 AM CDT | Mesoscale Discussion | SPC | 95 min |
| May 1, 3:11 AM CDT | Tornado Watch | SPC | 8 hr |
| May 1, 6:17 AM CDT | Mesoscale Discussion | SPC | 88 min |
| May 1, 7:48 AM CDT | Mesoscale Discussion | SPC | 57 min |
| May 1, 9:52 AM CDT | Tornado Watch | SPC | 8 hr |
| May 1, 12:50 PM CDT | Flash Flood Warning | MEG | 5 hr |
| May 1, 5:04 PM CDT | Mesoscale Discussion | SPC | 56 min |
| May 1, 8:06 PM CDT | Tornado Watch | SPC | 8 hr |
| May 1, 8:51 PM CDT | Severe Thunderstorm Warning | MEG | 39 min |
| May 2, 2:33 AM CDT | Mesoscale Discussion | SPC | 87 min |
| May 2, 3:36 AM CDT | Tornado Watch | SPC | 8 hr |
| May 2, 6:37 AM CDT | Mesoscale Discussion | SPC | 113 min |
| May 2, 7:16 AM CDT | Flash Flood Warning | MEG | 6 hr |
| May 2, 11:41 AM CDT | Flash Flood Warning | MEG | 6 hr |
| May 3, 1:32 AM CDT | Dense Fog Advisory | MEG | 6 hr |
| May 15, 6:15 PM CDT | Flash Flood Watch | MEG | 29 hr |
| May 16, 5:05 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 16, 7:55 PM CDT | Severe Thunderstorm Warning | MEG | 50 min |
| May 17, 2:48 AM CDT | Dense Fog Advisory | MEG | 6 hr |
| May 18, 3:52 PM CDT | Flash Flood Watch | MEG | 51 hr |
| May 20, 8:57 AM CDT | Mesoscale Discussion | SPC | 63 min |
| May 20, 12:16 PM CDT | Mesoscale Discussion | SPC | 59 min |
| May 20, 12:44 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| May 20, 1:34 PM CDT | Flash Flood Warning | MEG | 116 min |
| May 21, 4:40 AM CDT | Severe Thunderstorm Warning | MEG | 36 min |
| May 21, 5:36 AM CDT | Flash Flood Warning | MEG | 6 hr |
| May 21, 7:08 AM CDT | Flash Flood Warning | MEG | 3 hr |
| May 22, 5:22 AM CDT | Dense Fog Advisory | MEG | 4 hr |
| May 24, 3:52 PM CDT | Flash Flood Warning | MEG | 3 hr |
| May 25, 7:44 AM CDT | Flash Flood Watch | MEG | 7 hr |
| Jun 1, 1:46 PM CDT | Flash Flood Warning | MEG | 100 min |
| Jun 2, 5:21 PM CDT | Severe Thunderstorm Warning | MEG | 39 min |
| Jun 2, 5:30 PM CDT | Flash Flood Warning | MEG | 2 hr |
| Jun 2, 5:56 PM CDT | Severe Thunderstorm Warning | MEG | 49 min |
| Jun 9, 6:46 AM CDT | Flash Flood Warning | MEG | 3 hr |
| Jun 11, 2:56 PM CDT | Heat Advisory | MEG | 3 days |
| Jun 17, 5:08 PM CDT | Flash Flood Warning | MEG | 65 min |
| Jun 18, 3:30 AM CDT | Heat Advisory | MEG | 7 days |
| Jun 18, 1:06 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jun 26, 3:23 PM CDT | Flash Flood Warning | MEG | 2 hr |
| Jun 28, 2:48 AM CDT | Heat Advisory | MEG | 16 hr |
| Jul 8, 8:26 AM CDT | Heat Advisory | MEG | 9 hr |
| Jul 13, 3:50 AM CDT | Heat Advisory | MEG | 65 hr |
| Jul 16, 4:09 AM CDT | Heat Advisory | MEG | 11 hr |
| Jul 19, 4:00 AM CDT | Heat Advisory | MEG | 11 hr |
| Jul 20, 3:03 PM CDT | Heat Advisory | MEG | 29 hr |
| Jul 21, 3:38 PM CDT | Heat Advisory | MEG | 3 days |
| Jul 25, 11:48 AM CDT | Heat Advisory | MEG | 8 hr |
| Jul 25, 5:05 PM CDT | Severe Thunderstorm Warning | MEG | 55 min |
| Jul 25, 5:30 PM CDT | Flash Flood Warning | MEG | 3 hr |
| Jul 25, 5:46 PM CDT | Severe Thunderstorm Warning | MEG | 59 min |
| Jul 26, 12:12 PM CDT | Heat Advisory | MEG | 8 hr |
| Jul 30, 3:51 AM CDT | Heat Advisory | MEG | 16 hr |
| Jul 31, 3:36 AM CDT | Heat Advisory | MEG | 72 hr |
| Aug 1, 4:39 AM CDT | Excessive Heat Warning | MEG | 5 days |
| Aug 1, 3:46 PM CDT | Excessive Heat Watch | MEG | 24 hr |
| Aug 3, 3:24 AM CDT | Excessive Heat Watch | MEG | 12 hr |
| Aug 5, 3:29 PM CDT | Severe Thunderstorm Warning | MEG | 46 min |
| Aug 5, 9:10 PM CDT | Heat Advisory | MEG | 18 hr |
| Aug 6, 3:02 PM CDT | Heat Advisory | MEG | 4 days |
| Aug 7, 3:30 PM CDT | Excessive Heat Watch | MEG | 36 hr |
| Aug 8, 3:30 PM CDT | Excessive Heat Warning | MEG | 7 days |
| Aug 9, 2:07 PM CDT | Excessive Heat Watch | MEG | 14 hr |
| Aug 10, 2:26 PM CDT | Excessive Heat Watch | MEG | 13 hr |
| Aug 11, 3:57 PM CDT | Excessive Heat Watch | MEG | 12 hr |
| Aug 15, 4:14 AM CDT | Heat Advisory | MEG | 39 hr |
| Aug 15, 1:14 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 15, 6:03 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Aug 18, 3:54 AM CDT | Flash Flood Watch | MEG | 15 hr |
| Aug 19, 4:07 PM CDT | Excessive Heat Watch | MEG | 24 hr |
| Aug 19, 4:07 PM CDT | Heat Advisory | MEG | 42 hr |
| Aug 20, 4:04 AM CDT | Excessive Heat Warning | MEG | 40 hr |
| Aug 20, 3:59 PM CDT | Excessive Heat Watch | MEG | 24 hr |
| Aug 21, 3:47 PM CDT | Heat Advisory | MEG | 29 hr |
| Aug 22, 2:41 AM CDT | Severe Thunderstorm Warning | MEG | 41 min |
| Sep 29, 9:45 PM CDT | Fire Weather Watch | MEG | 6 hr |
| Sep 29, 9:45 PM CDT | Fire Weather Watch | MEG | 30 hr |
| Oct 1, 3:45 AM CDT | Red Flag Warning | MEG | 15 hr |
| Oct 12, 12:48 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Oct 12, 3:27 PM CDT | Severe Thunderstorm Warning | MEG | 48 min |
| Oct 12, 3:28 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Oct 12, 5:24 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Oct 13, 3:00 AM CDT | Dense Fog Advisory | MEG | 6 hr |
| Oct 14, 4:33 AM CDT | Red Flag Warning | MEG | 10 hr |
| Oct 22, 3:33 AM CDT | Fire Weather Watch | MEG | 25 hr |
| Oct 24, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Oct 24, 7:01 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Oct 24, 8:17 PM CDT | Severe Thunderstorm Warning | MEG | 43 min |
| Oct 24, 8:23 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Oct 24, 8:46 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Oct 24, 9:31 PM CDT | Areal Flood Advisory | MEG | 59 min |
| Oct 24, 10:31 PM CDT | Areal Flood Advisory | MEG | 89 min |
| Oct 24, 11:24 PM CDT | Flash Flood Warning | MEG | 3 hr |
| Oct 24, 11:35 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Oct 25, 4:16 PM CDT | Wind Advisory | MEG | 22 hr |
| Oct 26, 4:05 AM CDT | Tornado Watch | SPC | 8 hr |
| Oct 26, 11:26 AM CDT | Mesoscale Discussion | SPC | 64 min |
| Oct 26, 11:42 AM CDT | Tornado Watch | SPC | 7 hr |
| Oct 29, 4:42 AM CDT | Frost Advisory | MEG | 28 hr |
| Nov 4, 3:33 AM CDT | Freeze Watch | MEG | 24 hr |
| Nov 5, 3:14 AM CDT | Freeze Warning | MEG | 30 hr |
| Nov 5, 3:14 PM CDT | Freeze Watch | MEG | 13 hr |
| Nov 6, 3:50 AM CDT | Freeze Warning | MEG | 29 hr |
| Nov 18, 3:30 PM CST | Dense Fog Advisory | MEG | 12 hr |
| Nov 20, 9:32 PM CST | Dense Fog Advisory | MEG | 11 hr |
| Nov 24, 2:08 PM CST | Wind Advisory | MEG | 32 hr |
| Nov 25, 1:40 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
| Nov 28, 2:56 PM CST | Wind Advisory | MEG | 13 hr |
| Nov 28, 3:05 PM CST | Flash Flood Watch | MEG | 37 hr |
| Nov 29, 8:49 PM CST | Tornado Watch | SPC | 7 hr |
| Dec 11, 3:14 PM CST | Wind Advisory | MEG | 33 hr |
| Dec 11, 4:19 PM CST | Special Weather Statement | MEG | 26 min |
| Dec 11, 4:45 PM CST | Special Weather Statement | MEG | 45 min |
| Dec 14, 2:44 AM CST | Winter Weather Advisory | MEG | 45 hr |
| Dec 25, 4:25 AM CST | Winter Weather Advisory | MEG | 6 hr |
| Dec 30, 1:10 PM CST | Wind Advisory | MEG | 14 hr |
| Dec 31, 3:58 PM CST | Tornado Watch | SPC | 7 hr |
| Dec 31, 5:35 PM CST | Mesoscale Discussion | SPC | 115 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 | 15 |
| Severe Thunderstorm Watch | 9 |
| Tornado Watch | 14 |
| Mesoscale Discussion | 30 |
| Special Weather Statement | 2 |
| Flooding | |
| Flash Flood Warning | 16 |
| Flash Flood Watch | 8 |
| Areal Flood Advisory | 2 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 7 |
| Heat | |
| Excessive Heat Warning | 3 |
| Excessive Heat Watch | 8 |
| Heat Advisory | 18 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 2 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 8 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 3 |
| 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.