Alert archive / Texas / Delta County
Weather alerts in Delta County, Texas, 2012
106 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Delta County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 106
- Warnings
- 23
- Watches
- 12
- Advisories
- 19
- Busiest month
- April23 alerts
- Busiest day
- April 3, 201211 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
2 of 4 tornado warnings covering Delta County in 2012 had a tornado report inside them.
Delta County, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 2 | 50% | 0 | ||
| Severe thunderstorm warnings | 11 | 5 | 55% | 4 | 75% | 44 min |
| Flash flood warnings | 2 | 1 | 50% | 0 |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Fort Worth, TX: tornado warnings | 24 | 8 | 67% | 16 | 94% | 25 min |
| NWS Fort Worth, TX: severe thunderstorm warnings | 318 | 159 | 50% | 392 | 81% | 28 min |
| NWS Fort Worth, TX: flash flood warnings | 26 | 12 | 54% | 30 | 100% | 68 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, 2:53 PM CST | Wind Advisory | FWD | 13 hr |
| Jan 21, 3:06 PM CST | Wind Advisory | FWD | 28 hr |
| Jan 24, 9:36 PM CST | Flash Flood Watch | FWD | 14 hr |
| Jan 25, 7:02 PM CST | River Flood Warning | FWD | 9 hr |
| Feb 1, 2:24 AM CST | Dense Fog Advisory | FWD | 7 hr |
| Feb 1, 10:18 AM CST | Mesoscale Discussion | SPC | 117 min |
| Feb 3, 6:40 PM CST | Mesoscale Discussion | SPC | 95 min |
| Feb 3, 6:57 PM CST | Severe Thunderstorm Watch | SPC | 7 hr |
| Feb 3, 9:04 PM CST | Mesoscale Discussion | SPC | 86 min |
| Feb 3, 9:31 PM CST | Special Weather Statement | FWD | 29 min |
| Feb 3, 10:11 PM CST | Areal Flood Advisory | FWD | 94 min |
| Feb 13, 9:26 PM CST | Dense Fog Advisory | FWD | 14 hr |
| Feb 15, 8:42 PM CST | Dense Fog Advisory | FWD | 6 hr |
| Feb 20, 6:04 AM CST | Wind Advisory | FWD | 8 hr |
| Feb 20, 8:12 PM CST | Special Weather Statement | FWD | 63 min |
| Mar 5, 3:39 PM CST | Wind Advisory | FWD | 27 hr |
| Mar 8, 7:52 AM CST | Special Weather Statement | FWD | 53 min |
| Mar 8, 10:19 AM CST | Mesoscale Discussion | SPC | 56 min |
| Mar 18, 2:21 PM CDT | Flash Flood Watch | FWD | 48 hr |
| Mar 19, 11:12 AM CDT | Wind Advisory | FWD | 8 hr |
| Mar 19, 7:28 PM CDT | Tornado Watch | SPC | 9 hr |
| Mar 19, 8:10 PM CDT | River Flood Warning | FWD | 19 hr |
| Mar 19, 8:10 PM CDT | River Flood Warning | FWD | 37 hr |
| Mar 19, 8:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Mar 22, 4:01 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Mar 22, 4:44 PM CDT | Special Weather Statement | FWD | 31 min |
| Mar 22, 5:16 PM CDT | Special Weather Statement | FWD | 29 min |
| Mar 22, 5:56 PM CDT | Special Weather Statement | FWD | 34 min |
| Mar 31, 7:41 AM CDT | Severe Thunderstorm Warning | FWD | 47 min |
| Apr 2, 12:15 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Apr 2, 12:41 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 2, 3:00 PM CDT | Severe Thunderstorm Warning | FWD | 45 min |
| Apr 2, 3:18 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Apr 3, 9:18 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 3, 11:47 AM CDT | Mesoscale Discussion | SPC | 118 min |
| Apr 3, 12:08 PM CDT | Tornado Watch | SPC | 9 hr |
| Apr 3, 2:12 PM CDT | Severe Thunderstorm Warning | FWD | 63 min |
| Apr 3, 2:42 PM CDT | Tornado Warning | FWD | 48 min |
| Apr 3, 3:25 PM CDT | Tornado Warning | FWD | 50 min |
| Apr 3, 3:28 PM CDT | Severe Thunderstorm Warning | FWD | 62 min |
| Apr 3, 4:13 PM CDT | Tornado Warning | FWD | 33 min |
| Apr 3, 4:56 PM CDT | Tornado Warning | FWD | 20 min |
| Apr 3, 5:00 PM CDT | Severe Thunderstorm Warning | FWD | 60 min |
| Apr 3, 5:00 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Apr 8, 11:17 PM CDT | Dense Fog Advisory | FWD | 12 hr |
| Apr 10, 1:56 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Apr 10, 3:56 PM CDT | Special Weather Statement | FWD | 34 min |
| Apr 10, 4:33 PM CDT | Special Weather Statement | FWD | 27 min |
| Apr 13, 2:50 PM CDT | Wind Advisory | FWD | 33 hr |
| Apr 15, 9:25 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Apr 15, 1:01 PM CDT | Special Weather Statement | FWD | 29 min |
| Apr 20, 4:16 AM CDT | Special Weather Statement | FWD | 29 min |
| May 11, 1:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| May 11, 5:05 PM CDT | Areal Flood Advisory | FWD | 3 hr |
| May 11, 5:25 PM CDT | Special Weather Statement | FWD | 35 min |
| May 11, 5:56 PM CDT | Flash Flood Warning | FWD | 2 hr |
| May 24, 11:04 AM CDT | Wind Advisory | FWD | 4 hr |
| May 30, 12:43 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 30, 1:40 AM CDT | Special Weather Statement | FWD | 35 min |
| May 30, 2:43 AM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 6, 7:12 PM CDT | Special Weather Statement | FWD | 33 min |
| Jun 11, 11:52 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 12, 1:02 AM CDT | Severe Thunderstorm Warning | FWD | 58 min |
| Jun 13, 8:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 14, 4:08 AM CDT | Special Weather Statement | FWD | 37 min |
| Jun 14, 5:58 AM CDT | Flash Flood Warning | FWD | 2 hr |
| Jun 14, 7:47 AM CDT | Areal Flood Warning | FWD | 2 hr |
| Jul 8, 8:00 PM CDT | Special Weather Statement | FWD | 30 min |
| Jul 14, 6:00 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Jul 14, 6:46 PM CDT | Special Weather Statement | FWD | 59 min |
| Jul 20, 2:57 PM CDT | Heat Advisory | FWD | 53 hr |
| Jul 20, 3:45 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 27, 3:46 PM CDT | Heat Advisory | FWD | 10 days |
| Aug 5, 8:57 PM CDT | Special Weather Statement | FWD | 33 min |
| Aug 5, 9:36 PM CDT | Special Weather Statement | FWD | 24 min |
| Aug 6, 6:18 PM CDT | Severe Thunderstorm Warning | FWD | 42 min |
| Aug 6, 6:54 PM CDT | Severe Thunderstorm Warning | FWD | 29 min |
| Aug 7, 2:03 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Aug 8, 1:33 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Aug 8, 9:13 PM CDT | Severe Thunderstorm Warning | FWD | 33 min |
| Aug 9, 4:44 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Aug 9, 5:55 PM CDT | Special Weather Statement | FWD | 35 min |
| Aug 12, 3:29 PM CDT | Mesoscale Discussion | SPC | 31 min |
| Aug 12, 3:55 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 12, 9:12 PM CDT | Severe Thunderstorm Warning | FWD | 63 min |
| Aug 14, 6:04 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 14, 8:16 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Aug 14, 9:00 PM CDT | Special Weather Statement | FWD | 30 min |
| Aug 14, 9:45 PM CDT | Special Weather Statement | FWD | 30 min |
| Aug 14, 10:00 PM CDT | Special Weather Statement | FWD | 30 min |
| Aug 14, 10:31 PM CDT | Special Weather Statement | FWD | 29 min |
| Aug 17, 10:05 PM CDT | Special Weather Statement | FWD | 25 min |
| Aug 17, 10:28 PM CDT | Special Weather Statement | FWD | 32 min |
| Aug 17, 10:56 PM CDT | Special Weather Statement | FWD | 34 min |
| Aug 17, 11:52 PM CDT | Areal Flood Advisory | FWD | 113 min |
| Oct 13, 6:59 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 13, 9:37 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Oct 27, 2:58 PM CDT | Freeze Warning | FWD | 18 hr |
| Nov 12, 3:16 PM CST | Freeze Warning | FWD | 18 hr |
| Dec 19, 3:58 AM CST | Wind Advisory | FWD | 35 hr |
| Dec 19, 7:07 PM CST | Mesoscale Discussion | SPC | 53 min |
| Dec 19, 9:49 PM CST | Severe Thunderstorm Warning | FWD | 56 min |
| Dec 19, 9:56 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
| Dec 24, 3:55 PM CST | Winter Weather Advisory | FWD | 41 hr |
| Dec 25, 3:15 AM CST | Wind Advisory | FWD | 18 hr |
| Dec 25, 1:00 PM CST | Mesoscale Discussion | SPC | 5 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 | 11 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 26 |
| Special Weather Statement | 26 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 2 |
| River Flood Warning | 3 |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Weather Advisory | 1 |
| Heat | |
| Heat Advisory | 2 |
| Cold | |
| Freeze Warning | 2 |
| Wind and dust | |
| Wind Advisory | 9 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20112013
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.