Alert archive / Texas / Grayson County
Weather alerts in Grayson County, Texas, 2013
114 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Grayson County and its neighbors
Each county as a circle sized by its count in 2013. Tap one for its archive.
- Alerts
- 114
- Warnings
- 16
- Watches
- 17
- Advisories
- 25
- Busiest month
- May27 alerts
- Busiest day
- May 21, 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.
Grayson County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 10 | 4 | 60% | 6 | 100% | 24 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Fort Worth, TX: tornado warnings | 35 | 8 | 77% | 12 | 92% | 29 min |
| NWS Fort Worth, TX: severe thunderstorm warnings | 272 | 103 | 62% | 273 | 79% | 27 min |
| NWS Fort Worth, TX: flash flood warnings | 27 | 10 | 63% | 16 | 88% | 160 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 12, 10:26 PM CST | Special Weather Statement | FWD | 64 min |
| Jan 15, 4:08 AM CST | Winter Weather Advisory | FWD | 10 hr |
| Jan 24, 6:12 AM CST | Dense Fog Advisory | FWD | 4 hr |
| Jan 25, 3:42 AM CST | Dense Fog Advisory | FWD | 4 hr |
| Jan 26, 9:27 PM CST | Dense Fog Advisory | FWD | 12 hr |
| Jan 29, 9:46 AM CST | Mesoscale Discussion | SPC | 119 min |
| Jan 29, 10:37 AM CST | Mesoscale Discussion | SPC | 53 min |
| Jan 29, 10:59 AM CST | Tornado Watch | SPC | 8 hr |
| Jan 29, 2:15 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 5, 2:43 AM CST | Dense Fog Advisory | FWD | 8 hr |
| Feb 6, 1:07 AM CST | Dense Fog Advisory | FWD | 9 hr |
| Feb 9, 11:37 PM CST | Severe Thunderstorm Watch | SPC | 6 hr |
| Feb 10, 2:42 AM CST | Severe Thunderstorm Warning | FWD | 63 min |
| Feb 24, 3:34 AM CST | Wind Advisory | FWD | 48 hr |
| Mar 4, 9:18 PM CST | Wind Advisory | FWD | 15 hr |
| Mar 9, 1:46 PM CST | Severe Thunderstorm Watch | SPC | 9 hr |
| Mar 9, 3:34 PM CST | Mesoscale Discussion | SPC | 86 min |
| Mar 9, 5:41 PM CST | Mesoscale Discussion | SPC | 94 min |
| Mar 9, 5:58 PM CST | Special Weather Statement | FWD | 32 min |
| Mar 9, 6:23 PM CST | Severe Thunderstorm Warning | FWD | 67 min |
| Mar 9, 11:27 PM CST | Areal Flood Advisory | FWD | 3 hr |
| Mar 23, 3:39 PM CDT | Wind Advisory | FWD | 24 hr |
| Mar 24, 11:20 AM CDT | Freeze Warning | FWD | 22 hr |
| Mar 25, 4:14 AM CDT | Freeze Warning | FWD | 29 hr |
| Mar 29, 9:24 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Mar 29, 10:30 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 30, 1:21 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Mar 30, 6:06 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 31, 4:54 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Mar 31, 5:10 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 31, 6:43 AM CDT | Special Weather Statement | FWD | 32 min |
| Mar 31, 6:48 AM CDT | Severe Thunderstorm Warning | FWD | 42 min |
| Mar 31, 7:29 AM CDT | Severe Thunderstorm Warning | FWD | 31 min |
| Apr 9, 9:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Apr 15, 2:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Apr 15, 3:41 PM CDT | Tornado Watch | SPC | 6 hr |
| Apr 15, 7:04 PM CDT | Mesoscale Discussion | SPC | 41 min |
| Apr 17, 10:47 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 18, 3:36 AM CDT | Special Weather Statement | FWD | 54 min |
| Apr 18, 4:29 AM CDT | Mesoscale Discussion | SPC | 91 min |
| May 1, 2:44 PM CDT | Wind Advisory | FWD | 30 hr |
| May 3, 3:50 AM CDT | Wind Advisory | FWD | 12 hr |
| May 15, 2:59 PM CDT | Mesoscale Discussion | SPC | 91 min |
| May 15, 3:04 PM CDT | Mesoscale Discussion | SPC | 86 min |
| May 15, 3:28 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| May 15, 6:01 PM CDT | Tornado Watch | SPC | 8 hr |
| May 15, 7:40 PM CDT | Mesoscale Discussion | SPC | 65 min |
| May 15, 9:02 PM CDT | Mesoscale Discussion | SPC | 88 min |
| May 16, 8:04 AM CDT | Severe Thunderstorm Warning | FWD | 56 min |
| May 16, 8:22 AM CDT | Special Weather Statement | FWD | 23 min |
| May 20, 12:26 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 20, 1:19 PM CDT | Mesoscale Discussion | SPC | 116 min |
| May 20, 2:21 PM CDT | Tornado Watch | SPC | 8 hr |
| May 20, 6:33 PM CDT | Mesoscale Discussion | SPC | 57 min |
| May 20, 8:45 PM CDT | Mesoscale Discussion | SPC | 60 min |
| May 21, 8:12 AM CDT | Mesoscale Discussion | SPC | 93 min |
| May 21, 10:09 AM CDT | Mesoscale Discussion | SPC | 96 min |
| May 21, 10:26 AM CDT | Tornado Watch | SPC | 10 hr |
| May 21, 1:19 PM CDT | Mesoscale Discussion | SPC | 116 min |
| May 21, 1:44 PM CDT | Severe Thunderstorm Warning | FWD | 61 min |
| May 21, 2:44 PM CDT | Severe Thunderstorm Warning | FWD | 61 min |
| May 21, 3:18 PM CDT | Areal Flood Advisory | FWD | 3 hr |
| May 23, 8:52 AM CDT | Mesoscale Discussion | SPC | 53 min |
| May 25, 5:32 PM CDT | Special Weather Statement | FWD | 28 min |
| May 29, 6:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| May 29, 6:51 PM CDT | Severe Thunderstorm Warning | FWD | 54 min |
| May 30, 2:51 PM CDT | Tornado Watch | SPC | 6 hr |
| Jun 4, 7:55 AM CDT | Special Weather Statement | FWD | 65 min |
| Jun 5, 3:55 AM CDT | Special Weather Statement | FWD | 35 min |
| Jun 5, 7:56 AM CDT | Special Weather Statement | FWD | 34 min |
| Jun 6, 4:44 AM CDT | Special Weather Statement | FWD | 31 min |
| Jun 6, 4:55 AM CDT | Areal Flood Advisory | FWD | 2 hr |
| Jun 17, 4:17 AM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 17, 6:54 AM CDT | Special Weather Statement | FWD | 66 min |
| Jul 23, 4:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 24, 2:32 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 24, 4:47 AM CDT | Mesoscale Discussion | SPC | 58 min |
| Jul 26, 2:07 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jul 26, 3:37 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 5, 12:48 PM CDT | Heat Advisory | FWD | 3 days |
| Aug 8, 6:23 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 8, 8:27 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 9, 5:02 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Aug 13, 1:04 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 16, 2:35 AM CDT | Special Weather Statement | FWD | 55 min |
| Sep 28, 1:03 PM CDT | Special Weather Statement | FWD | 27 min |
| Sep 28, 1:50 PM CDT | Special Weather Statement | FWD | 25 min |
| Oct 5, 12:45 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 5, 4:24 PM CDT | Special Weather Statement | FWD | 36 min |
| Oct 12, 3:14 PM CDT | Special Weather Statement | FWD | 31 min |
| Oct 26, 3:06 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Oct 26, 5:29 PM CDT | Severe Thunderstorm Warning | FWD | 61 min |
| Oct 26, 6:26 PM CDT | Severe Thunderstorm Warning | FWD | 64 min |
| Oct 27, 9:57 PM CDT | Dense Fog Advisory | FWD | 12 hr |
| Nov 6, 2:08 PM CST | Frost Advisory | FWD | 19 hr |
| Nov 11, 2:08 PM CST | Freeze Warning | FWD | 44 hr |
| Nov 21, 4:59 PM CST | Mesoscale Discussion | SPC | 91 min |
| Nov 21, 8:11 PM CST | Areal Flood Advisory | FWD | 3 hr |
| Nov 22, 3:52 AM CST | Winter Storm Watch | FWD | 35 hr |
| Nov 23, 4:18 AM CST | Winter Storm Warning | FWD | 40 hr |
| Nov 24, 7:57 PM CST | Winter Weather Advisory | FWD | 16 hr |
| Dec 1, 11:20 PM CST | Dense Fog Advisory | FWD | 11 hr |
| Dec 2, 10:11 PM CST | Dense Fog Advisory | FWD | 14 hr |
| Dec 3, 3:55 PM CST | Winter Storm Watch | FWD | 23 hr |
| Dec 4, 3:12 PM CST | Winter Storm Warning | FWD | 48 hr |
| Dec 5, 12:00 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Dec 5, 6:28 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Dec 6, 2:06 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 6, 6:46 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Dec 6, 3:20 PM CST | Wind Chill Advisory | FWD | 13 hr |
| Dec 6, 3:28 PM CST | Hard Freeze Warning | FWD | 13 hr |
| Dec 7, 6:50 PM CST | Freezing Fog Advisory | FWD | 17 hr |
| Dec 8, 6:00 PM CST | Freezing Fog Advisory | FWD | 18 hr |
| Dec 13, 8:43 PM CST | Dense Fog Advisory | FWD | 10 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 | 10 |
| Severe Thunderstorm Watch | 9 |
| Tornado Watch | 6 |
| Mesoscale Discussion | 40 |
| Special Weather Statement | 16 |
| Flooding | |
| Areal Flood Advisory | 4 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 2 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 3 |
| Hard Freeze Warning | 1 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
| Freezing Fog Advisory | 2 |
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.