Alert archive / Texas / Nacogdoches County
Weather alerts in Nacogdoches County, Texas, 2010
92 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Nacogdoches County and its neighbors
Each county as a circle sized by its count in 2010. Tap one for its archive.
- Alerts
- 92
- Warnings
- 22
- Watches
- 17
- Advisories
- 35
- Busiest month
- March14 alerts
- Busiest day
- March 10, 20104 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Nacogdoches County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 11 | 4 | 64% | 1 | 100% | 4 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Shreveport, LA: tornado warnings | 77 | 20 | 74% | 46 | 85% | 19 min |
| NWS Shreveport, LA: severe thunderstorm warnings | 288 | 152 | 47% | 358 | 77% | 21 min |
| NWS Shreveport, LA: flash flood warnings | 14 | 11 | 21% | 39 | 79% | 166 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, 3:57 AM CST | Winter Weather Advisory | SHV | 29 hr |
| Jan 6, 6:54 AM CST | Lake Wind Advisory | SHV | 33 hr |
| Jan 7, 5:59 AM CST | Hard Freeze Warning | SHV | 29 hr |
| Jan 7, 4:19 PM CST | Wind Chill Advisory | SHV | 19 hr |
| Jan 8, 5:01 AM CST | Hard Freeze Warning | SHV | 30 hr |
| Jan 9, 4:24 AM CST | Hard Freeze Warning | SHV | 31 hr |
| Jan 20, 3:13 PM CST | Tornado Watch | SPC | 7 hr |
| Jan 23, 4:03 PM CST | Mesoscale Discussion | SPC | 57 min |
| Feb 10, 3:38 PM CST | Winter Storm Watch | SHV | 14 hr |
| Feb 11, 5:32 AM CST | Winter Weather Advisory | SHV | 3 hr |
| Feb 11, 8:46 AM CST | Winter Weather Advisory | SHV | 26 hr |
| Feb 12, 10:37 AM CST | River Flood Warning | SHV | 7 days |
| Feb 15, 3:29 AM CST | Lake Wind Advisory | SHV | 14 hr |
| Feb 22, 3:57 PM CST | Winter Storm Warning | SHV | 28 hr |
| Feb 22, 3:57 PM CST | Winter Weather Advisory | SHV | 32 hr |
| Feb 23, 12:01 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Mar 9, 9:36 AM CST | River Flood Warning | SHV | 3 days |
| Mar 10, 9:50 AM CST | River Flood Warning | SHV | 14 days |
| Mar 10, 11:39 AM CST | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 10, 3:26 PM CST | Tornado Watch | SPC | 7 hr |
| Mar 10, 4:00 PM CST | Severe Thunderstorm Watch | SPC | 4 hr |
| Mar 10, 6:10 PM CST | Severe Thunderstorm Warning | SHV | 50 min |
| Mar 10, 6:30 PM CST | Severe Thunderstorm Warning | SHV | 60 min |
| Mar 10, 7:37 PM CST | Severe Thunderstorm Warning | SHV | 53 min |
| Mar 13, 9:17 AM CST | River Flood Warning | SHV | 4 days |
| Mar 20, 3:19 AM CDT | Lake Wind Advisory | SHV | 40 hr |
| Mar 24, 9:27 PM CDT | Lake Wind Advisory | SHV | 22 hr |
| Mar 25, 12:26 AM CDT | Severe Thunderstorm Warning | SHV | 49 min |
| Mar 26, 3:05 PM CDT | Lake Wind Advisory | SHV | 33 hr |
| Mar 30, 3:43 PM CDT | Lake Wind Advisory | SHV | 27 hr |
| Apr 5, 10:06 PM CDT | Lake Wind Advisory | SHV | 26 hr |
| Apr 7, 1:55 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 7, 4:30 PM CDT | Severe Thunderstorm Warning | SHV | 45 min |
| Apr 7, 5:26 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 23, 8:28 AM CDT | Mesoscale Discussion | SPC | 62 min |
| Apr 23, 2:50 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Apr 23, 5:24 PM CDT | Mesoscale Discussion | SPC | 36 min |
| Apr 23, 5:41 PM CDT | Tornado Watch | SPC | 9 hr |
| Apr 23, 8:47 PM CDT | Severe Thunderstorm Warning | SHV | 40 min |
| Apr 24, 1:20 AM CDT | Mesoscale Discussion | SPC | 25 min |
| Apr 24, 1:50 AM CDT | Tornado Watch | SPC | 8 hr |
| Apr 24, 3:06 AM CDT | Lake Wind Advisory | SHV | 18 hr |
| Apr 25, 5:01 AM CDT | Lake Wind Advisory | SHV | 14 hr |
| Apr 28, 4:06 PM CDT | Lake Wind Advisory | SHV | 27 hr |
| May 1, 3:18 PM CDT | Tornado Watch | SPC | 7 hr |
| May 1, 7:11 PM CDT | Mesoscale Discussion | SPC | 64 min |
| May 1, 8:31 PM CDT | Mesoscale Discussion | SPC | 44 min |
| May 10, 3:29 AM CDT | Lake Wind Advisory | SHV | 18 hr |
| May 11, 3:25 AM CDT | Lake Wind Advisory | SHV | 16 hr |
| May 12, 3:41 AM CDT | Lake Wind Advisory | SHV | 15 hr |
| May 17, 12:49 AM CDT | Severe Thunderstorm Warning | SHV | 41 min |
| May 20, 8:57 AM CDT | Mesoscale Discussion | SPC | 63 min |
| May 20, 10:28 AM CDT | Severe Thunderstorm Watch | SPC | 12 hr |
| May 20, 1:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| May 31, 12:44 PM CDT | Severe Thunderstorm Warning | SHV | 61 min |
| Jun 9, 8:46 AM CDT | Tornado Watch | SPC | 7 hr |
| Jun 9, 11:07 AM CDT | Areal Flood Advisory | SHV | 53 min |
| Jun 9, 11:15 AM CDT | Mesoscale Discussion | SPC | 90 min |
| Jun 9, 4:35 PM CDT | Flash Flood Watch | SHV | 35 hr |
| Jun 20, 5:30 AM CDT | Heat Advisory | SHV | 62 hr |
| Jul 6, 3:20 PM CDT | Flash Flood Watch | SHV | 61 hr |
| Jul 14, 3:42 AM CDT | Heat Advisory | SHV | 63 hr |
| Jul 21, 4:03 PM CDT | Heat Advisory | SHV | 27 hr |
| Jul 26, 3:20 PM CDT | Severe Thunderstorm Warning | SHV | 40 min |
| Jul 30, 3:40 PM CDT | Heat Advisory | SHV | 4 days |
| Aug 1, 4:52 AM CDT | Excessive Heat Warning | SHV | 5 days |
| Aug 4, 3:56 PM CDT | Heat Advisory | SHV | 51 hr |
| Aug 7, 3:38 PM CDT | Heat Advisory | SHV | 9 days |
| Aug 18, 3:38 PM CDT | Heat Advisory | SHV | 5 days |
| Aug 23, 1:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Sep 7, 6:00 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 10, 3:30 AM CDT | Heat Advisory | SHV | 24 hr |
| Oct 11, 2:27 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Oct 11, 6:01 PM CDT | Severe Thunderstorm Warning | SHV | 44 min |
| Oct 23, 6:40 PM CDT | Severe Thunderstorm Warning | SHV | 50 min |
| Oct 24, 12:51 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Oct 24, 1:51 PM CDT | Tornado Watch | SPC | 8 hr |
| Oct 24, 6:12 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Oct 24, 9:57 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Oct 25, 4:49 AM CDT | Lake Wind Advisory | SHV | 23 hr |
| Nov 1, 7:17 AM CDT | Dense Fog Advisory | SHV | 3 hr |
| Nov 1, 7:52 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Nov 2, 2:40 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Nov 3, 2:54 PM CDT | Lake Wind Advisory | SHV | 28 hr |
| Nov 5, 3:34 AM CDT | Freeze Warning | SHV | 29 hr |
| Nov 20, 4:27 AM CST | Dense Fog Advisory | SHV | 5 hr |
| Nov 24, 5:14 AM CST | Lake Wind Advisory | SHV | 13 hr |
| Nov 26, 4:37 AM CST | Freeze Warning | SHV | 27 hr |
| Nov 29, 1:31 PM CST | Tornado Watch | SPC | 7 hr |
| Nov 30, 4:24 AM CST | Lake Wind Advisory | SHV | 12 hr |
| Dec 11, 9:29 PM CST | Lake Wind Advisory | SHV | 19 hr |
| Dec 15, 10:51 AM CST | Lake Wind Advisory | SHV | 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 | 11 |
| Severe Thunderstorm Watch | 6 |
| Tornado Watch | 8 |
| Mesoscale Discussion | 18 |
| Flooding | |
| River Flood Warning | 4 |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 1 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 4 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 8 |
| Cold | |
| Freeze Warning | 2 |
| Hard Freeze Warning | 3 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Lake Wind Advisory | 19 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
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.