Alert archive / Texas / La Salle County
Weather alerts in La Salle County, Texas, 2017
64 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
La Salle County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 64
- Warnings
- 16
- Watches
- 8
- Advisories
- 16
- Busiest month
- May22 alerts
- Busiest day
- May 20, 20179 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering La Salle County in 2017 had a tornado report inside them.
La Salle County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 8 | 2 | 75% | 2 | 100% | 21 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Corpus Christi, TX: tornado warnings | 12 | 0 | 100% | 1 | 0% | |
| NWS Corpus Christi, TX: severe thunderstorm warnings | 92 | 34 | 63% | 85 | 91% | 25 min |
| NWS Corpus Christi, TX: flash flood warnings | 25 | 8 | 68% | 15 | 80% | 46 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, 3:25 AM CST | Wind Chill Advisory | CRP | 31 hr |
| Jan 6, 3:35 AM CST | Freeze Watch | CRP | 5 hr |
| Jan 6, 8:58 AM CST | Freeze Warning | CRP | 25 hr |
| Jan 6, 2:37 PM CST | Freeze Watch | CRP | 22 hr |
| Jan 7, 12:16 PM CST | Freeze Warning | CRP | 22 hr |
| Jan 19, 4:06 AM CST | Fire Weather Watch | CRP | 60 hr |
| Jan 20, 7:58 PM CST | Dense Fog Advisory | CRP | 12 hr |
| Jan 21, 3:38 PM CST | Red Flag Warning | CRP | 25 hr |
| Jan 21, 3:47 PM CST | Wind Advisory | CRP | 25 hr |
| Feb 2, 3:47 AM CST | Dense Fog Advisory | CRP | 5 hr |
| Feb 4, 10:54 PM CST | Dense Fog Advisory | CRP | 11 hr |
| Feb 19, 8:36 PM CST | Severe Thunderstorm Watch | SPC | 4 hr |
| Feb 19, 9:23 PM CST | Special Weather Statement | CRP | 52 min |
| Feb 19, 11:48 PM CST | Special Weather Statement | CRP | 27 min |
| Feb 24, 4:22 AM CST | Red Flag Warning | CRP | 13 hr |
| Apr 2, 8:47 AM CDT | Special Weather Statement | CRP | 28 min |
| Apr 2, 9:17 AM CDT | Special Weather Statement | CRP | 43 min |
| Apr 2, 9:22 AM CDT | Severe Thunderstorm Warning | CRP | 16 min |
| Apr 11, 4:10 PM CDT | Special Weather Statement | CRP | 35 min |
| Apr 11, 4:27 PM CDT | Severe Thunderstorm Warning | CRP | 48 min |
| Apr 11, 5:13 PM CDT | Severe Thunderstorm Warning | CRP | 32 min |
| Apr 26, 3:34 AM CDT | Red Flag Warning | CRP | 14 hr |
| Apr 29, 9:34 PM CDT | Wind Advisory | CRP | 6 hr |
| May 20, 10:15 AM CDT | Severe Thunderstorm Watch | SPC | 11 hr |
| May 20, 12:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| May 20, 2:48 PM CDT | Special Weather Statement | CRP | 42 min |
| May 20, 3:25 PM CDT | Severe Thunderstorm Warning | CRP | 39 min |
| May 20, 3:46 PM CDT | Mesoscale Discussion | SPC | 59 min |
| May 20, 4:09 PM CDT | Special Weather Statement | CRP | 36 min |
| May 20, 4:22 PM CDT | Severe Thunderstorm Warning | CRP | 38 min |
| May 20, 4:58 PM CDT | Severe Thunderstorm Warning | CRP | 32 min |
| May 20, 5:29 PM CDT | Severe Thunderstorm Warning | CRP | 46 min |
| May 23, 6:02 PM CDT | Severe Thunderstorm Warning | CRP | 43 min |
| May 23, 6:54 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| May 23, 6:58 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 26, 4:08 AM CDT | Heat Advisory | CRP | 15 hr |
| May 28, 7:19 PM CDT | Mesoscale Discussion | SPC | 56 min |
| May 28, 7:40 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 28, 9:16 PM CDT | Special Weather Statement | CRP | 29 min |
| May 28, 9:41 PM CDT | Mesoscale Discussion | SPC | 64 min |
| May 28, 9:54 PM CDT | Special Weather Statement | CRP | 36 min |
| May 28, 10:29 PM CDT | Special Weather Statement | CRP | 31 min |
| May 28, 10:30 PM CDT | Areal Flood Advisory | CRP | 2 hr |
| May 28, 11:00 PM CDT | Special Weather Statement | CRP | 30 min |
| May 31, 12:00 PM CDT | Special Weather Statement | CRP | 45 min |
| Jun 5, 2:18 AM CDT | Special Weather Statement | CRP | 27 min |
| Jun 17, 4:11 AM CDT | Heat Advisory | CRP | 15 hr |
| Jun 23, 3:49 AM CDT | Heat Advisory | CRP | 15 hr |
| Jul 8, 7:34 PM CDT | Special Weather Statement | CRP | 26 min |
| Aug 7, 10:01 AM CDT | Special Weather Statement | CRP | 44 min |
| Aug 7, 11:00 AM CDT | Areal Flood Advisory | CRP | 3 hr |
| Aug 8, 12:31 AM CDT | Areal Flood Advisory | CRP | 119 min |
| Aug 24, 5:17 PM CDT | Special Weather Statement | CRP | 43 min |
| Sep 25, 7:50 PM CDT | Tornado Warning | CRP | 25 min |
| Sep 25, 8:17 PM CDT | Special Weather Statement | CRP | 28 min |
| Sep 25, 11:05 PM CDT | Areal Flood Advisory | CRP | 3 hr |
| Sep 26, 3:41 AM CDT | Flash Flood Watch | CRP | 59 hr |
| Sep 26, 3:04 PM CDT | Special Weather Statement | CRP | 26 min |
| Sep 26, 3:24 PM CDT | Flash Flood Warning | CRP | 3 hr |
| Sep 26, 5:58 PM CDT | Special Weather Statement | CRP | 47 min |
| Sep 27, 2:00 AM CDT | Areal Flood Advisory | CRP | 3 hr |
| Sep 27, 9:33 AM CDT | River Flood Warning | CRP | 5 days |
| Dec 7, 5:53 AM CST | Winter Weather Advisory | CRP | 20 hr |
| Dec 19, 11:39 PM CST | Dense Fog Advisory | CRP | 9 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 | 8 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 4 |
| Mesoscale Discussion | 5 |
| Special Weather Statement | 19 |
| Flooding | |
| Flash Flood Warning | 1 |
| River Flood Warning | 1 |
| Flash Flood Watch | 1 |
| Areal Flood Advisory | 5 |
| Winter | |
| Winter Weather Advisory | 1 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 2 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fire | |
| Red Flag Warning | 3 |
| Fire Weather Watch | 1 |
| 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 archive20162018
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.