Alert archive / Texas / Karnes County
Weather alerts in Karnes County, Texas, 2020
97 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Karnes County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 97
- Warnings
- 19
- Watches
- 8
- Advisories
- 39
- Busiest month
- May29 alerts
- Busiest day
- March 21, 20207 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Karnes County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 14 | 4 | 71% | 3 | 67% | 44 min |
| Flash flood warnings | 2 | 2 | 0% | 0 |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Austin/San Antonio, TX: tornado warnings | 33 | 7 | 79% | 7 | 86% | 16 min |
| NWS Austin/San Antonio, TX: severe thunderstorm warnings | 223 | 77 | 65% | 235 | 88% | 26 min |
| NWS Austin/San Antonio, TX: flash flood warnings | 31 | 14 | 55% | 27 | 89% | 64 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 2, 10:52 PM CST | Dense Fog Advisory | EWX | 7 hr |
| Jan 10, 2:52 PM CST | Mesoscale Discussion | SPC | 113 min |
| Jan 10, 3:30 PM CST | Severe Thunderstorm Watch | SPC | 68 days |
| Jan 13, 7:32 PM CST | Dense Fog Advisory | EWX | 14 hr |
| Jan 22, 9:01 PM CST | Dense Fog Advisory | EWX | 10 hr |
| Jan 26, 12:42 AM CST | Dense Fog Advisory | EWX | 8 hr |
| Feb 17, 2:23 AM CST | Dense Fog Advisory | EWX | 8 hr |
| Mar 19, 7:23 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Mar 21, 9:17 AM CDT | Special Weather Statement | EWX | 43 min |
| Mar 21, 9:57 AM CDT | Special Weather Statement | EWX | 63 min |
| Mar 21, 10:08 AM CDT | Severe Thunderstorm Warning | EWX | 37 min |
| Mar 21, 10:34 AM CDT | Mesoscale Discussion | SPC | 116 min |
| Mar 21, 11:33 AM CDT | Special Weather Statement | CRP | 27 min |
| Mar 21, 12:53 PM CDT | Areal Flood Advisory | EWX | 112 min |
| Mar 21, 2:25 PM CDT | Areal Flood Advisory | EWX | 4 hr |
| Mar 25, 7:10 AM CDT | Dense Fog Advisory | EWX | 3 hr |
| Mar 25, 10:04 AM CDT | Dense Fog Advisory | EWX | 116 min |
| Apr 3, 12:41 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 3, 2:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Apr 3, 5:52 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Apr 3, 7:17 PM CDT | Areal Flood Advisory | EWX | 3 hr |
| Apr 7, 3:22 AM CDT | Dense Fog Advisory | EWX | 7 hr |
| Apr 9, 2:47 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 9, 7:34 PM CDT | Severe Thunderstorm Warning | EWX | 56 min |
| Apr 9, 7:59 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 9, 8:30 PM CDT | Severe Thunderstorm Warning | EWX | 30 min |
| Apr 11, 8:37 PM CDT | Tornado Watch | SPC | 5 hr |
| Apr 11, 11:03 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Apr 12, 2:23 AM CDT | Wind Advisory | EWX | 17 hr |
| Apr 19, 1:06 AM CDT | Dense Fog Advisory | EWX | 8 hr |
| Apr 19, 9:07 AM CDT | Dense Fog Advisory | EWX | 113 min |
| Apr 23, 1:07 AM CDT | Dense Fog Advisory | EWX | 5 hr |
| Apr 25, 11:46 AM CDT | Severe Thunderstorm Warning | EWX | 44 min |
| Apr 25, 12:53 PM CDT | Severe Thunderstorm Warning | EWX | 52 min |
| May 12, 2:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| May 12, 7:17 PM CDT | Special Weather Statement | EWX | 58 min |
| May 12, 7:33 PM CDT | Areal Flood Advisory | EWX | 3 hr |
| May 12, 7:51 PM CDT | Special Weather Statement | EWX | 54 min |
| May 12, 7:59 PM CDT | Flash Flood Warning | EWX | 3 hr |
| May 12, 8:24 PM CDT | Special Weather Statement | EWX | 51 min |
| May 15, 8:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 15, 9:14 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 15, 10:55 PM CDT | Severe Thunderstorm Warning | EWX | 65 min |
| May 15, 11:44 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 15, 11:54 PM CDT | Severe Thunderstorm Warning | EWX | 66 min |
| May 16, 12:29 AM CDT | Areal Flood Advisory | EWX | 3 hr |
| May 24, 8:21 PM CDT | Mesoscale Discussion | SPC | 114 min |
| May 24, 8:59 PM CDT | Severe Thunderstorm Warning | EWX | 61 min |
| May 24, 9:05 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 24, 10:04 PM CDT | Severe Thunderstorm Warning | EWX | 56 min |
| May 25, 7:25 PM CDT | Mesoscale Discussion | SPC | 65 min |
| May 25, 7:49 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 25, 11:18 PM CDT | Special Weather Statement | EWX | 42 min |
| May 25, 11:36 PM CDT | Severe Thunderstorm Warning | EWX | 39 min |
| May 25, 11:39 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 26, 12:21 AM CDT | Areal Flood Advisory | EWX | 3 hr |
| May 26, 4:49 PM CDT | Mesoscale Discussion | SPC | 86 min |
| May 27, 5:05 PM CDT | Mesoscale Discussion | SPC | 115 min |
| May 27, 5:23 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 27, 9:35 PM CDT | Mesoscale Discussion | SPC | 115 min |
| May 27, 9:57 PM CDT | Severe Thunderstorm Warning | EWX | 63 min |
| May 27, 10:56 PM CDT | Severe Thunderstorm Warning | EWX | 32 min |
| May 28, 6:29 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 8, 2:26 PM CDT | Heat Advisory | EWX | 29 hr |
| Jun 23, 9:41 PM CDT | Severe Thunderstorm Warning | EWX | 31 min |
| Jun 23, 10:05 PM CDT | Special Weather Statement | EWX | 55 min |
| Jun 23, 10:11 PM CDT | Severe Thunderstorm Warning | EWX | 51 min |
| Jun 23, 10:56 PM CDT | Special Weather Statement | EWX | 64 min |
| Jun 26, 6:26 AM CDT | Areal Flood Advisory | EWX | 3 hr |
| Jul 10, 2:14 AM CDT | Heat Advisory | EWX | 17 hr |
| Jul 10, 2:12 PM CDT | Heat Advisory | EWX | 30 hr |
| Jul 11, 2:14 PM CDT | Excessive Heat Warning | EWX | 54 hr |
| Jul 13, 3:09 PM CDT | Heat Advisory | EWX | 29 hr |
| Aug 2, 4:24 PM CDT | Special Weather Statement | EWX | 51 min |
| Aug 3, 7:17 PM CDT | Special Weather Statement | EWX | 43 min |
| Aug 12, 3:22 AM CDT | Heat Advisory | EWX | 16 hr |
| Aug 13, 4:05 AM CDT | Heat Advisory | EWX | 4 days |
| Aug 18, 7:23 PM CDT | Special Weather Statement | EWX | 52 min |
| Aug 18, 9:27 PM CDT | Special Weather Statement | EWX | 63 min |
| Aug 28, 4:03 AM CDT | Heat Advisory | EWX | 16 hr |
| Aug 28, 2:46 PM CDT | Heat Advisory | EWX | 29 hr |
| Aug 30, 3:13 AM CDT | Heat Advisory | EWX | 65 hr |
| Sep 3, 8:02 PM CDT | Special Weather Statement | EWX | 58 min |
| Sep 10, 12:09 AM CDT | Areal Flood Advisory | EWX | 3 hr |
| Sep 10, 1:23 AM CDT | Flash Flood Warning | EWX | 5 hr |
| Sep 10, 8:05 PM CDT | River Flood Warning | EWX | 18 hr |
| Oct 14, 7:59 AM CDT | Dense Fog Advisory | EWX | 2 hr |
| Nov 6, 4:15 AM CST | Dense Fog Advisory | EWX | 6 hr |
| Nov 10, 2:06 AM CST | Dense Fog Advisory | EWX | 6 hr |
| Nov 19, 7:16 AM CST | Dense Fog Advisory | EWX | 3 hr |
| Nov 20, 3:33 AM CST | Dense Fog Advisory | EWX | 6 hr |
| Nov 21, 3:18 AM CST | Dense Fog Advisory | EWX | 6 hr |
| Nov 30, 1:59 PM CST | Freeze Warning | EWX | 19 hr |
| Dec 11, 8:46 PM CST | Dense Fog Advisory | EWX | 10 hr |
| Dec 12, 7:34 PM CST | Wind Advisory | EWX | 28 hr |
| Dec 22, 7:28 AM CST | Dense Fog Advisory | EWX | 3 hr |
| Dec 23, 11:33 AM CST | Wind Advisory | EWX | 18 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 | 14 |
| Severe Thunderstorm Watch | 7 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 17 |
| Special Weather Statement | 14 |
| Flooding | |
| Flash Flood Warning | 2 |
| River Flood Warning | 1 |
| Areal Flood Advisory | 8 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 9 |
| Cold | |
| Freeze Warning | 1 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 19 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.