Alert archive / Texas / Hays County
Weather alerts in Hays County, Texas, 2023
174 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Hays County and its neighbors
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Alerts
- 174
- Warnings
- 67
- Watches
- 14
- Advisories
- 49
- Busiest month
- August38 alerts
- Busiest day
- April 21, 20238 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 3 tornado warnings covering Hays County in 2023 had a tornado report inside them.
Hays County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 1 | 67% | 0 | ||
| Severe thunderstorm warnings | 23 | 16 | 30% | 12 | 83% | 16 min |
| Flash flood warnings | 1 | 1 | 0% | 4 | 50% | 111 min |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Austin/San Antonio, TX: tornado warnings | 19 | 1 | 95% | 9 | 11% | 1 min |
| NWS Austin/San Antonio, TX: severe thunderstorm warnings | 338 | 124 | 63% | 450 | 91% | 28 min |
| NWS Austin/San Antonio, TX: flash flood warnings | 40 | 17 | 57% | 47 | 89% | 111 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 1, 7:43 AM CST | Dense Fog Advisory | EWX | 3 hr |
| Jan 10, 2:18 AM CST | Dense Fog Advisory | EWX | 8 hr |
| Jan 11, 5:35 AM CST | Dense Fog Advisory | EWX | 5 hr |
| Jan 18, 2:16 AM CST | Red Flag Warning | EWX | 18 hr |
| Jan 24, 8:46 AM CST | Areal Flood Advisory | EWX | 3 hr |
| Jan 28, 11:49 PM CST | Dense Fog Advisory | EWX | 10 hr |
| Jan 29, 9:27 PM CST | Winter Storm Warning | EWX | 4 days |
| Jan 29, 9:27 PM CST | Winter Weather Advisory | EWX | 4 hr |
| Feb 1, 1:50 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 4, 2:57 AM CST | Dense Fog Advisory | EWX | 8 hr |
| Feb 5, 5:42 AM CST | Dense Fog Advisory | EWX | 3 hr |
| Feb 6, 4:20 AM CST | Dense Fog Advisory | EWX | 6 hr |
| Feb 13, 2:27 AM CST | Wind Advisory | EWX | 34 hr |
| Feb 26, 6:05 AM CST | Dense Fog Advisory | EWX | 4 hr |
| Mar 1, 1:30 PM CST | Wind Advisory | EWX | 35 hr |
| Mar 1, 10:21 PM CST | Mesoscale Discussion | SPC | 114 min |
| Mar 2, 3:34 AM CST | Severe Thunderstorm Warning | EWX | 56 min |
| Mar 2, 4:11 AM CST | Mesoscale Discussion | SPC | 3 hr |
| Mar 2, 4:51 PM CST | Mesoscale Discussion | SPC | 54 min |
| Mar 2, 5:08 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 2, 6:51 PM CST | Severe Thunderstorm Warning | EWX | 54 min |
| Mar 2, 7:09 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 2, 7:38 PM CST | Severe Thunderstorm Warning | EWX | 67 min |
| Mar 2, 7:44 PM CST | Severe Thunderstorm Warning | EWX | 61 min |
| Mar 5, 4:01 AM CST | Dense Fog Advisory | EWX | 6 hr |
| Mar 16, 9:30 AM CDT | Wind Advisory | EWX | 26 hr |
| Mar 16, 9:41 PM CDT | Severe Thunderstorm Warning | EWX | 48 min |
| Mar 28, 10:50 AM CDT | Wind Advisory | EWX | 7 hr |
| Apr 3, 1:45 PM CDT | Fire Weather Watch | EWX | 24 hr |
| Apr 3, 3:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Apr 4, 2:00 PM CDT | Red Flag Warning | EWX | 28 hr |
| Apr 14, 11:53 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 15, 1:17 AM CDT | Special Weather Statement | EWX | 43 min |
| Apr 20, 12:08 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 20, 1:38 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Apr 20, 2:30 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 20, 4:28 PM CDT | Special Weather Statement | EWX | 47 min |
| Apr 20, 5:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Apr 20, 7:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Apr 20, 10:19 PM CDT | Special Weather Statement | EWX | 41 min |
| Apr 20, 10:26 PM CDT | Severe Thunderstorm Warning | EWX | 64 min |
| Apr 20, 10:42 PM CDT | Tornado Warning | EWX | 33 min |
| Apr 20, 10:43 PM CDT | Areal Flood Advisory | EWX | 3 hr |
| Apr 20, 10:55 PM CDT | Severe Thunderstorm Warning | EWX | 65 min |
| Apr 20, 11:43 PM CDT | Severe Thunderstorm Warning | EWX | 62 min |
| Apr 20, 11:57 PM CDT | Areal Flood Advisory | EWX | 3 hr |
| Apr 22, 9:47 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 26, 6:54 PM CDT | Special Weather Statement | EWX | 51 min |
| Apr 26, 7:03 PM CDT | Tornado Watch | SPC | 5 hr |
| Apr 26, 7:30 PM CDT | Special Weather Statement | EWX | 45 min |
| Apr 26, 7:42 PM CDT | Severe Thunderstorm Warning | EWX | 20 min |
| Apr 26, 9:52 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Apr 28, 1:52 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Apr 28, 2:19 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 28, 4:31 PM CDT | Severe Thunderstorm Warning | EWX | 44 min |
| Apr 28, 4:41 PM CDT | Areal Flood Advisory | EWX | 4 hr |
| Apr 28, 4:53 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 28, 5:14 PM CDT | Severe Thunderstorm Warning | EWX | 31 min |
| Apr 28, 5:40 PM CDT | Severe Thunderstorm Warning | EWX | 50 min |
| Apr 29, 2:36 AM CDT | Wind Advisory | EWX | 11 hr |
| May 5, 3:52 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 5, 8:55 PM CDT | Severe Thunderstorm Warning | EWX | 65 min |
| May 11, 11:50 AM CDT | Flood Watch | EWX | 56 hr |
| May 13, 1:02 AM CDT | Mesoscale Discussion | SPC | 58 min |
| May 13, 1:55 AM CDT | Areal Flood Advisory | EWX | 3 hr |
| May 13, 3:01 AM CDT | Areal Flood Advisory | EWX | 5 hr |
| May 13, 11:18 AM CDT | Special Weather Statement | EWX | 57 min |
| May 15, 9:17 PM CDT | Areal Flood Advisory | EWX | 3 hr |
| May 23, 6:48 PM CDT | Special Weather Statement | EWX | 27 min |
| May 24, 2:44 AM CDT | Special Weather Statement | EWX | 46 min |
| May 24, 3:27 AM CDT | Special Weather Statement | EWX | 48 min |
| Jun 2, 11:53 PM CDT | Severe Thunderstorm Warning | EWX | 55 min |
| Jun 3, 7:09 PM CDT | Severe Thunderstorm Warning | EWX | 43 min |
| Jun 3, 7:55 PM CDT | Special Weather Statement | EWX | 35 min |
| Jun 3, 8:17 PM CDT | Severe Thunderstorm Warning | EWX | 47 min |
| Jun 3, 9:03 PM CDT | Special Weather Statement | EWX | 42 min |
| Jun 3, 9:14 PM CDT | Severe Thunderstorm Warning | EWX | 61 min |
| Jun 5, 3:02 AM CDT | Special Weather Statement | EWX | 28 min |
| Jun 5, 3:19 AM CDT | Areal Flood Advisory | EWX | 4 hr |
| Jun 6, 3:05 PM CDT | Special Weather Statement | EWX | 25 min |
| Jun 8, 12:15 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Jun 8, 12:31 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 8, 1:42 PM CDT | Special Weather Statement | EWX | 48 min |
| Jun 10, 4:14 AM CDT | Severe Thunderstorm Warning | EWX | 31 min |
| Jun 10, 4:48 AM CDT | Areal Flood Advisory | EWX | 3 hr |
| Jun 13, 2:52 AM CDT | Heat Advisory | EWX | 17 hr |
| Jun 13, 2:29 PM CDT | Heat Advisory | EWX | 51 hr |
| Jun 15, 12:47 PM CDT | Excessive Heat Warning | EWX | 7 hr |
| Jun 15, 12:47 PM CDT | Heat Advisory | EWX | 4 days |
| Jun 16, 9:55 AM CDT | Excessive Heat Warning | EWX | 5 days |
| Jun 16, 6:35 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jun 16, 7:30 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 18, 5:26 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 21, 12:56 PM CDT | Heat Advisory | EWX | 6 days |
| Jun 21, 5:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jun 21, 6:06 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 21, 6:30 PM CDT | Severe Thunderstorm Warning | EWX | 42 min |
| Jun 21, 7:18 PM CDT | Special Weather Statement | EWX | 42 min |
| Jun 21, 7:49 PM CDT | Special Weather Statement | EWX | 41 min |
| Jun 21, 8:08 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 8, 1:25 PM CDT | Heat Advisory | EWX | 15 days |
| Jul 12, 2:50 AM CDT | Excessive Heat Warning | EWX | 4 days |
| Jul 17, 1:52 AM CDT | Excessive Heat Warning | EWX | 4 days |
| Jul 30, 2:24 PM CDT | Heat Advisory | EWX | 3 days |
| Aug 2, 2:33 AM CDT | Red Flag Warning | EWX | 18 hr |
| Aug 2, 1:49 PM CDT | Heat Advisory | EWX | 31 hr |
| Aug 3, 2:09 AM CDT | Red Flag Warning | EWX | 19 hr |
| Aug 3, 12:41 PM CDT | Heat Advisory | EWX | 32 hr |
| Aug 3, 12:51 PM CDT | Red Flag Warning | EWX | 32 hr |
| Aug 4, 12:59 PM CDT | Excessive Heat Warning | EWX | 32 hr |
| Aug 4, 12:59 PM CDT | Red Flag Warning | EWX | 34 hr |
| Aug 4, 12:59 PM CDT | Heat Advisory | EWX | 32 hr |
| Aug 5, 12:48 PM CDT | Excessive Heat Warning | EWX | 32 hr |
| Aug 5, 7:54 PM CDT | Red Flag Warning | EWX | 27 hr |
| Aug 6, 1:36 PM CDT | Excessive Heat Warning | EWX | 31 hr |
| Aug 6, 1:37 PM CDT | Red Flag Warning | EWX | 33 hr |
| Aug 7, 2:17 PM CDT | Red Flag Warning | EWX | 33 hr |
| Aug 7, 2:18 PM CDT | Excessive Heat Warning | EWX | 31 hr |
| Aug 8, 1:39 PM CDT | Red Flag Warning | EWX | 33 hr |
| Aug 8, 1:47 PM CDT | Excessive Heat Warning | EWX | 31 hr |
| Aug 9, 1:47 PM CDT | Excessive Heat Warning | EWX | 31 hr |
| Aug 9, 1:50 PM CDT | Red Flag Warning | EWX | 33 hr |
| Aug 10, 1:47 PM CDT | Excessive Heat Warning | EWX | 31 hr |
| Aug 10, 1:51 PM CDT | Red Flag Warning | EWX | 33 hr |
| Aug 11, 1:14 PM CDT | Red Flag Warning | EWX | 34 hr |
| Aug 11, 1:28 PM CDT | Excessive Heat Warning | EWX | 32 hr |
| Aug 12, 2:47 AM CDT | Excessive Heat Warning | EWX | 42 hr |
| Aug 12, 2:50 AM CDT | Red Flag Warning | EWX | 44 hr |
| Aug 13, 1:47 PM CDT | Excessive Heat Warning | EWX | 31 hr |
| Aug 15, 1:38 PM CDT | Heat Advisory | EWX | 31 hr |
| Aug 16, 1:16 PM CDT | Excessive Heat Warning | EWX | 32 hr |
| Aug 17, 1:47 PM CDT | Excessive Heat Warning | EWX | 31 hr |
| Aug 18, 1:20 PM CDT | Excessive Heat Warning | EWX | 32 hr |
| Aug 19, 1:33 PM CDT | Excessive Heat Warning | EWX | 31 hr |
| Aug 20, 1:49 PM CDT | Red Flag Warning | EWX | 31 hr |
| Aug 20, 1:55 PM CDT | Excessive Heat Warning | EWX | 31 hr |
| Aug 21, 1:49 PM CDT | Red Flag Warning | EWX | 30 hr |
| Aug 22, 3:37 PM CDT | Special Weather Statement | EWX | 23 min |
| Aug 23, 1:45 PM CDT | Heat Advisory | EWX | 31 hr |
| Aug 24, 12:49 PM CDT | Heat Advisory | EWX | 32 hr |
| Aug 25, 1:09 PM CDT | Heat Advisory | EWX | 32 hr |
| Aug 26, 1:46 PM CDT | Excessive Heat Warning | EWX | 30 hr |
| Sep 6, 1:58 AM CDT | Heat Advisory | EWX | 17 hr |
| Sep 7, 2:25 AM CDT | Heat Advisory | EWX | 17 hr |
| Sep 7, 1:19 PM CDT | Excessive Heat Warning | EWX | 30 hr |
| Sep 8, 1:23 PM CDT | Heat Advisory | EWX | 30 hr |
| Sep 9, 4:59 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Sep 9, 9:51 PM CDT | Special Weather Statement | EWX | 39 min |
| Sep 14, 3:40 PM CDT | Special Weather Statement | EWX | 50 min |
| Sep 14, 3:51 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Sep 14, 4:16 PM CDT | Severe Thunderstorm Warning | EWX | 59 min |
| Sep 14, 5:26 PM CDT | Severe Thunderstorm Warning | EWX | 31 min |
| Sep 24, 2:59 AM CDT | Heat Advisory | EWX | 16 hr |
| Sep 24, 4:51 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 24, 7:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 24, 9:40 PM CDT | Severe Thunderstorm Warning | EWX | 65 min |
| Sep 24, 9:53 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Oct 5, 5:07 AM CDT | Special Weather Statement | EWX | 53 min |
| Oct 5, 5:38 AM CDT | Severe Thunderstorm Warning | EWX | 30 min |
| Oct 5, 5:46 AM CDT | Areal Flood Advisory | EWX | 3 hr |
| Oct 25, 2:33 PM CDT | Flood Watch | EWX | 28 hr |
| Oct 26, 8:37 AM CDT | Mesoscale Discussion | SPC | 113 min |
| Oct 26, 9:11 AM CDT | Tornado Warning | EWX | 15 min |
| Oct 26, 10:07 AM CDT | Areal Flood Advisory | EWX | 3 hr |
| Oct 26, 11:03 AM CDT | Tornado Warning | EWX | 27 min |
| Oct 26, 12:47 PM CDT | Areal Flood Advisory | EWX | 7 hr |
| Oct 26, 12:52 PM CDT | Flash Flood Warning | EWX | 3 hr |
| Oct 30, 8:33 AM CDT | Wind Advisory | EWX | 5 hr |
| Oct 31, 2:05 AM CDT | Freeze Warning | EWX | 31 hr |
| Nov 5, 4:53 AM CST | Dense Fog Advisory | EWX | 5 hr |
| Nov 17, 2:15 AM CST | Dense Fog Advisory | EWX | 7 hr |
| Dec 9, 2:29 AM CST | Dense Fog Advisory | EWX | 7 hr |
| Dec 10, 2:30 PM CST | Freeze Warning | EWX | 19 hr |
| Dec 22, 7:11 AM CST | Dense Fog Advisory | EWX | 3 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 | 23 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 10 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 24 |
| Special Weather Statement | 20 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flood Watch | 2 |
| Areal Flood Advisory | 12 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Weather Advisory | 1 |
| Heat | |
| Excessive Heat Warning | 21 |
| Heat Advisory | 17 |
| Cold | |
| Freeze Warning | 2 |
| Wind and dust | |
| Wind Advisory | 6 |
| Fire | |
| Red Flag Warning | 16 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 13 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20222024
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.