Alert archive / Texas / Hays County

Weather alerts in Hays County, Texas, 2026

81 weather alerts in 2026, 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 2026. Tap one for its archive.

Alerts
81
Warnings
21
Watches
16
Advisories
21
Busiest month
May24 alerts
Busiest day
June 15, 20266 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

Hays County, 2026

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings10550%4100%11 min
Flash flood warnings440%1100%307 min

Each office's whole area, 2026

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Austin/San Antonio, TX: tornado warnings40685%1060%16 min
NWS Austin/San Antonio, TX: severe thunderstorm warnings1707357%19273%27 min
NWS Austin/San Antonio, TX: flash flood warnings1006931%19191%312 min

An office's figures cover every county it serves, including across state lines.

The year is still running; reports filed late and damage surveys can still change these figures.

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.

IssuedProductOfficeLasted
Jan 16, 1:02 PM CSTRed Flag WarningEWX31 hr
Jan 21, 12:21 PM CSTWinter Storm WatchEWX23 hr
Jan 21, 12:43 PM CSTExtreme Cold WatchEWX31 hr
Jan 22, 11:42 AM CSTWinter Storm WarningEWX3 days
Jan 22, 7:23 PM CSTExtreme Cold WarningEWX5 days
Jan 23, 1:49 AM CSTDense Fog AdvisoryEWX10 hr
Jan 24, 12:26 PM CSTIce Storm WarningEWX24 hr
Jan 24, 10:52 PM CSTMesoscale DiscussionSPC4 hr
Jan 29, 12:01 PM CSTCold Weather AdvisoryEWX46 hr
Feb 14, 10:49 AM CSTMesoscale DiscussionSPC116 min
Feb 20, 12:23 PM CSTRed Flag WarningEWX33 hr
Mar 7, 3:52 PM CSTSevere Thunderstorm WatchSPC6 hr
Mar 9, 4:16 AM CDTDense Fog AdvisoryEWX7 hr
Mar 10, 8:15 PM CDTSevere Thunderstorm WatchSPC6 hr
Mar 11, 4:55 AM CDTAreal Flood AdvisoryEWX3 hr
Mar 13, 11:41 PM CDTFire Weather WatchEWX12 hr
Mar 14, 11:48 AM CDTWind AdvisoryEWX41 hr
Mar 14, 12:00 PM CDTRed Flag WarningEWX56 hr
Apr 4, 4:10 PM CDTAreal Flood AdvisoryEWX3 hr
Apr 12, 1:02 AM CDTSevere Thunderstorm WatchSPC6 hr
Apr 12, 10:11 AM CDTFlood WatchEWX11 hr
Apr 12, 2:19 PM CDTMesoscale DiscussionSPC116 min
Apr 18, 7:21 PM CDTSpecial Weather StatementEWX39 min
Apr 22, 6:02 AM CDTDense Fog AdvisoryEWX4 hr
Apr 29, 12:54 PM CDTMesoscale DiscussionSPC2 hr
Apr 30, 11:19 AM CDTFlood WatchEWX29 hr
Apr 30, 12:57 PM CDTSevere Thunderstorm WarningEWX63 min
Apr 30, 1:38 PM CDTSevere Thunderstorm WarningEWX28 min
May 1, 1:53 AM CDTAreal Flood AdvisoryEWX8 hr
May 6, 8:32 AM CDTSevere Thunderstorm WatchSPC2 hr
May 9, 3:33 PM CDTSevere Thunderstorm WarningEWX57 min
May 9, 4:22 PM CDTSpecial Weather StatementEWX38 min
May 10, 5:17 PM CDTSevere Thunderstorm WatchSPC8 hr
May 10, 6:15 PM CDTMesoscale DiscussionSPC3 hr
May 10, 9:28 PM CDTSpecial Weather StatementEWX47 min
May 10, 9:51 PM CDTMesoscale DiscussionSPC2 hr
May 10, 10:04 PM CDTSevere Thunderstorm WarningEWX56 min
May 10, 10:16 PM CDTAreal Flood AdvisoryEWX3 hr
May 19, 5:48 PM CDTMesoscale DiscussionSPC117 min
May 19, 6:12 PM CDTSevere Thunderstorm WatchSPC7 hr
May 19, 8:20 PM CDTSevere Thunderstorm WarningEWX55 min
May 19, 8:33 PM CDTMesoscale DiscussionSPC2 hr
May 19, 8:54 PM CDTSevere Thunderstorm Warning Considerable damage threatEWX66 min
May 19, 9:26 PM CDTSevere Thunderstorm Warning Considerable damage threatEWX64 min
May 21, 12:14 PM CDTFlood WatchEWX55 hr
May 21, 5:34 PM CDTMesoscale DiscussionSPC86 min
May 21, 6:43 PM CDTSpecial Weather StatementEWX47 min
May 22, 11:37 PM CDTSpecial Weather StatementEWX38 min
May 26, 11:09 AM CDTFlood WatchEWX15 hr
May 26, 7:06 PM CDTMesoscale DiscussionSPC84 min
May 26, 8:15 PM CDTSpecial Weather StatementEWX90 min
May 26, 9:31 PM CDTSpecial Weather StatementEWX89 min
Jun 2, 8:03 PM CDTSpecial Weather StatementEWX42 min
Jun 2, 8:27 PM CDTSevere Thunderstorm WarningEWX48 min
Jun 2, 8:45 PM CDTSpecial Weather StatementEWX60 min
Jun 5, 1:25 PM CDTFlood WatchEWX12 hr
Jun 5, 8:15 PM CDTAreal Flood AdvisoryEWX4 hr
Jun 14, 9:38 AM CDTFlood WatchEWX55 hr
Jun 15, 1:53 AM CDTAreal Flood AdvisoryEWX27 min
Jun 15, 2:20 AM CDTFlash Flood Warning Considerable damage threatEWX7 hr
Jun 15, 3:15 AM CDTFlash Flood Warning Considerable damage threatEWX6 hr
Jun 15, 4:23 AM CDTFlash Flood Warning Considerable damage threatEWX4 hr
Jun 15, 8:59 AM CDTAreal Flood AdvisoryEWX91 min
Jun 15, 9:02 AM CDTAreal Flood AdvisoryEWX88 min
Jun 17, 12:01 AM CDTExtreme Heat WarningEWX45 hr
Jun 19, 5:15 AM CDTHeat AdvisoryEWX12 hr
Jun 19, 10:02 AM CDTMesoscale DiscussionSPC118 min
Jul 11, 12:36 PM CDTAreal Flood AdvisoryEWX4 hr
Jul 13, 10:03 AM CDTFlood WatchEWX4 days
Jul 15, 10:33 AM CDTFlash Flood Warning Considerable damage threatEWX5 hr
Jul 21, 11:46 AM CDTHeat AdvisoryEWX57 hr
Aug 9, 7:18 PM CDTSpecial Weather StatementEWX42 min
Aug 19, 10:52 AM CDTHeat AdvisoryEWX8 days
Aug 27, 2:20 PM CDTMesoscale DiscussionSPC115 min
Aug 27, 5:28 PM CDTSpecial Weather StatementEWX47 min
Aug 27, 5:29 PM CDTSevere Thunderstorm WarningEWX29 min
Aug 27, 6:01 PM CDTSevere Thunderstorm WarningEWX59 min
Aug 28, 8:49 PM CDTAreal Flood AdvisoryEWX3 hr
Sep 11, 12:08 PM CDTHeat AdvisoryEWX31 hr
Sep 13, 12:39 AM CDTHeat AdvisoryEWX18 hr
Sep 13, 12:19 PM CDTHeat AdvisoryEWX31 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive2025

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.