Alert archive / Texas / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 134, NWS Austin/San Antonio, TX

May 6, 20254 counties in Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 6, 2025, 8:25 AM CDT for 4 counties in Texas. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 6, 2025, 8:25 AM CDT (13:25 UTC)
Expired
May 6, 2025, 9:15 AM CDT
In force
50 min
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Tornado
Possible
Damage threat
Considerable
Hail
1.75 in
Wind
60.0 mph

Counties Blanco County, TX, Burnet County, TX, Travis County, TX, Williamson County, TX

The radar

The Ft Hood radar (KGRK), 63 km from the middle of the area, began a volume at 13:25 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 6, 3:31 AM CDTSevere Thunderstorm WatchSPC8 hr
May 6, 8:13 AM CDTTornado WatchSPC12 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 1.4 hours before the alert went out and 267 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Fort Worth, TX at 12:00Z on 2025-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 12:00Z on 2025-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 464 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
560 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
464 m²/s²
0-3 km storm-relative helicity
387 m²/s²
Significant tornado parameter
0.0
Supercell composite
-1.5

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 6, 8:24 AM CDT, 1 minute earlier.

Area forecast discussion, May 6, 8:24 AM CDT, 1 minute before
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In the hours before

Special weather statement, May 6, 5:45 AM CDT, 2 hours 40 minutes before
Special Weather Statement
National Weather Service Austin/San Antonio TX
545 AM CDT Tue May 6 2025

TXZ186>188-061130-
Gillespie TX-Kerr TX-Bandera TX-
545 AM CDT Tue May 6 2025

...A strong thunderstorm will impact portions of northwestern
Bandera, central Kerr and southwestern Gillespie Counties through 630
AM CDT...

At 545 AM CDT, Doppler radar was tracking a strong thunderstorm 7
miles northwest of Medina, moving northeast at 35 mph.

HAZARD...Winds in excess of 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Medina, Kerrville, Fredericksburg, Ingram, Hunt, Tivydale,
Kerrville-Schreiner Park, Waltonia, and Harper.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

A Severe Thunderstorm Watch remains in effect until 1000 AM CDT for
south central Texas.

&&

LAT...LON 3024 9881 2974 9931 2985 9950 3028 9931
TIME...MOT...LOC 1045Z 213DEG 31KT 2987 9934

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

CP
Special weather statement, May 6, 8:20 AM CDT, 5 minutes before
Special Weather Statement
National Weather Service Austin/San Antonio TX
820 AM CDT Tue May 6 2025

TXZ184-061400-
Edwards TX-
820 AM CDT Tue May 6 2025

...A strong thunderstorm will impact portions of northern Edwards
County through 900 AM CDT...

At 820 AM CDT, Doppler radar was tracking a strong thunderstorm 11
miles west of Rocksprings, moving northeast at 35 mph.

HAZARD...Nickel size hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to outdoor objects is possible.

Locations impacted include...
Rocksprings and Devil's Sinkhole State Natural Area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 1000 AM CDT for
south central Texas.

&&

LAT...LON 3010 9987 3007 9992 3008 9997 3005 9997
      2983 10039 2998 10051 3029 10009 3029 10002
TIME...MOT...LOC 1320Z 234DEG 28KT 2996 10039

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...<30 MPH

Runyen

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 6, 12:07 AM CDTSpecial Weather StatementEWXTerrell23 min
May 6, 5:45 AM CDTSpecial Weather StatementEWXKerr45 min
May 6, 5:58 AM CDTSevere Thunderstorm WarningEWXBandera, Gillespie, Kerr62 min
May 6, 6:52 AM CDTSevere Thunderstorm WarningEWXBlanco, Gillespie, Kendall68 min
May 6, 7:13 AM CDTTornado WarningEWXBlanco, Gillespie47 min
May 6, 7:50 AM CDTTornado WarningEWXBlanco, Burnet, Llano40 min
May 6, 8:20 AM CDTSpecial Weather StatementEWXEdwards40 min
May 6, 8:43 AM CDTSpecial Weather StatementEWXKinney47 min
May 6, 9:08 AM CDTSevere Thunderstorm WarningEWXTravis, Williamson52 min
May 6, 9:34 AM CDTSevere Thunderstorm WarningEWXBlanco, Gillespie, Kendall41 min
May 6, 9:38 AM CDTSpecial Weather StatementEWXReal52 min
May 6, 10:02 AM CDTAreal Flood AdvisoryEWXWilliamson3 hr
May 6, 10:06 AM CDTAreal Flood AdvisoryEWXBlanco, Burnet, Gillespie, Hays, Llano, Travis3 hr
May 6, 10:10 AM CDTSpecial Weather StatementEWXBlanco50 min
May 6, 10:24 AM CDTSpecial Weather StatementEWXGillespie, Kerr51 min
May 6, 10:39 AM CDTSpecial Weather StatementEWXWilliamson51 min
May 6, 10:57 AM CDTSpecial Weather StatementEWXBandera, Medina48 min
May 6, 11:11 AM CDTSpecial Weather StatementEWXZavala49 min
May 6, 11:12 AM CDTAreal Flood AdvisoryEWXTravis, Williamson3 hr
May 6, 11:17 AM CDTSpecial Weather StatementEWXWilliamson43 min
May 6, 11:17 AM CDTSevere Thunderstorm WarningEWXFrio, Uvalde, Zavala43 min
May 6, 11:29 AM CDTFlash Flood Warning Considerable damage threatEWXTravis, Williamson3 hr
May 6, 11:43 AM CDTSevere Thunderstorm WarningEWXBlanco, Burnet, Gillespie, Hays, Kendall, Travis16 min
May 6, 11:56 AM CDTSevere Thunderstorm WarningEWXFrio, Medina, Uvalde, Zavala18 min
May 6, 12:01 PM CDTSpecial Weather StatementEWXWilliamson29 min
May 6, 12:04 PM CDTSevere Thunderstorm WarningEWXWilliamson26 min
May 6, 12:14 PM CDTAreal Flood AdvisoryEWXWilliamson3 hr
May 6, 12:37 PM CDTSevere Thunderstorm WarningEWXBexar, Medina38 min
May 6, 12:42 PM CDTSpecial Weather StatementEWXLee48 min
May 6, 1:12 PM CDTSpecial Weather StatementEWXBexar48 min
May 6, 1:30 PM CDTSpecial Weather StatementEWXLee30 min
May 6, 2:04 PM CDTFlash Flood Warning Considerable damage threatEWXLee, Williamson3 hr
May 6, 3:01 PM CDTSpecial Weather StatementEWXFayette44 min
May 6, 3:09 PM CDTSpecial Weather StatementEWXGonzales66 min
May 6, 3:29 PM CDTSevere Thunderstorm WarningEWXGonzales, Lavaca61 min
May 6, 3:48 PM CDTSpecial Weather StatementEWXFayette57 min
May 6, 4:01 PM CDTSevere Thunderstorm WarningEWXFayette59 min
May 6, 4:10 PM CDTSpecial Weather StatementEWXGonzales50 min
May 6, 4:19 PM CDTSevere Thunderstorm WarningEWXFayette, Gonzales, Lavaca56 min
May 6, 5:10 PM CDTSevere Thunderstorm WarningEWXFayette, Lavaca21 min
May 6, 5:20 PM CDTSpecial Weather StatementEWXGonzales40 min
May 6, 5:58 PM CDTSpecial Weather StatementEWXDeWitt, Lavaca77 min
May 6, 6:49 PM CDTSpecial Weather StatementEWXKarnes41 min

Nearby

Severe Thunderstorm Warnings in Texas, 2025Every severe thunderstorm warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.