Alert archive / Texas / Tornado Warnings in 2023

Tornado Warning 3, NWS Austin/San Antonio, TX

March 17, 2023Dimmit County, Zavala County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Mar 17, 2023, 1:08 AM CDT for Dimmit County, Zavala County, Texas. It was in force for 23 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Mar 17, 2023, 1:08 AM CDT (06:08 UTC)
Expired
Mar 17, 2023, 1:31 AM CDT
In force
23 min
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.25 in

Counties Dimmit County, TX, Zavala County, TX

The radar

The Laughlin AFB radar (KDFX), 99 km from the middle of the area, began a volume at 06:13 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.

What was reported inside it

TimeReportWhereRemark
Mar 17, 1:17 AM CDTHAIL 0.7Carrizo Springs, TXPEA TO DIME SIZE HAIL IN PILED ON GROUND IN CARRIZO SPRINGS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 6.1 hours before the alert went out and 145 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, Del Rio, TX at 00:00Z on 2023-03-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 845 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 00:00Z on 2023-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 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
845 J/kg
Mixed-layer CIN
-89 J/kg
Mixed-layer LCL
2289 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
166 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

As transmitted.

297 
WFUS54 KEWX 170608
TOREWX
TXC127-507-170645-
/O.NEW.KEWX.TO.W.0003.230317T0608Z-230317T0645Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Austin/San Antonio TX
108 AM CDT Fri Mar 17 2023

The National Weather Service in Austin San Antonio has issued a

* Tornado Warning for...
  Northeastern Dimmit County in south central Texas...
  South central Zavala County in south central Texas...

* Until 145 AM CDT.
    
* At 108 AM CDT, severe thunderstorms capable of producing a tornado
  were located along a line extending from Las Colonias to near
  Winter Haven to Carrizo Springs, moving east at 50 mph.

  HAZARD...Tornado and half dollar size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Crystal City, Carrizo Springs, Big Wells, Asherton, Las Colonias,
  Winter Haven, Chula Vista-River Spur, Brundage, Carrizo Hill and
  Las Vegas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 2871 9956 2857 9947 2842 9944 2835 9949
      2845 9995 2861 9987 2880 9988
TIME...MOT...LOC 0608Z 288DEG 43KT 2872 9982 2860 9982 2851 9986 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.25 IN

$$

QUIGLEY
2 follow-up statements
310 
WWUS54 KEWX 170619
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
119 AM CDT Fri Mar 17 2023

TXC127-507-170645-
/O.CON.KEWX.TO.W.0003.000000T0000Z-230317T0645Z/
Dimmit TX-Zavala TX-
119 AM CDT Fri Mar 17 2023

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 AM CDT FOR
NORTHEASTERN DIMMIT AND SOUTH CENTRAL ZAVALA COUNTIES...
    
At 118 AM CDT, severe thunderstorms capable of producing tornadoes
were located along a line extending from 6 miles east of Chula
Vista-River Spur to near Brundage to near Asherton, moving east at 50
mph.

HAZARD...Tornado and half dollar size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Crystal City, Carrizo Springs, Big Wells, Asherton, Las Colonias,
Winter Haven, Chula Vista-River Spur, Brundage, Carrizo Hill and Las
Vegas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 2871 9956 2857 9947 2842 9944 2835 9949
      2845 9995 2861 9987 2880 9988
TIME...MOT...LOC 0618Z 288DEG 43KT 2869 9971 2857 9971 2848 9975 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.25 IN

$$

QUIGLEY
073 
WWUS54 KEWX 170631
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
131 AM CDT Fri Mar 17 2023

TXC127-507-170641-
/O.CAN.KEWX.TO.W.0003.000000T0000Z-230317T0645Z/
Dimmit TX-Zavala TX-
131 AM CDT Fri Mar 17 2023

...THE TORNADO WARNING FOR NORTHEASTERN DIMMIT AND SOUTH CENTRAL
ZAVALA COUNTIES IS CANCELLED...

The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.

LAT...LON 2871 9956 2857 9947 2842 9944 2835 9949
      2845 9995 2861 9987 2880 9988
TIME...MOT...LOC 0630Z 288DEG 43KT 2864 9955 2852 9955 2843 9959 

$$

QUIGLEY

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 16, 7:02 PM CDTSpecial Weather StatementEWXBurnet43 min
Mar 16, 7:29 PM CDTSpecial Weather StatementEWXBurnet46 min
Mar 16, 8:21 PM CDTSpecial Weather StatementEWXWilliamson39 min
Mar 16, 8:31 PM CDTSevere Thunderstorm WarningEWXBlanco, Burnet, Travis, Williamson26 min
Mar 16, 8:45 PM CDTSevere Thunderstorm WarningEWXWilliamson47 min
Mar 16, 9:01 PM CDTSpecial Weather StatementEWXWilliamson44 min
Mar 16, 9:10 PM CDTSevere Thunderstorm WarningEWXBastrop, Travis65 min
Mar 16, 9:32 PM CDTSpecial Weather StatementEWXTravis43 min
Mar 16, 9:35 PM CDTSpecial Weather StatementEWXWilliamson40 min
Mar 16, 9:41 PM CDTSevere Thunderstorm WarningEWXBastrop, Caldwell, Hays, Travis48 min
Mar 16, 10:16 PM CDTSevere Thunderstorm WarningEWXBastrop, Fayette, Lee40 min
Mar 16, 10:52 PM CDTSpecial Weather StatementEWXFayette38 min
Mar 16, 11:05 PM CDTSpecial Weather StatementEWXReal40 min
Mar 16, 11:23 PM CDTSpecial Weather StatementEWXFayette37 min
Mar 16, 11:30 PM CDTSpecial Weather StatementEWXKinney45 min
Mar 16, 11:46 PM CDTSpecial Weather StatementEWXCaldwell, Gonzales44 min
Mar 17, 12:00 AM CDTSpecial Weather StatementEWXMaverick45 min
Mar 17, 12:07 AM CDTSevere Thunderstorm WarningEWXMaverick38 min
Mar 17, 12:36 AM CDTSpecial Weather StatementEWXMedina39 min
Mar 17, 12:37 AM CDTSevere Thunderstorm WarningEWXDimmit, Maverick, Zavala38 min
Mar 17, 12:46 AM CDTSpecial Weather StatementEWXMaverick29 min
Mar 17, 1:01 AM CDTSevere Thunderstorm WarningEWXDimmit, Maverick, Zavala59 min
Mar 17, 1:47 AM CDTSevere Thunderstorm WarningEWXDimmit, Frio, Zavala43 min
Mar 17, 2:18 AM CDTSpecial Weather StatementEWXFrio42 min
Mar 17, 2:27 AM CDTSpecial Weather StatementEWXDimmit63 min
Mar 17, 2:45 AM CDTSpecial Weather StatementEWXAtascosa45 min

Nearby

Tornado Warnings in Texas, 2023Every tornado warning in 2023Tornadoes in 2023

Sources

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