Alert archive / Texas / Tornado Warnings in 2017

Tornado Warning 5, NWS Austin/San Antonio, TX

February 19, 20174 counties in Texas

NWS Austin/San Antonio, TX issued this tornado warning at Feb 19, 2017, 11:29 PM CST for 4 counties in Texas. It was in force for 46 min. 4 reports 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
Feb 19, 2017, 11:29 PM CST (05:29 UTC)
Expired
Feb 20, 2017, 12:15 AM CST
In force
46 min
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Bastrop County, TX, Caldwell County, TX, Hays County, TX, Travis County, TX

The radar

The Austin/San Antonio radar (KEWX), 38 km from the middle of the area, began a volume at 05:30 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
Feb 19, 11:47 PM CSTTSTM WND DMG1 E Niederwald, TXMETAL ROOF DAMAGED FROM A LARGE SHOP
Feb 19, 11:50 PM CSTTSTM WND DMG3 Ne Kyle, TXMEDIA VIEWER REPORTED SHED DESTROYED... POWER LINES DOWN... ROOF BUSTED.
Feb 20, 12:00 AM CSTTSTM WND DMG3 Ne Maha, TXMEDIA VIEWER REPORTED PORCH AWNING RIPPED OFF.
Feb 20, 12:15 AM CSTTSTM WND DMG4 Nnw Uhland, TXREPORT VIA THE WEB REPORTING ROOF WAS BLOWN OFF AND DEBRIS SCATTERED OVER 5 ACRES.

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

The watch it was issued in

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

IssuedProductOfficeLasted
Jan 2, 1:39 AM CSTSevere Thunderstorm WatchSPC59 days
Feb 19, 6:18 PM CSTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 5.5 hours before the alert went out and 259 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, Corpus Christi, TX at 00:00Z on 2017-02-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1800 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, Corpus Christi, TX at 00:00Z on 2017-02-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 178 square meters per square second.1939587897Sfc1 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
1800 J/kg
Mixed-layer CIN
-144 J/kg
Mixed-layer LCL
663 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
178 m²/s²
0-3 km storm-relative helicity
139 m²/s²
Significant tornado parameter
0.4
Supercell composite
9.8

Open this sounding in Storm Lab

The text

As transmitted.

308 
WFUS54 KEWX 200529
TOREWX
TXC021-055-209-453-200615-
/O.NEW.KEWX.TO.W.0005.170220T0529Z-170220T0615Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Austin/San Antonio TX
1129 PM CST SUN FEB 19 2017

The National Weather Service in Austin San Antonio has issued a

* Tornado Warning for...
  Northwestern Caldwell County in south central Texas...
  Southeastern Hays County in south central Texas...
  South central Travis County in south central Texas...
  West central Bastrop County in south central Texas...

* Until 1215 AM CST

* At 1129 PM CST, severe thunderstorms capable of producing both
  tornadoes and extensive straight line wind damage were located near
  San Marcos, moving east at 45 mph.

  HAZARD...Tornado. 

  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...
  Austin, San Marcos, Kyle, Buda, Wimberley, Austin Bergstrom Int Ap,
  Uhland, Mustang Ridge, Niederwald, Onion Creek, Shady Hollow,
  Mountain City, San Leanna, Hays, Creedmoor, Maha, Del Valle, Pilot
  Knob, Manchaca and Hays City.

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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 2987 9805 3007 9807 3026 9760 2999 9751
TIME...MOT...LOC 0529Z 250DEG 38KT 2993 9800 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

MO
3 follow-up statements
112 
WWUS54 KEWX 200535
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
1135 PM CST SUN FEB 19 2017

TXC021-055-209-453-200615-
/O.CON.KEWX.TO.W.0005.000000T0000Z-170220T0615Z/
Caldwell TX-Hays TX-Travis TX-Bastrop TX-
1135 PM CST SUN FEB 19 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1215 AM CST FOR
NORTHWESTERN CALDWELL...SOUTHEASTERN HAYS...SOUTH CENTRAL TRAVIS AND
WEST CENTRAL BASTROP COUNTIES...

At 1134 PM CST, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located near
Kyle, moving east at 45 mph.

HAZARD...Tornado. 

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...
Austin, San Marcos, Kyle, Buda, Austin Bergstrom Int Ap, Uhland,
Mustang Ridge, Niederwald, Onion Creek, Mountain City, Creedmoor,
Maha, Del Valle, Pilot Knob and Mendoza.

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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 2989 9796 3004 9799 3026 9760 2999 9751
TIME...MOT...LOC 0534Z 250DEG 38KT 2995 9793 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

MO
149 
WWUS54 KEWX 200558
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
1158 PM CST SUN FEB 19 2017

TXC209-200608-
/O.CAN.KEWX.TO.W.0005.000000T0000Z-170220T0615Z/
Hays TX-
1158 PM CST SUN FEB 19 2017

...THE TORNADO WARNING FOR SOUTHEASTERN HAYS COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 100 AM CST for
south central Texas.

LAT...LON 2999 9751 2994 9775 2999 9776 3003 9771
      3008 9778 3015 9780 3026 9760
TIME...MOT...LOC 0558Z 240DEG 50KT 3011 9758 

$$

TXC021-055-453-200615-
/O.CON.KEWX.TO.W.0005.000000T0000Z-170220T0615Z/
Caldwell TX-Travis TX-Bastrop TX-
1158 PM CST SUN FEB 19 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1215 AM CST FOR NORTH
CENTRAL CALDWELL...SOUTH CENTRAL TRAVIS AND WEST CENTRAL BASTROP
COUNTIES...

At 1158 PM CST, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located near
Cedar Creek, or 8 miles southeast of Austin Bergstrom Int Ap, moving
northeast at 60 mph.

HAZARD...Tornado. 

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...
Austin, Austin Bergstrom Int Ap, Mustang Ridge, Niederwald, Onion
Creek, Creedmoor, Maha, Del Valle, Pilot Knob and Mendoza.

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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 2999 9751 2994 9775 2999 9776 3003 9771
      3008 9778 3015 9780 3026 9760
TIME...MOT...LOC 0558Z 240DEG 50KT 3011 9758 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

MO
578 
WWUS54 KEWX 200609
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
1209 AM CST MON FEB 20 2017

TXC021-055-453-200619-
/O.EXP.KEWX.TO.W.0005.000000T0000Z-170220T0615Z/
Caldwell TX-Travis TX-Bastrop TX-
1209 AM CST MON FEB 20 2017

...THE TORNADO WARNING FOR NORTH CENTRAL CALDWELL...SOUTH CENTRAL
TRAVIS AND WEST CENTRAL BASTROP COUNTIES WILL EXPIRE AT 1215 AM
CST...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning will be allowed to expire.
A tornado warning remains in effect until 1230 AM CST for 
Northeastern Travis County and North central Bastrop County.

A Severe Thunderstorm Watch remains in effect until 200 AM CST for
south central Texas.

LAT...LON 2999 9751 2994 9775 2999 9776 3003 9771
      3008 9778 3015 9780 3026 9760
TIME...MOT...LOC 0609Z 250DEG 38KT 3015 9746 

$$

MO

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 19, 6:03 PM CSTAreal Flood AdvisoryEWXEdwards, Kinney, Maverick3 hr
Feb 19, 6:29 PM CSTSevere Thunderstorm WarningEWXEdwards, Kinney46 min
Feb 19, 6:33 PM CSTSpecial Weather StatementEWXKinney42 min
Feb 19, 7:08 PM CSTSpecial Weather StatementEWXKinney, Maverick52 min
Feb 19, 7:15 PM CSTSpecial Weather StatementEWXReal45 min
Feb 19, 7:20 PM CSTSevere Thunderstorm WarningEWXEdwards, Real55 min
Feb 19, 7:42 PM CSTFlash Flood WarningEWXKinney, Maverick3 hr
Feb 19, 7:57 PM CSTSevere Thunderstorm WarningEWXEdwards, Kerr, Real33 min
Feb 19, 8:06 PM CSTSevere Thunderstorm WarningEWXDimmit, Kinney, Maverick, Uvalde, Zavala39 min
Feb 19, 8:09 PM CSTSpecial Weather StatementEWXDimmit51 min
Feb 19, 8:13 PM CSTSpecial Weather StatementEWXKerr, Real62 min
Feb 19, 8:42 PM CSTSpecial Weather StatementEWXBandera, Frio, Medina48 min
Feb 19, 9:10 PM CSTSevere Thunderstorm WarningEWXMedina50 min
Feb 19, 9:31 PM CSTSpecial Weather StatementEWXAtascosa, Bandera, Bexar, Frio, Gillespie, Kendall and 1 more59 min
Feb 19, 10:16 PM CSTAreal Flood AdvisoryEWXBexar3 hr
Feb 19, 10:26 PM CSTSpecial Weather StatementEWXAtascosa, Bexar, Comal, Guadalupe, Karnes, Wilson64 min
Feb 19, 10:31 PM CSTSpecial Weather StatementEWXBlanco, Burnet, Hays, Travis, Williamson59 min
Feb 19, 10:34 PM CSTSevere Thunderstorm WarningEWXBexar, Comal, Guadalupe, Wilson40 min
Feb 19, 10:39 PM CSTTornado WarningEWXBexar, Comal, Guadalupe36 min
Feb 19, 10:56 PM CSTSevere Thunderstorm WarningEWXBexar, Comal, Gonzales, Guadalupe, Hays, Wilson42 min
Feb 19, 11:01 PM CSTAreal Flood AdvisoryEWXBexar, Blanco, Comal, Kendall119 min
Feb 19, 11:02 PM CSTTornado WarningEWXComal, Guadalupe13 min
Feb 19, 11:22 PM CSTAreal Flood AdvisoryEWXBlanco, Burnet, Hays, Travis, Williamson113 min
Feb 19, 11:26 PM CSTFlash Flood WarningEWXBexar4 hr
Feb 19, 11:31 PM CSTTornado WarningEWXCaldwell, Guadalupe, Hays29 min
Feb 19, 11:38 PM CSTSpecial Weather StatementEWXBurnet, Travis, Williamson37 min
Feb 19, 11:40 PM CSTAreal Flood AdvisoryEWXCaldwell, Guadalupe, Hays, Travis2 hr
Feb 19, 11:53 PM CSTSevere Thunderstorm WarningEWXBastrop, Caldwell, Hays, Travis37 min
Feb 20, 12:05 AM CSTTornado WarningEWXBastrop, Travis25 min
Feb 20, 12:19 AM CSTAreal Flood AdvisoryEWXBastrop, Caldwell, Lee, Travis, Williamson116 min
Feb 20, 12:22 AM CSTSevere Thunderstorm WarningEWXBastrop, Lee, Travis, Williamson53 min
Feb 20, 12:23 AM CSTTornado WarningEWXWilliamson22 min
Feb 20, 12:40 AM CSTSpecial Weather StatementEWXFayette, Gonzales50 min
Feb 20, 1:01 AM CSTSpecial Weather StatementEWXFayette, Lavaca, Lee44 min
Feb 20, 1:17 AM CSTRiver Flood WarningEWXBexar, Wilson43 hr
Feb 20, 1:38 AM CSTAreal Flood AdvisoryEWXBastrop, DeWitt, Fayette, Lavaca, Lee112 min
Feb 20, 1:48 AM CSTSpecial Weather StatementEWXFayette, Lavaca42 min
Feb 20, 2:02 AM CSTSpecial Weather StatementEWXDeWitt, Gonzales, Guadalupe, Karnes, Wilson73 min
Feb 20, 2:20 AM CSTAreal Flood AdvisoryEWXAtascosa, Guadalupe, Karnes, Wilson115 min
Feb 20, 2:53 AM CSTAreal Flood AdvisoryEWXBastrop, Caldwell, Fayette, Gonzales, Lee, Travis and 1 more112 min
Feb 20, 3:14 AM CSTAreal Flood AdvisoryEWXBexar106 min
Feb 20, 3:35 AM CSTAreal Flood AdvisoryEWXBastrop, DeWitt, Fayette, Karnes, Lavaca, Lee3 hr
Feb 20, 9:58 AM CSTRiver Flood WarningEWXKarnes, Wilson48 hr

Nearby

Tornado Warnings in Texas, 2017Every tornado warning in 2017Tornadoes in 2017

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.