Alert archive / Texas / Tornado Warnings in 2007

Tornado Warning 8, NWS Austin/San Antonio, TX

March 30, 2007Blanco County, Comal County, Hays County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Mar 30, 2007, 9:55 AM CDT for Blanco County, Comal County, Hays County, Texas. It was in force for 35 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
Mar 30, 2007, 9:55 AM CDT (14:55 UTC)
Expired
Mar 30, 2007, 10:30 AM CDT
In force
35 min
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

Counties Blanco County, TX, Comal County, TX, Hays County, TX

The radar

The Austin/San Antonio radar (KEWX), 51 km from the middle of the area, began a volume at 14:55 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 30, 10:03 AM CDTTORNADO14 W Wimberley, TXCONFIRMED TOUCH DOWN ON MOUNT SHARP ROAD.
Mar 30, 10:10 AM CDTHAIL 0.8812 Wnw Wimberley, TXJUST OFF FM 2325.
Mar 30, 10:28 AM CDTHAIL 1.75Dripping Springs, TX
Mar 30, 10:30 AM CDTTORNADOSw Dripping Springs, TXUNCONFIRMED TOUCH DOWN.

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
Mar 30, 9:51 AM CDTTornado WatchSPC8 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 2.9 hours before the alert went out and 261 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 12:00Z on 2007-03-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1603 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 12:00Z on 2007-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 138 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
1603 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
555 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
138 m²/s²
0-3 km storm-relative helicity
216 m²/s²
Significant tornado parameter
2.2
Supercell composite
7.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS54 KEWX 301455
TOREWX
TXC031-091-209-301530-
/O.NEW.KEWX.TO.W.0008.070330T1455Z-070330T1530Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
955 AM CDT FRI MAR 30 2007

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* TORNADO WARNING FOR...
  BLANCO COUNTY IN SOUTH CENTRAL TEXAS...
  COMAL COUNTY IN SOUTH CENTRAL TEXAS...
  HAYS COUNTY IN SOUTH CENTRAL TEXAS...
  THIS INCLUDES THE CITY OF DRIPPING SPRINGS...

* UNTIL 1030 AM CDT

* AT 945 AM CDT...NATIONAL WEATHER SERVICE NATIONAL WEATHER SERVICE
  METEOROLOGISTS HAVE DETECTED A SEVERE THUNDERSTORM CAPABLE OF
  PRODUCING A TORNADO NEAR FISCHER...OR ABOUT 9 MILES NORTHWEST OF
  CANYON LAKE DAM...MOVING NORTHEAST AT 25 MPH.

* THE TORNADO WILL BE NEAR...
  HENLY BY 1010 AM CDT...
  7 MILES NORTHWEST OF DRIPPING SPRINGS BY 1015 AM CDT...

IF YOU ARE IN A MOBILE HOME OR VEHICLE...GET OUT AND GO TO A STURDY
SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH
OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CDT FRIDAY EVENING FOR
SOUTH CENTRAL TEXAS.

LAT...LON 3003 9843 2994 9825 3024 9803 3033 9822

$$
4 follow-up statements
000 
WWUS54 KEWX 301501
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1001 AM CDT FRI MAR 30 2007

TXC031-091-209-301530-
/O.CON.KEWX.TO.W.0008.000000T0000Z-070330T1530Z/
BLANCO TX-HAYS TX-COMAL TX-
1001 AM CDT FRI MAR 30 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 AM CDT FOR COMAL...
HAYS AND BLANCO COUNTIES...

AT 955 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A TORNADO.  THIS TORNADO WAS LOCATED NEAR FISCHER...OR ABOUT
8 MILES SOUTHEAST OF BLANCO...MOVING NORTHEAST AT 25 MPH.

THE TORNADO WILL BE NEAR...
  HENLY BY 1025 AM CDT...
  6 MILES WEST OF DRIPPING SPRINGS BY 1030 AM CDT...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CDT FRIDAY EVENING FOR
SOUTH CENTRAL TEXAS.

LAT...LON 3003 9843 2994 9825 3024 9803 3033 9822

$$
000 
WWUS54 KEWX 301509
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1009 AM CDT FRI MAR 30 2007

TXC031-091-209-301530-
/O.CON.KEWX.TO.W.0008.000000T0000Z-070330T1530Z/
BLANCO TX-HAYS TX-COMAL TX-
1009 AM CDT FRI MAR 30 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 AM CDT FOR COMAL...
HAYS AND BLANCO COUNTIES...

AT 1008 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A TORNADO.  THIS TORNADO WAS LOCATED 8 MILES NORTH OF
FISCHER...OR ABOUT 9 MILES EAST OF BLANCO...MOVING NORTHEAST AT 25 MPH.

THE TORNADO WILL BE NEAR...
  HENLY AND 9 MILES WEST OF DRIPPING SPRINGS BY 1025 AM CDT...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CDT FRIDAY EVENING FOR
SOUTH CENTRAL TEXAS.

LAT...LON 3003 9843 2994 9825 3024 9803 3033 9822

$$
000 
WWUS54 KEWX 301515
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1015 AM CDT FRI MAR 30 2007

TXC031-091-209-301530-
/O.CON.KEWX.TO.W.0008.000000T0000Z-070330T1530Z/
BLANCO TX-HAYS TX-COMAL TX-
1015 AM CDT FRI MAR 30 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 AM CDT FOR COMAL...
HAYS AND BLANCO COUNTIES...

AT 1012 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A TORNADO.  THIS TORNADO WAS LOCATED 6 MILES SOUTH OF
HENLY...OR ABOUT 11 MILES SOUTHWEST OF DRIPPING SPRINGS...MOVING
NORTHEAST AT 30 MPH.

THE TORNADO WILL BE NEAR...
  HENLY BY 1020 AM CDT...
  DRIPPING SPRINGS BY 1030 AM CDT...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CDT FRIDAY EVENING FOR
SOUTH CENTRAL TEXAS.

LAT...LON 3003 9843 2994 9825 3024 9803 3033 9822

$$
000 
WWUS54 KEWX 301518
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1018 AM CDT FRI MAR 30 2007

TXC031-091-301528-
/O.CAN.KEWX.TO.W.0008.000000T0000Z-070330T1530Z/
BLANCO TX-COMAL TX-
1018 AM CDT FRI MAR 30 2007

...THE TORNADO WARNING FOR COMAL AND BLANCO COUNTIES IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CDT FRIDAY EVENING FOR
SOUTH CENTRAL TEXAS.

LAT...LON 3004 9829 2999 9819 3024 9803 3034 9816

$$

TXC209-301530-
/O.CON.KEWX.TO.W.0008.000000T0000Z-070330T1530Z/
HAYS TX-
1018 AM CDT FRI MAR 30 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 AM CDT FOR HAYS
COUNTY...

AT 1016 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A TORNADO.  THIS TORNADO WAS LOCATED NEAR HENLY...OR ABOUT 7
MILES SOUTHWEST OF DRIPPING SPRINGS...MOVING NORTHEAST AT 25 MPH.

THE TORNADO WILL BE NEAR...
  DRIPPING SPRINGS BY 1030 AM CDT...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CDT FRIDAY EVENING FOR
SOUTH CENTRAL TEXAS.

LAT...LON 3004 9829 2999 9819 3024 9803 3034 9816

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 30, 3:54 AM CDTFlash Flood WatchEWXAtascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 27 more27 hr
Mar 30, 7:11 AM CDTFlash Flood WarningEWXMedina3 hr
Mar 30, 9:39 AM CDTSevere Thunderstorm WarningEWXBlanco, Comal, Hays36 min
Mar 30, 10:26 AM CDTTornado WarningEWXHays19 min
Mar 30, 10:28 AM CDTFlash Flood WarningEWXBlanco, Hays, Travis, Williamson4 hr
Mar 30, 10:28 AM CDTFlash Flood WarningEWXBlanco, Hays, Travis4 hr
Mar 30, 10:35 AM CDTFlash Flood WarningEWXBexar, Medina4 hr
Mar 30, 10:43 AM CDTSevere Thunderstorm WarningEWXHays, Travis11 min
Mar 30, 11:08 AM CDTSevere Thunderstorm WarningEWXBandera37 min
Mar 30, 11:19 AM CDTFlash Flood WarningEWXBandera4 hr
Mar 30, 11:27 AM CDTSevere Thunderstorm WarningEWXKerr33 min
Mar 30, 11:50 AM CDTSevere Thunderstorm WarningEWXKendall, Kerr25 min
Mar 30, 12:11 PM CDTSevere Thunderstorm WarningEWXKendall21 min
Mar 30, 12:20 PM CDTFlash Flood WarningEWXBastrop2 hr
Mar 30, 12:38 PM CDTFlash Flood WarningEWXGillespie112 min
Mar 30, 12:54 PM CDTSevere Thunderstorm WarningEWXEdwards36 min
Mar 30, 1:20 PM CDTSevere Thunderstorm WarningEWXBlanco25 min
Mar 30, 1:38 PM CDTSevere Thunderstorm WarningEWXBlanco, Burnet, Llano31 min
Mar 30, 1:54 PM CDTFlash Flood WarningEWXBurnet3 hr
Mar 30, 2:21 PM CDTFlash Flood WarningEWXLlano3 hr
Mar 30, 3:07 PM CDTSevere Thunderstorm WarningEWXVal Verde68 min
Mar 30, 4:12 PM CDTSevere Thunderstorm WarningEWXVal Verde78 min
Mar 30, 4:39 PM CDTTornado WarningEWXVal Verde51 min
Mar 30, 5:18 PM CDTTornado WarningEWXEdwards42 min
Mar 30, 5:26 PM CDTSevere Thunderstorm WarningEWXVal Verde41 min
Mar 30, 5:57 PM CDTSevere Thunderstorm WarningEWXEdwards63 min
Mar 30, 6:19 PM CDTSevere Thunderstorm WarningEWXKinney, Real, Uvalde56 min

Nearby

Tornado Warnings in Texas, 2007Every tornado warning in 2007Tornadoes in 2007

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.