Alert archive / Texas / Special Weather Statements in 2013

Special Weather Statement, NWS Austin/San Antonio, TX

April 3, 2013DeWitt County, Karnes County, Texas

NWS Austin/San Antonio, TX issued this special weather statement at Apr 3, 2013, 6:25 PM CDT for DeWitt County, Karnes County, Texas. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 3, 2013, 6:25 PM CDT (23:25 UTC)
Expired: Apr 3, 2013, 7:00 PM CDT
In force: 35 min
Issued by: NWS Austin/San Antonio, TX

Counties DeWitt County, TX, Karnes County, TX

The radar

The Austin/San Antonio radar (KEWX), 100 km from the middle of the area, began a volume at 23:27 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 nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 11.4 hours before the alert went out and 136 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 397 J/kg
Mixed-layer CIN: -442 J/kg
Mixed-layer LCL: 1088 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 37 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Apr 3, 2:58 PM CDT, 3 hours 27 minutes earlier.

Area forecast discussion, Apr 3, 2:58 PM CDT, 3 hours 27 minutes before

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Hazardous weather outlook, Apr 3, 4:37 AM CDT, 13 hours 48 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
437 AM CDT WED APR 3 2013

TXZ171>173-183>194-202>209-217>225-228-041200-
LLANO-BURNET-WILLIAMSON-VAL VERDE-EDWARDS-REAL-KERR-BANDERA-
GILLESPIE-KENDALL-BLANCO-HAYS-TRAVIS-BASTROP-LEE-KINNEY-UVALDE-
MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL-FAYETTE-MAVERICK-ZAVALA-
FRIO-ATASCOSA-WILSON-KARNES-GONZALES-DE WITT-LAVACA-DIMMIT-
437 AM CDT WED APR 3 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

.DAY ONE...TODAY AND TONIGHT...

SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ARE EXPECTED TODAY
ACROSS MUCH OF SOUTH CENTRAL TEXAS. STRONG THUNDERSTORMS ARE
POSSIBLE EAST OF A LINE FROM LLANO TO SAN MARCOS TO YORKTOWN.
THIS INCLUDES THE AUSTIN METRO AREA. THE STRONGER STORMS WILL
HAVE THE POTENTIAL TO PRODUCE DIME SIZED HAIL.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

In the hours before

Local storm report, Apr 3, 4:25 PM CDT, 2 hours before

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Special weather statement, Apr 3, 4:49 PM CDT, 1 hour 36 minutes before

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Special weather statement, Apr 3, 4:58 PM CDT, 1 hour 27 minutes before

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Local storm report, Apr 3, 5:19 PM CDT, 1 hour 6 minutes before

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Special weather statement, Apr 3, 5:52 PM CDT, 33 minutes before

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Special weather statement, Apr 3, 6:25 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 2, 7:10 PM CDT	Special Weather Statement	EWX	Lavaca	35 min
Apr 2, 7:16 PM CDT	Severe Thunderstorm Warning	EWX	Val Verde	59 min
Apr 2, 7:34 PM CDT	Areal Flood Advisory	EWX	Bastrop, Caldwell, Fayette, Gonzales	116 min
Apr 2, 7:42 PM CDT	Severe Thunderstorm Warning	EWX	Lavaca	33 min
Apr 2, 7:52 PM CDT	Special Weather Statement	EWX	Gonzales	38 min
Apr 2, 8:03 PM CDT	Special Weather Statement	EWX	Fayette	42 min
Apr 2, 8:14 PM CDT	Severe Thunderstorm Warning	EWX	Edwards, Kinney, Maverick, Val Verde	46 min
Apr 2, 8:54 PM CDT	Special Weather Statement	EWX	Edwards, Kinney, Maverick, Real, Uvalde	66 min
Apr 2, 9:53 PM CDT	Special Weather Statement	EWX	Bandera, Gillespie, Kendall, Kerr, Medina, Uvalde	52 min
Apr 2, 9:59 PM CDT	Severe Thunderstorm Warning	EWX	Dimmit, Maverick, Zavala	61 min
Apr 2, 10:21 PM CDT	Special Weather Statement	EWX	Bandera, Blanco, Burnet, Frio, Gillespie, Kendall and 2 more	39 min
Apr 2, 10:54 PM CDT	Special Weather Statement	EWX	Bexar, Blanco, Burnet, Frio, Kendall, Llano and 1 more	66 min
Apr 2, 10:57 PM CDT	Severe Thunderstorm Warning	EWX	Dimmit	63 min
Apr 2, 11:21 PM CDT	Severe Thunderstorm Warning	EWX	Bexar, Comal, Guadalupe	54 min
Apr 2, 11:51 PM CDT	Special Weather Statement	EWX	Atascosa, Caldwell, Comal, Guadalupe, Hays, Travis and 2 more	39 min
Apr 3, 12:16 AM CDT	Special Weather Statement	EWX	Atascosa, Bastrop, Caldwell, Gonzales, Guadalupe, Hays and 4 more	59 min
Apr 3, 12:54 AM CDT	Special Weather Statement	EWX	Bastrop, DeWitt, Fayette, Gonzales, Karnes, Lavaca and 1 more	66 min
Apr 3, 10:42 AM CDT	Special Weather Statement	EWX	Medina	48 min
Apr 3, 11:15 AM CDT	Special Weather Statement	EWX	Bexar	45 min
Apr 3, 11:43 AM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bexar, Medina	47 min
Apr 3, 11:57 AM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bexar	48 min
Apr 3, 12:26 PM CDT	Special Weather Statement	EWX	Guadalupe	34 min
Apr 3, 2:08 PM CDT	Special Weather Statement	EWX	Atascosa	37 min
Apr 3, 4:49 PM CDT	Special Weather Statement	EWX	Gonzales, Lavaca	56 min
Apr 3, 4:58 PM CDT	Special Weather Statement	EWX	Atascosa	62 min
Apr 3, 5:52 PM CDT	Special Weather Statement	EWX	Karnes, Wilson	53 min
Apr 3, 6:42 PM CDT	Special Weather Statement	EWX	Gonzales	48 min

Nearby

Special Weather Statements in Texas, 2013 Every special weather statement in 2013

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.