Alert archive / Texas / Special Weather Statements in 2013

Special Weather Statement, NWS Austin/San Antonio, TX

April 29, 2013Gillespie County, Texas

NWS Austin/San Antonio, TX issued this special weather statement at Apr 29, 2013, 7:28 PM CDT for Gillespie County, Texas. It was in force for 32 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 29, 2013, 7:28 PM CDT (00:28 UTC)
Expired: Apr 29, 2013, 8:00 PM CDT
In force: 32 min
Issued by: NWS Austin/San Antonio, TX

County Gillespie County, TX

The radar

The Austin/San Antonio radar (KEWX), 91 km from the middle of the area, began a volume at 00:27 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

Del Rio, TX (KDRT), launched 00:00Z, 0.5 hours before the alert went out and 230 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: 394 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 2445 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 74 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 29, 6:56 PM CDT, 32 minutes earlier.

Area forecast discussion, Apr 29, 6:56 PM CDT, 32 minutes before

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Hazardous weather outlook, Apr 29, 4:00 AM CDT, 15 hours 28 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
400 AM CDT MON APR 29 2013

TXZ171>173-183>194-202>209-217>225-228-300900-
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-
400 AM CDT MON APR 29 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

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 29, 7:08 PM CDT, 20 minutes before

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Local storm report, Apr 29, 7:10 PM CDT, 18 minutes before

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Local storm report, Apr 29, 7:23 PM CDT, 5 minutes before

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Local storm report, Apr 29, 7:25 PM CDT, 3 minutes before

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Special weather statement, Apr 29, 7:25 PM CDT, 3 minutes before

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Special weather statement, Apr 29, 7:28 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 29, 7:11 PM CDT	Areal Flood Advisory	EWX	Bexar	109 min
Apr 29, 7:25 PM CDT	Special Weather Statement	EWX	Burnet	35 min
Apr 29, 7:32 PM CDT	Special Weather Statement	EWX	Kendall	28 min
Apr 29, 7:40 PM CDT	Special Weather Statement	EWX	Frio	35 min
Apr 29, 7:44 PM CDT	Special Weather Statement	EWX	Bexar	46 min
Apr 29, 7:45 PM CDT	Special Weather Statement	EWX	Bandera	45 min
Apr 29, 7:58 PM CDT	Special Weather Statement	EWX	Gillespie	32 min
Apr 29, 8:09 PM CDT	Special Weather Statement	EWX	Blanco	51 min
Apr 29, 8:22 PM CDT	Severe Thunderstorm Warning	EWX	Gillespie, Kendall, Kerr	23 min
Apr 29, 8:23 PM CDT	Severe Thunderstorm Warning	EWX	Bexar, Medina	37 min
Apr 29, 8:53 PM CDT	Areal Flood Advisory	EWX	Bexar	2 hr
Apr 29, 8:56 PM CDT	Severe Thunderstorm Warning	EWX	Bexar, Medina	34 min
Apr 29, 10:26 PM CDT	Special Weather Statement	EWX	Medina	49 min
Apr 29, 10:43 PM CDT	Flash Flood Warning	EWX	Bexar, Medina	3 hr

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.