Alert archive / Texas / Special Weather Statements in 2016

Special Weather Statement, NWS Austin/San Antonio, TX

April 27, 2016Guadalupe County, Texas

NWS Austin/San Antonio, TX issued this special weather statement at Apr 27, 2016, 5:04 AM CDT for Guadalupe County, Texas. It was in force for 41 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 27, 2016, 5:04 AM CDT (10:04 UTC)
Expired: Apr 27, 2016, 5:45 AM CDT
In force: 41 min
Issued by: NWS Austin/San Antonio, TX

County Guadalupe County, TX

The radar

The Austin/San Antonio radar (KEWX), 35 km from the middle of the area, began a volume at 10:04 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 00:00Z, 10.1 hours before the alert went out and 196 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: 3361 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 776 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 134 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 7.3

Open this sounding in Storm Lab

The text

As transmitted.

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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 27, 4:24 AM CDT, 40 minutes earlier.

Area forecast discussion, Apr 27, 4:24 AM CDT, 40 minutes before

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Hazardous weather outlook, Apr 26, 10:29 PM CDT, 6 hours 35 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1029 PM CDT TUE APR 26 2016

TXZ171>173-183>194-202>209-217>225-228-280330-
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-
1029 PM CDT TUE APR 26 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

.DAY ONE...TONIGHT.

A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR PORTIONS OF THE
AREA THROUGH 5AM. A LINE OF STRONG TO SEVERE THUNDERSTORMS HAS
BEGUN TO DEVELOP ACROSS PORTION OF THE EDWARDS PLATEAU AND WILL
SHIFT THROUGH THE HILL COUNTRY AND PORTIONS OF THE I-35 CORRIDOR
LATE TONIGHT THROUGH EARLY WEDNESDAY MORNING. THIS LINE OF STORMS
WILL BE CAPABLE OF PRODUCING LARGE HAIL UP TO 2 INCHES IN DIAMETER
AND DAMAGING WIND GUSTS OF 60 TO 70 MPH. AN ISOLATED TORNADO
CANNOT BE RULED OUT AS WELL.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

ANOTHER STORM SYSTEM WILL APPROACH THE AREA ON FRIDAY AND
SATURDAY BRINGING ANOTHER CHANCE FOR STRONG TO SEVERE
THUNDERSTORMS AS WELL AS HEAVY RAIN.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED LATE THIS EVENING AS THE LINE
BEGINS TO MOVE THROUGH SOUTH CENTRAL TEXAS.

ALLEN

In the hours before

Special weather statement, Apr 27, 3:44 AM CDT, 1 hour 20 minutes before

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Special weather statement, Apr 27, 3:57 AM CDT, 1 hour 7 minutes before

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Special weather statement, Apr 27, 4:34 AM CDT, 30 minutes before

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Special weather statement, Apr 27, 4:35 AM CDT, 29 minutes before

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Special weather statement, Apr 27, 4:53 AM CDT, 11 minutes before

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Special weather statement, Apr 27, 5:04 AM 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 26, 11:12 PM CDT	Special Weather Statement	EWX	Val Verde	33 min
Apr 26, 11:33 PM CDT	Severe Thunderstorm Warning	EWX	Edwards, Val Verde	72 min
Apr 26, 11:44 PM CDT	Special Weather Statement	EWX	Burnet	46 min
Apr 27, 12:05 AM CDT	Special Weather Statement	EWX	Burnet	40 min
Apr 27, 12:21 AM CDT	Severe Thunderstorm Warning	EWX	Edwards, Gillespie, Kerr, Real, Val Verde	69 min
Apr 27, 12:25 AM CDT	Severe Thunderstorm Warning	EWX	Burnet	50 min
Apr 27, 12:48 AM CDT	Special Weather Statement	EWX	Edwards	42 min
Apr 27, 12:57 AM CDT	Severe Thunderstorm Warning	EWX	Gillespie, Llano	63 min
Apr 27, 1:11 AM CDT	Special Weather Statement	EWX	Williamson	64 min
Apr 27, 1:23 AM CDT	Severe Thunderstorm Warning	EWX	Blanco, Burnet, Gillespie	67 min
Apr 27, 1:34 AM CDT	Special Weather Statement	EWX	Bandera, Kendall, Real	41 min
Apr 27, 1:41 AM CDT	Severe Thunderstorm Warning	EWX	Kendall, Kerr	64 min
Apr 27, 2:04 AM CDT	Severe Thunderstorm Warning	EWX	Bastrop, Bexar, Caldwell, Comal, Guadalupe, Hays and 2 more	56 min
Apr 27, 2:11 AM CDT	Special Weather Statement	EWX	Bexar, Medina, Uvalde	64 min
Apr 27, 2:26 AM CDT	Special Weather Statement	EWX	Uvalde	49 min
Apr 27, 2:30 AM CDT	Special Weather Statement	EWX	Williamson	45 min
Apr 27, 3:01 AM CDT	Special Weather Statement	EWX	Atascosa, Bastrop, Bexar, Caldwell, Fayette, Frio and 8 more	59 min
Apr 27, 3:39 AM CDT	Special Weather Statement	EWX	Caldwell	36 min
Apr 27, 3:44 AM CDT	Special Weather Statement	EWX	Medina	31 min
Apr 27, 3:57 AM CDT	Special Weather Statement	EWX	Atascosa, Bastrop, Bexar, Caldwell, Comal, DeWitt and 8 more	63 min
Apr 27, 4:34 AM CDT	Special Weather Statement	EWX	Atascosa	56 min
Apr 27, 4:35 AM CDT	Special Weather Statement	EWX	Guadalupe, Wilson	55 min
Apr 27, 4:43 AM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bexar, Frio, Medina	25 min
Apr 27, 4:53 AM CDT	Special Weather Statement	EWX	Wilson	37 min
Apr 27, 5:37 AM CDT	Special Weather Statement	EWX	Atascosa	38 min
Apr 27, 6:19 AM CDT	Special Weather Statement	EWX	Karnes	56 min
Apr 27, 7:15 AM CDT	Special Weather Statement	EWX	Karnes	30 min

Nearby

Special Weather Statements in Texas, 2016 Every special weather statement in 2016

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.