Alert archive / Texas / Special Weather Statements in 2016

Special Weather Statement, NWS Austin/San Antonio, TX

March 8, 2016Val Verde County, Texas

NWS Austin/San Antonio, TX issued this special weather statement at Mar 8, 2016, 2:43 PM CST for Val Verde County, Texas. It was in force for 47 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
Mar 8, 2016, 2:43 PM CST (20:43 UTC)
Expired
Mar 8, 2016, 3:30 PM CST
In force
47 min
Issued by
NWS Austin/San Antonio, TX

County Val Verde County, TX

The radar

The Laughlin AFB radar (KDFX), 113 km from the middle of the area, began a volume at 20:46 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 (KDLF), launched 12:00Z, 8.7 hours before the alert went out and 61 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 2016-03-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2132 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 12:00Z on 2016-03-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 150 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
2132 J/kg
Mixed-layer CIN
-90 J/kg
Mixed-layer LCL
716 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
150 m²/s²
0-3 km storm-relative helicity
170 m²/s²
Significant tornado parameter
1.0
Supercell composite
3.7

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 Mar 8, 11:52 AM CST, 2 hours 51 minutes earlier.

Area forecast discussion, Mar 8, 11:52 AM CST, 2 hours 51 minutes before
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Hazardous weather outlook, Mar 8, 5:42 AM CST, 9 hours 1 minute before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
542 AM CST TUE MAR 8 2016

TXZ171>173-183>194-202>209-217>225-228-091145-
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-
542 AM CST TUE MAR 8 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

.DAY ONE...TODAY AND TONIGHT.

A LINE OF STRONG STORMS MAY CLIP PORTIONS OF LLANO AND NORTHERN
BURNET COUNTY THIS MORNING. SOME OF THE STORMS COULD PRODUCE SMALL
HAIL AND GUSTY WINDS UP TO 50 MPH.

STRONG TO SEVERE STORMS WILL DEVELOP ACROSS THE BIG BEND AND
MEXICO BY LATE THIS AFTERNOON...THEN MOVE ACROSS SOUTH CENTRAL
TEXAS THIS EVENING THROUGH EARLY WEDNESDAY MORNING. THE PRIMARY
SEVERE THREATS ARE DAMAGING WINDS AND LARGE HAIL...BUT ONE OR TWO
TORNADOES ARE POSSIBLE AS WELL AS LOCALLY HEAVY RAIN. TOTAL
RAINFALL AMOUNTS SHOULD AVERAGE 1 TO 3 INCHES...WITH AN ISOLATED
POCKET OR TWO OF UP TO 5 INCHES EAST OF I-35. THIS COULD CAUSE
SOME FLOODING IN URBAN AREAS AS WELL AS OTHER AREAS THAT NORMALLY
HAVE FASTER RUNOFF.

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

ADDITIONAL SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED
THURSDAY AND FRIDAY...BUT THESE SHOULD POSE NO SEVERE OR HEAVY
RAIN THREAT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE TONIGHT.

In the hours before

Local storm report, Mar 8, 9:29 AM CST, 5 hours 14 minutes before
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Local storm report, Mar 8, 12:45 PM CST, 1 hour 58 minutes before
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Local storm report, Mar 8, 1:18 PM CST, 1 hour 25 minutes before
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Local storm report, Mar 8, 2:17 PM CST, 26 minutes before
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Local storm report, Mar 8, 2:35 PM CST, 8 minutes before
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Special weather statement, Mar 8, 2:43 PM CST, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
243 PM CST TUE MAR 8 2016

TXZ183-082130-
VAL VERDE TX-
243 PM CST TUE MAR 8 2016

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL VAL VERDE COUNTY UNTIL
330 PM CST...

AT 243 PM CST...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
SEMINOLE CANYON STATE PARK...OR 9 MILES WEST OF COMSTOCK...MOVING
NORTHEAST AT 20 MPH.

DIME SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
SEMINOLE CANYON STATE PARK...SHUMLA AND BAKERS CROSSING.

LAT...LON 2976 10140 2977 10141 3005 10124 2990 10098
      2962 10125 2963 10127 2961 10128 2962 10131
      2966 10131 2966 10135 2965 10136 2970 10137
      2971 10140 2973 10139 2975 10142
TIME...MOT...LOC 2043Z 213DEG 18KT 2972 10132

HAMPSHIRE

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 8, 1:12 AM CSTSpecial Weather StatementEWXVal Verde48 min
Mar 8, 1:23 AM CSTSpecial Weather StatementEWXVal Verde52 min
Mar 8, 1:44 AM CSTSevere Thunderstorm WarningEWXVal Verde46 min
Mar 8, 1:47 AM CSTSpecial Weather StatementEWXVal Verde43 min
Mar 8, 2:22 AM CSTSpecial Weather StatementEWXEdwards38 min
Mar 8, 2:32 AM CSTSpecial Weather StatementEWXVal Verde28 min
Mar 8, 2:37 AM CSTSpecial Weather StatementEWXEdwards38 min
Mar 8, 3:03 AM CSTAreal Flood AdvisoryEWXVal Verde3 hr
Mar 8, 3:09 AM CSTSevere Thunderstorm WarningEWXEdwards, Val Verde28 min
Mar 8, 6:28 AM CSTSpecial Weather StatementEWXLlano32 min
Mar 8, 6:56 AM CSTSpecial Weather StatementEWXLlano34 min
Mar 8, 7:37 AM CSTSevere Thunderstorm WarningEWXBurnet, Llano38 min
Mar 8, 8:51 AM CSTSpecial Weather StatementEWXLee24 min
Mar 8, 9:02 AM CSTSpecial Weather StatementEWXWilliamson43 min
Mar 8, 9:16 AM CSTTornado WarningEWXWilliamson29 min
Mar 8, 3:00 PM CSTSevere Thunderstorm WarningEWXVal Verde75 min
Mar 8, 4:14 PM CSTSpecial Weather StatementEWXVal Verde61 min

Nearby

Special Weather Statements in Texas, 2016Every 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.