Alert archive / Texas / Special Weather Statements in 2016

Special Weather Statement, NWS Austin/San Antonio, TX

April 17, 2016Real County, Texas

NWS Austin/San Antonio, TX issued this special weather statement at Apr 17, 2016, 1:59 PM CDT for Real County, Texas. It was in force for 46 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 17, 2016, 1:59 PM CDT (18:59 UTC)
Expired
Apr 17, 2016, 2:45 PM CDT
In force
46 min
Issued by
NWS Austin/San Antonio, TX

County Real County, TX

The radar

The Laughlin AFB radar (KDFX), 72 km from the middle of the area, began a volume at 19:00 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, 7.0 hours before the alert went out and 118 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 2016-04-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 595 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 2016-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 331 square meters per square second.193958Sfc1 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
595 J/kg
Mixed-layer CIN
-88 J/kg
Mixed-layer LCL
625 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
331 m²/s²
0-3 km storm-relative helicity
477 m²/s²
Significant tornado parameter
0.0
Supercell composite
11.7

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 Apr 17, 1:20 PM CDT, 39 minutes earlier.

Area forecast discussion, Apr 17, 1:20 PM CDT, 39 minutes before
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Hazardous weather outlook, Apr 17, 5:18 AM CDT, 8 hours 41 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
518 AM CDT SUN APR 17 2016

TXZ171>173-183>194-202>209-217>225-228-181030-
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-
518 AM CDT SUN APR 17 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

...A FLASH FLOOD WATCH IS IN EFFECT FROM 10AM SUNDAY TO 10AM
TUESDAY FOR MOST OF SOUTH CENTRAL TEXAS...

.DAY ONE...TODAY AND TONIGHT.

HEAVY RAINFALL WILL LIKELY LEAD TO AREAS OF RIVER AND FLASH
FLOODING ACROSS SOUTH CENTRAL TEXAS TODAY...INCLUDING BOTH THE
AUSTIN AND SAN ANTONIO METRO AREAS. THE MOST CONCERNING LOCATIONS
ARE ALONG AND EAST OF A KERRVILLE TO PEARSALL LINE. ON
AVERAGE...THIS AREA IS LIKELY TO RECEIVE 3 TO 6 INCHES WITH
ISOLATED HIGHER AMOUNTS OF 8 TO 12 INCHES POSSIBLE. IMPACTS WILL
BE GREATER IN THE LOCALIZED HIGHER AMOUNTS THAT ARE EXPECTED TO BE
NORTH OF I-10 AND EAST OF U.S. HIGHWAY 281. LOWER AMOUNTS OF
RAINFALL ARE EXPECTED FARTHER WEST ACROSS THE RIO GRANDE PLAINS
AND EDWARDS PLATEAU BUT ENOUGH COULD FALL TO CAUSE LOCALIZED
FLOODING ISSUES THERE AS WELL. PLEASE STAY ALERT FOR RAPIDLY
CHANGING WEATHER CONDITIONS.

IN ADDITION TO THE THREAT OF HEAVY RAINFALL...THERE IS A SLIGHT
RISK FOR SEVERE THUNDERSTORMS. DAMAGING WIND GUSTS WILL BE THE
MAIN SEVERE WEATHER CONCERN. HOWEVER...AN ISOLATED TORNADO CAN NOT
BE RULED OUT ON SUNDAY.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THE STORM COMPLEX RESULTING IN HEAVY RAINS SUNDAY WILL CONTINUE TO
PRODUCE HEAVY RAINFALL POSSIBILITIES THROUGH MONDAY AND INTO
MONDAY NIGHT. ANY ADDITIONAL HEAVY RAINFALL ON MONDAY WILL LEAD TO
POSSIBLE RAPID FLASH FLOODING OR WORSEN ANY ONGOING FLOODING THAT
MAY DEVELOP TODAY.

IN ADDITION TO THE THREAT OF HEAVY RAINFALL...THERE IS A SLIGHT
RISK FOR SEVERE THUNDERSTORMS. DAMAGING WIND GUSTS AND QUARTER
SIZED HAIL WILL BE THE MAIN SEVERE WEATHER CONCERNS. AN ISOLATED
TORNADO CAN ALSO NOT BE RULED OUT ON MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED TODAY AND MONDAY.

TB3

In the hours before

Local storm report, Apr 17, 12:47 PM CDT, 1 hour 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1247 PM CDT SUN APR 17 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1240 PM     FLASH FLOOD      PAIGE                   30.22N  97.12W
04/17/2016                   BASTROP            TX   EMERGENCY MNGR

            HWY 21 EASTBOUND AT RAILROAD TRACKS IS FLOODED

&&

EVENT NUMBER EWX1600196

CVP
Local storm report, Apr 17, 12:52 PM CDT, 1 hour 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1252 PM CDT SUN APR 17 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1252 PM     FLASH FLOOD      BASTROP                 30.11N  97.31W
04/17/2016                   BASTROP            TX   EMERGENCY MNGR

            SEVERAL ROADS IN CENTRAL BASTROP COUNTY CLOSED DUE TO
            FLASH FLOODING

&&

EVENT NUMBER EWX1600197

CVP
Special weather statement, Apr 17, 1:15 PM CDT, 44 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
115 PM CDT SUN APR 17 2016

TXZ185-203-171900-
REAL TX-UVALDE TX-
115 PM CDT SUN APR 17 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN UVALDE AND SOUTHERN REAL
COUNTIES UNTIL 200 PM CDT...

AT 113 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
REAGAN WELLS...OR 17 MILES SOUTH OF LEAKEY...MOVING NORTHEAST AT 15
MPH.

NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
LEAKEY...CAMP WOOD...CONCAN...GARNER STATE PARK...RIO FRIO...TUFF AND
REAGAN WELLS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 2966 9960 2963 9960 2963 9958 2955 9952
      2936 9985 2950 9999 2979 10002 2980 10002
      2992 9980
TIME...MOT...LOC 1813Z 229DEG 14KT 2949 9986

LJH
Local storm report, Apr 17, 1:38 PM CDT, 21 minutes before
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Local storm report, Apr 17, 1:52 PM CDT, 7 minutes before
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Special weather statement, Apr 17, 1:59 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.

IssuedProductOfficeCountiesLasted
Apr 17, 3:53 AM CDTSpecial Weather StatementEWXEdwards67 min
Apr 17, 6:30 AM CDTAreal Flood AdvisoryEWXEdwards, Val Verde3 hr
Apr 17, 8:56 AM CDTSpecial Weather StatementEWXReal64 min
Apr 17, 10:03 AM CDTAreal Flood AdvisoryEWXEdwards, Kinney3 hr
Apr 17, 11:11 AM CDTRiver Flood WarningEWXVal Verde23 hr
Apr 17, 12:10 PM CDTAreal Flood AdvisoryEWXBastrop, Lee3 hr
Apr 17, 12:30 PM CDTSpecial Weather StatementEWXUvalde45 min
Apr 17, 12:48 PM CDTFlash Flood WarningEWXBastrop6 hr
Apr 17, 1:15 PM CDTSpecial Weather StatementEWXReal45 min
Apr 17, 2:23 PM CDTAreal Flood AdvisoryEWXTravis, Williamson6 hr
Apr 17, 2:27 PM CDTAreal Flood AdvisoryEWXReal, Uvalde3 hr
Apr 17, 2:51 PM CDTAreal Flood AdvisoryEWXHays, Travis3 hr
Apr 17, 3:09 PM CDTSpecial Weather StatementEWXBexar51 min
Apr 17, 3:18 PM CDTSpecial Weather StatementEWXBlanco27 min
Apr 17, 3:34 PM CDTSpecial Weather StatementEWXAtascosa26 min
Apr 17, 4:00 PM CDTSpecial Weather StatementEWXBexar45 min
Apr 17, 4:04 PM CDTSpecial Weather StatementEWXAtascosa41 min
Apr 17, 4:14 PM CDTTornado WarningEWXAtascosa31 min
Apr 17, 4:23 PM CDTSevere Thunderstorm WarningEWXBexar, Comal, Kendall52 min
Apr 17, 4:31 PM CDTSpecial Weather StatementEWXWilliamson44 min
Apr 17, 4:41 PM CDTRiver Flood WarningEWXGonzales4 days
Apr 17, 4:41 PM CDTRiver Flood WarningEWXDeWitt24 hr
Apr 17, 4:41 PM CDTRiver Flood WarningEWXComal, Guadalupe26 hr
Apr 17, 4:41 PM CDTRiver Flood WarningEWXComal, Gonzales, Guadalupe20 hr
Apr 17, 4:41 PM CDTRiver Flood WarningEWXComal, Guadalupe29 hr
Apr 17, 4:41 PM CDTRiver Flood WarningEWXHays35 hr
Apr 17, 4:41 PM CDTRiver Flood WarningEWXCaldwell, Gonzales3 days
Apr 17, 4:41 PM CDTRiver Flood WarningEWXCaldwell, Gonzales46 hr
Apr 17, 4:45 PM CDTAreal Flood AdvisoryEWXBexar, Comal, Kendall3 hr
Apr 17, 4:45 PM CDTSevere Thunderstorm WarningEWXAtascosa, Frio45 min
Apr 17, 5:10 PM CDTSpecial Weather StatementEWXGillespie50 min
Apr 17, 5:13 PM CDTSevere Thunderstorm WarningEWXBandera, Kendall, Kerr22 min
Apr 17, 5:15 PM CDTAreal Flood AdvisoryEWXWilliamson3 hr
Apr 17, 5:26 PM CDTSpecial Weather StatementEWXFrio34 min
Apr 17, 5:27 PM CDTRiver Flood WarningEWXBexar34 hr
Apr 17, 5:27 PM CDTRiver Flood WarningEWXBexar58 hr
Apr 17, 5:27 PM CDTRiver Flood WarningEWXBexar36 hr
Apr 17, 5:27 PM CDTRiver Flood WarningEWXBexar, Guadalupe32 hr
Apr 17, 5:27 PM CDTRiver Flood WarningEWXBexar, Wilson59 hr
Apr 17, 5:27 PM CDTRiver Flood WarningEWXKarnes4 days
Apr 17, 5:45 PM CDTSevere Thunderstorm WarningEWXFrio30 min
Apr 17, 5:48 PM CDTSpecial Weather StatementEWXKendall27 min
Apr 17, 5:52 PM CDTFlash Flood WarningEWXWilliamson4 hr
Apr 17, 6:15 PM CDTSpecial Weather StatementEWXBandera30 min
Apr 17, 6:30 PM CDTSpecial Weather StatementEWXMedina30 min
Apr 17, 6:44 PM CDTSpecial Weather StatementEWXBandera31 min
Apr 17, 6:59 PM CDTSpecial Weather StatementEWXUvalde31 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.