Alert archive / Texas / Special Weather Statements in 2016

Special Weather Statement, NWS Austin/San Antonio, TX

April 1, 2016Guadalupe County, Texas

NWS Austin/San Antonio, TX issued this special weather statement at Apr 1, 2016, 6:27 AM CDT for Guadalupe County, Texas. It was in force for 33 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 1, 2016, 6:27 AM CDT (11:27 UTC)
Expired
Apr 1, 2016, 7:00 AM CDT
In force
33 min
Issued by
NWS Austin/San Antonio, TX

County Guadalupe County, TX

The radar

The Austin/San Antonio radar (KEWX), 33 km from the middle of the area, began a volume at 11:28 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, 11.5 hours before the alert went out and 198 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, Corpus Christi, TX at 00:00Z on 2016-04-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 364 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, Corpus Christi, TX at 00:00Z on 2016-04-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -85 square meters per square second.1939587897117136Sfc1 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
364 J/kg
Mixed-layer CIN
-146 J/kg
Mixed-layer LCL
2120 m above ground
0-6 km bulk shear
78 kt
0-1 km storm-relative helicity
-85 m²/s²
0-3 km storm-relative helicity
14 m²/s²
Significant tornado parameter
0.0
Supercell composite
-3.3

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 1, 3:43 AM CDT, 2 hours 44 minutes earlier.

Area forecast discussion, Apr 1, 3:43 AM CDT, 2 hours 44 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
343 AM CDT FRI APR 1 2016

.SHORT TERM (TODAY THROUGH SATURDAY)...
ONGOING CONVECTION ACROSS THE RIO GRANDE AND SOUTHERN EDWARDS
PLATEAU IS EXPECTED TO CONTINUE THROUGH LATE FRIDAY MORNING. A
SHORT-WAVE TROUGH EVIDENT ON WATER VAPOR CHANNEL OVER VAL VERDE
COUNTY IS CREATING SUFFICIENT LIFT AND INSTABILITY WITH MUCAPE
VALUES AROUND 1000 J/KG ACCORDING TO SPC MESOSCALE ANALYSIS PAGE
AND NAM/GFS AREA FORECAST SOUNDINGS. SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS WILL CONTINUE OVER THAT REGION WITH
ISOLATED STORMS POSSIBLY BECOMING STRONG TO SEVERE THROUGH LATE
FRIDAY MORNING. LARGE HAIL WILL BE THE MAIN WEATHER THREAT. A
SECOND AREA OF CONVECTION IS ONGOING ACROSS THE SOUTHWEST AND
SOUTH PARTS OF SOUTH CENTRAL TEXAS. THERE IS A SURFACE BOUNDARY
ASSOCIATED WITH A COLD FRONT AND SHOWERS AND STORMS ARE DEVELOPING
ALONG THAT CONVERGENCE ZONE. THIS ACTIVITY IS EXPECTED TO CONTINUE
THROUGH MID FRIDAY MORNING AS THE BOUNDARY SLOWLY PUSHES TO THE
SOUTHEAST. SOME OF THESE STORMS COULD BE STRONG AND PRODUCE
BRIEFLY HEAVY RAIN AND PEA SIZED HAIL.

MOST HIRES AND MEDIUM-RANGE MODELS ARE IN FAIR TO GOOD AGREEMENT
ON CHANCES FOR SHOWERS AND ISOLATED THUNDERSTORMS THIS AFTERNOON
AND PART OF THE EVENING ACROSS THE EASTERN HALF OF SOUTH CENTRAL
TEXAS. THE ABOVE MENTIONED SHORT-WAVE TROUGH SHOULD CONTINUE TO
PUSH TO THE SOUTHEAST THROUGHOUT THE DAY AND EXIT THE AREA
TONIGHT. BY LATE THIS EVENING...700 MB WINDS SHIFT TO THE
NORTHWEST AND SPREAD ACROSS THE AREA OVERNIGHT ENDING RAIN
CHANCES ACROSS THE REGION. COOL TEMPERATURES ARE EXPECTED
OVERNIGHT AS A COOLER AIRMASS FILTERS IN FROM THE NORTH WITH LOWS
IN THE UPPER 30S ACROSS THE HILL COUNTRY TO MID 40S ELSEWHERE.

&&

.LONG TERM (SATURDAY NIGHT THROUGH THURSDAY)...
DRY AND PLEASANT WEATHER DAYS ARE EXPECTED ON SATURDAY INTO THE
MIDDLE OF NEXT WEEK. A WARMING TREND IS IN STORE FROM SUNDAY
THROUGH MUCH OF NEXT WEEK. MEDIUM-RANGE MODELS ARE IN FAR
AGREEMENT ON THROUGH THE EXTEND FORECAST PERIOD AND THE NEXT COLD
FRONT. HOWEVER...THE GFS SOLUTION CREATES A BIT MORE OF
PRECIPITATION ACROSS THE FAR EASTERN COUNTIES THAN THE ECMWF. THIS
FAR OUT AND WITH ONLY SLIGHT RAIN CHANCES...OPTED TO GO WITH A DRY
WEATHER FORECAST FOR LATER IN THE EXTENDED PERIOD WHILE MONITOR
FUTURE RUNS FOR ANY SIGNIFICANT CHANGES.

&&

.PRELIMINARY POINT TEMPS/POPS...
AUSTIN CAMP MABRY              66  45  72  47  77 /  30  20   0   0   0
AUSTIN BERGSTROM INTL AIRPORT  67  42  72  41  76 /  30  20   0   0   0
NEW BRAUNFELS MUNI AIRPORT     69  44  72  43  77 /  30  10   0   0   0
BURNET MUNI AIRPORT            64  41  70  44  75 /  30  20   0   0   0
DEL RIO INTL AIRPORT           72  45  72  48  79 /  10  10   0   0   0
GEORGETOWN MUNI AIRPORT        64  41  71  42  76 /  40  20   0   0   0
HONDO MUNI AIRPORT             69  41  72  42  76 /  30  -    0   0   0
SAN MARCOS MUNI AIRPORT        66  44  71  43  75 /  30  10   0   0   0
LA GRANGE - FAYETTE REGIONAL   69  45  71  44  75 /  30  20   0   0   0
SAN ANTONIO INTL AIRPORT       68  45  72  45  76 /  30  10   0   0   0
STINSON MUNI AIRPORT           70  47  73  46  77 /  30  10   0   0   0

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

MESOSCALE/AVIATION...04
SYNOPTIC/GRIDS...17
Hazardous weather outlook, Apr 1, 4:35 AM CDT, 1 hour 52 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
435 AM CDT FRI APR 1 2016

TXZ171>173-183>194-202>209-217>225-228-021000-
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-
435 AM CDT FRI APR 1 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

.DAY ONE...TODAY AND TONIGHT.

ISOLATED STRONG TO SEVERE STORMS ARE POSSIBLE THIS MORNING.
LARGE HAIL IS THE MAIN THREAT.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

In the hours before

Local storm report, Apr 1, 5:56 AM CDT, 31 minutes before
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Special weather statement, Apr 1, 5:56 AM CDT, 31 minutes before
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Local storm report, Apr 1, 6:02 AM CDT, 25 minutes before
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Local storm report, Apr 1, 6:13 AM CDT, 14 minutes before
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Local storm report, Apr 1, 6:25 AM CDT, 2 minutes before
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Special weather statement, Apr 1, 6:27 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.

IssuedProductOfficeCountiesLasted
Apr 1, 1:34 AM CDTSpecial Weather StatementEWXKinney26 min
Apr 1, 1:40 AM CDTSpecial Weather StatementEWXReal35 min
Apr 1, 1:45 AM CDTSevere Thunderstorm WarningEWXEdwards, Kinney, Real, Uvalde60 min
Apr 1, 2:10 AM CDTSpecial Weather StatementEWXKerr35 min
Apr 1, 2:40 AM CDTSpecial Weather StatementEWXKimble20 min
Apr 1, 2:48 AM CDTSpecial Weather StatementEWXKinney27 min
Apr 1, 2:51 AM CDTSpecial Weather StatementEWXKerr, Real54 min
Apr 1, 2:58 AM CDTSpecial Weather StatementEWXGillespie32 min
Apr 1, 3:09 AM CDTSpecial Weather StatementEWXZavala36 min
Apr 1, 3:19 AM CDTSpecial Weather StatementEWXEdwards26 min
Apr 1, 3:20 AM CDTSpecial Weather StatementEWXKinney25 min
Apr 1, 3:29 AM CDTSevere Thunderstorm WarningEWXZavala48 min
Apr 1, 3:43 AM CDTSpecial Weather StatementEWXKinney, Uvalde47 min
Apr 1, 3:50 AM CDTSpecial Weather StatementEWXKendall40 min
Apr 1, 4:19 AM CDTSpecial Weather StatementEWXFrio41 min
Apr 1, 4:22 AM CDTSpecial Weather StatementEWXBandera, Kendall38 min
Apr 1, 4:28 AM CDTSpecial Weather StatementEWXReal, Uvalde47 min
Apr 1, 4:31 AM CDTSpecial Weather StatementEWXBlanco44 min
Apr 1, 5:02 AM CDTSpecial Weather StatementEWXAtascosa43 min
Apr 1, 5:13 AM CDTSevere Thunderstorm WarningEWXAtascosa, Bexar, Frio, Medina47 min
Apr 1, 5:23 AM CDTSpecial Weather StatementEWXWilliamson37 min
Apr 1, 5:55 AM CDTSpecial Weather StatementEWXWilson35 min
Apr 1, 5:56 AM CDTSpecial Weather StatementEWXWilliamson34 min
Apr 1, 7:31 AM CDTSpecial Weather StatementEWXKendall44 min
Apr 1, 8:11 AM CDTSpecial Weather StatementEWXComal49 min
Apr 1, 8:59 AM CDTSpecial Weather StatementEWXHays, Travis46 min
Apr 1, 9:47 AM CDTSpecial Weather StatementEWXBastrop, Lee43 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.