Alert archive / Texas / Special Weather Statements in 2019

Special Weather Statement, NWS Austin/San Antonio, TX

April 24, 2019Bandera County, Medina County, Texas

NWS Austin/San Antonio, TX issued this special weather statement at Apr 24, 2019, 1:13 PM CDT for Bandera County, Medina 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
Apr 24, 2019, 1:13 PM CDT (18:13 UTC)
Expired
Apr 24, 2019, 2:00 PM CDT
In force
47 min
Issued by
NWS Austin/San Antonio, TX

Counties Bandera County, TX, Medina County, TX

The radar

The Laughlin AFB radar (KDFX), 84 km from the middle of the area, began a volume at 18:17 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, 6.2 hours before the alert went out and 135 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 2019-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 541 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 2019-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 254 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
541 J/kg
Mixed-layer CIN
-79 J/kg
Mixed-layer LCL
760 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
254 m²/s²
0-3 km storm-relative helicity
303 m²/s²
Significant tornado parameter
0.9
Supercell composite
6.2

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 24, 12:27 PM CDT, 46 minutes earlier.

Area forecast discussion, Apr 24, 12:27 PM CDT, 46 minutes before
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Hazardous weather outlook, Apr 24, 4:30 AM CDT, 8 hours 43 minutes before
Hazardous Weather Outlook
National Weather Service Austin/San Antonio TX
430 AM CDT Wed Apr 24 2019

TXZ171>173-183>194-202>209-217>225-228-250930-
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-
430 AM CDT Wed Apr 24 2019

This Hazardous Weather Outlook is for South-Central Texas..

.DAY ONE...Today And Tonight.

Numerous to widespread showers and thunderstorms are expected
today and tonight across much of the area. Some of these storms
could produce locally heavy rainfall as well as become severe.

A Flash Flood Watch is in effect for portions of the eastern Hill
Country and Austin metro area, where between 1 and 3 inches of
rainfall are forecast and isolated higher amounts up to 5 inches.
These isolated higher amounts of rainfall may produce localized
flash flooding. Particular areas of concern are smaller creeks and
streams that respond faster to heavy rain and low-water crossings.
Outside of the watch area, generally 1/2 to 2 inches of rainfall
is forecast.

There is also a slight risk some storms could become severe, with
damaging wind gusts and hail the primary threat. Isolated
tornadoes can not be ruled out. The greatest threat for severe
storms will occur in the morning and afternoon across the Rio
Grande and Hill Country, this afternoon and evening across the
I-35 corridor, and this evening and overnight across the Coastal
Prairies.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter are encourage to submit rainfall and severe weather
reports.

In the hours before

Special weather statement, Apr 24, 12:11 PM CDT, 1 hour 2 minutes before
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Special weather statement, Apr 24, 12:16 PM CDT, 57 minutes before
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Special weather statement, Apr 24, 12:24 PM CDT, 49 minutes before
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Special weather statement, Apr 24, 12:54 PM CDT, 19 minutes before
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Special weather statement, Apr 24, 12:58 PM CDT, 15 minutes before
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Special weather statement, Apr 24, 1:13 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Austin/San Antonio TX
113 PM CDT Wed Apr 24 2019

TXZ186-187-203-204-241900-
Uvalde TX-Kerr TX-Medina TX-Bandera TX-
113 PM CDT Wed Apr 24 2019

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL MEDINA...BANDERA...
SOUTHEASTERN KERR AND EASTERN UVALDE COUNTIES UNTIL 200 PM CDT...

At 113 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Vanderpool to near Knippa. Movement was
northeast at 40 mph.

Half inch hail will be possible with these storms.

Locations impacted include...
Medina, Uvalde, Hondo, Castroville, Bandera, Vanderpool, Tarpley,
Sabinal, Knippa, Lakehills, D'Hanis, Bandera Falls, New Fountain,
Quihi, Dunlay, Mico, Pipe Creek, Utopia, Hill Country State Natural
Area and Rio Medina.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

A Severe Thunderstorm Watch remains in effect until 700 PM CDT for
south central Texas.

LAT...LON 2919 9977 2963 9965 2963 9960 2978 9960
      2988 9892 2929 9886
TIME...MOT...LOC 1813Z 213DEG 36KT 2978 9947 2927 9963

HUFFMAN

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 24, 2:11 AM CDTSpecial Weather StatementEWXVal Verde34 min
Apr 24, 5:48 AM CDTSpecial Weather StatementEWXReal27 min
Apr 24, 7:10 AM CDTSpecial Weather StatementEWXReal35 min
Apr 24, 7:28 AM CDTSpecial Weather StatementEWXGillespie32 min
Apr 24, 8:53 AM CDTSpecial Weather StatementEWXBlanco52 min
Apr 24, 8:59 AM CDTSpecial Weather StatementEWXGuadalupe, Wilson46 min
Apr 24, 9:20 AM CDTSpecial Weather StatementEWXKinney40 min
Apr 24, 9:41 AM CDTSpecial Weather StatementEWXGonzales, Guadalupe49 min
Apr 24, 10:10 AM CDTSevere Thunderstorm WarningEWXBastrop, Caldwell, Fayette, Gonzales, Lavaca65 min
Apr 24, 10:21 AM CDTAreal Flood AdvisoryEWXGonzales3 hr
Apr 24, 10:50 AM CDTSpecial Weather StatementEWXKerr40 min
Apr 24, 10:59 AM CDTSevere Thunderstorm WarningEWXBandera, Gillespie, Kendall, Kerr61 min
Apr 24, 11:15 AM CDTSpecial Weather StatementEWXFayette45 min
Apr 24, 11:20 AM CDTSpecial Weather StatementEWXBandera40 min
Apr 24, 11:29 AM CDTSpecial Weather StatementEWXEdwards, Kinney46 min
Apr 24, 11:34 AM CDTAreal Flood AdvisoryEWXKendall, Kerr3 hr
Apr 24, 11:39 AM CDTSpecial Weather StatementEWXKendall51 min
Apr 24, 11:48 AM CDTSpecial Weather StatementEWXLavaca42 min
Apr 24, 11:53 AM CDTSpecial Weather StatementEWXBlanco52 min
Apr 24, 12:03 PM CDTAreal Flood AdvisoryEWXFayette, Lavaca117 min
Apr 24, 12:04 PM CDTSpecial Weather StatementEWXFayette41 min
Apr 24, 12:11 PM CDTSpecial Weather StatementEWXComal49 min
Apr 24, 12:16 PM CDTSpecial Weather StatementEWXKendall44 min
Apr 24, 12:22 PM CDTAreal Flood AdvisoryEWXEdwards, Kerr, Real113 min
Apr 24, 12:24 PM CDTSpecial Weather StatementEWXFayette66 min
Apr 24, 12:54 PM CDTSpecial Weather StatementEWXKerr66 min
Apr 24, 12:58 PM CDTSpecial Weather StatementEWXFayette17 min
Apr 24, 1:48 PM CDTSpecial Weather StatementEWXGillespie42 min
Apr 24, 2:20 PM CDTSpecial Weather StatementEWXBurnet40 min
Apr 24, 2:44 PM CDTAreal Flood AdvisoryEWXBlanco, Kendall2 hr
Apr 24, 2:50 PM CDTAreal Flood AdvisoryEWXHays, Travis, Williamson3 hr
Apr 24, 2:58 PM CDTSpecial Weather StatementEWXWilliamson47 min
Apr 24, 3:08 PM CDTSevere Thunderstorm WarningEWXTravis, Williamson39 min
Apr 24, 3:47 PM CDTSpecial Weather StatementEWXWilliamson43 min
Apr 24, 5:12 PM CDTSpecial Weather StatementEWXDeWitt, Karnes63 min
Apr 24, 5:30 PM CDTSevere Thunderstorm WarningEWXDeWitt, Gonzales, Karnes, Lavaca60 min
Apr 24, 6:25 PM CDTSevere Thunderstorm WarningEWXDeWitt, Lavaca35 min

Nearby

Special Weather Statements in Texas, 2019Every special weather statement in 2019

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.