Alert archive / Texas / Special Weather Statements in 2019

Special Weather Statement, NWS Austin/San Antonio, TX

May 30, 2019Comal County, Texas

NWS Austin/San Antonio, TX issued this special weather statement at May 30, 2019, 2:21 AM CDT for Comal County, Texas. It was in force for 39 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
May 30, 2019, 2:21 AM CDT (07:21 UTC)
Expired
May 30, 2019, 3:00 AM CDT
In force
39 min
Issued by
NWS Austin/San Antonio, TX

County Comal County, TX

The radar

The Austin/San Antonio radar (KEWX), 47 km from the middle of the area, began a volume at 07:25 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, 7.4 hours before the alert went out and 266 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 2019-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1325 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 2019-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.19395878Sfc1 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
1325 J/kg
Mixed-layer CIN
-229 J/kg
Mixed-layer LCL
906 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
37 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

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 May 30, 12:19 AM CDT, 2 hours 2 minutes earlier.

Area forecast discussion, May 30, 12:19 AM CDT, 2 hours 2 minutes before
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Hazardous weather outlook, May 29, 4:25 AM CDT, 21 hours 56 minutes before
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In the hours before

Special weather statement, May 29, 11:09 PM CDT, 3 hours 12 minutes before
Special Weather Statement
National Weather Service Austin/San Antonio TX
1109 PM CDT Wed May 29 2019

TXZ188-190-300500-
Blanco TX-Gillespie TX-
1109 PM CDT Wed May 29 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN BLANCO AND
SOUTHEASTERN GILLESPIE COUNTIES UNTIL MIDNIGHT CDT...

At 1108 PM CDT, Doppler radar was tracking a strong thunderstorm near
Fredericksburg, moving east at 20 mph.

Nickel size hail will be possible with this storm.

Locations impacted include...
Fredericksburg, Stonewall, Rocky Creek, Hye, Blumenthal, Luckenbach,
Cain City, Sandy, Albert, Rocky Hill, LBJ State Park and LBJ National
Historical Park.

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
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3042 9846 3012 9845 3013 9858 3014 9859
      3016 9895 3030 9892
TIME...MOT...LOC 0408Z 276DEG 17KT 3022 9888
Special weather statement, May 30, 12:55 AM CDT, 1 hour 26 minutes before
Special Weather Statement
National Weather Service Austin/San Antonio TX
1255 AM CDT Thu May 30 2019

TXZ186-189-300630-
Kerr TX-Kendall TX-
1255 AM CDT Thu May 30 2019

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL KERR AND
NORTHWESTERN KENDALL COUNTIES UNTIL 130 AM CDT...

At 1254 AM CDT, Doppler radar was tracking a strong thunderstorm
near Comfort, moving east at 15 mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Comfort, Cypress Creek, Waring and Center Point.

LAT...LON 2996 9903 3006 9899 3005 9873 2985 9885
TIME...MOT...LOC 0554Z 290DEG 14KT 2999 9893

RUNYEN
Special weather statement, May 30, 2:21 AM CDT, 0 minutes before
Special Weather Statement
National Weather Service Austin/San Antonio TX
221 AM CDT Thu May 30 2019

TXZ189-206-300800-
Comal TX-Kendall TX-
221 AM CDT Thu May 30 2019

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN KENDALL AND
NORTHWESTERN COMAL COUNTIES UNTIL 300 AM CDT...

At 220 AM CDT, Doppler radar was tracking a strong thunderstorm near
Guadalupe River State Park, or 12 miles northeast of Boerne, moving
east at 20 mph.

Penny size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Guadalupe River State Park, Spring Branch, Bergheim, Anhalt and
Honey Creek State Natural Area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy rainfall is also occurring with this storm, and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

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.

&&

LAT...LON 2995 9842 2994 9841 2995 9840 2995 9833
      2974 9846 2984 9863 2996 9859
TIME...MOT...LOC 0720Z 290DEG 19KT 2989 9855

RUNYEN

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 11:09 PM CDTSpecial Weather StatementEWXGillespie51 min
May 30, 12:55 AM CDTSpecial Weather StatementEWXKendall35 min
May 30, 2:28 AM CDTSevere Thunderstorm WarningEWXComal, Kendall34 min
May 30, 4:03 AM CDTAreal Flood AdvisoryEWXTravis117 min
May 30, 4:27 AM CDTSpecial Weather StatementEWXBastrop33 min
May 30, 4:47 AM CDTAreal Flood AdvisoryEWXBastrop3 hr
May 30, 4:57 AM CDTSevere Thunderstorm WarningEWXBastrop34 min
May 30, 5:30 AM CDTSpecial Weather StatementEWXFayette60 min
May 30, 5:57 AM CDTSpecial Weather StatementEWXVal Verde33 min
May 30, 6:21 AM CDTSpecial Weather StatementEWXVal Verde54 min
May 30, 6:27 AM CDTSpecial Weather StatementEWXKinney63 min
May 30, 6:32 AM CDTSevere Thunderstorm WarningEWXVal Verde58 min
May 30, 6:38 AM CDTSevere Thunderstorm WarningEWXEdwards, Kinney, Val Verde67 min
May 30, 6:39 AM CDTAreal Flood AdvisoryEWXBastrop, Caldwell3 hr
May 30, 6:54 AM CDTFlash Flood WarningEWXBastrop, Caldwell3 hr
May 30, 7:22 AM CDTSpecial Weather StatementEWXVal Verde38 min
May 30, 7:28 AM CDTSpecial Weather StatementEWXEdwards47 min
May 30, 7:33 AM CDTSevere Thunderstorm WarningEWXVal Verde26 min
May 30, 7:43 AM CDTSpecial Weather StatementEWXEdwards47 min
May 30, 7:46 AM CDTSpecial Weather StatementEWXEdwards44 min
May 30, 8:09 AM CDTSevere Thunderstorm WarningEWXEdwards, Val Verde19 min
May 30, 8:27 AM CDTSpecial Weather StatementEWXEdwards48 min
May 30, 11:08 AM CDTSpecial Weather StatementEWXVal Verde37 min
May 30, 11:50 AM CDTSpecial Weather StatementEWXVal Verde40 min
May 30, 11:58 AM CDTSevere Thunderstorm WarningEWXVal Verde32 min
May 30, 12:32 PM CDTSpecial Weather StatementEWXTerrell43 min
May 30, 12:42 PM CDTSevere Thunderstorm WarningEWXVal Verde33 min
May 30, 1:14 PM CDTSpecial Weather StatementEWXVal Verde46 min
May 30, 4:36 PM CDTSevere Thunderstorm WarningEWXEdwards54 min
May 30, 4:59 PM CDTSevere Thunderstorm WarningEWXEdwards, Kerr44 min
May 30, 5:15 PM CDTSpecial Weather StatementEWXLlano45 min
May 30, 5:21 PM CDTSevere Thunderstorm WarningEWXKerr54 min
May 30, 5:34 PM CDTSevere Thunderstorm WarningEWXKerr, Real26 min
May 30, 5:56 PM CDTSevere Thunderstorm WarningEWXKerr49 min
May 30, 6:00 PM CDTSpecial Weather StatementEWXLlano45 min
May 30, 6:08 PM CDTSevere Thunderstorm WarningEWXBlanco, Gillespie, Llano67 min
May 30, 6:38 PM CDTAreal Flood AdvisoryEWXDeWitt, Lavaca3 hr
May 30, 6:40 PM CDTSpecial Weather StatementEWXKerr50 min
May 30, 6:42 PM CDTSpecial Weather StatementEWXLavaca18 min
May 30, 6:52 PM CDTSpecial Weather StatementEWXBlanco53 min
May 30, 6:55 PM CDTSevere Thunderstorm WarningEWXEdwards, Val Verde65 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.