Alert archive / Texas / Special Weather Statements in 2016

Special Weather Statement, NWS Austin/San Antonio, TX

May 19, 2016Guadalupe County, Texas

NWS Austin/San Antonio, TX issued this special weather statement at May 19, 2016, 8:41 AM CDT for Guadalupe County, Texas. It was in force for 49 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 19, 2016, 8:41 AM CDT (13:41 UTC)
Expired: May 19, 2016, 9:30 AM CDT
In force: 49 min
Issued by: NWS Austin/San Antonio, TX

County Guadalupe County, TX

The radar

The Austin/San Antonio radar (KEWX), 37 km from the middle of the area, began a volume at 13:43 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 12:00Z, 1.7 hours before the alert went out and 201 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2030 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 661 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 110 m²/s²
0-3 km storm-relative helicity: 291 m²/s²
Significant tornado parameter: 2.4
Supercell composite: 14.9

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 19, 8:12 AM CDT, 29 minutes earlier.

Area forecast discussion, May 19, 8:12 AM CDT, 29 minutes before

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
812 AM CDT THU MAY 19 2016

.UPDATE...
To issue Sever Thunderstorm Watch across our southern area. A
severe thunderstorm is moving to the east out of Dimmit County and
this storm is part of a line that currently extends into Frio
County. This line of storms will continue to the east this morning
and may produce large hail and damaging wind gusts. There is also
a smaller risk of tornadoes. This risk of severe thunderstorms
will continue into the afternoon.

&&

.PREV DISCUSSION... /ISSUED 636 AM CDT THU MAY 19 2016/

UPDATE...12Z aviation update below.

AVIATION...Widespread SHRAs and TSTMs will move across South-
Central Texas this morning, impacting DRT through 14Z and SAT/AUS
through through 16Z. Locally heavy rain, IFR ceilings and
visibility and wind gusts in excess of 25KT will be possible in
heavier storms. Trailing stratiform rain and embedded SHRAs will
be possible through roughly 18Z-20Z at SAT/AUS. IFR to MVFR
ceilings will persist through the afternoon. NE to E winds 5-10KT
likely to turn north 10-15KT behind the line of storms for a few
hours. IFR to LIFR ceilings develop tonight at SAT/AUS.

PREV DISCUSSION... /ISSUED 355 AM CDT THU MAY 19 2016/

.Locally Heavy Rainfall Possible Today...

SHORT TERM (Today through Friday)...
An upper level shortwave trough pushing across the four corners
region and into the Southern Plains will aid for locally heavy
rainfall development across South Central Texas this morning
through the evening hours. At the surface, a stationary frontal
boundary across the Coastal Plains is forecast to slightly push to
the north just south of Highway 90 and act as the focus for heavy
rainfall through the first forecast period. There is a marginal to
slight risk of severe thunderstorms across most of South Central
Texas Today with stronger storms capable of producing hail up to
one inch in diameter and thunderstorm wind gusts of 50 to 60 mph.
However, the main weather threat today is expected to be flash
flooding as one to three inches of rainfall are anticipated across
a large portion of South Central Texas. With the soil already
saturated from recent rains the past few days, one to three
inches of rainfall will definitely create widespread flash
flooding issues. A Flash Flood Watch is in effect through 10 PM
CDT tonight. Later this afternoon into the evening hours, weather
conditions are forecast to improve from west to east as the upper
level short wave opens and pushes into the Central
Plains/Mississippi Valley and the frontal boundary pushes back to
the Coastal Plains.

LONG TERM (Friday Night through Wednesday)...
A weak upper level ridging forms over the area on Friday into the
upcoming weekend. This will give the area a break with limited
precipitation mainly to the Rio Grande. Sunday evening, a cluster
of storms may affect the southern Edwards Plateau as they push
from the northwest into the area. Isolated to scattered showers
and isolated thunderstorms are in the extended forecast through
the middle of the week as several short wave disturbances in the
southwest flow move through the region.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              73  62  82  65  86 /  90  40  10  10  10
Austin Bergstrom Intl Airport  73  62  81  64  86 /  90  40  10  10  10
New Braunfels Muni Airport     74  63  82  66  86 /  90  40  10  10  20
Burnet Muni Airport            69  60  79  62  84 /  90  30  10  -   10
Del Rio Intl Airport           78  64  85  69  88 /  70  20  10  10  10
Georgetown Muni Airport        70  60  80  63  85 /  90  40  10  -   -
Hondo Muni Airport             76  63  84  66  87 /  90  30  10  10  20
San Marcos Muni Airport        73  63  82  65  86 /  90  40  10  10  20
La Grange - Fayette Regional   75  66  82  66  86 /  90  50  10  10  -
San Antonio Intl Airport       75  64  83  67  86 /  90  40  10  10  20
Stinson Muni Airport           76  66  84  68  87 /  90  40  10  10  20

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
Flash Flood Watch through this evening for the following counties:
Atascosa...Bandera...Bastrop...Bexar...Blanco...Burnet...Caldwell...
Comal...De Witt...Dimmit...Edwards...Fayette...Frio...Gillespie...
Gonzales...Guadalupe...Hays...Karnes...Kendall...Kerr...Kinney...
Lavaca...Lee...Llano...Maverick...Medina...Real...Travis...Uvalde...
Val Verde...Williamson...Wilson...Zavala.

&&

Mesoscale/Aviation...Hampshire/Allen
Synoptic/Grids...05/17
Public Service/Data Collection...30

Hazardous weather outlook, May 19, 4:15 AM CDT, 4 hours 26 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
415 AM CDT THU MAY 19 2016

TXZ171>173-183>194-202>209-217>225-228-200915-
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-
415 AM CDT THU MAY 19 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

.DAY ONE...TODAY AND TONIGHT.

A LINE OF STORMS PUSHING ACROSS THE RIO GRANDE AND EDWARDS PLATEAU
AREAS WILL CONTINUE TO PUSH TO THE EAST AND INTERACT WITH A
BOUNDARY PUSHING TO THE NORTH FROM THE COASTAL PLAINS. AN UPPER
LEVEL DISTURBANCE WILL BE PUSHING ACROSS THE SOUTHERN PLAINS INTO
THE CENTRAL PLAINS THROUGHOUT THE DAY AND HELP HEAVY RAINS TO
DEVELOP. THE SOILS ARE ALREADY SATURATED DUE TO RECENT HEAVY RAIN
EPISODES. ONE TO THREE INCHES OF RAINFALL ARE EXPECTED OVER MOST
PLACES TODAY. THE MAIN WEATHER HAZARD IS FLASH FLOODING. A FLASH
FLOOD WATCH IS IN EFFECT THROUGH 10 PM CDT TONIGHT.

AS THE FRONTAL BOUNDARY PUSHES BACK TO THE COASTAL PLAINS THIS
AFTERNOON AND EVENING...THERE IS A SLIGHT RISK OF SEVERE
THUNDERSTORMS ACROSS THE SOUTHERN COUNTIES AND COASTAL PLAINS AREA
WITH MAIN THREATS BEING LARGE HAIL OF ONE INCH IN DIAMETER AND
THUNDERSTORM WIND GUSTS OF 50 TO 60 MPH.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

NO HAZARD WEATHER EXPECTED FOR THE EXTENDED PERIOD AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT SEVERE WEATHER OR FLOODING
REPORTS TO THE NATIONAL WEATHER SERVICE.

In the hours before

Local storm report, May 19, 7:57 AM CDT, 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
757 AM CDT THU MAY 19 2016

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

0745 AM     FLASH FLOOD      KERRVILLE               30.04N  99.14W
05/19/2016                   KERR               TX   LAW ENFORCEMENT

            SEVERAL ROADS ARE CLOSED NEAR KERRVILLE ALONG GOAT AND
            CYPRESS CREEK.

&&

EVENT NUMBER EWX1600414

HAMPSHIRE

Local storm report, May 19, 8:05 AM CDT, 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
805 AM CDT THU MAY 19 2016

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

0750 AM     FLASH FLOOD      BOERNE                  29.80N  98.74W
05/19/2016                   KENDALL            TX   LAW ENFORCEMENT

            SEVERAL ROADS ARE CLOSED THROUGHOUT THE COUNTY

&&

EVENT NUMBER EWX1600415

HAMPSHIRE

Local storm report, May 19, 8:16 AM CDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
816 AM CDT THU MAY 19 2016

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

0700 AM     FLASH FLOOD      4 SW FREDERICKSBURG     30.23N  98.91W
05/19/2016                   GILLESPIE          TX   EMERGENCY MNGR

            ON HWY 16 NEAR THE GILLESPIE COUNTY AIRPORT HEAVY RAINS
            CAUSED THE HWY TO BE CLOSED FOR A SHORT PERIOD

&&

EVENT NUMBER EWX1600416

SBS

Local storm report, May 19, 8:21 AM CDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
821 AM CDT THU MAY 19 2016

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

0700 AM     FLASH FLOOD      LUCKENBACH              30.18N  98.76W
05/19/2016                   GILLESPIE          TX   EMERGENCY MNGR

            LOW WATER CROSSING ALONG 1376 IN THE VICINITY OF
            LUCHENBACH HAD WATER FLOWING OVER THE ROADWAYS

&&

EVENT NUMBER EWX1600417

SBS

Local storm report, May 19, 8:23 AM CDT, 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
823 AM CDT THU MAY 19 2016

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

0815 AM     FLASH FLOOD      BANDERA                 29.72N  99.07W
05/19/2016                   BANDERA            TX   EMERGENCY MNGR

            MULTIPLE ROAD CLOSURES ACROSS THE COUNTY DUE TO HEAVY
            RAINS... INCLUDING THE TOWNS OF BANDERA... MEDINA AND
            PIPE CREEK

&&

EVENT NUMBER EWX1600418

SBS

Special weather statement, May 19, 8:41 AM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
841 AM CDT THU MAY 19 2016

TXZ207-223-191430-
GUADALUPE TX-GONZALES TX-
841 AM CDT THU MAY 19 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN GONZALES AND
SOUTHEASTERN GUADALUPE COUNTIES UNTIL 930 AM CDT...

AT 841 AM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 11
MILES SOUTH OF SEGUIN...MOVING NORTHEAST AT 35 MPH.

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

LOCATIONS IMPACTED INCLUDE...
LULING...PALMETO...BEBE...BELMONT...OAK FOREST...LEESVILLE...MONTHALIA AND
OTTINE.

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.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 300 PM CDT FOR
SOUTH CENTRAL TEXAS.

LAT...LON 2939 9757 2934 9785 2935 9786 2938 9784
      2938 9802 2947 9804 2967 9768 2967 9765
      2964 9763 2964 9760 2963 9759 2968 9751
TIME...MOT...LOC 1341Z 241DEG 31KT 2942 9791

ALLEN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 19, 2:23 AM CDT	River Flood Warning	EWX	Karnes	3 days
May 19, 2:39 AM CDT	Special Weather Statement	EWX	Val Verde	51 min
May 19, 3:06 AM CDT	Special Weather Statement	EWX	Val Verde	39 min
May 19, 3:44 AM CDT	Severe Thunderstorm Warning	EWX	Val Verde	31 min
May 19, 5:08 AM CDT	Flash Flood Warning	EWX	Edwards, Kerr, Real	3 hr
May 19, 5:14 AM CDT	Severe Thunderstorm Warning	EWX	Dimmit	31 min
May 19, 5:48 AM CDT	Flash Flood Warning	EWX	Bandera, Kerr	5 hr
May 19, 6:33 AM CDT	Flash Flood Warning	EWX	Gillespie, Kendall	5 hr
May 19, 6:39 AM CDT	Special Weather Statement	EWX	Dimmit	51 min
May 19, 6:47 AM CDT	Severe Thunderstorm Warning	EWX	Dimmit	43 min
May 19, 7:24 AM CDT	Severe Thunderstorm Warning	EWX	Dimmit	51 min
May 19, 7:31 AM CDT	Areal Flood Advisory	EWX	Bexar, Comal, Hays, Travis, Williamson	3 hr
May 19, 8:56 AM CDT	River Flood Warning	EWX	Kerr	27 hr
May 19, 9:21 AM CDT	Areal Flood Advisory	EWX	Guadalupe	3 hr
May 19, 10:13 AM CDT	Flash Flood Warning	EWX	Hays	3 hr
May 19, 10:54 AM CDT	Areal Flood Advisory	EWX	Bexar, Comal, Hays, Travis, Williamson	3 hr
May 19, 10:59 AM CDT	Areal Flood Advisory	EWX	Bastrop, Caldwell, Lee	3 hr
May 19, 11:03 AM CDT	Areal Flood Advisory	EWX	Gonzales, Wilson	3 hr
May 19, 11:18 AM CDT	Flash Flood Warning	EWX	Williamson	3 hr
May 19, 11:38 AM CDT	Flash Flood Warning	EWX	Bastrop, Caldwell, Guadalupe	3 hr
May 19, 11:41 AM CDT	Special Weather Statement	EWX	Lavaca	49 min
May 19, 2:06 PM CDT	River Flood Warning	EWX	Travis	18 hr
May 19, 2:12 PM CDT	Areal Flood Advisory	EWX	Comal, Hays, Travis, Williamson	3 hr
May 19, 2:47 PM CDT	Areal Flood Advisory	EWX	Bastrop, Caldwell, Guadalupe	3 hr
May 19, 3:38 PM CDT	River Flood Warning	EWX	DeWitt	4 days

Nearby

Special Weather Statements in Texas, 2016 Every 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.