Alert archive / Texas / Flash Flood Warnings in 2014

Flash Flood Warning 7, NWS Austin/San Antonio, TX

May 12, 20145 counties in Texas

NWS Austin/San Antonio, TX issued this flash flood warning at May 12, 2014, 11:53 PM CDT for 5 counties in Texas. It was in force for 3 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 12, 2014, 11:53 PM CDT (04:53 UTC)
Expired: May 13, 2014, 2:45 AM CDT
In force: 3 hr
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Flood severity: None

Counties Bastrop County, TX, Caldwell County, TX, Comal County, TX, Guadalupe County, TX, Hays County, TX

The radar

The Austin/San Antonio radar (KEWX), 24 km from the middle of the area, began a volume at 04:55 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.

What was reported inside it

Time	Report	Where	Remark
May 13, 1:09 AM CDT	FLASH FLOOD	New Braunfels, TX	8 ROADS WITHIN NEW BRAUNFELS CITY LIMITS HAVE BEEN CLOSED AND BARRICADED DUE TO FLOODING

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 4.9 hours before the alert went out and 242 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: 2559 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 547 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 43 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

698 
WGUS54 KEWX 130453
FFWEWX
TXC021-055-091-187-209-130745-
/O.NEW.KEWX.FF.W.0007.140513T0453Z-140513T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1153 PM CDT MON MAY 12 2014

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WEST CENTRAL BASTROP COUNTY...
  CALDWELL COUNTY...
  SOUTHEASTERN COMAL COUNTY...
  GUADALUPE COUNTY...
  SOUTHEASTERN HAYS COUNTY...
  THIS INCLUDES THE CITIES OF LOCKHART...NEW BRAUNFELS AND 
  SEGUIN...

* UNTIL 245 AM CDT

* AT 1146 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS PRODUCING VERY HEAVY RAINS AND FLASH FLOODING FROM
  CANYON LAKE TO NEW BRAUNFELS TO SEGUIN NORTHEAST TO BASTROP AND 
  ELGIN. DOPPLER RADAR ESTIMATES OF 1 TO 4 INCHES OF RAIN.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ZORN...
  STAPLES...NEW BERLIN...MCQUEENEY...MARION...KINGSBURY...GERONIMO...
  CIBOLO...NIEDERWALD...MARTINDALE...FENTRESS...UHLAND...WYLDWOOD AND
  CEDAR CREEK

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

&&

LAT...LON 2987 9807 2981 9799 3004 9773 3001 9771
      3019 9749 2995 9737 2940 9802 2960 9830

$$

2 follow-up statements

993 
WGUS74 KEWX 130632
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
132 AM CDT TUE MAY 13 2014

TXC021-055-091-187-209-130745-
/O.CON.KEWX.FF.W.0007.000000T0000Z-140513T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GUADALUPE TX-HAYS TX-CALDWELL TX-BASTROP TX-COMAL TX-
132 AM CDT TUE MAY 13 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 245 AM CDT FOR
SOUTHEASTERN COMAL...WEST CENTRAL BASTROP...CALDWELL...SOUTHEASTERN
HAYS AND GUADALUPE COUNTIES...

AT 129 AM CDT...NATIONAL WEATHER SERVICE RADARS SHOWED MAINLY LIGHT 
RAIN ACROSS THE AREA. ADDITIONAL RAINFALL UP TO ONE QUARTER INCH CAN 
BE EXPECTED. SOME FLASH FLOODING CAN STILL BE EXPECTED DUE TO 
EARLIER VERY HEAVY RAINS. RAIN GAGE OBSERVATIONS SHOWED 2.91 INCHES 
AT NASH CREEK ROAD AT DARST CREEK. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NIEDERWALD...
LOCKHART...UHLAND...WYLDWOOD AND CEDAR CREEK

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 2987 9807 2981 9799 3004 9773 3001 9771
      3019 9749 2995 9737 2940 9802 2960 9830

$$

770 
WGUS74 KEWX 130749
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
249 AM CDT TUE MAY 13 2014

TXC021-055-091-187-209-130758-
/O.EXP.KEWX.FF.W.0007.000000T0000Z-140513T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GUADALUPE TX-HAYS TX-CALDWELL TX-BASTROP TX-COMAL TX-
249 AM CDT TUE MAY 13 2014

...THE FLASH FLOOD WARNING HAS EXPIRED FOR SOUTHEASTERN COMAL...WEST
CENTRAL BASTROP...CALDWELL...SOUTHEASTERN HAYS AND GUADALUPE
COUNTIES...

NATIONAL WEATHER SERVICE RADAR SHOWED ONLY LIGHT TO MODERATE RAINS 
ACROSS THE AREA. NO ADDITIONAL FLASH FLOODING IS EXPECTED AND THE 
WARNING WAS ALLOWED TO EXPIRE. HOWEVER...SOME STREAMS WILL STILL RUN 
HIGH FOR THE NEXT FEW HOURS DUE TO EARLIER VERY HEAVY RAINS.

LAT...LON 2987 9807 2981 9799 3004 9773 3001 9771
      3019 9749 2995 9737 2940 9802 2960 9830

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 12, 7:25 PM CDT	Severe Thunderstorm Warning	EWX	Gillespie, Kerr	35 min
May 12, 8:09 PM CDT	Special Weather Statement	EWX	Kerr	51 min
May 12, 9:01 PM CDT	Areal Flood Advisory	EWX	Travis, Williamson	3 hr
May 12, 9:50 PM CDT	Special Weather Statement	EWX	Kendall	40 min
May 12, 10:09 PM CDT	Flash Flood Warning	EWX	Blanco, Comal, Hays	3 hr
May 12, 10:17 PM CDT	Flash Flood Warning	EWX	Travis	3 hr
May 12, 10:17 PM CDT	Special Weather Statement	EWX	Maverick	43 min
May 12, 10:36 PM CDT	Areal Flood Advisory	EWX	Bexar	114 min
May 12, 10:47 PM CDT	Areal Flood Advisory	EWX	Bastrop, Lee, Travis, Williamson	103 min
May 12, 10:52 PM CDT	Special Weather Statement	EWX	Bexar	23 min
May 12, 11:10 PM CDT	Flash Flood Warning	EWX	Travis	2 hr
May 12, 11:13 PM CDT	Special Weather Statement	EWX	Guadalupe, Wilson	32 min
May 12, 11:18 PM CDT	Flash Flood Warning	EWX	Hays, Travis	3 hr
May 12, 11:21 PM CDT	Areal Flood Advisory	EWX	Bexar, Comal, Guadalupe, Wilson	2 hr
May 12, 11:26 PM CDT	Areal Flood Advisory	EWX	Atascosa, Frio, Kinney, Maverick, Medina, Uvalde and 1 more	2 hr
May 12, 11:30 PM CDT	Areal Flood Advisory	EWX	Bastrop, Fayette, Lee	2 hr
May 12, 11:38 PM CDT	Areal Flood Advisory	EWX	Caldwell, Comal, Guadalupe	112 min
May 12, 11:40 PM CDT	Flash Flood Warning	EWX	Bexar	2 hr
May 12, 11:42 PM CDT	Special Weather Statement	EWX	Caldwell	48 min
May 13, 12:05 AM CDT	Areal Flood Advisory	EWX	Bastrop, Caldwell, Fayette	115 min
May 13, 12:11 AM CDT	Special Weather Statement	EWX	Karnes	49 min
May 13, 12:12 AM CDT	Special Weather Statement	EWX	Wilson	48 min
May 13, 12:14 AM CDT	Special Weather Statement	EWX	Caldwell	46 min
May 13, 12:26 AM CDT	Special Weather Statement	EWX	Frio	49 min
May 13, 12:37 AM CDT	Flash Flood Warning	EWX	Bastrop, Fayette, Gonzales, Lee	113 min
May 13, 12:41 AM CDT	Special Weather Statement	EWX	DeWitt, Gonzales	64 min
May 13, 12:48 AM CDT	Areal Flood Advisory	EWX	Karnes, Wilson	2 hr
May 13, 12:56 AM CDT	Areal Flood Advisory	EWX	Caldwell, Gonzales, Guadalupe	2 hr
May 13, 1:08 AM CDT	Flash Flood Warning	EWX	Atascosa, Bexar, Wilson	3 hr
May 13, 1:15 AM CDT	Special Weather Statement	EWX	DeWitt, Lavaca	60 min
May 13, 1:39 AM CDT	Areal Flood Advisory	EWX	DeWitt, Gonzales, Lavaca	3 hr
May 13, 1:54 AM CDT	Areal Flood Advisory	EWX	Bexar	2 hr
May 13, 2:09 AM CDT	Special Weather Statement	EWX	Lavaca	51 min
May 13, 8:50 AM CDT	River Flood Warning	EWX	Bexar	6 hr
May 13, 8:50 AM CDT	River Flood Warning	EWX	Bexar	6 hr
May 13, 8:50 AM CDT	River Flood Warning	EWX	Bexar, Wilson	13 hr

Nearby

Flash Flood Warnings in Texas, 2014 Every flash flood warning in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.