Alert archive / Texas / Flash Flood Warnings in 2015

Flash Flood Warning 155, NWS Austin/San Antonio, TX

October 24, 2015Travis County, Williamson County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Oct 24, 2015, 4:23 AM CDT for Travis County, Williamson County, Texas. It was in force for 7 hr. 15 reports 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: Oct 24, 2015, 4:23 AM CDT (09:23 UTC)
Expired: Oct 24, 2015, 11:15 AM CDT
In force: 7 hr
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Flood severity: None

Counties Travis County, TX, Williamson County, TX

The radar

The Ft Hood radar (KGRK), 39 km from the middle of the area, began a volume at 09:24 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
Oct 24, 4:31 AM CDT	FLASH FLOOD	3 N Lost Creek, TX	FLOODING ON RIVER HILLS RD
Oct 24, 5:08 AM CDT	HEAVY RAIN 4.25	3 Nw Camp Mabry, TX	RAINFALL IN THE PAST HOUR
Oct 24, 5:11 AM CDT	HEAVY RAIN 3.68	2 Ene Mansfield Dam, TX	RAINFALL IN PAST HOUR
Oct 24, 5:19 AM CDT	HEAVY RAIN 5.67	5 E Mansfield Dam, TX	RAINFALL SINCE 3 AM
Oct 24, 5:23 AM CDT	HEAVY RAIN 2.79	3 Ssw Cedar Park, TX	2.79 INCHES OF RAIN FELL IN 30 MINUTES
Oct 24, 5:26 AM CDT	FLASH FLOOD	2 Sw Wells Branch, TX	MCNEIL DRIVE CLOSED DUE TO FLASH FLOODING
Oct 24, 5:30 AM CDT	HEAVY RAIN 6.55	3 Nw Camp Mabry, TX	RAINFALL SINCE MIDNIGHT
Oct 24, 5:41 AM CDT	FLASH FLOOD	3 Sw Wells Branch, TX	WATER CROSSINGS ON WATERS PARK RD....ONEAL LANE...AND ADELPHI LANE CLOSED DUE TO FLOODING
Oct 24, 5:44 AM CDT	FLASH FLOOD	4 N Camp Mabry, TX	SPICEWOOD SPRINGS RD FROM LOOP 360 TO OLD LAMPASAS CLOSED DUE TO FLOODING
Oct 24, 6:10 AM CDT	FLASH FLOOD	Cedar Park, TX	LOW WATER CROSSINGS CLOSED ON PEACH TREE LN... SUMAC LN... CYPRESS LN... AND CEDAR PARK
Oct 24, 6:17 AM CDT	HEAVY RAIN 4.52	2 Wsw Wells Branch, TX	RAINFALL IN PAST 2 HOURS
Oct 24, 6:42 AM CDT	FLASH FLOOD	3 Nnw Camp Mabry, TX	CORRECTION...3 FEET OF WATER OVER A SIDE ROAD NEAR THE INTERSECTION OF FM 2222 AND BULL CREEK.
Oct 24, 6:42 AM CDT	FLASH FLOOD	3 Nnw Camp Mabry, TX	ROAD CREWS REPORTING 3 FEET OF WATER OVER THE ROAD AT FM 2222 AND BULL CREEK.
Oct 24, 10:17 AM CDT	HEAVY RAIN 9.44	2 Sw Jollyville, TX	8.81 INCHES MEASURED SINCE MIDNIGHT 2 SW JOLLYVILLE FROM LCRA GAUGE...9.44 INCHES TOTAL.
Oct 24, 10:18 AM CDT	HEAVY RAIN 8.29	3 Ssw Cedar Park, TX	7.97 INCHES MEASURED SINCE MIDNIGHT 3 SSW CEDAR PARK FROM LCRA GAUGE...8.29 INCHES TOTAL

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, 9.4 hours before the alert went out and 314 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: 1561 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 700 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 19 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

555 
WGUS54 KEWX 240923
FFWEWX
TXC453-491-241315-
/O.NEW.KEWX.FF.W.0155.151024T0923Z-151024T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
423 AM CDT SAT OCT 24 2015

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WILLIAMSON COUNTY IN SOUTH CENTRAL TEXAS...
  TRAVIS COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 815 AM CDT
    
* AT 419 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS TRAINING
  OVER THE SAME AREAS OF TRAVIS AND WILLIAMSON COUNTIES AND
  PRODUCING VERY HEAVY RAINFALL. UP TO TWO INCHES OF RAIN HAVE
  ALREADY FALLEN OVER WESTERN PARTS OF THE AUSTIN METRO AREA. THE
  HEAVIEST RAINFALL RATES ARE EXPECTED TO SHIFT EAST OF THE AUSTIN
  METRO AREA BY 7 AM CDT...BUT NOT BEFORE SOME 3 TO 4 HOUR RAINFALL
  TOTALS REACH 4 TO 6 INCHES. FLASH FLOODING HAS LIKELY BEGUN OVER
  WESTERN PARTS OF AUSTIN AND IS EXPECTED TO BEGIN SHORTLY ACROSS
  MUCH OF THE METRO AREA.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  AUSTIN...ROUND ROCK...CEDAR PARK...GEORGETOWN...PFLUGERVILLE...
  TAYLOR...ELGIN...GRANGER...WINDEMERE...TANGLEWOOD FOREST...ANDERSON
  MILL...SERENADA...AUSTIN BERGSTROM INT AP...LEANDER...HUTTO...
  LAKEWAY...LAGO VISTA...MANOR...BEE CAVE AND WEST LAKE HILLS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3087 9762 3073 9727 3046 9716 3040 9733
      3042 9737 3020 9750 3002 9771 3035 9817
      3046 9810 3049 9810 3049 9812 3051 9811
      3079 9796 3091 9783

$$

MO

4 follow-up statements

646 
WGUS74 KEWX 241026
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
526 AM CDT SAT OCT 24 2015

TXC453-491-241315-
/O.CON.KEWX.FF.W.0155.000000T0000Z-151024T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WILLIAMSON TX-TRAVIS TX-
526 AM CDT SAT OCT 24 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 AM CDT FOR
WILLIAMSON AND TRAVIS COUNTIES...

AT 521 AM CDT...DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
THUNDERSTORMS PRODUCING HEAVY RAIN OVER MOST OF TRAVIS AND
WILLIAMSON COUNTIES. RAIN GAUGES INDICATED 3 TO 5 INCHES HAVE
ALREADY FALLEN. FLASH FLOODING WILL CONTINUE. ADDITIONAL RAINFALL
AMOUNTS OF 3 TO 5 INCHES ARE EXPECTED ACROSS TRAVIS AND
WILLIAMSON COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3087 9762 3073 9727 3046 9716 3040 9733
      3042 9737 3020 9750 3002 9771 3035 9817
      3046 9810 3049 9810 3049 9812 3051 9811
      3079 9796 3091 9783

$$

CP

557 
WGUS74 KEWX 241118
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
618 AM CDT SAT OCT 24 2015

TXC453-491-241315-
/O.CON.KEWX.FF.W.0155.000000T0000Z-151024T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WILLIAMSON TX-TRAVIS TX-
618 AM CDT SAT OCT 24 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 AM CDT FOR
WILLIAMSON AND TRAVIS COUNTIES...

AT 612 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAINS ALONG AND EAST OF I-35 WITH MODERATE RAINS ELSEWHERE.
RAIN GAUGE REPORTS SHOW UP TO 7.18 INCHES IN THE LAST 3 HOURS. MOST
AREAS HAVE RECEIVED OVER 2 INCHES OF RAIN IN THE LAST 3 HOURS.
DANGEROUS FLASH FLOODING WILL CONTINUE. REPORTS INDICATE THAT
NUMEROUS ROADS HAVE BEEN CLOSED. 

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 4 INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3087 9762 3073 9727 3046 9716 3040 9733
      3042 9737 3020 9750 3002 9771 3035 9817
      3046 9810 3049 9810 3049 9812 3051 9811
      3079 9796 3091 9783

$$

CP

287 
WGUS54 KEWX 241245
FFWEWX
TXC453-491-241615-
/O.EXT.KEWX.FF.W.0155.000000T0000Z-151024T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
745 AM CDT SAT OCT 24 2015

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  WILLIAMSON COUNTY IN SOUTH CENTRAL TEXAS...
  TRAVIS COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 1115 AM CDT
    
* AT 738 AM CDT...DOPPLER RADAR CONTINUED TO INDICATE MODERATE TO
  HEAVY SHOWERS OVER THE AFFECT AREA. EMERGENCY MANAGEMENT HAS
  REPORTED 3 FEET OF WATER ALONG A SIDE ROAD ALONG BULL CREEK. FLASH
  FLOODING ONGOING WITH NUMEROUS LOW WATER CROSSINGS CLOSED ACROSS
  TRAVIS AND WILLIAMSON COUNTIES.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE LIKELY IN THE
WARNED AREA OVER THE NEXT TWO TO THREE HOURS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3087 9762 3073 9727 3046 9716 3040 9733
      3042 9737 3020 9750 3002 9771 3035 9817
      3046 9810 3049 9810 3049 9812 3051 9811
      3079 9796 3091 9783

$$

ALLEN

678 
WGUS74 KEWX 241519
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1019 AM CDT SAT OCT 24 2015

TXC453-491-241615-
/O.CON.KEWX.FF.W.0155.000000T0000Z-151024T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WILLIAMSON TX-TRAVIS TX-
1019 AM CDT SAT OCT 24 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1115 AM CDT
SATURDAY FOR WILLIAMSON AND TRAVIS COUNTIES...

AT 1006 AM CDT...DOPPLER RADAR INDICATED LIGHT TO MODERATE RAINFALL
OVER TRAVIS AND WILLIAMSON COUNTIES. NUMEROUS LOW WATER CROSSING
REMAIN CLOSED AT THIS TIME PER ATX FLOODS AND EMERGENCY MANAGEMENT
REPORTS. LCRA RAIN GAUGE DATA ALONG WITH RADAR READINGS INDICATE
THAT 1 TO 3 INCHES HAVE FALLEN OVER THE PAST 2 HOURS. AN ADDITIONAL
ONE TO TWO INCHES WILL BE POSSIBLE THROUGH THE MID TO LATE MORNING
HOURS AS WATER SLOWLY RUNS OFF. 

LOW WATER CROSSINGS WILL REMAIN DANGEROUS THROUGH THE AFTERNOON AS
WATER SLOWLY RECEDES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3087 9762 3073 9727 3046 9716 3040 9733
      3042 9737 3020 9750 3002 9771 3035 9817
      3046 9810 3049 9810 3049 9812 3051 9811
      3079 9796 3091 9783

$$

ALLEN

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 23, 8:19 PM CDT	Areal Flood Advisory	EWX	Bexar, Comal, Guadalupe	116 min
Oct 23, 10:55 PM CDT	Areal Flood Advisory	EWX	Llano	3 hr
Oct 23, 11:45 PM CDT	Areal Flood Advisory	EWX	Burnet, Llano	3 hr
Oct 24, 12:28 AM CDT	Areal Flood Advisory	EWX	Val Verde	4 hr
Oct 24, 1:39 AM CDT	Flash Flood Warning	EWX	Edwards, Val Verde	4 hr
Oct 24, 1:47 AM CDT	Areal Flood Advisory	EWX	Atascosa, Bexar	3 hr
Oct 24, 1:50 AM CDT	Flash Flood Warning	EWX	Burnet, Llano	4 hr
Oct 24, 2:00 AM CDT	Areal Flood Advisory	EWX	Bandera, Blanco, Gillespie, Kendall, Kerr, Real	4 hr
Oct 24, 3:00 AM CDT	Flash Flood Warning	EWX	Bexar, Comal, Guadalupe, Kendall	4 hr
Oct 24, 3:06 AM CDT	Special Weather Statement	EWX	Val Verde	54 min
Oct 24, 3:21 AM CDT	Areal Flood Advisory	EWX	Williamson	114 min
Oct 24, 3:29 AM CDT	Flash Flood Warning	EWX	Bandera, Edwards, Kerr, Real	3 hr
Oct 24, 3:52 AM CDT	Areal Flood Advisory	EWX	Travis, Williamson	3 hr
Oct 24, 4:43 AM CDT	Areal Flood Advisory	EWX	Edwards, Kinney, Val Verde	3 hr
Oct 24, 4:50 AM CDT	Flash Flood Warning	EWX	Blanco, Comal, Gillespie, Hays, Kendall, Kerr	2 hr
Oct 24, 5:53 AM CDT	Flash Flood Warning	EWX	Bastrop, Lee	6 hr
Oct 24, 6:22 AM CDT	Flash Flood Warning	EWX	Edwards, Real, Uvalde	3 hr
Oct 24, 6:37 AM CDT	Special Weather Statement	EWX	Bastrop, Lee	53 min
Oct 24, 6:48 AM CDT	Flash Flood Warning	EWX	Bandera, Bexar, Blanco, Caldwell, Comal, Gillespie and 6 more	3 hr
Oct 24, 8:16 AM CDT	Flash Flood Warning	EWX	Caldwell, Fayette, Gonzales, Guadalupe	3 hr
Oct 24, 8:20 AM CDT	River Flood Warning	EWX	Val Verde	36 hr
Oct 24, 8:20 AM CDT	River Flood Warning	EWX	Val Verde	45 hr
Oct 24, 8:20 AM CDT	River Flood Warning	EWX	Val Verde	32 hr
Oct 24, 8:32 AM CDT	Areal Flood Advisory	EWX	Maverick	3 hr
Oct 24, 8:46 AM CDT	River Flood Warning	EWX	Blanco	25 hr
Oct 24, 9:16 AM CDT	Flash Flood Warning	EWX	Atascosa, Bexar, Frio, Karnes, Medina, Wilson	3 hr
Oct 24, 9:17 AM CDT	Flash Flood Warning	EWX	DeWitt, Lavaca	3 hr
Oct 24, 9:24 AM CDT	Areal Flood Advisory	EWX	Bandera, Edwards, Kerr, Real	3 hr
Oct 24, 9:42 AM CDT	Flash Flood Warning	EWX	Bexar, Caldwell, Comal, Guadalupe, Hays	2 hr
Oct 24, 9:55 AM CDT	Areal Flood Advisory	EWX	Blanco, Gillespie, Kendall, Kerr	3 hr
Oct 24, 9:59 AM CDT	River Flood Warning	EWX	Bexar, Wilson	45 hr
Oct 24, 10:04 AM CDT	River Flood Warning	EWX	Kerr	27 hr
Oct 24, 10:04 AM CDT	River Flood Warning	EWX	Comal, Gonzales, Guadalupe	19 hr
Oct 24, 10:04 AM CDT	River Flood Warning	EWX	Comal, Guadalupe	24 hr
Oct 24, 11:09 AM CDT	Areal Flood Advisory	EWX	Travis, Williamson	6 hr
Oct 24, 11:36 AM CDT	Areal Flood Advisory	EWX	Bastrop, Lee	3 hr
Oct 24, 11:45 AM CDT	Areal Flood Advisory	EWX	Caldwell, Fayette, Gonzales, Guadalupe	3 hr
Oct 24, 11:57 AM CDT	Areal Flood Advisory	EWX	Bexar, Caldwell, Comal, Guadalupe, Hays, Wilson	3 hr
Oct 24, 12:12 PM CDT	Areal Flood Advisory	EWX	Atascosa, Bexar, Frio, Medina, Wilson	2 hr
Oct 24, 12:20 PM CDT	Areal Flood Advisory	EWX	Atascosa, DeWitt, Karnes, Lavaca	115 min
Oct 24, 2:17 PM CDT	Areal Flood Advisory	EWX	DeWitt, Karnes, Lavaca, Wilson	3 hr
Oct 24, 2:23 PM CDT	Areal Flood Advisory	EWX	Bastrop, Lee	3 hr
Oct 24, 2:30 PM CDT	Areal Flood Advisory	EWX	Bastrop, Lee	3 hr
Oct 24, 2:43 PM CDT	Areal Flood Advisory	EWX	Caldwell, Fayette, Gonzales, Guadalupe	3 hr
Oct 24, 4:00 PM CDT	Flash Flood Watch	EWX	Bastrop, Caldwell, DeWitt, Fayette, Gonzales, Guadalupe and 7 more	8 hr

Nearby

Flash Flood Warnings in Texas, 2015 Every flash flood warning in 2015

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.