Alert archive / Texas / Flash Flood Warnings in 2015
Flash Flood Warning 4, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Apr 24, 2015, 5:02 AM CDT for Bexar County, 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
- Apr 24, 2015, 5:02 AM CDT (10:02 UTC)
- Expired
- Apr 24, 2015, 8:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Flood severity
- None
County Bexar County, TX
The radar
The Austin/San Antonio radar (KEWX), 51 km from the middle of the area, began a volume at 10:04 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 |
|---|---|---|---|
| Apr 24, 7:30 AM CDT | FLASH FLOOD | 2 Ne Lackland Afb, TX | WATER OVER THE LOW WATER CROSSING AT SOUTH CALLAGHAN ROAD AND HWY 90. REPORT GATHERED VIA TWITTER. |
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, 10.0 hours before the alert went out and 222 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.
- Mixed-layer CAPE
- 2577 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 628 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- 7 m²/s²
- Significant tornado parameter
- -0.1
- Supercell composite
- -0.5
The text
As transmitted, in the capitals the NWS used until 2016.
758
WGUS54 KEWX 241002
FFWEWX
TXC029-241300-
/O.NEW.KEWX.FF.W.0004.150424T1002Z-150424T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
502 AM CDT FRI APR 24 2015
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
BEXAR COUNTY IN SOUTH CENTRAL TEXAS...
* UNTIL 800 AM CDT
* AT 500 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN FROM SOUTHERN TO NORTHEASTERN BEXAR COUNTY. UP TO ONE
INCH OF RAIN HAS ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO
BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
SAN ANTONIO...UNIVERSAL CITY...SCHERTZ...LIVE OAK...LEON VALLEY...
KIRBY...HELOTES...ALAMO HEIGHTS...SELMA...WINDCREST...TERRELL
HILLS...HOLLYWOOD PARK...SHAVANO PARK...LYTLE...OLMOS PARK...ST.
HEDWIG...SOMERSET...ELMENDORF...CHINA GROVE AND CALAVERAS LAKE.
ADDITIONAL RAINFALL AMOUNTS OF 1 TO 4 INCHES ARE POSSIBLE IN THE
WARNED AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
DO NOT ENTER OR CROSS FLOWING WATER OR WATER OF UNKNOWN DEPTH.
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 2925 9880 2968 9880 2970 9843 2959 9831
2956 9830 2954 9825 2945 9815 2912 9841
$$
CP2 follow-up statements
153
WGUS74 KEWX 241057
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
557 AM CDT FRI APR 24 2015
TXC029-241300-
/O.CON.KEWX.FF.W.0004.000000T0000Z-150424T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BEXAR TX-
557 AM CDT FRI APR 24 2015
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 AM CDT FOR
BEXAR COUNTY...
AT 554 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. AN ESTIMATE 3.5 INCHES OF RAIN
HAS ALREADY HAVE FALLEN ACROSS SOUTHWESTERN BEXAR COUNTY WITH UP TO
2.5 INCHES IN NORTHEASTERN BEXAR COUNTY. SAN ANTONIO INTERNATIONAL
AIRPORT HAS RECORDED 2.2 INCHES. FLASH FLOODING WILL CONTINUE.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
SAN ANTONIO...UNIVERSAL CITY...SCHERTZ...LIVE OAK...LEON VALLEY...
KIRBY...HELOTES...ALAMO HEIGHTS...SELMA...WINDCREST...TERRELL
HILLS...HOLLYWOOD PARK...SHAVANO PARK...LYTLE...OLMOS PARK...ST.
HEDWIG...SOMERSET...ELMENDORF...CHINA GROVE AND CALAVERAS LAKE.
ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE
WARNED AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
DO NOT ENTER OR CROSS FLOWING WATER OR WATER OF UNKNOWN DEPTH.
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 2925 9880 2968 9880 2970 9843 2959 9831
2956 9830 2954 9825 2945 9815 2912 9841
$$
CP194
WGUS74 KEWX 241152
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
652 AM CDT FRI APR 24 2015
TXC029-241300-
/O.CON.KEWX.FF.W.0004.000000T0000Z-150424T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BEXAR TX-
652 AM CDT FRI APR 24 2015
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 AM CDT FOR
BEXAR COUNTY...
AT 643 AM CDT...DOPPLER RADAR INDICATED THE RAINS WERE ENDING ACROSS
BEXAR COUNTY. RADAR ESTIMATES SHOW 1 TO 4 INCHES OF RAIN HAVE FALLEN
ACROSS SOUTHWESTERN TO NORTHEASTERN BEXAR COUNTY. THE SAN ANTONIO
INTERNATIONAL AIRPORT HAS RECORED 2.37 INCHES. FLASH FLOODING WILL
CONTINUE AND WILL IMPACT OLMOS CREEK...LEON CREEK...SALADO
CREEK...SAN ANTONIO RIVER...AND ZARZAMORA CREEK.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
SAN ANTONIO...UNIVERSAL CITY...SCHERTZ...LIVE OAK...LEON VALLEY...
KIRBY...HELOTES...ALAMO HEIGHTS...SELMA...WINDCREST...TERRELL
HILLS...HOLLYWOOD PARK...SHAVANO PARK...LYTLE...OLMOS PARK...ST.
HEDWIG...SOMERSET...ELMENDORF...CHINA GROVE AND CALAVERAS LAKE.
LITTLE OR NO ADDITIONAL RAINFALL IS EXPECTED FOR THE NEXT COUPLE
OF HOURS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
DO NOT ENTER OR CROSS FLOWING WATER OR WATER OF UNKNOWN DEPTH.
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 2925 9880 2968 9880 2970 9843 2959 9831
2956 9830 2954 9825 2945 9815 2912 9841
$$
CPThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 23, 8:07 PM CDT | Special Weather Statement | EWX | Val Verde | 38 min |
| Apr 23, 9:05 PM CDT | Special Weather Statement | EWX | Val Verde | 25 min |
| Apr 23, 9:37 PM CDT | Special Weather Statement | EWX | Val Verde | 23 min |
| Apr 23, 11:03 PM CDT | Special Weather Statement | EWX | Val Verde | 42 min |
| Apr 23, 11:12 PM CDT | Special Weather Statement | EWX | Val Verde | 33 min |
| Apr 23, 11:53 PM CDT | Special Weather Statement | EWX | Val Verde | 52 min |
| Apr 24, 2:23 AM CDT | Severe Thunderstorm Warning | EWX | Dimmit, Maverick | 52 min |
| Apr 24, 3:27 AM CDT | Areal Flood Advisory | EWX | Dimmit, Zavala | 3 hr |
| Apr 24, 3:50 AM CDT | Areal Flood Advisory | EWX | Real, Uvalde | 3 hr |
| Apr 24, 3:52 AM CDT | Areal Flood Advisory | EWX | Frio | 3 hr |
| Apr 24, 4:35 AM CDT | Areal Flood Advisory | EWX | Bexar, Caldwell, Comal, Guadalupe, Hays, Wilson | 3 hr |
| Apr 24, 4:38 AM CDT | Severe Thunderstorm Warning | EWX | Edwards, Kinney, Val Verde | 52 min |
| Apr 24, 5:04 AM CDT | Areal Flood Advisory | EWX | Medina | 3 hr |
| Apr 24, 5:45 AM CDT | Areal Flood Advisory | EWX | Bastrop | 3 hr |
| Apr 24, 6:22 AM CDT | Areal Flood Advisory | EWX | Bandera, Kendall, Kerr | 113 min |
| Apr 24, 6:30 AM CDT | Flash Flood Warning | EWX | Bastrop, Caldwell | 3 hr |
| Apr 24, 6:41 AM CDT | Flash Flood Warning | EWX | Lee | 3 hr |
| Apr 24, 6:48 AM CDT | River Flood Warning | EWX | Bexar | 7 hr |
| Apr 24, 8:26 AM CDT | Areal Flood Advisory | EWX | Bexar | 109 min |
| Apr 24, 9:36 AM CDT | Areal Flood Advisory | EWX | Bastrop, Caldwell | 114 min |
| Apr 24, 10:42 AM CDT | River Flood Warning | EWX | Caldwell, Gonzales | 23 hr |
| Apr 24, 2:15 PM CDT | Flash Flood Watch | EWX | Atascosa, Bastrop, Bexar, Caldwell, DeWitt, Fayette and 8 more | 12 hr |
| Apr 24, 5:16 PM CDT | Special Weather Statement | EWX | Maverick | 44 min |
| Apr 24, 5:49 PM CDT | Special Weather Statement | EWX | Kinney | 56 min |
| Apr 24, 6:15 PM CDT | Special Weather Statement | EWX | Kinney | 45 min |
| Apr 24, 6:18 PM CDT | Special Weather Statement | EWX | Kinney | 42 min |
| Apr 24, 6:22 PM CDT | Severe Thunderstorm Warning | EWX | Kinney, Uvalde | 38 min |
| Apr 24, 6:37 PM CDT | Severe Thunderstorm Warning | EWX | Maverick | 23 min |
| Apr 24, 6:55 PM CDT | Special Weather Statement | EWX | Dimmit | 50 min |
Nearby
Flash Flood Warnings in Texas, 2015Every 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.