Alert archive / Texas / Flash Flood Warnings in 2016
Flash Flood Warning 78, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Aug 20, 2016, 4:10 PM CDT for Hays County, Travis County, Texas. It was in force for 3 hr. 3 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
- Aug 20, 2016, 4:10 PM CDT (21:10 UTC)
- Expired
- Aug 20, 2016, 7:15 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Flood severity
- None
Counties Hays County, TX, Travis County, TX
The radar
The Ft Hood radar (KGRK), 62 km from the middle of the area, began a volume at 21:09 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 |
|---|---|---|---|
| Aug 20, 4:55 PM CDT | FLASH FLOOD | 1 Sse Hays, TX | PUBLIC REPORT VIA TWITTER OF WATER OVER THE ROAD IN LEISUREWOODS NEAR BUDA. |
| Aug 20, 5:12 PM CDT | FLASH FLOOD | 3 Ese Sunset Valley, TX | MULTIPLE LOW WATER CROSSINGS BEING CLOSED ACROSS TRAVIS COUNTY VIA ATXFLOODS. |
| Aug 20, 5:27 PM CDT | FLASH FLOOD | 4 Ssw Manor, TX | WATER OVER THE ROADWAY AT THE SH 130 ACCESS ROAD AND BLOOR ROAD. REPORTED VIA TWITTER. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 9.2 hours before the alert went out and 277 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
- 107 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 598 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 176 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted.
980
WGUS54 KEWX 202110
FFWEWX
TXC209-453-210015-
/O.NEW.KEWX.FF.W.0078.160820T2110Z-160821T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
410 PM CDT SAT AUG 20 2016
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
TRAVIS COUNTY IN SOUTH CENTRAL TEXAS...
HAYS COUNTY IN SOUTH CENTRAL TEXAS...
* UNTIL 715 PM CDT
* AT 409 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
VERY HEAVY RAINFALL ACROSS THE WARNED AREA. FLASH FLOODING IS
EXPECTED TO BEGIN SHORTLY AFTER RAINFALL BEGINS.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
AUSTIN...ROUND ROCK...CEDAR PARK...PFLUGERVILLE...SAN MARCOS...
ELGIN...WIMBERLEY...DRIPPING SPRINGS...WINDEMERE...
TANGLEWOOD FOREST...AUSTIN BERGSTROM INT AP...ANDERSON MILL...
KYLE...LEANDER...LAKEWAY...BUDA...LAGO VISTA...MANOR...
BEE CAVE AND WEST LAKE HILLS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
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.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.
&&
LAT...LON 3061 9792 3057 9793 3054 9787 3047 9785
3043 9778 3050 9760 3042 9737 3020 9750
3002 9771 3000 9785 2984 9802 3003 9829
3036 9817 3046 9810 3049 9810 3050 9812
3062 9805 3061 9800 3063 9795
$$
TB32 follow-up statements
021
WGUS74 KEWX 202250
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
550 PM CDT SAT AUG 20 2016
TXC209-453-210015-
/O.CON.KEWX.FF.W.0078.000000T0000Z-160821T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TRAVIS TX-HAYS TX-
550 PM CDT SAT AUG 20 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR
TRAVIS AND HAYS COUNTIES...
AT 541 PM CDT...DOPPLER RADAR INDICATED THE HEAVY RAIN HAS MOVED OUT
OF THE TRAVIS AND HAYS COUNTIES. LIGHT TO MODERATE RAINS WILL
CONTINUE FOR THE NEXT HOUR OR SO. RADAR AND RAIN GAUGES INDICATE
THAT UP TO 2.5 INCHES OF RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS
OCCURRING ACROSS TRAVIS AND HAYS COUNTIES. RISES HAVE BEEN OBSERVED
ON ONION CREEK...WILLIAMSON CREEK...WALNUT CREEK AND OTHER CREEKS
ACROSS MAINLY EASTERN PARTS OF TRAVIS AND HAYS COUNTIES. FLOODING
OVER SOME ROADS IS ALSO BEING REPORTED IN THOSE AREAS.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
AUSTIN...ROUND ROCK...CEDAR PARK...PFLUGERVILLE...SAN MARCOS...
ELGIN...WIMBERLEY...DRIPPING SPRINGS...WINDEMERE...
TANGLEWOOD FOREST...AUSTIN BERGSTROM INT AP...ANDERSON MILL...KYLE...
LEANDER...LAKEWAY...BUDA...LAGO VISTA...MANOR...
BEE CAVE AND WEST LAKE HILLS.
ADDITIONAL RAINFALL AMOUNTS OF UP TO 1/4 INCH ARE POSSIBLE IN TRAVIS
COUNTY WITH ONLY A FEW HUNDREDTHS OF AN INCH IN HAYS COUNTY.
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.
STAY AWAY OR BE SWEPT AWAY. RIVER BANKS AND CULVERTS CAN BECOME
UNSTABLE AND UNSAFE.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.
&&
LAT...LON 3061 9792 3057 9793 3054 9787 3047 9785
3043 9778 3050 9760 3042 9737 3020 9750
3002 9771 3000 9785 2984 9802 3003 9829
3036 9817 3046 9810 3049 9810 3050 9812
3062 9805 3061 9800 3063 9795
$$
CP188
WGUS74 KEWX 210007
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
707 PM CDT SAT AUG 20 2016
TXC209-453-210016-
/O.EXP.KEWX.FF.W.0078.000000T0000Z-160821T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TRAVIS TX-HAYS TX-
707 PM CDT SAT AUG 20 2016
...THE FLASH FLOOD WARNING FOR TRAVIS AND HAYS COUNTIES WILL EXPIRE
AT 715 PM CDT...
THE HEAVY RAIN HAS ENDED FOR THE TIME BEING. HOWEVER, ONGOING
FLOODING OF LOW WATER CROSSINGS AND AREA ROADWAYS MAY CONTINUE FOR
THE NEXT SEVERAL HOURS. ADDITIONAL RAINFALL IS EXPECTED LATER
TONIGHT AS WELL, SO PLEASE CONTINUE TO HEED ANY ROAD CLOSURES AND
DO NOT DRIVE AROUND BARRIERS.
LAT...LON 3061 9792 3057 9793 3054 9787 3047 9785
3043 9778 3050 9760 3042 9737 3020 9750
3002 9771 3000 9785 2984 9802 3003 9829
3036 9817 3046 9810 3049 9810 3050 9812
3062 9805 3061 9800 3063 9795
$$
TB3The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 7:53 PM CDT | Areal Flood Advisory | EWX | Val Verde | 2 hr |
| Aug 19, 8:07 PM CDT | Special Weather Statement | EWX | Val Verde | 38 min |
| Aug 19, 10:18 PM CDT | Areal Flood Advisory | EWX | Val Verde | 3 hr |
| Aug 19, 11:25 PM CDT | Special Weather Statement | EWX | Val Verde | 50 min |
| Aug 20, 12:18 AM CDT | Flash Flood Watch | EWX | Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 27 more | 43 hr |
| Aug 20, 12:59 AM CDT | Special Weather Statement | EWX | Val Verde | 46 min |
| Aug 20, 1:17 AM CDT | Flash Flood Warning | EWX | Val Verde | 3 hr |
| Aug 20, 3:55 AM CDT | Areal Flood Advisory | EWX | Kinney | 3 hr |
| Aug 20, 4:15 AM CDT | Areal Flood Advisory | EWX | Edwards, Val Verde | 3 hr |
| Aug 20, 4:46 AM CDT | Flash Flood Warning | EWX | Edwards, Kinney, Val Verde | 3 hr |
| Aug 20, 7:19 AM CDT | Areal Flood Advisory | EWX | Bandera, Edwards, Kinney, Maverick, Real, Uvalde and 1 more | 3 hr |
| Aug 20, 7:29 AM CDT | River Flood Warning | EWX | Val Verde | 24 hr |
| Aug 20, 7:29 AM CDT | River Flood Warning | EWX | Val Verde | 20 hr |
| Aug 20, 8:11 AM CDT | Flash Flood Warning | EWX | Maverick, Uvalde, Zavala | 4 hr |
| Aug 20, 10:00 AM CDT | River Flood Warning | EWX | Uvalde | 13 hr |
| Aug 20, 10:05 AM CDT | Areal Flood Advisory | EWX | Frio, Medina | 3 hr |
| Aug 20, 3:41 PM CDT | Areal Flood Advisory | EWX | Blanco, Hays, Travis, Williamson | 3 hr |
| Aug 20, 4:13 PM CDT | Special Weather Statement | EWX | Travis | 47 min |
| Aug 20, 4:19 PM CDT | Areal Flood Advisory | EWX | Llano | 116 min |
| Aug 20, 5:01 PM CDT | Flash Flood Warning | EWX | Williamson | 3 hr |
| Aug 20, 5:03 PM CDT | Areal Flood Advisory | EWX | Bastrop, Caldwell, Fayette, Gonzales, Lee | 3 hr |
| Aug 20, 6:18 PM CDT | Areal Flood Advisory | EWX | Wilson | 3 hr |
| Aug 20, 6:46 PM CDT | River Flood Warning | EWX | Travis | 20 hr |
Nearby
Flash Flood Warnings in Texas, 2016Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.