Alert archive / Texas / Flash Flood Warnings in 2016
Flash Flood Warning 71, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Aug 16, 2016, 11:48 PM CDT for Travis County, Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 16, 2016, 11:48 PM CDT (04:48 UTC)
- Expired
- Aug 17, 2016, 2:45 AM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Flood severity
- None
County Travis County, TX
The radar
The Ft Hood radar (KGRK), 67 km from the middle of the area, began a volume at 04:50 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
Fort Worth, TX (KFWD), launched 00:00Z, 4.8 hours before the alert went out and 285 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
- 50 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 987 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- -11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted.
357 WGUS54 KEWX 170448 FFWEWX TXC453-170745- /O.NEW.KEWX.FF.W.0071.160817T0448Z-160817T0745Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1148 PM CDT TUE AUG 16 2016 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHWESTERN TRAVIS COUNTY IN SOUTH CENTRAL TEXAS... * UNTIL 245 AM CDT * AT 1147 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY RAIN IN SOUTHWEST TRAVIS COUNTY. BETWEEN 1 AND 2 INCHES OF RAIN HAS ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY. * SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... AUSTIN...LAKEWAY...LAGO VISTA...BEE CAVE...WEST LAKE HILLS... THE HILLS...MANSFIELD DAM...HUDSON BEND...SHADY HOLLOW... BARTON CREEK...JONESTOWN AND LOST CREEK. ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE WARNED AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. && LAT...LON 3036 9780 3013 9785 3028 9807 3050 9800 $$ RUNYEN
1 follow-up statement
341 WGUS74 KEWX 170554 FFSEWX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1254 AM CDT WED AUG 17 2016 TXC453-170745- /O.CON.KEWX.FF.W.0071.000000T0000Z-160817T0745Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ TRAVIS TX- 1254 AM CDT WED AUG 17 2016 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 245 AM CDT FOR SOUTHWESTERN TRAVIS COUNTY... AT 1251 AM CDT...DOPPLER RADAR ESTIMATES BETWEEN 1 AND 2 INCHES OF RAINFALL HAS OCCURRED ACROSS SOUTHWESTERN TRAVIS COUNTY. RAINFALL RATES WILL CONTINUE TO DIMINISH WITH AN ADDITIONAL 1/4 TO 1/2 INCH POSSIBLE OVER PORTIONS OF THE AREA. DESPITE RAINFALL INTENSITY DIMINISHING...FLASH FLOODING IS STILL POSSIBLE AS EARLIER HEAVY RAINFALL RUNS OFF. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... LAKEWAY...LAGO VISTA...BEE CAVE...WEST LAKE HILLS...THE HILLS... MANSFIELD DAM...HUDSON BEND...SHADY HOLLOW...BARTON CREEK... JONESTOWN AND LOST CREEK. PRECAUTIONARY/PREPAREDNESS ACTIONS... TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. && LAT...LON 3036 9780 3013 9785 3028 9807 3050 9800 $$ RUNYEN
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 7:16 PM CDT | Areal Flood Advisory | EWX | Bastrop, Lee, Williamson | 119 min |
| Aug 16, 9:25 PM CDT | River Flood Warning | EWX | Travis | 14 hr |
| Aug 16, 10:58 PM CDT | Areal Flood Advisory | EWX | Travis | 2 hr |
| Aug 17, 12:31 AM CDT | Flash Flood Warning | EWX | Burnet, Travis | 3 hr |
| Aug 17, 2:01 AM CDT | Areal Flood Advisory | EWX | Burnet | 3 hr |
| Aug 17, 3:56 AM CDT | Areal Flood Advisory | EWX | Bexar | 2 hr |
| Aug 17, 4:12 AM CDT | Areal Flood Advisory | EWX | Williamson | 2 hr |
| Aug 17, 6:37 AM CDT | River Flood Warning | EWX | Travis | 16 hr |
| Aug 17, 12:03 PM CDT | Areal Flood Advisory | EWX | Bastrop, Caldwell, Travis, Williamson | 3 hr |
| Aug 17, 4:49 PM CDT | Areal Flood Advisory | EWX | Kendall | 116 min |
| Aug 17, 4:59 PM CDT | Areal Flood Advisory | EWX | Bexar | 2 hr |
| Aug 17, 5:41 PM CDT | Areal Flood Advisory | EWX | Llano | 2 hr |
| Aug 17, 5:48 PM CDT | Areal Flood Advisory | EWX | Bandera | 117 min |
| Aug 17, 6:05 PM CDT | Flash Flood Warning | EWX | Llano | 115 min |
| Aug 17, 6:15 PM CDT | Flash Flood Warning | EWX | Bandera, Kendall, Kerr | 3 hr |
| Aug 17, 6:43 PM CDT | Areal Flood Advisory | EWX | Medina | 2 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.