Alert archive / Texas / Flash Flood Warnings in 2015
Flash Flood Warning 91, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at May 27, 2015, 12:09 PM CDT for Blanco County, Comal County, Hays 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
- May 27, 2015, 12:09 PM CDT (17:09 UTC)
- Expired
- May 27, 2015, 3:15 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Flood severity
- None
Counties Blanco County, TX, Comal County, TX, Hays County, TX
The radar
The Austin/San Antonio radar (KEWX), 44 km from the middle of the area, began a volume at 17:09 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.
The nearest sounding before it
Del Rio, TX (KDLF), launched 12:00Z, 5.2 hours before the alert went out and 258 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
- 3197 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 633 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 200 m²/s²
- Significant tornado parameter
- 2.4
- Supercell composite
- 13.0
The text
As transmitted, in the capitals the NWS used until 2016.
664
WGUS54 KEWX 271709
FFWEWX
TXC031-091-209-272015-
/O.NEW.KEWX.FF.W.0091.150527T1709Z-150527T2015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1209 PM CDT WED MAY 27 2015
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTH CENTRAL COMAL COUNTY IN SOUTH CENTRAL TEXAS...
WEST CENTRAL HAYS COUNTY IN SOUTH CENTRAL TEXAS...
SOUTH CENTRAL BLANCO COUNTY IN SOUTH CENTRAL TEXAS...
* UNTIL 315 PM CDT
* AT 1208 PM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF RAIN HAS
BEEN ESTIAMTED TO HAVE FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN
SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
TWIN SISTERS AND THE LITTLE BLANCO RIVER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
REMAIN ALERT FOR FLOODING EVEN IN LOCATIONS NOT RECEIVING RAIN.
CREEKS...STREAMS AND RIVERS CAN BECOME RAGING KILLER CURRENTS IN A
MATTER OF MINUTES...EVEN FROM DISTANT RAINFALL.
&&
LAT...LON 3005 9813 2991 9833 3003 9847 3015 9835
$$
RUNYEN2 follow-up statements
726 WGUS74 KEWX 271758 FFSEWX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1258 PM CDT WED MAY 27 2015 TXC031-091-209-272015- /O.CON.KEWX.FF.W.0091.000000T0000Z-150527T2015Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ COMAL TX-HAYS TX-BLANCO TX- 1258 PM CDT WED MAY 27 2015 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 315 PM CDT FOR NORTH CENTRAL COMAL...WEST CENTRAL HAYS AND SOUTH CENTRAL BLANCO COUNTIES... AT 1254 PM CDT...DOPPLER RADAR INDICATED EARLIER THUNDERSTORMS PRODUCED 1 1/2 TO 2 INCHES OF RAINFALL ACROSS THE WARNED AREA. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...TWIN SISTERS. THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...LITTLE BLANCO RIVER. WHILE RAINFALL HAS ENDED...RUNOFF FROM EARLIER HEAVY RAINFALL WILL CONTINUE THE FLASH FLOODING THREAT OF LOW WATER CROSSING. PRECAUTIONARY/PREPAREDNESS ACTIONS... MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE. TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. && LAT...LON 3005 9813 2991 9833 3003 9847 3015 9835 $$ RUNYEN
190 WGUS74 KEWX 271910 FFSEWX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 210 PM CDT WED MAY 27 2015 TXC031-091-209-271919- /O.CAN.KEWX.FF.W.0091.000000T0000Z-150527T2015Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ COMAL TX-HAYS TX-BLANCO TX- 210 PM CDT WED MAY 27 2015 ...THE FLASH FLOOD WARNING FOR NORTH CENTRAL COMAL...WEST CENTRAL HAYS AND SOUTH CENTRAL BLANCO COUNTIES IS CANCELLED... THE FLASH FLOOD THREAT IS ENDING. PLEASE CONTINUE TO HEED ANY ROAD CLOSURES AND BE ALERT FOR FLOODING OF LOW WATER CROSSINGS. LAT...LON 3005 9813 2991 9833 3003 9847 3015 9835 $$ RUNYEN
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 5:32 AM CDT | Flash Flood Warning | EWX | Fayette, Lee | 118 min |
| May 27, 10:12 AM CDT | Areal Flood Advisory | EWX | Hays, Travis | 2 hr |
| May 27, 10:30 AM CDT | Severe Thunderstorm Warning | EWX | Travis | 45 min |
| May 27, 11:01 AM CDT | Flash Flood Warning | EWX | Hays, Travis | 2 hr |
| May 27, 11:15 AM CDT | Severe Thunderstorm Warning | EWX | Travis | 19 min |
| May 27, 11:19 AM CDT | Severe Thunderstorm Warning | EWX | Blanco, Comal, Hays | 41 min |
| May 27, 11:47 AM CDT | Tornado Warning | EWX | Blanco | 27 min |
| May 27, 12:00 PM CDT | Severe Thunderstorm Warning | EWX | Blanco, Hays | 20 min |
| May 27, 12:48 PM CDT | Special Weather Statement | EWX | Gillespie | 27 min |
| May 27, 12:52 PM CDT | Flash Flood Watch | EWX | Bastrop, Blanco, Burnet, Caldwell, Gillespie, Hays and 4 more | 8 hr |
| May 27, 1:38 PM CDT | Special Weather Statement | EWX | Llano | 52 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.