Alert archive / Texas / Flash Flood Warnings in 2008
Flash Flood Warning 21, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Sep 14, 2008, 7:56 AM CDT for Lavaca 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
- Sep 14, 2008, 7:56 AM CDT (12:56 UTC)
- Expired
- Sep 14, 2008, 11:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Flood severity
- None
County Lavaca County, TX
The radar
The Austin/San Antonio radar (KEWX), 126 km from the middle of the area, began a volume at 12:57 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
Corpus Christi, TX (KCRP), launched 12:00Z, 0.9 hours before the alert went out and 171 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
- 1115 J/kg
- Mixed-layer CIN
- -101 J/kg
- Mixed-layer LCL
- 962 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -51 m²/s²
- 0-3 km storm-relative helicity
- -39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.6
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS54 KEWX 141256
FFWEWX
TXC285-141600-
/O.NEW.KEWX.FF.W.0021.080914T1256Z-080914T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
756 AM CDT SUN SEP 14 2008
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHERN LAVACA COUNTY...
* UNTIL 1100 AM CDT.
* AT 752 AM CDT...THE NATIONAL WEATHER SERVICE HAS DETERMINED THAT
RAINFALL ESTIMATES FROM DOPPLER RADAR INDICATE FLASH FLOODING FROM
VERY HEAVY RAINS ACROSS MUCH OF LAVACA COUNTY BETWEEN YOAKUM...
HALLETTSVILLE AND SPEAKS. RAINFALL RATES OF 1 TO 3 INCHES CAN BE
EXPECTED.
* LOCATIONS IN THE WARNING AREA INCLUDE SPEAKS AND EZZELL.
WHEN WATER COVERS THE ROAD...TURN AROUND DONT DROWN. THE LIFE YOU
SAVE MAY BE YOUR OWN.
LAT...LON 2907 9691 2906 9693 2925 9711 2946 9670
2935 9657
$$3 follow-up statements
000
WGUS74 KEWX 141344
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
844 AM CDT SUN SEP 14 2008
TXC285-141600-
/O.CON.KEWX.FF.W.0021.000000T0000Z-080914T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAVACA TX-
844 AM CDT SUN SEP 14 2008
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT FOR
SOUTHERN LAVACA COUNTY...
AT 831 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT THUNDERSTORMS PRODUCING 2 TO 5 INCHES OF RAIN OVER THE WARNED
AREA. LITTLE MOVEMENT WAS NOTED WITH THE THUNDERSTORMS, AND AN
ADDITIONAL 3 TO 5 INCHES OF RAIN IS POSSIBLE. MOST OF THE RAIN HAS
FALLEN OVER BIG BRUSHY CREEK AND CLARKS CREEK.
LOCATIONS IN THE WARNING AREA INCLUDE SPEAKS AND EZZELL.
WHEN WATER COVERS THE ROAD...TURN AROUND DONT DROWN. THE LIFE YOU
SAVE MAY BE YOUR OWN.
DO NOT DRIVE WHERE WATER COVERS THE ROAD. EVEN SUVS AND PICKUPS WILL
BE SWEPT AWAY BY AS LITTLE AS TWO FEET OF RUSHING WATER. TURN AROUND
DONT DROWN.
REPORT FLASH FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY.
LAT...LON 2907 9691 2906 9693 2925 9711 2946 9670
2935 9657
$$000
WGUS74 KEWX 141430
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
930 AM CDT SUN SEP 14 2008
TXC285-141600-
/O.CON.KEWX.FF.W.0021.000000T0000Z-080914T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAVACA TX-
930 AM CDT SUN SEP 14 2008
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT FOR
SOUTHERN LAVACA COUNTY...
AT 920 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT HEAVY SHOWERS ACROSS THE SOUTHERN MOST SECTIONS OF LAVACA
COUNTY. AN ESTIMATED 5 INCHES OF RAIN HAS FALLEN SOUTH OF SPEAKS
AND 7 MILES SOUTHWEST OF EZZELL SINCE 7 AM. WITH THE SLOW MOVEMENT
OF THE RAINS, AN ADDITIONAL 2 INCHES OF RAIN ARE POSSIBLE IN THE
NEXT HOUR.
LOCATIONS IN THE WARNING AREA INCLUDE SPEAKS AND EZZELL.
LAT...LON 2907 9691 2906 9693 2925 9711 2946 9670
2935 9657
$$000
WGUS74 KEWX 141523
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1023 AM CDT SUN SEP 14 2008
TXC285-141600-
/O.CON.KEWX.FF.W.0021.000000T0000Z-080914T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAVACA TX-
1023 AM CDT SUN SEP 14 2008
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT FOR
SOUTHERN LAVACA COUNTY...
AT 1008 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT LIGHT TO MODERATE RAIN COVERING THE SOUTHERN HALF OF LAVACA
COUNTY. AN ESTIMATED 3 TO 6 INCHES OF RAIN HAS FALLEN OVER THE PAST
3 HOURS SOUTHWEST OF EZZELL...AND JUST SOUTH OF SPEAKS. ALTHOUGH THE
RAINFALL INTENSITY HAS DECREASED, TOTAL RAIN ACCUMULATION COULD GO
AS HIGH AS 8 INCHES WHERE STATE HIGHWAY 111 AND FEDERAL HIGHWAY 77
INTERSECT. THE BIG AND LITTLE BRUSHY CREEKS AND LOW LYING ROADS IN
THIS AREA MAY BE FLOODED.
LOCATIONS IN THE WARNING AREA INCLUDE SPEAKS AND EZZELL.
WHEN WATER COVERS THE ROAD...TURN AROUND DONT DROWN. THE LIFE YOU
SAVE MAY BE YOUR OWN.
DO NOT DRIVE WHERE WATER COVERS THE ROAD. EVEN SUVS AND PICKUPS WILL
BE SWEPT AWAY BY AS LITTLE AS TWO FEET OF RUSHING WATER. TURN AROUND
DONT DROWN.
REPORT FLASH FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY.
LAT...LON 2907 9691 2906 9693 2925 9711 2946 9670
2935 9657
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 14, 11:00 AM CDT | Flash Flood Warning | EWX | Lavaca | 52 min |
Nearby
Flash Flood Warnings in Texas, 2008Every flash flood warning in 2008
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.