Alert archive / Texas / Flash Flood Warnings in 2007
Flash Flood Warning 7, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Oct 16, 2007, 3:23 AM CDT for Lavaca 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
- Oct 16, 2007, 3:23 AM CDT (08:23 UTC)
- Expired
- Oct 16, 2007, 6:30 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), 128 km from the middle of the area, began a volume at 08:23 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 |
|---|---|---|---|
| Oct 16, 3:25 AM CDT | FLASH FLOOD | 6 N Speaks, TX | WATER RESCUE ON FARM ROAD 530 |
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, 8.4 hours before the alert went out and 185 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
- 1793 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 1018 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS54 KEWX 160825
FFWEWX
TXC285-161130-
/O.NEW.KEWX.FF.W.0007.071016T0823Z-071016T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
323 AM CDT TUE OCT 16 2007
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
LAVACA COUNTY...
* UNTIL 630 AM CDT.
* AT 313 AM CDT...THE NATIONAL WEATHER SERVICE HAS DETERMINED THAT
RAINFALL ESTIMATES FROM DOPPLER RADAR INDICATE FLASH FLOODING
CONTINUES BETWEEN SPEAKS, SUBLIME AND HALLETTSVILLE. AN ESTIMATED
6 TO 10 INCHES OF HAS FALLEN SINCE MIDNIGHT WITH AN ADDITIONAL 2
TO 4 INCHES OVER THE NEXT 3 HOURS.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VIENNA.
REPORT FLASH FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY
TO THE NATIONAL WEATHER SERVICE.
LAT...LON 2932 9659 2924 9668 2906 9693 2929 9715
2930 9715 2943 9687 2947 9667 2944 9666
2935 9657
TIME...MOT...LOC 0823Z 180DEG 0KT 2933 9667
$$2 follow-up statements
000
WGUS74 KEWX 161010
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
459 AM CDT TUE OCT 16 2007
TXC285-161130-
/O.CON.KEWX.FF.W.0007.000000T0000Z-071016T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAVACA TX-
459 AM CDT TUE OCT 16 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 AM CDT FOR
LAVACA COUNTY...
AT 451 AM CDT...HEAVY RAINS REMAIN STATIONARY 8 MILES NORTHWEST OF
SPEAKS. AN ESTIMATED 2 TO 3 INCHES OF RAIN HAS FALLEN BETWEEN
HALLETTSVILLE AND SPEAKS SINCE 330 AM....WITH LOCALIZED RAINFALL
TOTALS IN EXCESS OF 10 INCHES SINCE MIDNIGHT. AN ADDITIONAL 2 TO 3
INCHES OF RAIN IS PROBABLE OVER THIS AREA BEFORE 630 AM. TRAVEL
BETWEEN HALLETTSVILLE AND SPEAKS...AND EZZELL AND VIENNA...IS
DISCOURAGED.
DO NOT DRIVE WHERE WATER COVERS THE ROAD. TWO FEET OF RUSHING WATER
CAN CARRY AWAY MOST VEHICLES...INCLUDING SUVS AND PICKUPS. TURN
AROUND DONT DROWN.
REPORT FLASH FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY
TO THE NATIONAL WEATHER SERVICE.
LAT...LON 2932 9659 2924 9668 2906 9693 2929 9715
2930 9715 2943 9687 2947 9667 2944 9666
2935 9657
TIME...MOT...LOC 0959Z 180DEG 0KT 2934 9676
$$000
WGUS74 KEWX 161124
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
612 AM CDT TUE OCT 16 2007
TXC285-161130-
/O.CON.KEWX.FF.W.0007.000000T0000Z-071016T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAVACA TX-
612 AM CDT TUE OCT 16 2007
...A FLASH FLOOD WARNING EXPIRES AT 630 AM CDT FOR LAVACA
COUNTY...
AT 605 AM CDT...LIGHT RAIN WAS FALLING OVER LAVACA COUNTY. RAINFALL
ESTIMATED BY NATIONAL WEATHER SERVICE DOPPLER RADARS SHOW AS MUCH AS
12 INCHES HAS FALLEN NEAR THE COMMUNITY OF VIENNA SINCE MIDNIGHT.
ANY ADDITIONAL RAINFALL THIS MORNING WILL NOT PRODUCE FLASH
FLOODING. HOWEVER, SOME SECONDARY ROADS BETWEEN HALLETTSVILLE AND
SPEAKS MAY BE IMPASSABLE AT LOW WATER CROSSINGS.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VIENNA.
LAT...LON 2932 9659 2924 9668 2906 9693 2929 9715
2930 9715 2943 9687 2947 9667 2944 9666
2935 9657
TIME...MOT...LOC 1112Z 180DEG 0KT 2934 9676
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 16, 12:29 AM CDT | Flash Flood Warning | EWX | Lavaca | 3 hr |
Nearby
Flash Flood Warnings in Texas, 2007Every flash flood warning in 2007
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.