Alert archive / Texas / Flash Flood Warnings in 2007
Flash Flood Warning 6, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Oct 16, 2007, 12:29 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, 12:29 AM CDT (05:29 UTC)
- Expired
- Oct 16, 2007, 3:30 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), 126 km from the middle of the area, began a volume at 05:31 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, 5.5 hours before the alert went out and 186 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 160529
FFWEWX
TXC285-160830-
/O.NEW.KEWX.FF.W.0006.071016T0529Z-071016T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1229 AM CDT TUE OCT 16 2007
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
LAVACA COUNTY...
* UNTIL 330 AM CDT.
* AT 1221 AM CDT...THE NATIONAL WEATHER SERVICE HAS DETERMINED THAT
RAINFALL ESTIMATES FROM DOPPLER RADAR INDICATE FLASH FLOODING
FROM THUNDERSTORMS ALONG A LINE EXTENDING FROM 19 MILES SOUTHWEST
OF EAGLE LAKE TO 9 MILES SOUTHEAST OF HALLETTSVILLE TO 7 MILES
SOUTHEAST OF YOAKUM. THE STORMS PRODUCING FLASH FLOODING WERE
NEARLY STATIONARY.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO HOPE.
IT IS HARD TO RECOGNIZE THE DANGERS OF FLOODING AT NIGHT. IF FLOOD
WATERS RISE ACT QUICKLY. DO NOT STAY IN FLOOD PRONE AREAS.
LAT...LON 2932 9659 2928 9675 2916 9702 2929 9715
2930 9715 2943 9687 2947 9667 2944 9666
2935 9657
TIME...MOT...LOC 0529Z 258DEG 3KT 2941 9657 2934 9687
2926 9703
$$2 follow-up statements
000
WGUS74 KEWX 160611
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
100 AM CDT TUE OCT 16 2007
TXC285-160830-
/O.CON.KEWX.FF.W.0006.000000T0000Z-071016T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAVACA TX-
100 AM CDT TUE OCT 16 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 330 AM CDT FOR
LAVACA COUNTY...
AT 1250 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT THUNDERSTORMS PRODUCING FLASH FLOODING. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 18 MILES SOUTHWEST OF EAGLE LAKE
TO 9 MILES SOUTHEAST OF HALLETTSVILLE TO 8 MILES EAST OF YOAKUM.
THIS AREA HAS ALREADY RECEIVED APPROXIMATELY 6 TO 8 INCHES OF RAIN.
EAST RAGSDALE CREEK AND THE NAVIDAD RIVER, NORTH OF SPEAKS, COULD
RECEIVE AN ADDITIONAL 4 INCHES OF RAIN BY 330 AM.
IT IS HARD TO RECOGNIZE THE DANGERS OF FLOODING AT NIGHT. IF FLOOD
WATERS RISE ACT QUICKLY. DO NOT STAY IN FLOOD PRONE AREAS.
REPORT FLASH FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY
TO THE NATIONAL WEATHER SERVICE.
LAT...LON 2932 9659 2928 9675 2916 9702 2929 9715
2930 9715 2943 9687 2947 9667 2944 9666
2935 9657
TIME...MOT...LOC 0600Z 258DEG 3KT 2942 9654 2935 9684
2927 9700
$$000
WGUS74 KEWX 160709
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
200 AM CDT TUE OCT 16 2007
TXC285-160830-
/O.CON.KEWX.FF.W.0006.000000T0000Z-071016T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAVACA TX-
200 AM CDT TUE OCT 16 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 330 AM CDT FOR
LAVACA COUNTY...
AT 154 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A HEAVY RAIN FROM MERGING SHOWERS AND THUNDERSTORMS BETWEEN
YOAKUM, SUBLIME AND SPEAKS. AN ESTIMATED 4.5 INCHES OF RAIN HAS
FALLEN OVER SANDIES AND EAST RAGSDALE CREEKS SINCE 1230 AM.
WITH CELL MERGERS CONTINUING, AN ADDITIONAL 2 TO 4 INCHES OF RAIN IS
POSSIBLE WITH LOCALIZED HIGHER AMOUNTS UP TO 6 INCHES OVER EAST
RAGSDALE CREEK AND SANDIES CREEK.
TRAVEL IN THIS AREA IS HIGHLY DISCOURAGED AS MANY LOW WATER
CROSSINGS MAY BE FLOODED.
IT IS HARD TO RECOGNIZE THE DANGERS OF FLOODING AT NIGHT. IF FLOOD
WATERS RISE ACT QUICKLY. DO NOT STAY IN FLOOD PRONE AREAS.
REPORT FLASH FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY
TO THE NATIONAL WEATHER SERVICE.
LAT...LON 2932 9659 2928 9675 2916 9702 2929 9715
2930 9715 2943 9687 2947 9667 2944 9666
2935 9657
TIME...MOT...LOC 0700Z 281DEG 3KT 2933 9670
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 16, 3:23 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.