Alert archive / Texas / Flash Flood Warnings in 2007
Flash Flood Warning 8, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Nov 17, 2007, 7:01 PM CST for Gonzales County, Texas. It was in force for 9 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
- Nov 17, 2007, 7:01 PM CST (01:01 UTC)
- Expired
- Nov 18, 2007, 4:00 AM CST
- In force
- 9 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Flood severity
- None
County Gonzales County, TX
The radar
The Austin/San Antonio radar (KEWX), 61 km from the middle of the area, began a volume at 01:03 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 |
|---|---|---|---|
| Nov 17, 9:00 PM CST | FLOOD | 5 N Gonzales, TX | FARM TO MARKET ROAD 794 FROM GONZALES TO NEAR HARWOOD IS CLOSED DUE TO WATER OVER THE ROAD. |
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, 1.0 hours before the alert went out and 202 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
- 1832 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 585 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 3.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS54 KEWX 180103
FFWEWX
TXC177-180400-
/O.NEW.KEWX.FF.W.0008.071118T0101Z-071118T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
701 PM CST SAT NOV 17 2007
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
GONZALES COUNTY...
* UNTIL 1000 PM CST.
* AT 654 PM CST...THE NATIONAL WEATHER SERVICE HAS DETERMINED THAT
RAINFALL ESTIMATES FROM DOPPLER RADAR INDICATE FLASH FLOODING FROM
THUNDERSTORMS OVER THE WARNED AREA.
* LOCATIONS IN THE WARNING AREA INCLUDE WAELDER...PALMETO AND
GONZALES.
RAINFALL AMOUNTS BETWEEN TWO AND THREE INCHES HAVE RESULTED FROM
HEAVY DOWNPOURS ACROSS CENTRAL GONZALES COUNTY...MAINLY SOUTH OF
INTERSTATE 10 NEAR THE TOWN OF GONZALES. AN ADDITIONAL ONE TO TWO
INCHES OF RAIN OVER THIS AREA WILL CAUSE DANGEROUS FLASH FLOODING
THROUGH 10 PM CST.
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 2960 9718 2959 9720 2955 9722 2922 9771
2936 9786 2952 9773 2963 9763 2978 9732
2964 9715
TIME...MOT...LOC 0101Z 180DEG 0KT 2950 9745
$$5 follow-up statements
000
WGUS74 KEWX 180143
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
736 PM CST SAT NOV 17 2007
TXC177-180400-
/O.CON.KEWX.FF.W.0008.000000T0000Z-071118T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GONZALES TX-
736 PM CST SAT NOV 17 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1000 PM CST FOR
GONZALES COUNTY...
AT 730 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
SHOW SHOWERS AND THUNDERSTORMS PRODUCING HEAVY DOWNPOURS CONTINUING
ACROSS PORTIONS OF GONZALES COUNTY. RADAR ESTIMATED RAINFALL AMOUNTS
IN EXCESS OF THREE INCHES AROUND THE TOWN OF GONZALES.
LOCATIONS IN THE WARNING AREA INCLUDE WAELDER...PALMETO AND GONZALES.
RUNOFF FROM HEAVY RAIN WILL FLOOD CREEKS, STREAMS, STREET
INTERSECTIONS, CULVERTS AND UNDERPASSES. LOW LYING PLACES THAT
NORMALLY FLOOD COULD BECOME DEATH TRAPS. DO NOT CROSS ANY FLOODED
AREA. TURN AROUND DONT DROWN.
LAT...LON 2960 9718 2959 9720 2955 9722 2922 9771
2936 9786 2952 9773 2963 9763 2978 9732
2964 9715
TIME...MOT...LOC 0136Z 180DEG 0KT 2950 9745
$$000
WGUS54 KEWX 180350
FFWEWX
TXC177-180600-
/O.EXT.KEWX.FF.W.0008.000000T0000Z-071118T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
948 PM CST SAT NOV 17 2007
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS EXTENDED THE
* FLASH FLOOD WARNING FOR...
GONZALES COUNTY...
* UNTIL MIDNIGHT CST.
* AT 942 PM CST...THE NATIONAL WEATHER SERVICE HAS DETERMINED THAT
RAINFALL ESTIMATES FROM DOPPLER RADAR INDICATE FLASH FLOODING FROM
THUNDERSTORMS OVER THE WARNED AREA.
* LOCATIONS IN THE WARNING AREA INCLUDE WAELDER...PALMETO AND
GONZALES.
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.
LAT...LON 2960 9718 2959 9720 2955 9722 2922 9771
2936 9786 2952 9773 2963 9763 2978 9732
2964 9715
TIME...MOT...LOC 0348Z 180DEG 0KT 2950 9745
$$000
WGUS74 KEWX 180451
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1048 PM CST SAT NOV 17 2007
TXC177-180600-
/O.CON.KEWX.FF.W.0008.000000T0000Z-071118T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GONZALES TX-
1048 PM CST SAT NOV 17 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST FOR
GONZALES COUNTY...
AT 1042 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT SHOWERS AND THUNDERSTORMS PRODUCING FLASH FLOODING OVER THE
WARNED AREA. RADAR ESTIMATED AMOUNTS BETWEEN TWO AND FOUR
INCHES...WITH SPOTTY AMOUNTS OVER FIVE INCHES ACROSS CENTRAL AND
NORTHERN GONZALES COUNTY.
LOCATIONS IN THE WARNING AREA INCLUDE WAELDER...PALMETO AND GONZALES.
WHEN WATER COVERS THE ROAD...TURN AROUND DONT DROWN. THE LIFE YOU
SAVE MAY BE YOUR OWN.
LAT...LON 2960 9718 2959 9720 2955 9722 2922 9771
2936 9786 2952 9773 2963 9763 2978 9732
2964 9715
TIME...MOT...LOC 0448Z 180DEG 0KT 2950 9745
$$000
WGUS54 KEWX 180549
FFWEWX
TXC177-181000-
/O.EXT.KEWX.FF.W.0008.000000T0000Z-071118T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1149 PM CST SAT NOV 17 2007
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS EXTENDED THE
* FLASH FLOOD WARNING FOR...
GONZALES COUNTY...
* UNTIL 400 AM CST.
* AT 1142 PM CST...THE NATIONAL WEATHER SERVICE HAS DETERMINED THAT
RAINFALL ESTIMATES FROM DOPPLER RADAR INDICATE FLASH FLOODING FROM
EARLIER THUNDERSTORMS OVER THE WARNED AREA.
* LOCATIONS IN THE WARNING AREA INCLUDE WAELDER...PALMETO AND
GONZALES.
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 2960 9718 2959 9720 2955 9722 2922 9771
2936 9786 2952 9773 2963 9763 2978 9732
2964 9715
TIME...MOT...LOC 0549Z 180DEG 0KT 2950 9745
$$000
WGUS74 KEWX 180742
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
139 AM CST SUN NOV 18 2007
TXC177-181000-
/O.CON.KEWX.FF.W.0008.000000T0000Z-071118T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GONZALES TX-
139 AM CST SUN NOV 18 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 400 AM CST FOR
GONZALES COUNTY...
AT 136 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
INDICATE THE POTENTIAL FOR FLASH FLOODING FROM SHOWERS AND
THUNDERSTORMS OVER EASTERN GONZALES COUNTY.
LOCATIONS IN THE WARNING AREA INCLUDE WAELDER AND GONZALES.
WHEN WATER COVERS THE ROAD...TURN AROUND DONT DROWN. THE LIFE YOU
SAVE MAY BE YOUR OWN.
LAT...LON 2964 9715 2961 9717 2959 9720 2955 9722
2941 9744 2963 9763 2978 9732
TIME...MOT...LOC 0739Z 180DEG 0KT 2950 9745
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 17, 6:35 PM CST | Tornado Warning | EWX | Gonzales | 25 min |
| Nov 17, 9:00 PM CST | Flash Flood Warning | EWX | Fayette | 7 hr |
| Nov 17, 11:19 PM CST | Dense Fog Advisory | EWX | Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 23 more | 11 hr |
| Nov 18, 2:39 AM CST | Flash Flood Warning | EWX | Fayette | 3 hr |
| Nov 18, 6:02 AM CST | Flash Flood Warning | EWX | Fayette | 3 hr |
| Nov 18, 6:15 AM CST | Flash Flood Warning | EWX | Bastrop | 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.