Alert archive / Texas / Flash Flood Warnings in 2007
Flash Flood Warning 9, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Nov 17, 2007, 9:00 PM CST for Fayette County, Texas. It was in force for 7 hr. 2 reports 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, 9:00 PM CST (03:00 UTC)
- Expired
- Nov 18, 2007, 4:00 AM CST
- In force
- 7 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Flood severity
- None
County Fayette County, TX
The radar
The Austin/San Antonio radar (KEWX), 102 km from the middle of the area, began a volume at 03:02 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, 9:30 PM CST | FLOOD | 7 E Flatonia, TX | MUCH OF HIGHWAY 90 FROM FLATONIA TO SCHULENBURG IS CLOSED DUE TO WATER OVER THE ROAD. |
| Nov 17, 9:45 PM CST | FLOOD | 5 S La Grange, TX | MUCH OF HIGHWAY 77 FROM LA GRANGE TO SCHULENBURG TO CLOSED DUE TO WATER COVERING 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, 3.0 hours before the alert went out and 235 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 180300
FFWEWX
TXC149-180600-
/O.NEW.KEWX.FF.W.0009.071118T0300Z-071118T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
900 PM CST SAT NOV 17 2007
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
FAYETTE COUNTY...
* UNTIL MIDNIGHT CST.
* AT 854 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 ROUND TOP...MULDOON...LA
GRANGE...FAYETTEVILLE AND CISTERN.
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 2978 9731 3008 9666 2997 9658 2964 9689
2964 9712
TIME...MOT...LOC 0300Z 180DEG 0KT 2978 9699
$$2 follow-up statements
000
WGUS74 KEWX 180337
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
935 PM CST SAT NOV 17 2007
TXC149-180600-
/O.CON.KEWX.FF.W.0009.000000T0000Z-071118T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FAYETTE TX-
935 PM CST SAT NOV 17 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST FOR
FAYETTE COUNTY...
AT 924 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT THUNDERSTORMS PRODUCING FLASH FLOODING OVER THE WARNED AREA.
RAINFALL AMOUNTS BETWEEN THREE AND FOUR INCHES...WITH SPOTTY TOTALS
IN EXCESS OF FIVE INCHES ARE LIKELY ACROSS SOUTHERN FAYETTE COUNTY
BETWEEN FLATONIA AND SCHULENBURG.
LOCATIONS IN THE WARNING AREA INCLUDE ROUND TOP...MULDOON...LA
GRANGE...FAYETTEVILLE AND CISTERN.
IT IS HARD TO RECOGNIZE THE DANGERS OF FLOODING AT NIGHT. IF FLOOD
WATERS RISE ACT QUICKLY. DO NOT STAY IN FLOOD PRONE AREAS.
LAT...LON 2978 9731 3008 9666 2997 9658 2964 9689
2964 9712
TIME...MOT...LOC 0335Z 180DEG 0KT 2978 9699
$$000
WGUS54 KEWX 180548
FFWEWX
TXC149-181000-
/O.EXT.KEWX.FF.W.0009.000000T0000Z-071118T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1148 PM CST SAT NOV 17 2007
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS EXTENDED THE
* FLASH FLOOD WARNING FOR...
FAYETTE 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
THUNDERSTORMS OVER THE WARNED AREA.
* LOCATIONS IN THE WARNING AREA INCLUDE ROUND TOP...MULDOON...LA
GRANGE...FAYETTEVILLE AND CISTERN.
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 2978 9731 3008 9666 2997 9658 2964 9689
2964 9712
TIME...MOT...LOC 0548Z 180DEG 0KT 2978 9699
$$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, 7:01 PM CST | Flash Flood Warning | EWX | Gonzales | 9 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.