Alert archive / Texas / Flash Flood Warnings in 2007
Flash Flood Warning 484, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Aug 17, 2007, 8:55 PM CDT for Edwards 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 counties it named.
The facts
- Issued
- Aug 17, 2007, 8:55 PM CDT (01:55 UTC)
- Expired
- Aug 17, 2007, 11:45 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Edwards County, TX
The radar
The Laughlin AFB radar (KDFX), 79 km from the middle of the area, began a volume at 01:59 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
Del Rio, TX (KDRT), launched 00:00Z, 1.9 hours before the alert went out and 86 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
- 2781 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 1575 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS54 KEWX 180156
FFWEWX
TXC137-180445-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
855 PM CDT FRI AUG 17 2007
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EDWARDS COUNTY...
* UNTIL 1145 PM CDT
* AT 855 PM CDT...THE NATIONAL WEATHER SERVICE HAS DETERMINED THAT
AN AREA OF THUNDERSTORMS ARE PRODUCING FLASH FLOODING OVER
NORTHWESTERN EDWARDS COUNTY. THESE THUNDERSTORMS WERE LOCATED
FROM LOMA ALTA TO THE INTERSECTION OF HIGHWAYS 277 AND 55...MOVING
NORTHEAST AT 10 MPH.
RAINFALL AMOUNTS OF 3 TO 6 INCHES WILL BE POSSIBLE ALONG HIGHWAY 277
BY 10 PM.
WHEN WATER COVERS THE ROAD...TURN AROUND DONT DROWN. THE LIFE YOU
SAVE MAY BE YOUR OWN. 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 3015 10048 3013 10051 2998 10062 2996 10065
2992 10067 2991 10069 3029 10069 3029 10038
$$1 follow-up statement
000
WGUS74 KEWX 180223
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
921 PM CDT FRI AUG 17 2007
TXC137-180445-
EDWARDS TX-
921 PM CDT FRI AUG 17 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT FOR
EDWARDS COUNTY...
AT 921 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT TRAINING THUNDERSTORMS PRODUCING FLASH FLOODING OVER
NORTHWESTERN EDWARDS COUNTY. THESE STORMS WILL AFFECT AREAS ALONG
HIGHWAY 277 AND ADJACENT AREAS OF HIGHWAY 55. EXPECT HEAVY RAINFALL
AMOUNTS OF 3 TO 5 INCHES TO PRODUCE FLASH FLOODING THROUGH AT LEAST
11 PM. ADDITIONAL THUNDERSTORMS OVER VAL VERDE COUNTY COULD MOVE
INTO THESE SAME AREAS LATER TONIGHT. CELL MOVEMENT IS NORTHEAST AT
15 MPH.
IT IS HARD TO RECOGNIZE THE DANGERS OF FLOODING AT NIGHT. DO NOT
DRIVE WHERE WATER COVERS THE ROAD. TWO FEET OF RUSHING WATER CAN
CARRY AWAY MOST VEHICLES...INCLUDING SUVS AND PICKUPS. TURN AROUND
DONT DROWN.
LAT...LON 3015 10048 3013 10051 2998 10062 2996 10065
2992 10067 2991 10069 3029 10069 3029 10038
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 8:27 PM CDT | Flash Flood Warning | EWX | Val Verde | 3 hr |
| Aug 17, 11:29 PM CDT | Flash Flood Warning | EWX | Val Verde | 4 hr |
| Aug 18, 12:41 AM CDT | River Flood Warning | EWX | Val Verde | 43 hr |
| Aug 18, 12:41 AM CDT | River Flood Warning | EWX | Val Verde | 57 hr |
| Aug 18, 12:41 AM CDT | River Flood Warning | EWX | Val Verde | 43 hr |
| Aug 18, 2:02 AM CDT | River Flood Warning | EWX | Val Verde | 8 hr |
| Aug 18, 2:02 AM CDT | River Flood Warning | EWX | Val Verde | 18 hr |
| Aug 18, 2:53 AM CDT | Flash Flood Warning | EWX | Val Verde | 5 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.