Alert archive / Texas / Flash Flood Warnings in 2008
Flash Flood Warning 9, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jun 29, 2008, 4:55 AM CDT for Val Verde County, Texas. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 29, 2008, 4:55 AM CDT (09:55 UTC)
- Expired
- Jun 29, 2008, 7:00 AM CDT
- In force
- 2 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Flood severity
- None
County Val Verde County, TX
The radar
The Laughlin AFB radar (KDFX), 139 km from the middle of the area, began a volume at 09:59 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, 9.9 hours before the alert went out and 99 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
- 476 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 2521 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -34 m²/s²
- 0-3 km storm-relative helicity
- 51 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 290957
FFWEWX
TXC465-291300-
/O.NEW.KEWX.FF.W.0009.080629T0955Z-080629T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
455 AM CDT SUN JUN 29 2008
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
VAL VERDE COUNTY...
* UNTIL 800 AM CDT.
* AT 450 AM CDT...THE NATIONAL WEATHER SERVICE HAS DETERMINED THAT
RAINFALL ESTIMATES FROM DOPPLER RADAR INDICATE FLASH FLOODING FROM
A THUNDERSTORM 6 MILES NORTHWEST OF JUNO...MOVING SOUTHWEST AT 3
MPH.
* OTHER LOCATIONS IN THE WARNING AREA INCLUDE COMSTOCK.
IN THREE HOURS AN ESTIMATED 5 INCHES OF RAIN HAS FALLEN OVER THE
AREA OF JOHNSON DRAW BETWEEN STATE HIGHWAY 163 AND FARM ROAD 1024.
REPORT FLASH FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY.
LAT...LON 3030 10142 3029 10141 3029 10126 3030 10125
3028 10091 2955 10104 2991 10144 3030 10146
TIME...MOT...LOC 0955Z 037DEG 3KT 3019 10120
$$3 follow-up statements
000
WGUS74 KEWX 291030
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
526 AM CDT SUN JUN 29 2008
TXC465-291300-
/O.CON.KEWX.FF.W.0009.000000T0000Z-080629T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VAL VERDE TX-
526 AM CDT SUN JUN 29 2008
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 AM CDT FOR VAL
VERDE COUNTY...
AT 520 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A THUNDERSTORM PRODUCING FLASH FLOODING. THIS STORM WAS
LOCATED 6 MILES WEST OF JUNO...MOVING SOUTHWEST AT 3 MPH.
OTHER LOCATIONS IN THE WARNING AREA INCLUDE COMSTOCK. OVER 5 INCHES
OF RAIN HAS FALLEN IN AN AREA FROM 5 MILES NORTHWEST OF JUNO TO 10
MILES NORTHWEST OF JUNO. THIS ENCOMPASSES JOHNSON DRAW, FARM ROAD
1024 AND LOCAL ROADS WEST OF STATE HIGHWAY 163.
IT IS HARD TO RECOGNIZE THE DANGERS OF FLOODING AT NIGHT. IF FLOOD
WATERS RISE ACT QUICKLY. DO NOT STAY IN FLOOD PRONE AREAS.
REPORT FLASH FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY.
LAT...LON 3030 10142 3029 10141 3029 10126 3030 10125
3028 10091 2955 10104 2991 10144 3030 10146
TIME...MOT...LOC 1026Z 037DEG 3KT 3017 10122
$$000
WGUS74 KEWX 291126
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
623 AM CDT SUN JUN 29 2008
TXC465-291300-
/O.CON.KEWX.FF.W.0009.000000T0000Z-080629T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VAL VERDE TX-
623 AM CDT SUN JUN 29 2008
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 AM CDT FOR VAL
VERDE COUNTY...
AT 615 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A THUNDERSTORM PRODUCING FLASH FLOODING. THIS STORM WAS
LOCATED 17 MILES NORTHWEST OF JUNO...MOVING NORTHWEST AT 6 MPH. AN
ESTIMATED 3 TO 5 INCHES OF RAIN HAS FALLEN IN AN AREA BETWEEN FARM
ROAD 1024, THE CITY OF JUNO AND STATE HIGHWAY 163. THE HEAVY RAINS
FELL IN 3 HOURS. LIGHTER RAINS OVER THE AREAS WILL RUNOFF
PROLONGING FLOODED LOW WATER CROSSINGS.
WHEN WATER COVERS THE ROAD...TURN AROUND DONT DROWN. THE LIFE YOU
SAVE MAY BE YOUR OWN.
REPORT FLASH FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY.
LAT...LON 3030 10142 3029 10141 3029 10126 3030 10125
3028 10091 2955 10104 2991 10144 3030 10146
TIME...MOT...LOC 1123Z 148DEG 5KT 3030 10137
$$000
WGUS74 KEWX 291200
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
658 AM CDT SUN JUN 29 2008
TXC465-291208-
/O.CAN.KEWX.FF.W.0009.000000T0000Z-080629T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VAL VERDE TX-
658 AM CDT SUN JUN 29 2008
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR VAL VERDE COUNTY...
LAT...LON 3030 10142 3029 10141 3029 10126 3030 10125
3028 10091 2955 10104 2991 10144 3030 10146
TIME...MOT...LOC 1158Z 148DEG 5KT 3034 10140
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 3:55 AM CDT | Areal Flood Advisory | EWX | Val Verde | 2 hr |
| Jun 29, 3:43 PM CDT | River Flood Warning | EWX | Val Verde | 5 hr |
| Jun 29, 3:43 PM CDT | River Flood Warning | EWX | Val Verde | 5 hr |
Nearby
Flash Flood Warnings in Texas, 2008Every flash flood warning in 2008
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.