Alert archive / Texas / Flash Flood Warnings in 2007
Flash Flood Warning 3, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Sep 4, 2007, 8:18 PM CDT for Atascosa County, Bexar County, Texas. It was in force for 117 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 4, 2007, 8:18 PM CDT (01:18 UTC)
- Expired
- Sep 4, 2007, 10:15 PM CDT
- In force
- 117 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
- Flood severity
- None
Counties Atascosa County, TX, Bexar County, TX
The radar
The Austin/San Antonio radar (KEWX), 50 km from the middle of the area, began a volume at 01:21 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
Corpus Christi, TX (KCRP), launched 00:00Z, 1.3 hours before the alert went out and 216 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
- 1967 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 973 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS54 KEWX 050121
FFWEWX
TXC013-029-050315-
/X.NEW.KEWX.FF.W.0003.070905T0118Z-070905T0315Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
818 PM CDT TUE SEP 4 2007
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
ATASCOSA COUNTY...
BEXAR COUNTY...
* UNTIL 1015 PM CDT.
* AT 812 PM CDT...THE NATIONAL WEATHER SERVICE HAS DETERMINED THAT
RAINFALL ESTIMATES FROM DOPPLER RADAR INDICATE FLASH FLOODING FROM
SHOWERS AND THUNDERSTORMS NEAR CHARLOTTE TO SOMERSET.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
LACOSTE...ELMENDORF...CALAVERAS LAKE...LACKLAND AFB...SEA WORLD...
CHINA GROVE...SAN ANTONIO...LEON VALLEY...OLMOS PARK...KIRBY...
TERRELL HILLS...ALAMO HEIGHTS...ST. HEDWIG...HELOTES...WINDCREST...
SHAVANO PARK...HILL COUNTRY VILLAGE...LIVE OAK...CROSS MOUNTAIN...
HOLLYWOOD PARK...UNIVERSAL CITY...SCHERTZ...THE DOMINION...LEON
SPRINGS...SELMA...FAIR OAKS RANCH AND TIMBERWOOD PARK.
SHOWERS AND THUNDERSTORMS TRAINING NORTHWARD FROM CHARLOTTE TO
SOMERSET MOVING NORTH AT 15 MPH WILL PRODUCE HEAVY RAINFALL AMOUNTS
OF ONE TO THREE INCHES AND SPREAD NORTHEAST INTO THE SAN ANTONIO
AREA OVER THE NEXT HOUR.
IT IS HARD TO RECOGNIZE THE DANGERS OF FLOODING AT NIGHT. IF FLOOD
WATERS RISE ACT QUICKLY. DO NOT STAY IN FLOOD PRONE AREAS. REMEMBER
TURN AROUND DONT DROWN.
LAT...LON 2972 9844 2976 9841 2973 9836 2967 9839
2960 9834 2956 9829 2957 9824 2946 9813
2912 9842 2878 9811 2861 9834 2864 9835
2864 9880 2970 9881 2976 9866 2974 9862
2977 9856
TIME...MOT...LOC 0118Z 197DEG 15KT 2926 9867
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 4, 10:38 PM CDT | Flash Flood Warning | EWX | Bexar | 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.