Alert archive / Texas / Flash Flood Warnings in 2007
Flash Flood Warning 461, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Aug 16, 2007, 3:37 PM CDT for Bexar County, Comal County, Guadalupe County, Texas. It was in force for 4 hr. 5 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 16, 2007, 3:37 PM CDT (20:37 UTC)
- Expired
- Aug 16, 2007, 7:30 PM CDT
- In force
- 4 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Bexar County, TX, Comal County, TX, Guadalupe County, TX
The radar
The Austin/San Antonio radar (KEWX), 24 km from the middle of the area, began a volume at 20:38 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 |
|---|---|---|---|
| Aug 16, 4:15 PM CDT | FLOOD | San Antonio, TX | 2 1/2 FEET OF WATER OVER HOUSMAN RD 1/4 MILE E OF BABCOCK RD |
| Aug 16, 4:37 PM CDT | FLASH FLOOD | San Antonio, TX | NWS EMPLOYEE REPORTS THERE ARE CURRENTLY 39 HIGH WATER RESCUES IN PROGRESS IN SAN ANTIONIO. |
| Aug 16, 4:53 PM CDT | HEAVY RAIN 5.65 | San Antonio, TX | USAA 5.65 INCHES RAIN 8AM-4PM. |
| Aug 16, 5:04 PM CDT | HEAVY RAIN 4.65 | Olmos Park, TX | SINCE 7AM. |
| Aug 16, 6:00 PM CDT | HEAVY RAIN 5.46 | San Antonio, TX | VANCE JACKSON AT DEZAVALA. RAINFALL TOTAL NOON-5PM. |
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 12:00Z, 8.6 hours before the alert went out and 227 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
- 32 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 594 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- -1 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 162037
FFWEWX
TXC029-091-187-170030-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
337 PM CDT THU AUG 16 2007
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
BEXAR COUNTY...
THIS INCLUDES THE CITIES OF...UNIVERSAL CITY...SAN ANTONIO...
COMAL COUNTY...
THIS INCLUDES THE CITIES OF...NEW BRAUNFELS...CANYON LAKE DAM...
GUADALUPE COUNTY...
THIS INCLUDES THE CITY OF SEGUIN...
* UNTIL 730 PM CDT
* AT 335 PM CDT...THE NATIONAL WEATHER SERVICE RADAR INDICATES
CONTINUED TROPICAL RAIN AND SHOWERS ACROSS MUCH OF BEXAR AND COMAL
COUNTIES WITH ADDITIONAL RAINS MOVING NORTHWEST INTO GUADALUPE
COUNTY. RAINFALL RATES OF UP TO 4 INCHES AN HOUR WERE INDICATED
OVER WESTERN BEXAR COUNTY BETWEEN SEA WORLD..LACKLAND AIR FORCE
BASE AND RIOMEDINA. ANOTHER BAND OF SHOWERS WITH RAINFAL RATES
BETWEEN ONE AND TWO INCHES AN HOUR WAS MOVING NORTHWEST INTO
SOUTHERN GUADALUPE COUNTY.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TIMBERWOOD
PARK...THE DOMINION...SPRING BRANCH...SMITHSON VALLEY...SHAVANO
PARK...SELMA...SCHERTZ...MCQUEENEY...MARION...LIVE OAK...LEON
SPRINGS...KINGSBURY...HOLLYWOOD PARK...HILL COUNTRY VILLAGE...
HELOTES...GERONIMO...GARDEN RIDGE...FISCHER...FAIR OAKS RANCH...
CROSS MOUNTAIN...CIBOLO AND BULVERDE
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.
WHEN WATER COVERS THE ROAD...TURN AROUND DONT DROWN. THE LIFE YOU
SAVE MAY BE YOUR OWN.
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE THROUGH FLOODED
AREAS...ESPECIALLY AT NIGHT. STAY TUNED TO NOAA WEATHER RADIO OR
LOCAL NEWS MEDIA FOR THE LATEST FLOOD INFORMATION.
LAT...LON 2912 9847 2941 9817 2939 9786 2961 9765
2973 9800 3002 9829 2981 9856 2967 9883
2923 9878
$$2 follow-up statements
000
WGUS74 KEWX 162200
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
454 PM CDT THU AUG 16 2007
TXC029-091-187-170030-
COMAL TX-GUADALUPE TX-BEXAR TX-
454 PM CDT THU AUG 16 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
BEXAR...GUADALUPE AND COMAL COUNTIES...
AT 446 PM CDT...HEAVY RAINS CONTINUES NORTH OF A LINE FROM 9 MILES
SOUTHEAST OF SEGUIN TO SELMA TO HELOTES. THE RAINS WERE NEARLY
STATIONARY. SEVERAL HIGH WATER RESCUES ARE IN PROGRESS ACROSS BEXAR
COUNTY. RAINFALL RATES OF 3 TO 5 INCHES AN HOUR WILL SPREAD NORTH
ACROSS LEON SPRINGS, BOERNE AND BULVERDE. RAINFALL AMOUNTS IN EXCESS
OF 6 INCHES HAVE FALLEN ACROSS BEXAR COUNTY FROM SAN GERONIMO TO
LACKLAND AIR FORCE BASE TO CALAVERAS LAKE.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CIBOLO...MARION...CROSS MOUNTAIN...GARDEN RIDGE...THE DOMINION...LEON
SPRINGS...MCQUEENEY...TIMBERWOOD PARK...SPRING BRANCH...SMITHSON
VALLEY...NEW BRAUNFELS...KINGSBURY...GERONIMO...FISCHER...FAIR OAKS
RANCH...CANYON LAKE DAM AND BULVERDE.
RUNOFF FROM HEAVY RAIN WILL FLOOD CREEKS, STREAMS, STREET
INTERSECTIONS, CULVERTS AND UNDERPASSES. LOW LYING PLACES THAT
NORMALLY FLOOD COULD BECOME DEATH TRAPS. DO NOT CROSS ANY FLOODED
AREA. TURN AROUND DONT DROWN.
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE THROUGH FLOODED
AREAS...ESPECIALLY AT NIGHT. STAY TUNED TO NOAA WEATHER RADIO OR
LOCAL NEWS MEDIA FOR THE LATEST FLOOD INFORMATION.
REPORT FLASH FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY
TO THE NATIONAL WEATHER SERVICE.
LAT...LON 2912 9847 2941 9817 2939 9786 2961 9765
2973 9800 3002 9829 2981 9856 2967 9883
2923 9878
$$000
WGUS74 KEWX 162347
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
641 PM CDT THU AUG 16 2007
TXC029-091-187-170030-
COMAL TX-GUADALUPE TX-BEXAR TX-
641 PM CDT THU AUG 16 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
BEXAR...GUADALUPE AND COMAL COUNTIES...
AT 634 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT TROPICAL RAINS FROM ERIN DRIFTING NORTH. THE TROPICAL RAINS
COVER MOST OF COMAL AND GUADALUPE COUNTY, AND BEXAR COUNTY NEAR
CIBOLO CREEK. ANOTHER BAND OF RAIN IS DEVELOPING OVER CENTRAL SAN
ANTONIO. ACTUAL RAINFALL REPORTS SO FAR...SAN ANTONIO INTERNATIONAL
AIRPORT 3.9 INCHES...STINSON AIRPORT 7.48 INCHES...INTERSTATE 10 AT
HUEBER ROAD 5.65 INCHES.
IT IS HARD TO RECOGNIZE THE DANGERS OF FLOODING AT NIGHT. IF FLOOD
WATERS RISE ACT QUICKLY. DO NOT STAY IN FLOOD PRONE AREAS.
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE THROUGH FLOODED
AREAS...ESPECIALLY AT NIGHT. STAY TUNED TO NOAA WEATHER RADIO OR
LOCAL NEWS MEDIA FOR THE LATEST FLOOD INFORMATION.
REPORT FLASH FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY
TO THE NATIONAL WEATHER SERVICE.
LAT...LON 2912 9847 2941 9817 2939 9786 2961 9765
2973 9800 3002 9829 2981 9856 2967 9883
2923 9878
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 9:49 PM CDT | Wind Advisory | EWX | Atascosa, Bexar, DeWitt, Dimmit, Frio, Gonzales and 6 more | 10 hr |
| Aug 16, 5:32 AM CDT | Flash Flood Warning | EWX | Lavaca | 3 hr |
| Aug 16, 7:02 AM CDT | Flash Flood Warning | EWX | Bastrop, Lee | 3 hr |
| Aug 16, 8:24 AM CDT | Flash Flood Warning | EWX | Lavaca | 3 hr |
| Aug 16, 11:54 AM CDT | Flash Flood Warning | EWX | Bexar, Wilson | 4 hr |
| Aug 16, 12:25 PM CDT | Flash Flood Warning | EWX | DeWitt, Karnes | 3 hr |
| Aug 16, 2:10 PM CDT | Flash Flood Warning | EWX | Medina | 3 hr |
| Aug 16, 3:56 PM CDT | Flash Flood Warning | EWX | Bandera, Medina | 4 hr |
| Aug 16, 4:20 PM CDT | Flash Flood Warning | EWX | DeWitt, Gonzales, Lavaca | 3 hr |
| Aug 16, 4:20 PM CDT | River Flood Warning | EWX | Bexar | 4 days |
| Aug 16, 4:20 PM CDT | River Flood Warning | EWX | Bexar, Wilson | 4 days |
| Aug 16, 4:20 PM CDT | River Flood Warning | EWX | Karnes | 6 days |
| Aug 16, 4:20 PM CDT | River Flood Warning | EWX | Karnes | 3 days |
| Aug 16, 4:33 PM CDT | Flash Flood Warning | EWX | Gillespie, Kendall, Kerr | 6 hr |
| Aug 16, 4:39 PM CDT | Flash Flood Warning | EWX | Medina | 6 hr |
| Aug 16, 5:11 PM CDT | River Flood Warning | EWX | Medina | 17 hr |
| Aug 16, 5:41 PM CDT | Tornado Warning | EWX | Kendall | 34 min |
| Aug 16, 5:48 PM CDT | Flash Flood Warning | EWX | Blanco, Hays | 6 hr |
| Aug 16, 5:58 PM CDT | Flash Flood Warning | EWX | Real, Uvalde | 6 hr |
| Aug 16, 6:06 PM CDT | River Flood Warning | EWX | Bexar | 4 hr |
| Aug 16, 6:58 PM CDT | Flash Flood Warning | EWX | Bexar, Comal, Guadalupe | 6 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.