Alert archive / Texas / Flash Flood Warnings in 2007
Flash Flood Warning 237, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jun 27, 2007, 7:15 AM CDT for Williamson County, Texas. It was in force for 5 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
- Jun 27, 2007, 7:15 AM CDT (12:15 UTC)
- Expired
- Jun 27, 2007, 12:15 PM CDT
- In force
- 5 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Williamson County, TX
The radar
The Ft Hood radar (KGRK), 22 km from the middle of the area, began a volume at 12:17 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
Fort Worth, TX (KFWD), launched 12:00Z, 0.3 hours before the alert went out and 245 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 744 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -73 m²/s²
- 0-3 km storm-relative helicity
- 53 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 271218
FFWEWX
TXC491-271715-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
715 AM CDT WED JUN 27 2007
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
WILLIAMSON COUNTY IN SOUTH CENTRAL TEXAS...
THIS INCLUDES THE CITIES OF...TAYLOR...SERENADA...ROUND ROCK...
GRANGER...GEORGETOWN...CEDAR PARK...ANDERSON MILL...
* UNTIL 1215 PM CDT
* AT 715 AM CDT...NATIONAL WEATHER SERVICE RADAR SHOWED RAIN FROM
SHOWERS AND THUNDERSTORMS CONTINUING OVER WILLIAMSON COUNTY.
RAIN...HEAVY AT TIMES...IS EXPECTED TO CONTINUE THIS MORNING
FROM SHOWERS AND THUNDERSTORMS. THIS WILL CAUSE FLOODING AT LOW
WATER CROSSINGS...LOW LYING AND FLOOD PRONE AREAS...AND ALONG AND
NEAR RIVERS...CREEKS AND STREAMS. THESE AREAS HAVE ALL READY
RECEIVED VERY HEAVY RAINS THE PAST SEVERAL HOURS...AND
ADDITIONAL RAIN WILL KEEP THE POTENTIAL FOR SERIOUS FLOODING IN
THE NEXT FEW HOURS.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LIBERTY
HILL...WEIR...JARRELL...GRANGER DAM...GEORGETOWN DAM...FLORENCE...
BARTLETT AND ANDICE
WHEN WATER COVERS THE ROAD...TURN AROUND DONT DROWN. THE LIFE YOU
SAVE MAY BE YOUR OWN.
LAT...LON 3090 9771 3075 9728 3047 9716 3042 9734
3049 9749 3048 9754 3051 9760 3045 9778
3049 9784 3063 9794 3064 9801 3062 9802
3064 9804 3078 9797 3092 9783
$$3 follow-up statements
000
WGUS74 KEWX 271238
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
734 AM CDT WED JUN 27 2007
TXC491-271715-
WILLIAMSON TX-
734 AM CDT WED JUN 27 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1215 PM CDT FOR
WILLIAMSON COUNTY...
AT 734 AM CDT...RADAR CONTINUED TO SHOW RAIN...HEAVY AT TIMES...OVER
WILLIAMSON COUNTY...FROM SHOWERS AND THUNDERSTORMS. THESE
RAINS...HEAVY AT TIMES...WILL CONTINUE THE NEXT FEW HOURS...AND
CAUSE FLOODING OVER WILLIAMSON COUNTY. ADDITIONAL RAINFALL AMOUNTS
THIS MORNING OF 1 TO 3 INCHES IS POSSIBLE.
FLOODING AT LOW WATER CROSSINGS...LOW LYING AND FLOOD PRONE
AREAS...AND ALONG AND NEAR RIVERS...CREEKS AND STREAMS WILL
CONTINUE.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LIBERTY
HILL...WEIR...SERENADA...JARRELL...GRANGER DAM...GRANGER...GEORGETOWN
DAM...GEORGETOWN...FLORENCE...BARTLETT AND ANDICE
LAT...LON 3090 9771 3075 9728 3047 9716 3042 9734
3049 9749 3048 9754 3051 9760 3045 9778
3049 9784 3063 9794 3064 9801 3062 9802
3064 9804 3078 9797 3092 9783
$$000
WGUS74 KEWX 271352
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
847 AM CDT WED JUN 27 2007
TXC491-271715-
WILLIAMSON TX-
847 AM CDT WED JUN 27 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1215 PM CDT FOR
WILLIAMSON COUNTY...
AT 841 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT LIGHT TO MODERATE RAINS ACROSS THE AREA. RAINFALL RATES WERE
LESS THAN ONE QUARTER INCH PER HOUR. THIS ADDITIONAL RAIN WILL
AGGRAVATE THE FLOODING PROBLEMS ACROSS THE AREA. NUMEROUS ROADS
REMAIN CLOSED ACROSS THE AREA. NUMEROUS STREAMS AND RIVERS REMAIN IN
FLOOD.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LIBERTY
HILL...WEIR...SERENADA...JARRELL...GRANGER DAM...GRANGER...GEORGETOWN
DAM...GEORGETOWN...FLORENCE...BARTLETT AND ANDICE
WHEN WATER COVERS THE ROAD...TURN AROUND DONT DROWN. THE LIFE YOU
SAVE MAY BE YOUR OWN.
LAT...LON 3090 9771 3075 9728 3047 9716 3042 9734
3049 9749 3048 9754 3051 9760 3045 9778
3049 9784 3063 9794 3064 9801 3062 9802
3064 9804 3078 9797 3092 9783
$$000
WGUS74 KEWX 271618
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1117 AM CDT WED JUN 27 2007
TXC491-271715-
WILLIAMSON TX-
1117 AM CDT WED JUN 27 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1215 PM CDT FOR
WILLIAMSON COUNTY...
AT 1113 AM CDT...NATIONAL WEATHER SERVICE RADAR SHOWED LITTLE OR NO
RAINS ACROSS WILLIAMSON COUNTY. HOWEVER...FLASH FLOODING WILL
CONTINUE FROM EARLIER HEAVY RAINS. NUMEROUS ROADS REMAIN CLOSED.
NUMEROUS RIVERS AND STREAMS REMAIN IN FLOOD.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LIBERTY
HILL...WEIR...SERENADA...JARRELL...GRANGER DAM...GRANGER...GEORGETOWN
DAM...GEORGETOWN...FLORENCE...BARTLETT AND ANDICE
LAT...LON 3090 9771 3075 9728 3047 9716 3042 9734
3049 9749 3048 9754 3051 9760 3045 9778
3049 9784 3063 9794 3064 9801 3062 9802
3064 9804 3078 9797 3092 9783
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 26, 9:15 PM CDT | Flash Flood Warning | EWX | Williamson | 3 hr |
| Jun 26, 9:51 PM CDT | Flash Flood Warning | EWX | Burnet | 3 hr |
| Jun 26, 10:22 PM CDT | Flash Flood Warning | EWX | Blanco | 3 hr |
| Jun 26, 10:41 PM CDT | Severe Thunderstorm Warning | EWX | Burnet | 34 min |
| Jun 26, 11:52 PM CDT | Flash Flood Warning | EWX | Williamson | 4 hr |
| Jun 26, 11:55 PM CDT | Flash Flood Warning | EWX | Burnet | 5 hr |
| Jun 27, 12:33 AM CDT | Flash Flood Warning | EWX | Llano | 4 hr |
| Jun 27, 1:32 AM CDT | Flash Flood Warning | EWX | Blanco | 3 hr |
| Jun 27, 3:38 AM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 82 min |
| Jun 27, 4:01 AM CDT | Flash Flood Warning | EWX | Blanco, Burnet, Llano | 4 hr |
| Jun 27, 4:29 AM CDT | Flash Flood Warning | EWX | Williamson | 6 hr |
| Jun 27, 4:36 AM CDT | Flash Flood Warning | EWX | Gillespie | 4 hr |
| Jun 27, 4:53 AM CDT | Severe Thunderstorm Warning | EWX | Kinney, Val Verde | 82 min |
| Jun 27, 5:21 AM CDT | Severe Thunderstorm Warning | EWX | Maverick | 69 min |
| Jun 27, 6:00 AM CDT | Flash Flood Warning | EWX | Bandera, Kendall, Kerr | 4 hr |
| Jun 27, 6:09 AM CDT | Flash Flood Warning | EWX | Blanco, Burnet, Gillespie, Llano | 6 hr |
| Jun 27, 6:35 AM CDT | Flash Flood Warning | EWX | Medina, Uvalde | 4 hr |
| Jun 27, 6:39 AM CDT | Flash Flood Warning | EWX | Edwards, Real | 4 hr |
| Jun 27, 12:14 PM CDT | Flash Flood Warning | EWX | Blanco, Burnet, Gillespie, Llano, Travis, Williamson | 2 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.