Alert archive / Texas / Flash Flood Warnings in 2007
Flash Flood Warning 113, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at May 1, 2007, 5:34 PM CDT for Llano 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
- May 1, 2007, 5:34 PM CDT (22:34 UTC)
- Expired
- May 1, 2007, 8:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Llano County, TX
The radar
The Ft Hood radar (KGRK), 124 km from the middle of the area, began a volume at 22:35 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 12:00Z, 10.6 hours before the alert went out and 255 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
- 2016 J/kg
- Mixed-layer CIN
- -115 J/kg
- Mixed-layer LCL
- 704 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 148 m²/s²
- 0-3 km storm-relative helicity
- 207 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS54 KEWX 012235
FFWEWX
TXC299-020130-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
534 PM CDT TUE MAY 1 2007
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
LLANO COUNTY IN SOUTH CENTRAL TEXAS...
THIS INCLUDES THE CITIES OF...LLANO...KINGSLAND...BUCHANAN DAM...
* UNTIL 830 PM CDT
* AT 530 PM CDT...THE NATIONAL WEATHER SERVICE HAS DETERMINED THAT
RAINFALL ESTIMATES FROM DOPPLER RADAR INDICATE FLASH FLOODING FROM
A THUNDERSTORM OVER THE WARNED AREA.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TOW
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 EVER DRIVE THROUGH
FLOODED AREAS...ESPECIALLY AT NIGHT. STAY TUNED TO NOAA WEATHER
RADIO OR LOCAL NEWS MEDIA FOR THE LATEST FLOOD INFORMATION.
LAT...LON 3089 9847 3084 9841 3084 9838 3080 9843
3077 9843 3075 9837 3067 9844 3058 9841
3057 9835 3051 9835 3052 9896 3092 9896
3092 9844
$$2 follow-up statements
000
WGUS74 KEWX 012257
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
553 PM CDT TUE MAY 1 2007
TXC299-020130-
LLANO TX-
553 PM CDT TUE MAY 1 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR LLANO
COUNTY...
AT 549 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER THE NORTHERN HALF
OF LLANO COUNTY. THE HEAVIEST RAINS WERE OCCURRING ALONG AND NORTH
OF HIGHWAY 29. MOVEMENT WAS SOUTH AT 15 TO 20 MPH. RAINFALL RATES
WERE ESTIMATED AT 1 TO 3 INCHES AN HOUR.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TOW...SUNRISE
BEACH VILLAGE...KINGSLAND...HORSESHOE BAY...CASTELL...BUCHANAN DAM
AND LLANO
WHEN WATER COVERS THE ROAD...TURN AROUND DONT DROWN. THE LIFE YOU
SAVE MAY BE YOUR OWN.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT TUESDAY EVENING
FOR SOUTH CENTRAL TEXAS.
LAT...LON 3089 9847 3084 9841 3084 9838 3080 9843
3077 9843 3075 9837 3067 9844 3058 9841
3057 9835 3051 9835 3052 9896 3092 9896
3092 9844
$$000
WGUS74 KEWX 012340
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
637 PM CDT TUE MAY 1 2007
TXC299-020130-
LLANO TX-
637 PM CDT TUE MAY 1 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR LLANO
COUNTY...
AT 631 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A LARGE THUNDERSTORM PRODUCING VERY HEAVY RAIN OVER THE
THE WESTERN HALF OF LLANO COUNTY. RAINFALL RATES WERE ESTIMATED AT
1 TO 3 INCHES AN HOUR. MOVEMENT WAS SOUTH AT 10 TO 15 MPH.
LOCATIONS IN THE WARNING INCLUDE LLANO...CASTELL AND VALLEY SPRING.
WHEN WATER COVERS THE ROAD...TURN AROUND DONT DROWN. THE LIFE YOU
SAVE MAY BE YOUR OWN.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT TUESDAY EVENING
FOR SOUTH CENTRAL TEXAS.
LAT...LON 3080 9865 3074 9864 3067 9865 3062 9863
3058 9861 3057 9862 3056 9860 3054 9862
3055 9860 3052 9858 3052 9896 3092 9896
3091 9869
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 7:14 PM CDT | Severe Thunderstorm Warning | EWX | DeWitt | 16 min |
| May 1, 5:07 PM CDT | Severe Thunderstorm Warning | EWX | Llano | 53 min |
| May 1, 5:53 PM CDT | Severe Thunderstorm Warning | EWX | Llano | 37 min |
| May 1, 6:19 PM CDT | Severe Thunderstorm Warning | EWX | Williamson | 26 min |
| May 1, 6:27 PM CDT | Severe Thunderstorm Warning | EWX | Llano | 52 min |
| May 1, 6:52 PM CDT | Severe Thunderstorm Warning | EWX | Gillespie | 53 min |
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.