Alert archive / Texas / Flash Flood Warnings in 1999
Flash Flood Warning 41, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at May 28, 1999, 12:46 PM CDT for Burnet County, Llano County, Texas. It was in force for 119 min. 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 28, 1999, 12:46 PM CDT (17:46 UTC)
- Expired
- May 28, 1999, 2:45 PM CDT
- In force
- 119 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Burnet County, TX, Llano County, TX
The radar
The Ft Hood radar (KGRK), 100 km from the middle of the area, began a volume at 17:47 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, 5.8 hours before the alert went out and 256 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
- 334 J/kg
- Mixed-layer CIN
- -47 J/kg
- Mixed-layer LCL
- 613 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 134 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 281746 FFWSAT TXC053-299-281945- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1246 PM CDT FRI MAY 28 1999 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR... LLANO COUNTY IN TEXAS BURNET COUNTY IN TEXAS * UNTIL 245 PM CDT * AT 1240 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A CLUSTER OF THUNDERSTORMS WITH VERY HEAVY RAIN... MOVING EAST AT 20 MPH. * THE AREA OF THUNDERSTORMS WILL PRODUCE ISOLATED RAINFALL AMOUNTS OVER 2 INCHES OVER SANDIES CREEK BASIN BY 130 PM. WITH PREVIOUS RAINFALL AMOUNTS IN THE 1 TO 2 INCH RANGE IN THE PAST FEW HOURS...THIS ADDITIONAL RAINFALL WILL LIKELY PRODUCE FLASH FLOODING. MO ----LLANO AND BURNET COUNTIES--- FAST RISES DOWN MINOR STREAMS AND CREEKS ACROSS LLANO AND BURNET COUNTIES WILL FLOOD SECONDARY ROADS...LOW BRIDGES AND CROSSINGS. MOTORISTS SHOULD BE AWARE THAT WATER IN THESHE CROSSINGS CAN RISE VERY QUICKLY TO A LEVEL THAT WILL STALL AUTOS AND FLOAT THEM DOWNSTREAM.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 1:42 AM CDT | Flash Flood Warning | EWX | Fayette | 3 hr |
| May 28, 3:56 AM CDT | Flash Flood Warning | EWX | Lavaca | 3 hr |
| May 28, 4:50 AM CDT | Flash Flood Warning | EWX | Bandera | 2 hr |
| May 28, 4:50 AM CDT | Severe Thunderstorm Warning | EWX | Bandera | 2 hr |
| May 28, 9:20 AM CDT | Flash Flood Warning | EWX | Travis, Williamson | 70 min |
| May 28, 9:20 AM CDT | Severe Thunderstorm Warning | EWX | Travis, Williamson | 70 min |
| May 28, 10:00 AM CDT | Flash Flood Warning | EWX | Burnet, Llano | 2 hr |
| May 28, 2:34 PM CDT | Severe Thunderstorm Warning | EWX | Comal, Hays | 61 min |
| May 28, 4:33 PM CDT | Severe Thunderstorm Warning | EWX | Fayette, Lee | 62 min |
| May 28, 5:25 PM CDT | Severe Thunderstorm Warning | EWX | DeWitt | 65 min |
| May 28, 5:51 PM CDT | Severe Thunderstorm Warning | EWX | Lavaca | 39 min |
Nearby
Flash Flood Warnings in Texas, 1999Every flash flood warning in 1999
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.