Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 166, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Oct 17, 1998, 6:28 AM CDT for Bexar County, Blanco County, Comal 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
- Oct 17, 1998, 6:28 AM CDT (11:28 UTC)
- Expired
- Oct 17, 1998, 9:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Bexar County, TX, Blanco County, TX, Comal County, TX
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 11.5 hours before the alert went out and 242 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
- 989 J/kg
- Mixed-layer CIN
- -96 J/kg
- Mixed-layer LCL
- 1132 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 171 m²/s²
- 0-3 km storm-relative helicity
- 265 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 3.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 171129 FFWSAT TXC029-031-091-171400- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 628 AM CDT SAT OCT 17 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR... BLANCO IN TEXAS COMAL IN TEXAS BEXAR IN TEXAS * UNTIL 900 AM CDT * AT 630 AM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SHOWERS AND THUNDERSTORMS WITH VERY HEAVY RAIN OVER BEXAR... COMAL AND BLANCO COUNTIES...MOVING TO THE NORTH AT 30 MPH. RAINFALL RATES ARE NEAR TWO INCHES PER HOUR ACROSS THESE COUNTIES. *RUNOFF WILL BE RAPID...FLOODING LOW LYING AREAS...STREETS... STREAMS AND CREEKS. DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD! AREA RESIDENTS SHOULD MONITOR FLOOD CONDITIONS... AND BE PREPARED TO MOVE TO HIGHER GROUND... SHOULD FLOOD WATERS THREATEN. IF FLASH FLOODING IS OBSERVED... ACT QUICKLY. MOVE TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT~ STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 17, 8:08 AM CDT | Flash Flood Warning | EWX | Atascosa, Frio, Medina | 2 hr |
| Oct 17, 8:27 AM CDT | Flash Flood Warning | EWX | Bexar, Comal, Hays | 4 hr |
| Oct 17, 8:27 AM CDT | Flash Flood Warning | EWX | Travis, Williamson | 4 hr |
| Oct 17, 10:41 AM CDT | Flash Flood Warning | EWX | Bastrop, Caldwell, Guadalupe | 6 hr |
| Oct 17, 12:19 PM CDT | Flash Flood Warning | EWX | Burnet, Travis, Williamson | 6 hr |
| Oct 17, 12:19 PM CDT | Flash Flood Warning | EWX | Bexar, Blanco, Comal, Hays, Kendall | 6 hr |
| Oct 17, 12:37 PM CDT | Tornado Warning | EWX | Caldwell | 63 min |
| Oct 17, 1:15 PM CDT | Tornado Warning | EWX | Bastrop, Lee | 60 min |
| Oct 17, 4:29 PM CDT | Flash Flood Warning | EWX | Caldwell, Guadalupe | 6 hr |
| Oct 17, 4:29 PM CDT | Flash Flood Warning | EWX | Bastrop | 6 hr |
| Oct 17, 4:45 PM CDT | Flash Flood Warning | EWX | Fayette, Gonzales | 6 hr |
| Oct 17, 5:57 PM CDT | Flash Flood Warning | EWX | Lavaca | 6 hr |
| Oct 17, 6:22 PM CDT | Flash Flood Warning | EWX | Lee | 5 hr |
| Oct 17, 6:31 PM CDT | Flash Flood Warning | EWX | Blanco, Comal, Hays, Travis | 5 hr |
| Oct 17, 6:31 PM CDT | Flash Flood Warning | EWX | Burnet, Williamson | 5 hr |
| Oct 17, 6:31 PM CDT | Flash Flood Warning | EWX | Bexar, Kendall | 5 hr |
Nearby
Flash Flood Warnings in Texas, 1998Every flash flood warning in 1998
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.