Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 174, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Oct 17, 1998, 4:29 PM CDT for Bastrop County, Texas. It was in force for 6 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, 4:29 PM CDT (21:29 UTC)
- Expired
- Oct 17, 1998, 10:25 PM CDT
- In force
- 6 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Bastrop County, TX
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 9.5 hours before the alert went out and 264 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
- 2241 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 529 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 135 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 4.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 172131 FFWSAT TXC021-055-187-180325- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 429 PM CDT SAT OCT 17 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR... BASTROP IN TEXAS CALDWELL IN TEXAS GUADALUPE IN TEXAS * UNTIL 1025 PM CDT * AT AT 430 PM CDT...SHOWERS AND THUNDERSTORMS WITH HEAVY RAINS OF 1 TO 3 INCHES PER HOUR... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SHOWERS AND THUNDERSTORM WITH VERY HEAVY RAIN OVER MUCH OF SOUTH CENTRAL TEXAS FROM SAN ANTONIO TO AUSTIN EASTWARD... MOVING MOVING SLOWLY NORTHEASTWARD. THIS RAIN IS FALLING ON GROUND ALREADY SATURDAY WITH 5 TO 10 INCHES OF RAIN. * VERY DANGEROUS WIDESPREAD FLOODING WITH MANY ROADS FLOODED AND CLOSED. DO NOT TRAVEL... DON'T 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. STAY TUNED TO NOAA WEATHER RAD0IO...LOCAL RADIO AND TELEVISION STATIONS OR CABLE TV FOR THE LATEST UPDATES CONCERNING THIS DEVELOPING WEATHER SITUATION.
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Austin/San Antonio, TX wrote its last area forecast discussion before this flash flood warning went out at Oct 17, 2:45 PM CDT, 1 hour 44 minutes earlier.
Area forecast discussion, Oct 17, 2:45 PM CDT, 1 hour 44 minutes before
COASTAL BEND FORECAST DISCUSSION NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 245 PM CDT SAT OCT 17 1998 THE BIG TIME CONVECTION DEVELOPED NORTH OF CWA IN RRQ OF JET THAT ALSO IS BEING FEED TROPICAL MOISTURE FROM EASTERN PAC TROPICAL SYSTEM. MOST OF CWA HAS BEEN IN AREA OF WEAK ISENT LIFT AND MOISTURE CONVERGENCE THAT IS SETTING OFF WIDELY SCATTERED SHRA/TSRA. IT LOOKS LIKE THE FRONT WILL ONLY MOVE TO JUST NORTH OF CWA AS SHORT WAVE RIDGE DEVELOPS OVER WESTERN TX AHEAD SHORT WAVE TROF MOVING INTO BAJA. LOOKS LIKE FRONT WILL MOVE THROUGH LATE MONDAY OR MONDAY NIGHT. THIS LEAVES CWA IN INTERESTING SITUATION...WITH PLENTY OF MOISTURE...THE FRONT...HIGH THETA-E AIR...ISENT LIFT...HOWEVER AT LEAST THOUGH SUNDAY THE BEST OF ALL OF THE ABOVE REMAIN OVER HILL COUNTRY AND IN FAR WESTERN CWA. WILL HOLD ON ANY FFA FOR NOW AND SEE HOW THE ATMOSPHERE READJUSTS AFTER THE CONVECTION TO NORTH. MY FEELING NOW IS THE NORTHERN TIER OF COUNTIES MIGHT NEED AN FFA IF THINGS REDEVELOP OVER HILL COUNTRY AND SPREAD SOUTH TONIGHT. WITH ALL OF THIS SAID...MY MODEL OF CHOICE CONTINUES TO BE THE AVN BUT WILL BLEND IN SOME ISENT DATA FROM ETA EVEN THOUGH WE HAVE SOME DIABATIC AFFECTS GOING ON. WILL KEEP SKIES MOCLD THROUGH PERIOD AND WILL TREND TEMPS AND POPS TOWARDS FAN GUIDANCE. HOWEVER FAN MAY BE A BIT TOO LOW FOR MINS AND WILL BUMP THOSE UP. CRP TW 073/081 071/079 066 5644 NGP 076/082 074/080 067 5644 ALI 073/082 072B/080 066 5644 VCT TW 072/081 069/080 067 5644 LRD TW 072/080 068/080 067 5754 78
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 17, 6:28 AM CDT | Flash Flood Warning | EWX | Bexar, Blanco, Comal | 3 hr |
| 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, 4:45 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.