Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 145, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Sep 11, 1998, 11:16 AM CDT for Comal County, Texas. It was in force for 104 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
- Sep 11, 1998, 11:16 AM CDT (16:16 UTC)
- Expired
- Sep 11, 1998, 1:00 PM CDT
- In force
- 104 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Comal County, TX
The nearest sounding before it
Corpus Christi, TX (KNGP), launched 12:00Z, 4.3 hours before the alert went out and 248 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
- 1491 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 111618 FFWSAT TXC091-111800- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1116 AM CDT FRI SEP 11 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR... COMAL COUNTY IN SOUTH CENTRAL TEXAS * UNTIL 100 PM CDT * FLASH FLOODING EXPECTED AROUND- OVER PORTIONS OF COMAL COUNTY * VERY HEAVY RAINS ARE DEVELOPING OVER COMAL COUNTY AND WILL CONTINUE THE NEXT 1 TO 2 HOURS. IF YOU ARE IN THESE AREAS... MOVE TO HIGHER GROUND. DO NOT DRIVE THROUGH WATER COVERING 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.
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.
In the hours before
Special weather statement, Sep 11, 5:35 AM CDT, 5 hours 41 minutes before
TXZ171>173-183>194-202>209-217>225-228-111300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 535 AM CDT FRI SEP 11 1998 ...TORNADO WATCH IN EFFECT FOR THE EASTERN SECTIONS OF SOUTH CENTRAL TEXAS UNTIL 1 PM... ...FLASH FLOOD WATCH IN EFFECT FOR SOUTH CENTRAL TEXAS AND THE HILL COUNTRY THROUGH TODAY... ...FLASH FLOOD WARNING IN EFFECT FOR LAVACA...DEWITT...KARNES AND GONZALES COUNTIES UNTIL 10 AM CDT... ...WIND ADVISORY IN EFFECT FOR HILL COUNTRY AND MUCH OF SOUTH CENTRAL TEXAS THROUGH TODAY... TROPICAL STORM FRANCES HAS MOVED INLAND ALONG THE MIDDLE TEXAS COAST AND WAS MOVING NORTHWEST NEAR 13 MPH INTO SOUTH CENTRAL TEXAS THIS MORNING. ALONG WITH THE POTENTIAL FOR HEAVY RAIN RAIN AND FLOODING ...THERE EXISTS THE POTENTIAL FOR TORNADOES IN THE VERY MOIST AND UNSTABLE TROPICAL AIR. IN ADDITION...NORTH AND NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS TO NEAR 40 MPH ARE EXPECTED WITH FRANCES AS SHE MOVES INLAND TODAY. THEREFORE WIND ADVISORIES ARE IN EFFECT FOR MUCH OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY. WIDESPREAD SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN OVER MUCH OF SOUTH CENTRAL TEXAS...SPREADING WESTWARD INTO THE EASTERN HILL COUNTRY. RAINFALL RATES OF 1 TO 2 INCHES PER HOUR WERE ESTIMATED BY RADAR. RAINFALL TOTALS OF 2 TO 6 INCHES WERE COMMON OVER THE SOUTHEASTERN SECTIONS OF SOUTH CENTRAL TEXAS AND MORE IS ON THE WAY. SOME ROADS IN DEWITT COUNTY WERE REPORTED TO BE COVERED IN WATER AND CLOSED. ADDITIONAL WEATHER INFORMATION IS AVAILABLE ON THE NATIONAL WEATHER SERVICE CENTRAL AND SOUTH CENTRAL TEXAS HOME PAGE OF THE INTERNET WORLD WIDE WEB AT WWW.SRH.NOAA.GOV/EWX OR TUNE TO THE VOICE OF THE NATIONAL WEATHER SERVICE...NOAA WEATHER RADIO...OPERATING ON A FREQUENCY BETWEEN 162.400 MHZ AND 162.550 MHZ.
Special weather statement, Sep 11, 5:35 AM CDT, 5 hours 41 minutes before
TXZ171>173-183>194-202>209-217>225-228-111300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 535 AM CDT FRI SEP 11 1998 ...TORNADO WATCH IN EFFECT FOR THE EASTERN SECTIONS OF SOUTH CENTRAL TEXAS UNTIL 1 PM... ...FLASH FLOOD WATCH IN EFFECT FOR SOUTH CENTRAL TEXAS AND THE HILL COUNTRY THROUGH TODAY... ...FLASH FLOOD WARNING IN EFFECT FOR LAVACA...DEWITT...KARNES AND GONZALES COUNTIES UNTIL 10 AM CDT... ...WIND ADVISORY IN EFFECT FOR HILL COUNTRY AND MUCH OF SOUTH CENTRAL TEXAS THROUGH TODAY... TROPICAL STORM FRANCES HAS MOVED INLAND ALONG THE MIDDLE TEXAS COAST AND WAS MOVING NORTHWEST NEAR 13 MPH INTO SOUTH CENTRAL TEXAS THIS MORNING. ALONG WITH THE POTENTIAL FOR HEAVY RAIN RAIN AND FLOODING ...THERE EXISTS THE POTENTIAL FOR TORNADOES IN THE VERY MOIST AND UNSTABLE TROPICAL AIR. IN ADDITION...NORTH AND NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS TO NEAR 40 MPH ARE EXPECTED WITH FRANCES AS SHE MOVES INLAND TODAY. THEREFORE WIND ADVISORIES ARE IN EFFECT FOR MUCH OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY. WIDESPREAD SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN OVER MUCH OF SOUTH CENTRAL TEXAS...SPREADING WESTWARD INTO THE EASTERN HILL COUNTRY. RAINFALL RATES OF 1 TO 2 INCHES PER HOUR WERE ESTIMATED BY RADAR. RAINFALL TOTALS OF 2 TO 6 INCHES WERE COMMON OVER THE SOUTHEASTERN SECTIONS OF SOUTH CENTRAL TEXAS AND MORE IS ON THE WAY. SOME ROADS IN DEWITT COUNTY WERE REPORTED TO BE COVERED IN WATER AND CLOSED. ADDITIONAL WEATHER INFORMATION IS AVAILABLE ON THE NATIONAL WEATHER SERVICE CENTRAL AND SOUTH CENTRAL TEXAS HOME PAGE OF THE INTERNET WORLD WIDE WEB AT WWW.SRH.NOAA.GOV/EWX OR TUNE TO THE VOICE OF THE NATIONAL WEATHER SERVICE...NOAA WEATHER RADIO...OPERATING ON A FREQUENCY BETWEEN 162.400 MHZ AND 162.550 MHZ.
Special weather statement, Sep 11, 6:48 AM CDT, 4 hours 28 minutes before
TXZ171>173-183>194-202>209-217>225-228-112300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 648 AM CDT FRI SEP 11 1998 ...TORNADO WATCH IN EFFECT FOR THE EASTERN SECTIONS OF SOUTH CENTRAL TEXAS UNTIL 1 PM... ...FLASH FLOOD WATCH TODAY FOR ALL OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY... ...WIND ADVISORY IN EFFECT FOR THE HILL COUNTRY AND MUCH OF SOUTH CENTRAL TEXAS THROUGH TODAY... THE CENTER OF TROPICAL STORM FRANCES MADE LANDFALL NEAR REFUGIO... TEXAS...EARLY THIS MORNING. THE STORM IS MOVING NORTHWEST ACROSS THE TEXAS COASTAL PLAINS AT ABOUT 13 MPH. THE FORECAST TRACK WILL TAKE THE CENTER OF THE STORM NEAR SAN ANTONIO LATE THIS MORNING AND INTO THE HILL COUNTRY LATER TODAY AND TONIGHT. THE STORM WILL PRODUCE WIDESPREAD RAINS OF 1 TO 3 INCHES. TOTALS OF 5 TO 10 INCHES WILL OCCUR IN SPOTS...MAINLY ALONG AND TO THE NORTHEAST OF THE STORM'S TRACK. UP TO 12 INCHES OF RAIN IS POSSIBLE IN A FEW AREAS. IN ADDITION TO THE FLOODING THREAT... THE POTENTIAL FOR TORNADOES EXISTS UNTIL EARLY AFTERNOON ROUGHLY EAST OF AN AUSTIN TO CUERO LINE. WINDY CONDITIONS WILL PLAGUE MOST OF THE AREA TODAY...POSING A HAZARD FOR DRIVERS OF HIGH PROFILE VEHIICLES. THIS IS A POTENTIALLY VERY DANGEROUS SITUATION AND RESIDENTS ARE URGED TO MONITOR THE WEATHER CLOSELY. THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF THE ZONE FORECASTS...SHORT TERM FORECAST...WATCHES...WARNINGS AND ADVISORIES. THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED ONLY IF UNEXPECTED HAZARDOUS WEATHER DEVELOPS OR IF EXPECTED HAZARDOUS WEATHER NO LONGER IS FORECAST TO DEVELOP. ADDITIONAL WEATHER INFORMATION IS AVAILABLE ON THE NATIONAL WEATHER SERVICE CENTRAL AND SOUTH CENTRAL TEXAS HOME PAGE OF THE INTERNET WORLD WIDE WEB AT WWW.SRH.NOAA.GOV/EWX OR TUNE TO THE VOICE OF THE NATIONAL WEATHER SERVICE...NOAA WEATHER RADIO...OPERATING ON A FREQUENCY BETWEEN 162.400 MHZ AND 162.550 MHZ. NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE: SOUTHWEST TEXAS FROM MIDLAND LBBSPSMAF...WWUS35 KMAF CONCHO VALLEY FROM SAN ANGELO LBBSPSSJT...WWUS35 KSJT NORTH TEXAS FROM FORT WORTH FTWSPSFTW...WWUS35 KFTW SOUTHEAST bTEXAS FROM HOUSTON/GALVESTON SATSPSHOU...WWUS35 KHOU COASTAL BEND/ FROM CORPUS CHRISTI SATSPSCRP...WWUS35 KCRP RIO GRANDE PLAINS
Special weather statement, Sep 11, 6:48 AM CDT, 4 hours 28 minutes before
TXZ171>173-183>194-202>209-217>225-228-112300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 648 AM CDT FRI SEP 11 1998 ...TORNADO WATCH IN EFFECT FOR THE EASTERN SECTIONS OF SOUTH CENTRAL TEXAS UNTIL 1 PM... ...FLASH FLOOD WATCH TODAY FOR ALL OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY... ...WIND ADVISORY IN EFFECT FOR THE HILL COUNTRY AND MUCH OF SOUTH CENTRAL TEXAS THROUGH TODAY... THE CENTER OF TROPICAL STORM FRANCES MADE LANDFALL NEAR REFUGIO... TEXAS...EARLY THIS MORNING. THE STORM IS MOVING NORTHWEST ACROSS THE TEXAS COASTAL PLAINS AT ABOUT 13 MPH. THE FORECAST TRACK WILL TAKE THE CENTER OF THE STORM NEAR SAN ANTONIO LATE THIS MORNING AND INTO THE HILL COUNTRY LATER TODAY AND TONIGHT. THE STORM WILL PRODUCE WIDESPREAD RAINS OF 1 TO 3 INCHES. TOTALS OF 5 TO 10 INCHES WILL OCCUR IN SPOTS...MAINLY ALONG AND TO THE NORTHEAST OF THE STORM'S TRACK. UP TO 12 INCHES OF RAIN IS POSSIBLE IN A FEW AREAS. IN ADDITION TO THE FLOODING THREAT... THE POTENTIAL FOR TORNADOES EXISTS UNTIL EARLY AFTERNOON ROUGHLY EAST OF AN AUSTIN TO CUERO LINE. WINDY CONDITIONS WILL PLAGUE MOST OF THE AREA TODAY...POSING A HAZARD FOR DRIVERS OF HIGH PROFILE VEHIICLES. THIS IS A POTENTIALLY VERY DANGEROUS SITUATION AND RESIDENTS ARE URGED TO MONITOR THE WEATHER CLOSELY. THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF THE ZONE FORECASTS...SHORT TERM FORECAST...WATCHES...WARNINGS AND ADVISORIES. THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED ONLY IF UNEXPECTED HAZARDOUS WEATHER DEVELOPS OR IF EXPECTED HAZARDOUS WEATHER NO LONGER IS FORECAST TO DEVELOP. ADDITIONAL WEATHER INFORMATION IS AVAILABLE ON THE NATIONAL WEATHER SERVICE CENTRAL AND SOUTH CENTRAL TEXAS HOME PAGE OF THE INTERNET WORLD WIDE WEB AT WWW.SRH.NOAA.GOV/EWX OR TUNE TO THE VOICE OF THE NATIONAL WEATHER SERVICE...NOAA WEATHER RADIO...OPERATING ON A FREQUENCY BETWEEN 162.400 MHZ AND 162.550 MHZ. NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE: SOUTHWEST TEXAS FROM MIDLAND LBBSPSMAF...WWUS35 KMAF CONCHO VALLEY FROM SAN ANGELO LBBSPSSJT...WWUS35 KSJT NORTH TEXAS FROM FORT WORTH FTWSPSFTW...WWUS35 KFTW SOUTHEAST bTEXAS FROM HOUSTON/GALVESTON SATSPSHOU...WWUS35 KHOU COASTAL BEND/ FROM CORPUS CHRISTI SATSPSCRP...WWUS35 KCRP RIO GRANDE PLAINS
Special weather statement, Sep 11, 10:23 AM CDT, 53 minutes before
TXZ171>173-183>194-202>209-217>225-228-112130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1023 AM CDT FRI SEP 11 1998 ...FRANCIS MOVING TOWARD HILL COUNTRY... ...TORRENTIAL RAINS POSSIBLE TONIGHT OVER PORTIONS OF HILL COUNTRY... TROPICAL STORM FRANCIS WAS CHURNING NORTHWESTWARD THIS MORNING TOWARD THE TEXAS HILL COUNTRY. THE LOW CENTER..NOW NEAR BEEVILLE WILL PUSH JUST SOUTH OF SAN ANTONIO BY 7 PM...MOVING OVER THE SOUTHEASTERN AND SOUTH CENTRAL PORTIONS OF THE HILL COUNTRY TONIGHT. AS WITH ANY TROPICAL SYSTEM..NIGHTTIME CORE RAINS REMAIN A DANGEROUS THREAT. THESE ARE THE TORRENTIAL DOWNPOURS WHICH OCCUR DURING THE NIGHT HOURS NEAR THE CENTER OF A TROPICAL LOW. AS THE LOW TRACKS ACROSS THE HILL COUNTRY..CORE RAINS COULD DEVELOP..WITH AMOUNTS OF 5 TO 10 INCHES POSSIBLE IN A SHORT AMOUNT OF TIME. THE HILL COUNTRY..WITH ITS CHARACTERISTICALLY ROCKY NATURE..WILL EXACERBATE THE THREAT AS RAPID RUNOFF WILL RESULT IN DANGEROUS..LIFE THREATENING FLASH FLOODS. THE NATIONAL WEATHER SERVICE WARNS RESIDENTS OF THESE AREAS TO TAKE NECESSARY PRECAUTIONS TO PROTECT LIFE AND PROPERTY. IF YOU LIVE IN A LOW LYING OR FLOOD PRONE AREA..KEEP ABREAST OF THE LATEST WEATHER DEVELOPMENTS TONIGHT AND BE READY TO MOVE TO HIGHER GROUND IF FLASH FLOODING OCCURS OR A WARNING IS ISSUED. CAMPERS AND PEOPLE TEMPORARILY IN THE FLOOD PLAIN SHOULD BE AWARE THAT HEAVY RAIN AND FLOODING CONDITIONS CAN INUNDATE THE FLOOD PLAIN WITH TENS OF FEET OF TURBULENT FLOW IN LESS THAN AN HOUR IN FLASHY STREAMS. SECONDARY ROADS AND LOW BRIDGES WILL BE EXTREMELY DANGEROUS..ESPECIALLY ALONG THE ESCARPMENT TONIGHT. TRAVEL IS DISCOURAGED ACROSS THE THREATENED COUNTIES TONIGH\T.
Special weather statement, Sep 11, 10:23 AM CDT, 53 minutes before
TXZ171>173-183>194-202>209-217>225-228-112130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1023 AM CDT FRI SEP 11 1998 ...FRANCIS MOVING TOWARD HILL COUNTRY... ...TORRENTIAL RAINS POSSIBLE TONIGHT OVER PORTIONS OF HILL COUNTRY... TROPICAL STORM FRANCIS WAS CHURNING NORTHWESTWARD THIS MORNING TOWARD THE TEXAS HILL COUNTRY. THE LOW CENTER..NOW NEAR BEEVILLE WILL PUSH JUST SOUTH OF SAN ANTONIO BY 7 PM...MOVING OVER THE SOUTHEASTERN AND SOUTH CENTRAL PORTIONS OF THE HILL COUNTRY TONIGHT. AS WITH ANY TROPICAL SYSTEM..NIGHTTIME CORE RAINS REMAIN A DANGEROUS THREAT. THESE ARE THE TORRENTIAL DOWNPOURS WHICH OCCUR DURING THE NIGHT HOURS NEAR THE CENTER OF A TROPICAL LOW. AS THE LOW TRACKS ACROSS THE HILL COUNTRY..CORE RAINS COULD DEVELOP..WITH AMOUNTS OF 5 TO 10 INCHES POSSIBLE IN A SHORT AMOUNT OF TIME. THE HILL COUNTRY..WITH ITS CHARACTERISTICALLY ROCKY NATURE..WILL EXACERBATE THE THREAT AS RAPID RUNOFF WILL RESULT IN DANGEROUS..LIFE THREATENING FLASH FLOODS. THE NATIONAL WEATHER SERVICE WARNS RESIDENTS OF THESE AREAS TO TAKE NECESSARY PRECAUTIONS TO PROTECT LIFE AND PROPERTY. IF YOU LIVE IN A LOW LYING OR FLOOD PRONE AREA..KEEP ABREAST OF THE LATEST WEATHER DEVELOPMENTS TONIGHT AND BE READY TO MOVE TO HIGHER GROUND IF FLASH FLOODING OCCURS OR A WARNING IS ISSUED. CAMPERS AND PEOPLE TEMPORARILY IN THE FLOOD PLAIN SHOULD BE AWARE THAT HEAVY RAIN AND FLOODING CONDITIONS CAN INUNDATE THE FLOOD PLAIN WITH TENS OF FEET OF TURBULENT FLOW IN LESS THAN AN HOUR IN FLASHY STREAMS. SECONDARY ROADS AND LOW BRIDGES WILL BE EXTREMELY DANGEROUS..ESPECIALLY ALONG THE ESCARPMENT TONIGHT. TRAVEL IS DISCOURAGED ACROSS THE THREATENED COUNTIES TONIGH\T.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 10, 11:29 PM CDT | Flash Flood Warning | EWX | Lavaca | 6 hr |
| Sep 11, 12:24 AM CDT | Flash Flood Warning | EWX | DeWitt | 5 hr |
| Sep 11, 5:09 AM CDT | Flash Flood Warning | EWX | DeWitt, Gonzales, Lavaca | 5 hr |
| Sep 11, 5:09 AM CDT | Flash Flood Warning | EWX | Karnes | 5 hr |
| Sep 11, 8:16 AM CDT | Flash Flood Warning | EWX | Wilson | 4 hr |
| Sep 11, 8:53 AM CDT | Flash Flood Warning | EWX | Bastrop, Lee, Travis, Williamson | 4 hr |
| Sep 11, 9:58 AM CDT | Flash Flood Warning | EWX | DeWitt, Karnes | 3 hr |
| Sep 11, 11:08 AM CDT | Flash Flood Warning | EWX | Guadalupe | 112 min |
| Sep 11, 11:23 AM CDT | Flash Flood Warning | EWX | Bexar | 3 hr |
| Sep 11, 12:22 PM CDT | Flash Flood Warning | EWX | Wilson | 98 min |
| Sep 11, 6:03 PM CDT | Flash Flood Warning | EWX | Fayette, Lee | 2 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.