Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 1, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jan 6, 1998, 6:56 AM CST for Bandera County, Gillespie County, Kerr County, Texas. It was in force for 5 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
- Jan 6, 1998, 6:56 AM CST (12:56 UTC)
- Expired
- Jan 6, 1998, 12:00 PM CST
- In force
- 5 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Bandera County, TX, Gillespie County, TX, Kerr County, TX
The radar
The Austin/San Antonio radar (KEWX), 117 km from the middle of the area, began a volume at 12:59 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, 0.9 hours before the alert went out and 177 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
- 1357 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 514 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 156 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 061304 FFWSAT TXC019-171-265-061800- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 656 AM CST TUE JAN 6 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL NOON CST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL TEXAS ...BANDERA COUNTY...GILLESPIE COUNTY...KERR COUNTY AT 655 AM CST...DOPPLER RADAR INDICATED A LINE OF THUNDERSTORMS FROM CONCAN TO MEDINA TO KERRVILLE AND FREDERICKSBURG. MOVEMENT WAS TOWARD THE NORTHEAST AT 20 MPH. SINCE THESE STORMS ARE TRAINING ACROSS THE SAME LOCATION...THE POTENTIAL FOR FLASH FLOODING IS INTENSIFIED. RAINFALL AMOUNTS BETWEEN 2 AND 4 INCHES COULD OCCUR IN THE WARNED COUNTIES FOR THE NEXT SEVERAL HOURS. THE POTENTIAL FOR FLASH FLOODING FROM RUNOFF WILL PERSIST THROUGH THE MORNING HOURS. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS AND OTHER PEOPLE IN RECREATION AREAS ALONG CREEKS...STREAMS...AND RIVERS IN THE WARNING AREA SHOULD MOVE TO HIGH GROUND IMMEDIATELY. MOTORISTS SHOULD NOT ATTEMPT TO CROSS FLOODED LOW-WATER CROSSINGS. FLOOD PRONE URBAN AREAS FILL WITH WATER QUICKLY. CLOGGED STORM DRAINS MAY CAUSE OTHER AREAS TO FLOOD. DO NOT DRIVE THROUGH FLOOD WATERS AND STAY AWAY FROM STORM DRAINS. A FLASH FLOOD WATCH REMAINS IN EFFECT FOR THE TEXAS HILL COUNTRY... SOUTH CENTRAL TEXAS AND SOUTHEAST TEXAS TODAY AND TONIGHT.
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, Jan 6, 5:30 AM CST, 1 hour 26 minutes before
TXZ171>173-183>194-202>209-217>225-228-070000- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 530 AM CST TUE JAN 6 1998 A FLASH FLOOD WATCH IS IN EFFECT FOR SOUTH CENTRAL TEXAS AND THE TEXAS HILL COUNTRY FOR TODAY AND TONIGHT. AN APPROACHING UPPER-LEVEL TROUGH OF LOW PRESSURE FROM THE WEST... COUPLED WITH ABUNDANT LOW-LEVEL MOISTURE FROM THE GULF...WILL COMBINE TO PRODUCE WIDESPREAD SHOWERS AND THUNDERSTORMS TODAY AND TONIGHT ACROSS MUCH OF SOUTH CENTRAL TEXAS...THE TEXAS HILL COUNTRY AND EASTWARD INTO SOUTHEAST TEXAS AND BEYOND. SOME OF THESE STORMS COULD APPROACH SEVERE CRITERIA...ESPECIALLY IN SOUTHEAST TEXAS... BUT THE MAIN THREAT WILL LIKELY COME FROM LOCALLY HEAVY RAINFALL AND FLASH FLOODING. RAINFALL TOTALS TODAY AND TONIGHT WILL AVERAGE BETWEEN HALF AN INCH AND AN INCH IN SOUTH CENTRAL TEXAS AND THE HILL COUNTRY...WITH SOME ISOLATED TOTALS BETWEEN 2 AND 4 INCHES POSSIBLE. FARTHER EAST IN SOUTHEAST TEXAS...RAINFALL TOTALS COULD APPROACH 5 INCHES OR MORE BEFORE THE RAINS TAPER OFF WEDNESDAY AND WEDNESDAY NIGHT. AN APPROACHING COLD FRONT WILL ALSO AID IN TRIGGERING CONVECTION TODAY AND TONIGHT AND USHER IN MUCH COOLER AIR AS WELL. NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE: FOR SOUTHWEST TEXAS...FROM MIDLAND...LBBSPSMAF FOR THE CONCHO VALLEY...FROM SAN ANGELO...LBBSPSSJT FOR NORTH TEXAS...FROM FORT WORTH...FTWSPSFTW FOR SOUTHEAST TEXAS...FROM HOUSTON/GALVESTON...SATSPSHOU FOR COASTAL BEND/RIO GRANDE PLAINS...FROM CORPUS CHRISTI...SATSPSCRP. 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.
Special weather statement, Jan 6, 5:30 AM CST, 1 hour 26 minutes before
TXZ171>173-183>194-202>209-217>225-228-070000- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 530 AM CST TUE JAN 6 1998 A FLASH FLOOD WATCH IS IN EFFECT FOR SOUTH CENTRAL TEXAS AND THE TEXAS HILL COUNTRY FOR TODAY AND TONIGHT. AN APPROACHING UPPER-LEVEL TROUGH OF LOW PRESSURE FROM THE WEST... COUPLED WITH ABUNDANT LOW-LEVEL MOISTURE FROM THE GULF...WILL COMBINE TO PRODUCE WIDESPREAD SHOWERS AND THUNDERSTORMS TODAY AND TONIGHT ACROSS MUCH OF SOUTH CENTRAL TEXAS...THE TEXAS HILL COUNTRY AND EASTWARD INTO SOUTHEAST TEXAS AND BEYOND. SOME OF THESE STORMS COULD APPROACH SEVERE CRITERIA...ESPECIALLY IN SOUTHEAST TEXAS... BUT THE MAIN THREAT WILL LIKELY COME FROM LOCALLY HEAVY RAINFALL AND FLASH FLOODING. RAINFALL TOTALS TODAY AND TONIGHT WILL AVERAGE BETWEEN HALF AN INCH AND AN INCH IN SOUTH CENTRAL TEXAS AND THE HILL COUNTRY...WITH SOME ISOLATED TOTALS BETWEEN 2 AND 4 INCHES POSSIBLE. FARTHER EAST IN SOUTHEAST TEXAS...RAINFALL TOTALS COULD APPROACH 5 INCHES OR MORE BEFORE THE RAINS TAPER OFF WEDNESDAY AND WEDNESDAY NIGHT. AN APPROACHING COLD FRONT WILL ALSO AID IN TRIGGERING CONVECTION TODAY AND TONIGHT AND USHER IN MUCH COOLER AIR AS WELL. NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE: FOR SOUTHWEST TEXAS...FROM MIDLAND...LBBSPSMAF FOR THE CONCHO VALLEY...FROM SAN ANGELO...LBBSPSSJT FOR NORTH TEXAS...FROM FORT WORTH...FTWSPSFTW FOR SOUTHEAST TEXAS...FROM HOUSTON/GALVESTON...SATSPSHOU FOR COASTAL BEND/RIO GRANDE PLAINS...FROM CORPUS CHRISTI...SATSPSCRP. 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.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 5, 10:40 PM CST | Severe Thunderstorm Warning | EWX | Burnet | 50 min |
| Jan 6, 8:11 AM CST | Flash Flood Warning | EWX | Llano | 4 hr |
| Jan 6, 8:45 AM CST | Severe Thunderstorm Warning | EWX | Gillespie | 60 min |
| Jan 6, 9:52 AM CST | Severe Thunderstorm Warning | EWX | Williamson | 68 min |
| Jan 6, 11:02 AM CST | Severe Thunderstorm Warning | EWX | Frio | 43 min |
| Jan 6, 11:51 AM CST | Flash Flood Warning | EWX | Frio | 69 min |
| Jan 6, 11:51 AM CST | Severe Thunderstorm Warning | EWX | Frio | 69 min |
| Jan 6, 12:17 PM CST | Flash Flood Warning | EWX | Medina | 3 hr |
| Jan 6, 12:41 PM CST | Flash Flood Warning | EWX | Bexar | 2 hr |
| Jan 6, 12:55 PM CST | Flash Flood Warning | EWX | Frio | 2 hr |
| Jan 6, 1:31 PM CST | Severe Thunderstorm Warning | EWX | Atascosa | 59 min |
| Jan 6, 2:08 PM CST | Flash Flood Warning | EWX | Atascosa | 2 hr |
| Jan 6, 2:32 PM CST | Flash Flood Warning | EWX | Bexar, Comal | 118 min |
| Jan 6, 4:13 PM CST | Flash Flood Warning | EWX | DeWitt, Gonzales, Lavaca | 3 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; radar from the NEXRAD Level II archive.