Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 30, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Mar 15, 1998, 8:45 PM CST for Edwards 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
- Mar 15, 1998, 8:45 PM CST (02:45 UTC)
- Expired
- Mar 15, 1998, 11:45 PM CST
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Edwards County, TX
The radar
The Laughlin AFB radar (KDFX), 79 km from the middle of the area, began a volume at 02:49 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 00:00Z, 2.8 hours before the alert went out and 86 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
- 1211 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 840 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 3.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 160245 FFWSAT TXC137-160545- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 845 PM CST SUN MAR 15 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1145 PM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL TEXAS ...EDWARDS COUNTY AT 845 PM CST...DOPPLER RADAR INDICATED A LINE OF THUNDERSTORMS EXTENDING FROM NEAR JUCTION TO DEL RIO. MOVEMENT WAS TOWARDS THE EAST AT 15 MPH. RAINFALL RATES OF UP TO ONE AND A HALF INCHES PER HOUR WERE ESTIMATED BY RADAR. THIS LINE WILL MOVE SLOWLY EASTWARD PRODUCING RAINFALL TOTALS OF 2 TO 3 INCHES OVER THE NEXT SEVERAL HOURS. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGpINS 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, Mar 15, 6:00 PM CST, 2 hours 45 minutes before
TXZ171>173-183>194-202>209-217>225-228-161200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 600 PM CST SUN MAR 15 1998 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TONIGHT INTO MONDAY MORNING FOR SOUTH CENTRAL TEXAS AND THE TEXAS HILL COUNTRY. A FLASH FLOOD WATCH IS ALSO IN EFFECT TONIGHT THROUGH MONDAY MORNING FOR ALL OF SOUTH CENTRAL TEXAS AND THE TEXAS HILL COUNTRY. A STRONG UPPER LEVEL STORM SYSTEM IS CURRENTLY LOCATED OVER WEST TEXAS. THE ATMOSPHERE OVER SOUTH CENTRAL TEXAS AND THE TEXAS HILL COUNTRY HAS BECOME VERY MOIST AND UNSTABLE. THIS COMBINATION WILL LEAD TO WIDESPREAD THUNDERSTORMS DEVELOPING THIS EVENING AND CONTINUING THROUGH THE OVERNIGHT HOURS AND MONDAY MORNING. SOME OF THE STORMS WILL LIKELY BECOME SEVERE WITH LARGE HAIL AND DAMAGING WINDS POSSIBLE. AS THE THUNDERSTORMS BECOME MORE WIDESPREAD TONIGHT...CONDITIONS WILL BECOME FAVORABLE FOR HEAVY RAINFALL. GENERAL RAINFALL AMOUNTS TONIGHT THROUGH MONDAY MORNING WILL AVERAGE 1 TO 2 INCHES. SCATTERED AREAS WILL SEE RAINFALL TOTALS OF 3 TO 5 INCHES WITH ISOLATED TOTALS GREATER THAN 5 INCHES POSSIBLE FROM THE SLOWER MOVING STORMS OR WHERE SEVERAL STORMS TRAVEL OVER THE SAME LOCATION. THESE AMOUNTS WILL LIKELY PRODUCE FLOODING AND FLASH FLOODING. THE STORM SYSTEM WILL MOVE ACROSS THE SOUTH CENTRAL TEXAS AND THE TEXAS HILL COUNTRY DURING THE DAYLIGHT HOURS ON MONDAY. AS A RESULT...SCATTERED SHOWERS AND A FEW THUNDERSTORMS WILL LINGER ACROSS SOUTH CENTRAL TEXAS MONDAY AFTERNOON. RAINFALL WILL AVERAGE LESS THAN HALF AN INCH MONDAY AFTERNOON. THE STORM SYSTEM WILL MOVE EAST OF THE AREA BY MONDAY NIGHT WITH SHOWERS AND THUNDERSTORMS ENDING MONDAY EVENING. RESIDENTS OF SOUTH CENTRAL TEXAS SHOULD MONITOR NOAA WEATHER RADIO... LOCAL RADIO AND TV...AND CABLE TV STATIONS FOR THE LATEST WEATHER FORECASTS AND ADVISORIES UNTIL THIS STORM PASSES. 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. 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 CLOSEST NOAA WEATHER RADIO STATION OPERATING ON A FREQUENCY BETWEEN 162.400 MHz AND 162.550 MHz.
Special weather statement, Mar 15, 6:00 PM CST, 2 hours 45 minutes before
TXZ171>173-183>194-202>209-217>225-228-161200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 600 PM CST SUN MAR 15 1998 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TONIGHT INTO MONDAY MORNING FOR SOUTH CENTRAL TEXAS AND THE TEXAS HILL COUNTRY. A FLASH FLOOD WATCH IS ALSO IN EFFECT TONIGHT THROUGH MONDAY MORNING FOR ALL OF SOUTH CENTRAL TEXAS AND THE TEXAS HILL COUNTRY. A STRONG UPPER LEVEL STORM SYSTEM IS CURRENTLY LOCATED OVER WEST TEXAS. THE ATMOSPHERE OVER SOUTH CENTRAL TEXAS AND THE TEXAS HILL COUNTRY HAS BECOME VERY MOIST AND UNSTABLE. THIS COMBINATION WILL LEAD TO WIDESPREAD THUNDERSTORMS DEVELOPING THIS EVENING AND CONTINUING THROUGH THE OVERNIGHT HOURS AND MONDAY MORNING. SOME OF THE STORMS WILL LIKELY BECOME SEVERE WITH LARGE HAIL AND DAMAGING WINDS POSSIBLE. AS THE THUNDERSTORMS BECOME MORE WIDESPREAD TONIGHT...CONDITIONS WILL BECOME FAVORABLE FOR HEAVY RAINFALL. GENERAL RAINFALL AMOUNTS TONIGHT THROUGH MONDAY MORNING WILL AVERAGE 1 TO 2 INCHES. SCATTERED AREAS WILL SEE RAINFALL TOTALS OF 3 TO 5 INCHES WITH ISOLATED TOTALS GREATER THAN 5 INCHES POSSIBLE FROM THE SLOWER MOVING STORMS OR WHERE SEVERAL STORMS TRAVEL OVER THE SAME LOCATION. THESE AMOUNTS WILL LIKELY PRODUCE FLOODING AND FLASH FLOODING. THE STORM SYSTEM WILL MOVE ACROSS THE SOUTH CENTRAL TEXAS AND THE TEXAS HILL COUNTRY DURING THE DAYLIGHT HOURS ON MONDAY. AS A RESULT...SCATTERED SHOWERS AND A FEW THUNDERSTORMS WILL LINGER ACROSS SOUTH CENTRAL TEXAS MONDAY AFTERNOON. RAINFALL WILL AVERAGE LESS THAN HALF AN INCH MONDAY AFTERNOON. THE STORM SYSTEM WILL MOVE EAST OF THE AREA BY MONDAY NIGHT WITH SHOWERS AND THUNDERSTORMS ENDING MONDAY EVENING. RESIDENTS OF SOUTH CENTRAL TEXAS SHOULD MONITOR NOAA WEATHER RADIO... LOCAL RADIO AND TV...AND CABLE TV STATIONS FOR THE LATEST WEATHER FORECASTS AND ADVISORIES UNTIL THIS STORM PASSES. 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. 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 CLOSEST NOAA WEATHER RADIO STATION OPERATING ON A FREQUENCY BETWEEN 162.400 MHz AND 162.550 MHz.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 15, 7:57 PM CST | Flash Flood Warning | EWX | Val Verde | 2 hr |
| Mar 15, 11:44 PM CST | Flash Flood Warning | EWX | Dimmit, Zavala | 3 hr |
| Mar 15, 11:53 PM CST | Severe Thunderstorm Warning | EWX | Zavala | 67 min |
| Mar 16, 12:28 AM CST | Severe Thunderstorm Warning | EWX | Frio | 62 min |
| Mar 16, 12:46 AM CST | Flash Flood Warning | EWX | Bandera, Bexar, Frio, Medina | 3 hr |
| Mar 16, 12:46 AM CST | Flash Flood Warning | EWX | Gillespie, Kendall, Kerr | 3 hr |
| Mar 16, 12:46 AM CST | Flash Flood Warning | EWX | Blanco, Comal | 3 hr |
| Mar 16, 12:46 AM CST | Flash Flood Warning | EWX | Burnet, Llano | 3 hr |
| Mar 16, 1:31 AM CST | Severe Thunderstorm Warning | EWX | Atascosa | 59 min |
| Mar 16, 2:32 AM CST | Severe Thunderstorm Warning | EWX | Comal | 58 min |
| Mar 16, 3:01 AM CST | Severe Thunderstorm Warning | EWX | Guadalupe, Hays | 59 min |
| Mar 16, 3:01 AM CST | Severe Thunderstorm Warning | EWX | Wilson | 59 min |
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.