Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 165, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Oct 6, 1998, 3:36 AM CDT for DeWitt County, Lavaca County, Texas. It was in force for 2 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 6, 1998, 3:36 AM CDT (08:36 UTC)
- Expired
- Oct 6, 1998, 6:05 AM CDT
- In force
- 2 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties DeWitt County, TX, Lavaca County, TX
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 8.6 hours before the alert went out and 168 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
- 4778 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 651 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 119 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 8.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 060837 FFWSAT TXC123-285-061105- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 336 AM CDT TUE OCT 6 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR... LAVACA COUNTY IN SOUTH CENTRAL TEXAS DEWITT COUNTY IN SOUTH CENTRAL TEXAS * UNTIL 605 AM CDT * AT 335 AM...DOPPLER RADAR INDICATED A SLOW-MOVING LINE OF SHOWERS AND THUNDERSTORMS MOVING INTO DEWITT AND LAVACA COUNTIES. MOVEMENT WAS TO THE SOUTHEAST NEAR 15 MPH. THE SLOW MOVING STORMS...PRODUCING RAINFALL AMOUNTS FROM ONE TO TWO INCHES PER HOUR...WILL CAUSE FLOODING OF LOW LYING AREAS... STREETS...STREAMS AND CREEKS. PLEASE REMEMBER TO NOT DRIVE ACROSS FLOODED ROADWAYS. IF YOU ARE IN THESE AREAS... MOVE TO HIGHER GROUND. DO NOT DRIVE THROUGH WATER COVERING THE ROAD. 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 ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. IT IS VERY DIFFICULT AT NIGHT TO TELL HOW MUCH WATER IS ON ROADS. MOTORISTS SHOULD NOT DRIVE THROUGH WATER OF UxNKNOWN DEPTH.
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
Local storm report, Oct 6, 1:04 AM CDT, 2 hours 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
104 AM CDT TUE OCT 06 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1200 AM LAUGHLIN AFB TX 60 MPH TSTM GUST
10/06/98 VAL VERDE LAUGHLIN AIRFORCE BASE
PERSONNEL REPORTED 60
MPH WINDS AS STORMS MOVED
INTO AREA.Local storm report, Oct 6, 1:04 AM CDT, 2 hours 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
104 AM CDT TUE OCT 06 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1200 AM LAUGHLIN AFB TX 60 MPH TSTM GUST
10/06/98 VAL VERDE LAUGHLIN AIRFORCE BASE
PERSONNEL REPORTED 60
MPH WINDS AS STORMS MOVED
INTO AREA.Special weather statement, Oct 6, 3:27 AM CDT, 9 minutes before
TXZ171>173-183>194-202>209-217>225-228-061055- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 327 AM CDT TUE OCT 6 1998 ...FLASH FLOOD WARNING REMAINS IN EFFECT FOR VAL VERDE AND KINNEY COUNTIES UNTIL 410 AM... ...URBAN AND SMALL STREAM FLOOD ADVISORY REMAINS IN EFFECT FOR BEXAR COUNTY UNTIL 440 AM... ...URBAN AND SMALL STREAM FLOOD ADVISORY FOR TRAVIS AND WILLIAMSON COUNTIES WILL EXPIRE AT 345 AM... DOPPLER RADAR INDICATED A LINE OF STRONG THUNDERSTORMS WITH LOCALLY HEAVY RAINFALL AND STRONG GUSTY WINDS...LOCATED FROM COLLEGE STATION TO SAN ANTONIO TO COTULLA. MOVEMENT WAS TO THE SOUTHEAST NEAR 20 MPH. THE SHOWERS AND THUNDERSTORMS ARE LOCATED ALONG A COLD FRONT MOVING THROUGH THE AREA. RAINFALL RATES REMAIN FROM 1 TO 2 INCHES PER HOUR...WHICH WILL CAUSE FLOODING OF LOW LYING AREAS...STREETS... STREAMS AND CREEKS. IF YOU ARE OUTDOORS...MOVE TO A PLACE OF SHELTER IMMEDIATELY IF A STORM APPROACHES. MOTORISTS SHOULD REMAIN ALERT FOR REDUCED VISIBILITIES DURING DOWNPOURS OF RAIN. STREETS MAY FLOOD QUICKLY. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...f ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. IT IS VERY DIFFICULT AT NIGHT TO TELL HOW MUCH WATER IS ON ROADS. MOTORISTS SHOULD NOT DRIVE THROUGH WATER OF UNKNOWN DEPTH.
Special weather statement, Oct 6, 3:27 AM CDT, 9 minutes before
TXZ171>173-183>194-202>209-217>225-228-061055- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 327 AM CDT TUE OCT 6 1998 ...FLASH FLOOD WARNING REMAINS IN EFFECT FOR VAL VERDE AND KINNEY COUNTIES UNTIL 410 AM... ...URBAN AND SMALL STREAM FLOOD ADVISORY REMAINS IN EFFECT FOR BEXAR COUNTY UNTIL 440 AM... ...URBAN AND SMALL STREAM FLOOD ADVISORY FOR TRAVIS AND WILLIAMSON COUNTIES WILL EXPIRE AT 345 AM... DOPPLER RADAR INDICATED A LINE OF STRONG THUNDERSTORMS WITH LOCALLY HEAVY RAINFALL AND STRONG GUSTY WINDS...LOCATED FROM COLLEGE STATION TO SAN ANTONIO TO COTULLA. MOVEMENT WAS TO THE SOUTHEAST NEAR 20 MPH. THE SHOWERS AND THUNDERSTORMS ARE LOCATED ALONG A COLD FRONT MOVING THROUGH THE AREA. RAINFALL RATES REMAIN FROM 1 TO 2 INCHES PER HOUR...WHICH WILL CAUSE FLOODING OF LOW LYING AREAS...STREETS... STREAMS AND CREEKS. IF YOU ARE OUTDOORS...MOVE TO A PLACE OF SHELTER IMMEDIATELY IF A STORM APPROACHES. MOTORISTS SHOULD REMAIN ALERT FOR REDUCED VISIBILITIES DURING DOWNPOURS OF RAIN. STREETS MAY FLOOD QUICKLY. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...f ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. IT IS VERY DIFFICULT AT NIGHT TO TELL HOW MUCH WATER IS ON ROADS. MOTORISTS SHOULD NOT DRIVE THROUGH WATER OF UNKNOWN DEPTH.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 5, 8:20 PM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 90 min |
| Oct 5, 9:41 PM CDT | Severe Thunderstorm Warning | EWX | Edwards | 89 min |
| Oct 5, 10:18 PM CDT | Flash Flood Warning | EWX | Edwards, Val Verde | 6 hr |
| Oct 5, 11:08 PM CDT | Severe Thunderstorm Warning | EWX | Edwards | 92 min |
| Oct 5, 11:39 PM CDT | Severe Thunderstorm Warning | EWX | Kinney, Val Verde | 61 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.