Alert archive / Texas / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 197, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Aug 20, 1998, 8:10 PM CDT for Fayette County, Lavaca County, Texas. It was in force for 60 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 20, 1998, 8:10 PM CDT (01:10 UTC)
- Expired
- Aug 20, 1998, 9:10 PM CDT
- In force
- 60 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Fayette County, TX, Lavaca County, TX
The radar
The Austin/San Antonio radar (KEWX), 107 km from the middle of the area, began a volume at 01:12 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 20, 8:15 PM CDT | Thunderstorm Wind | Schulenburg, TX | |
| Aug 20, 8:45 PM CDT | Thunderstorm Wind | Moulton, TX |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 1.2 hours before the alert went out and 215 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
- 2602 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 895 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm 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, Aug 20, 3:43 PM CDT, 4 hours 27 minutes before
TXZ171>173-183>194-202>209-217>225-228-202100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 343 PM CDT THU AUG 20 1998 ...RAIN EVENT EXPECTED FRIDAY AFTERNOON THROUGH THE WEEKEND... AN TROPICAL SYSTEM IN THE GULF OF MEXICO WILL MOVE ONSHORE FRIDAY MORNING AND AFFECT THE TEXAS COAST. THIS SYSTEM WILL MOVE WEST AND NORTHWEST FRIDAY AND BRING SHOWERS AND THUNDERSTORMS TO SOUTH CENTRAL TEXAS AND THE HILL COUNTRY BY FRIDAY AFTERNOON. THE SHOWERS AND THUNDERSTORMS...SOME WITH HEAVY RAINFALL...WILL LAST INTO THE WEEKEND. ESTIMATED RAINFALL MAY BE NEAR 2 INCHES WITH ISOLATED AMOUNTS NEAR 4 INCHES POSSIBLE. DUE TO RECENT RAINS...RUNOFF WILL BE RAPID AND FLOODING OF LOW WATER CROSSINGS...STREAMS AND CREEKS MAY OCCUR. A FLASH FLOOD WATCH MAY BE REQUIRED. IF PERSONS ACROSS SOUTH CENTRAL TEXAS HAVE OUTDOOR PLANS...CAMPERS OR HIKERS...PLEASE PAY CLOSE ATTENTION TO THE WEATHER THIS WEEKEND. STAY TUNED FOR FURTHER UPDATES ON THIS RAIN EVENT.
Special weather statement, Aug 20, 3:43 PM CDT, 4 hours 27 minutes before
TXZ171>173-183>194-202>209-217>225-228-202100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 343 PM CDT THU AUG 20 1998 ...RAIN EVENT EXPECTED FRIDAY AFTERNOON THROUGH THE WEEKEND... AN TROPICAL SYSTEM IN THE GULF OF MEXICO WILL MOVE ONSHORE FRIDAY MORNING AND AFFECT THE TEXAS COAST. THIS SYSTEM WILL MOVE WEST AND NORTHWEST FRIDAY AND BRING SHOWERS AND THUNDERSTORMS TO SOUTH CENTRAL TEXAS AND THE HILL COUNTRY BY FRIDAY AFTERNOON. THE SHOWERS AND THUNDERSTORMS...SOME WITH HEAVY RAINFALL...WILL LAST INTO THE WEEKEND. ESTIMATED RAINFALL MAY BE NEAR 2 INCHES WITH ISOLATED AMOUNTS NEAR 4 INCHES POSSIBLE. DUE TO RECENT RAINS...RUNOFF WILL BE RAPID AND FLOODING OF LOW WATER CROSSINGS...STREAMS AND CREEKS MAY OCCUR. A FLASH FLOOD WATCH MAY BE REQUIRED. IF PERSONS ACROSS SOUTH CENTRAL TEXAS HAVE OUTDOOR PLANS...CAMPERS OR HIKERS...PLEASE PAY CLOSE ATTENTION TO THE WEATHER THIS WEEKEND. STAY TUNED FOR FURTHER UPDATES ON THIS RAIN EVENT.
Special weather statement, Aug 20, 5:30 PM CDT, 2 hours 40 minutes before
TXZ171>173-183>194-202>209-217>225-228-211200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 530 PM CDT THU AUG 20 1998 NO HAZARDOUS WEATHER IS FORECAST ACROSS SOUTH CENTRAL TEXAS OR THE TEXAS HILL COUNTRY TONIGHT OR FRIDAY. HOWEVER...AN AREA OF DEEP TROPICAL MOISTURE IS EXPECTED TO MOVE INLAND FROM THE GULF OF MEXICO FRIDAY...INCREASING THE CHANCES FOR SHOWERS AND THUNDERSTORMS IN SOUTH TEXAS. SINCE THE GROUND IS WELL SATURATED IN SOME LOCATIONS DUE TO PRIOR HEAVY RAINFALL...ADDITIONAL AMOUNTS WILL INCREASE THE POTENTIAL FOR FLASH FLOODING. RESIDENTS SHOULD STAY INFORMED OF THE LATEST FORECASTS AND BULLETINS AND TAKE PROTECTIVE MEASURES AS REQUIRED. PERSONS CLOSE TO FLOOD-PRONE CREEKS AND RIVERS...AS WELL AS HIKERS AND CAMPERS...SHOULD ALSO LISTEN FOR LATER ADVISORIES. PERSONS PLANNING A TRIP TO THE COAST SHOULD BE AWARE OF LOCALLY HEAVY RAINFALL...GUSTY WINDS AND POSSIBLE COASTAL FLOODING AS WELL THIS WEEKEND. 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 TEXAS FROM HOUSTON/GALVESTON SATSPSHOU...WWUS35 KHOU COASTAL BEND/ FROM CORPUS CHRISTI SATSPSCRP...WWUS35 KCRP RIO GRANDE PLAINS
Special weather statement, Aug 20, 5:30 PM CDT, 2 hours 40 minutes before
TXZ171>173-183>194-202>209-217>225-228-211200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 530 PM CDT THU AUG 20 1998 NO HAZARDOUS WEATHER IS FORECAST ACROSS SOUTH CENTRAL TEXAS OR THE TEXAS HILL COUNTRY TONIGHT OR FRIDAY. HOWEVER...AN AREA OF DEEP TROPICAL MOISTURE IS EXPECTED TO MOVE INLAND FROM THE GULF OF MEXICO FRIDAY...INCREASING THE CHANCES FOR SHOWERS AND THUNDERSTORMS IN SOUTH TEXAS. SINCE THE GROUND IS WELL SATURATED IN SOME LOCATIONS DUE TO PRIOR HEAVY RAINFALL...ADDITIONAL AMOUNTS WILL INCREASE THE POTENTIAL FOR FLASH FLOODING. RESIDENTS SHOULD STAY INFORMED OF THE LATEST FORECASTS AND BULLETINS AND TAKE PROTECTIVE MEASURES AS REQUIRED. PERSONS CLOSE TO FLOOD-PRONE CREEKS AND RIVERS...AS WELL AS HIKERS AND CAMPERS...SHOULD ALSO LISTEN FOR LATER ADVISORIES. PERSONS PLANNING A TRIP TO THE COAST SHOULD BE AWARE OF LOCALLY HEAVY RAINFALL...GUSTY WINDS AND POSSIBLE COASTAL FLOODING AS WELL THIS WEEKEND. 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 TEXAS FROM HOUSTON/GALVESTON SATSPSHOU...WWUS35 KHOU COASTAL BEND/ FROM CORPUS CHRISTI SATSPSCRP...WWUS35 KCRP RIO GRANDE PLAINS
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 8:30 PM CDT | Severe Thunderstorm Warning | EWX | Lavaca | 65 min |
| Aug 20, 8:45 PM CDT | Severe Thunderstorm Warning | EWX | DeWitt | 65 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1998Every severe thunderstorm 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.