Alert archive / Texas / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 121, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 7, 1998, 9:08 PM CST for Williamson County, Texas. It was in force for 67 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
- Mar 7, 1998, 9:08 PM CST (03:08 UTC)
- Expired
- Mar 7, 1998, 10:15 PM CST
- In force
- 67 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Williamson County, TX
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 3.1 hours before the alert went out and 245 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
- 539 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- -111 m²/s²
- 0-3 km storm-relative helicity
- -191 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
127 WUUS1 KSAT 080310 RRA SVRSAT TXC491-080415- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 908 PM CST SAT MAR 7 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1015 PM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL TEXAS ...WILLIAMSON COUNTY AT 905 PM CST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES WEST OF THE GEORGETOWN-ROUND ROCK AREA. MOVEMENT WAS TOWARD THE EAST-NORTHEAST AT 25 MPH TOWARD GEORGETOWN AND ROUND ROCK AND SHOULD BE IN THESE LOCALES BETWEEN 930 AND 945 PM. SEVERE THUNDERSTORM WINDS CAN REACH SPEEDS OVER 60 MPH. THESE WINDS BLOW DOWN TREES...POWER LINES...AND SEVERELY DAMAGE MOBILE HOMES... SOMETIMES BUILDINGS. VERY LARGE HAIL CAN INJURE ANYONE CAUGHT OUTSIDE. IF YOU SEE SEVERE WEATHER TAKING PLACE...CALL YOUR REPORT TO THE NEAREST LAW ENFORCEMENT AGENCY FOR IMMEDIATE RELAY TO THE NATIONAL WEATHER SERVICE.
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, Mar 7, 5:45 PM CST, 3 hours 23 minutes before
TXZ171>173-183>194-202>209-217>225-228-081200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 545 PM CST SAT MAR 7 1998 AN AREA OF SEVERE THUNDERSTORMS WILL MOVE ACROSS CENTRAL TEXAS INTO SOUTHEAST TEXAS EARLY THIS EVENING WITH NO HAZARDOUS WEATHER EXPECTED FOR THE REST OF TONIGHT OR SUNDAY FOR THE TEXAS HILL COUNTRY AND SOUTH CENTRAL TEXAS. RESIDENTS OF CENTRAL TEXAS SHOULD CONTINUE TO MONITOR NOAA WEATHER RADIO...LOCAL RADIO AND TV...AND CABLE TV STATIONS FOR THE LATEST WEATHER FORECASTS AND ADVISORIES UNTIL THE STORMS PASS. 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 7, 5:45 PM CST, 3 hours 23 minutes before
TXZ171>173-183>194-202>209-217>225-228-081200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 545 PM CST SAT MAR 7 1998 AN AREA OF SEVERE THUNDERSTORMS WILL MOVE ACROSS CENTRAL TEXAS INTO SOUTHEAST TEXAS EARLY THIS EVENING WITH NO HAZARDOUS WEATHER EXPECTED FOR THE REST OF TONIGHT OR SUNDAY FOR THE TEXAS HILL COUNTRY AND SOUTH CENTRAL TEXAS. RESIDENTS OF CENTRAL TEXAS SHOULD CONTINUE TO MONITOR NOAA WEATHER RADIO...LOCAL RADIO AND TV...AND CABLE TV STATIONS FOR THE LATEST WEATHER FORECASTS AND ADVISORIES UNTIL THE STORMS PASS. 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.
Local storm report, Mar 7, 7:05 PM CST, 2 hours 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
705 PM CST SAT MAR 07 1998
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0415 PM CASTELL TX 1.75 INCH HAIL
03/07/98 LLANO 8 TO 9 MILES WEST OF
LLANO NEAR HWY 152
0440 PM WILLOW CITY TX 1.75 INCH HAIL
03/07/98 GILLESPIE DPS REPORTED GOLF BALL
SIZE HAIL
0625 PM POTTERS CREEK TX 1.75 INCH HAIL
03/07/98 COMAL 5 MILES NW OF CANYON CITY
REPORTED BY HAMS
0630 PM SATTLER TX 1.OO INCH HAIL
03/07/98 COMAL NR SATTLER AT HWY 306/2673
REPORTED BY HAMS
0650 PM GERONIMO TX 1.75 INCH HAIL
03/07/98 GUADALUPE 6NE GERONIMO
SPOTTER REPORTED GOLF BALL
SIZE HAIL
0655 PM ZORN TX 1.00 INCH HAIL
03/07/98 GUADALUPE NR ZORN
REPORTED FROM HAMSLocal storm report, Mar 7, 7:05 PM CST, 2 hours 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
705 PM CST SAT MAR 07 1998
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0415 PM CASTELL TX 1.75 INCH HAIL
03/07/98 LLANO 8 TO 9 MILES WEST OF
LLANO NEAR HWY 152
0440 PM WILLOW CITY TX 1.75 INCH HAIL
03/07/98 GILLESPIE DPS REPORTED GOLF BALL
SIZE HAIL
0625 PM POTTERS CREEK TX 1.75 INCH HAIL
03/07/98 COMAL 5 MILES NW OF CANYON CITY
REPORTED BY HAMS
0630 PM SATTLER TX 1.OO INCH HAIL
03/07/98 COMAL NR SATTLER AT HWY 306/2673
REPORTED BY HAMS
0650 PM GERONIMO TX 1.75 INCH HAIL
03/07/98 GUADALUPE 6NE GERONIMO
SPOTTER REPORTED GOLF BALL
SIZE HAIL
0655 PM ZORN TX 1.00 INCH HAIL
03/07/98 GUADALUPE NR ZORN
REPORTED FROM HAMSLocal storm report, Mar 7, 8:10 PM CST, 58 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
810 PM CST SAT MAR 07 1998
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0415 PM CASTELL TX 1.75 INCH HAIL
03/07/98 LLANO 8 TO 9 MILES WEST OF
LLANO NEAR HWY 152
0440 PM WILLOW CITY TX 1.75 INCH HAIL
03/07/98 GILLESPIE DPS REPORTED GOLF BALL
SIZE HAIL
0625 PM POTTERS CREEK TX 1.75 INCH HAIL
03/07/98 COMAL 5 MILES NW OF CANYON CITY
REPORTED BY HAMS
0630 PM SATTLER TX 1.OO INCH HAIL
03/07/98 COMAL NR SATTLER AT HWY 306/2673
REPORTED BY HAMS
0650 PM GERONIMO TX 1.75 INCH HAIL
03/07/98 GUADALUPE 6NE GERONIMO
SPOTTER REPORTED GOLF BALL
SIZE HAIL
0655 PM ZORN TX 1.00 INCH HAIL
03/07/98 GUADALUPE NR ZORN
REPORTED FROM HAMS
0700 PM KINGSBURY TX FUNNEL CLOUD
03/07/98 GUADALUPE COUNTY DPS REPORTED FUNNEL CLOUD
0710 PM LULING TX 1.75 HAIL
03/07/98 CALDWELL 5W OF LULING
LULING PD REPORTED
MARBLE TO GOLF BALL SIZE
HAIL
715 PM LULING TX .75 HAIL
03/07/98 CALDWELL NICKLE SIZE HAIL
REPORTED BY SPOTTERLocal storm report, Mar 7, 8:10 PM CST, 58 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
810 PM CST SAT MAR 07 1998
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0415 PM CASTELL TX 1.75 INCH HAIL
03/07/98 LLANO 8 TO 9 MILES WEST OF
LLANO NEAR HWY 152
0440 PM WILLOW CITY TX 1.75 INCH HAIL
03/07/98 GILLESPIE DPS REPORTED GOLF BALL
SIZE HAIL
0625 PM POTTERS CREEK TX 1.75 INCH HAIL
03/07/98 COMAL 5 MILES NW OF CANYON CITY
REPORTED BY HAMS
0630 PM SATTLER TX 1.OO INCH HAIL
03/07/98 COMAL NR SATTLER AT HWY 306/2673
REPORTED BY HAMS
0650 PM GERONIMO TX 1.75 INCH HAIL
03/07/98 GUADALUPE 6NE GERONIMO
SPOTTER REPORTED GOLF BALL
SIZE HAIL
0655 PM ZORN TX 1.00 INCH HAIL
03/07/98 GUADALUPE NR ZORN
REPORTED FROM HAMS
0700 PM KINGSBURY TX FUNNEL CLOUD
03/07/98 GUADALUPE COUNTY DPS REPORTED FUNNEL CLOUD
0710 PM LULING TX 1.75 HAIL
03/07/98 CALDWELL 5W OF LULING
LULING PD REPORTED
MARBLE TO GOLF BALL SIZE
HAIL
715 PM LULING TX .75 HAIL
03/07/98 CALDWELL NICKLE SIZE HAIL
REPORTED BY SPOTTERThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 7, 6:18 PM CST | Severe Thunderstorm Warning | EWX | Comal | 42 min |
| Mar 7, 6:45 PM CST | Severe Thunderstorm Warning | EWX | Guadalupe | 60 min |
| Mar 7, 6:59 PM CST | Severe Thunderstorm Warning | EWX | Caldwell | 31 min |
| Mar 7, 7:04 PM CST | Tornado Warning | EWX | Guadalupe | 26 min |
| Mar 7, 7:15 PM CST | Tornado Warning | EWX | Gonzales | 45 min |
| Mar 7, 8:49 PM CST | Severe Thunderstorm Warning | EWX | Frio, Medina | 56 min |
| Mar 7, 9:23 PM CST | Severe Thunderstorm Warning | EWX | Atascosa, Bexar | 37 min |
| Mar 7, 9:48 PM CST | Severe Thunderstorm Warning | EWX | Wilson | 57 min |
| Mar 7, 9:56 PM CST | Severe Thunderstorm Warning | EWX | Atascosa | 34 min |
| Mar 7, 10:17 PM CST | Severe Thunderstorm Warning | EWX | DeWitt, Gonzales, Karnes, Lavaca | 58 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; the sounding from the Mesonet's radiosonde archive.