Alert archive / Texas / Tornado Warnings in 1998
Tornado Warning 7, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this tornado warning at Feb 10, 1998, 9:02 AM CST for Guadalupe County, Texas. It was in force for 58 min. 1 report 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
- Feb 10, 1998, 9:02 AM CST (15:02 UTC)
- Expired
- Feb 10, 1998, 10:00 AM CST
- In force
- 58 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Guadalupe County, TX
The radar
The Austin/San Antonio radar (KEWX), 16 km from the middle of the area, began a volume at 15:06 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 |
|---|---|---|---|
| Feb 10, 9:25 AM CST | Tornado F0 | Seguin, TX | A brief tornado was spotted by Department of Public Safety trooper near the Wilson County line. |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 10, 4:00 AM CST | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 3.0 hours before the alert went out and 214 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
- 847 J/kg
- Mixed-layer CIN
- -153 J/kg
- Mixed-layer LCL
- 571 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 267 m²/s²
- 0-3 km storm-relative helicity
- 293 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.8
The text
As transmitted, in the capitals the NWS used until 2016.
693 WFUS1 KSAT 101506 RRA TORSAT TXC187-101600- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 902 AM CST TUE FEB 10 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 1000 AM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL TEXAS ...GUADALUPE COUNTY NATIONAL WEATHER SERICE DOPPLER RADAR INDICATED A POSSIBLE TORNADO NEAR LAVERNIA MOVING NORTH AT 30 MPH TOWARD THE SOUTHERN PORTION OF GUADALUPE COUNTY NEAR HIGHWAY 123. PEOPLE IN OR NEAR THE PATH OF THIS STORM SHOULD TAKE IMMEDIATE ACTION TO PROTECT THEIR LIVES. GO TO THE CENTER ON THE LOWEST FLOOR OF YOUR BUILDING...COVER YOUR HEAD. STAY AWAY FROM DOORS AND WINDOWS. DO NOT STAY IN MOBILE HOMES OR VEHICLES...GET INTO A STURDY BUILDING. THIS IS A DANGEROUS STORM...ACT QUICKLY. IF YOU ARE IN THE PATH OF THIS TORNADO...GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. ABANDON CARS AND MOBILE HOMES.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 10, 3:13 AM CST | Severe Thunderstorm Warning | EWX | Kerr | 62 min |
| Feb 10, 3:31 AM CST | Severe Thunderstorm Warning | EWX | Bandera | 44 min |
| Feb 10, 3:50 AM CST | Severe Thunderstorm Warning | EWX | Gillespie, Kerr | 55 min |
| Feb 10, 3:52 AM CST | Severe Thunderstorm Warning | EWX | Kerr | 53 min |
| Feb 10, 4:42 AM CST | Severe Thunderstorm Warning | EWX | Gillespie | 33 min |
| Feb 10, 5:01 AM CST | Severe Thunderstorm Warning | EWX | Llano | 59 min |
| Feb 10, 5:28 AM CST | Severe Thunderstorm Warning | EWX | Blanco | 62 min |
| Feb 10, 5:39 AM CST | Severe Thunderstorm Warning | EWX | Bandera | 51 min |
| Feb 10, 5:53 AM CST | Severe Thunderstorm Warning | EWX | Burnet | 67 min |
| Feb 10, 6:00 AM CST | Severe Thunderstorm Warning | EWX | Kendall | 60 min |
| Feb 10, 6:31 AM CST | Severe Thunderstorm Warning | EWX | Zavala | 59 min |
| Feb 10, 7:05 AM CST | Severe Thunderstorm Warning | EWX | Medina | 55 min |
| Feb 10, 7:30 AM CST | Severe Thunderstorm Warning | EWX | Atascosa, Bexar | 75 min |
| Feb 10, 8:26 AM CST | Severe Thunderstorm Warning | EWX | Wilson | 64 min |
| Feb 10, 8:44 AM CST | Tornado Warning | EWX | Wilson | 46 min |
| Feb 10, 9:11 AM CST | Severe Thunderstorm Warning | EWX | Gonzales | 64 min |
| Feb 10, 9:24 AM CST | Tornado Warning | EWX | Gonzales | 66 min |
| Feb 10, 9:45 AM CST | Severe Thunderstorm Warning | EWX | DeWitt | 60 min |
| Feb 10, 10:00 AM CST | Severe Thunderstorm Warning | EWX | Lavaca | 60 min |
| Feb 10, 10:34 AM CST | Tornado Warning | EWX | Lavaca | 41 min |
| Feb 10, 3:10 PM CST | Severe Thunderstorm Warning | EWX | Bastrop, Caldwell | 65 min |
| Feb 10, 4:13 PM CST | Severe Thunderstorm Warning | EWX | Bastrop | 62 min |
Nearby
Tornado Warnings in Texas, 1998Every tornado warning in 1998Tornadoes 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.