Alert archive / Texas / Tornado Warnings in 1998
Tornado Warning 9, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this tornado warning at Feb 10, 1998, 10:34 AM CST for Lavaca County, Texas. It was in force for 41 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
- Feb 10, 1998, 10:34 AM CST (16:34 UTC)
- Expired
- Feb 10, 1998, 11:15 AM CST
- In force
- 41 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Lavaca County, TX
The radar
The Austin/San Antonio radar (KEWX), 112 km from the middle of the area, began a volume at 16:34 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, 10:40 AM CST | Thunderstorm Wind | Yoakum, TX | |
| Feb 10, 11:00 AM CST | Thunderstorm Wind | Halletsville, TX | Severe downbursts damaged roofs, awnings and carports of homes, and blew over trees. Two mobile homes were destroyed near Hallettsville by the wind. Wind gusts at the airport in Yoakum were measured at 73 kts. |
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, 10:00 AM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 4.6 hours before the alert went out and 188 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.
251 WFUS1 KSAT 101635 RRA TORSAT TXC285-101715- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1034 AM CST TUE FEB 10 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 1115 AM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL TEXAS ...LAVACA COUNTY AT 1033 AM RADAR INDICATED A TORNADIC THUNDERSTORM NEAR HALLETSVILLE MOVING NORTHEAST AT 30 MPH. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED BUILDING. AS A LAST RESORT...SEEK SHELTER IN A DITCH OR LOW SPOT AND COVER YOUR HEAD.
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, 9:02 AM CST | Tornado Warning | EWX | Guadalupe | 58 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, 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.